MapViewer response

We're using Mapviewer 10.1.2 for our app and I'm trying to get list of themes that are currently displayed in the map so I can include them in the legend. The map response string should list all themes that have any features on the currently generated map (i'm using the URL formats so I have the responseString from the servlet) but it doesn't return me anything? Even when it generates lot of themes - it doesn't even have the themes element. Has anybody have any idea why is that?
thanks Jan
PS:
This is the generated xml response
<?xml version="1.0" encoding="UTF-8"?>
<map_response>
<map_image>
<map_content url="http://10.64.64.104:7777/mapviewer/images/omsmap144_96.png?refresh=5234959502344620123" />
<box srsName="default">
<coordinates>
1733750.0000000002,5417083.333333334 1759583.3333333333,5442916.666666667 </coordinates>
</box>
<xfm matrix="43.05555555555504 0.0 0.0 -43.05555555555504 1733750.0000000002 5442916.666666667" />
<WMTException version="1.0.0" error_code="SUCCESS">
</WMTException>
</map_image>
</map_response>

This information is now listed on the response of version 10.1.3.1.
<box srsName="default">
<coordinates></coordinates>
</box>
<themes>
<theme name="COUNTY_TH" />
</themes>
...

Similar Messages

Oracle Spatial Performance with 10-20.000 users

Does anyone have any experience when Oracle Spatial is used with say 20.000 concurrent users. I am not interested in MapViewer response time, but lets say there is:
- an app using 800 different tables each having an sdo_geometry column
- the app is configured with different tables visible on different view scales
- let's say an average of 40-50 tables is visible at any given time
- some tables will have only a few records, while other can hold millions.
- there is no client side caching
- clients can zoom in/out pan.
Anwers I am interested in:
- What sort of server would be required
- How can Oracle serve all that data (each Refresh renders the map and retrieves the data over the wire as there is no client side caching).
- What sort of network infrastructure would be required.
- Can clients connect to different servers and hence use load balancing or does Oracle have an automatic mechanism for that?
Thanks in advance,
Patrick

Patrick, et al.
There are lots of things one can do to improve performance in mapping environments because of a lot of the visualisation is based on "background" or read-only data. Here are some "tips":
1. Spatially sort read-only data.
This tip makes sure that data that is close to each other in space are next to each other on disk! Dan gave a good suggestion when he referenced Chapter 14, "Reorganize the Table Data to Minimize I/O" pp 580- 582, Pro Oracle Spatial. But just as easily one can create a table as select ... where sdo_filter() where the filtering object is an optimized rectangle across the whole of the dataset. (This is quite quick on 10g and above but much slower on earlier releases.)
When implementing this make sure that the created table is created such that its blocks are next to each other in the tablespace. (Consider tablespace defragmentation beforehand.) Also, if the data is READ ONLY set the PCTFREE to 0 in order to pack the data up into as small a number of blocks as possible.
2. Generalise data
Rendering spatial data can be expensive where the data is geometrically detailed (many vertices) esp where the data is being visualised at smaller scales than it was captured at. So, if your "zoom thresholds" allow 1:10,000 data to be used at 1:100,000 then you are going to have problems. Consider pre-generalising the data (see sdo_util.simplify) before deployment. You can add multiple columns to your base table to hold this data. Be careful with polygon data because generalising polygons that share boundaries will create gaps etc as the data is more generalised. Often it is better to export the data to a GIS which can maintain the boundary relationships when generalising (say via topological relationships).
Oracle's MapViewer has excellent on-the-fly generalisation but here one needs to be careful. Application tier caching (cf Bryan's comments) can help here a lot.
3. Don't draw data that is sub-pixel.
As one zooms out objects become smaller and smaller until they reach a point where the whole object can be drawn within a single pixel. If you have control over your map visualisation application you might want to consider setting the SDO_FILTER parameter "min_resolution" flag dynamically so that its value is the same as the number of meters / pixel (eg min_resolution=10). If this is set Oracle Spatial will only include spatial objects in the returned search set if one side of a geometry's MBR is greater than or equal to this value. Thus any geometries smaller than a pixel will not be returned. Very useful for large scale data being drawn at small scales and for which no selection (eg identify) is required. With Oracle MapViewer this behaviour can be set via the generalized_pixels parameter.
3. SDO_TOLERANCE, Clean Data
If you are querying data other than via MBR (eg find all land parcels that touch each other) then make sure that your sdo_tolerance values are appropriate. I have seen sites where data captured to 1cm had an sdo_tolerance value set to a millionth of a meter!
A corollary to this is make sure that all your data passes validation at the chosen sdo_tolerance value before deploying to visualisation. Run sdo_geom.validate_geometry()/validate_layer()...
4. Rtree Spatial Indexing
At 10g and above lots of great work went in to the RTree indexing. So, make sure you are using RTrees and not QuadTrees. Also, many GIS applications create sub-optimal RTrees by not using the additional parameters available at 10g and above.
4.1 If your table/column sdo_geometry data contains only points, lines or polygons then let the RTree indexer know (via layer_gtype) as it can implement certain optimizations based on this knowledge.
4.2 With 10g you can set the RTree's spatial index data block use via sdo_pct_free. Consider setting this parameter to 0 if the table/column sdo_geometry data is read only.
4.3 If a table/column is in high demand (eg it is the most commonly used table in all visualisations) you can consider loading (a part of) the RTree index into memory. Now, with the RTree indexing, the sdo_non_leaf_tbl=true parameter will split the RTree index into its leaf (contains actual rowid reference) and non-leaf (the tree built on the leaves) components. Most RTrees are built without this so only the MDRT*** secondary tables are built. But if sdo_non_leaf_tbl is set to true you will see the creation of an additional MDNT*** secondary table (for the non_leaf part of the rtree index). Now, if appropriate, the non_leaf table can be loaded into memory via the following:
ALTER TABLE MDNT*** STORAGE(BUFFER_AREA KEEP);
This is NOT a general panacea for all performance problems. One should investigate other options before embarking on this (cf Tom Kyte's books such as Expert Oracle Database Architecture, 9i and 10g Programming Techniques and Solutions.)
4.4 Don't forget to check your spatial index data quality regularly. Because many sites use GIS package GUI tools to create tables, load data and index them, there is a real tendency to not check what they have done or regularly monitor the objects. Check the SDO_RTREE_QUALITY column in USER_SDO_INDEX_METADATA and look for indexes with an SDO_RTREE_QUALITY setting that is > 2. If > 2 consider rebuilding or recreating the index.
5. The rendering engine.
Whatever rendering engine one uses make sure you try and understand fully what it can and cannot do. AutoDesk's MapGuide is an excellent product but I have seen it simply cache table/column data and never dynamically access it. Also, I have been at one site which was running Deegree and MapViewer and MapViewer was so fast in comparison to Deegree that I was called in to find out why. I discovered that Deegree was using SDO_RELATE(... ANYINTERACT ...) for all MBR queries while MapViewer was using SDO_FILTER. Just this difference was causing some queries to perform at < 10% of the speed of MapViewer!!!!
6. Consider "denormalising" data
There is an old adage in databases that is "normalise for edit, denormalise for performance". When we load spatial data we often get it from suppliers in a fairly flat or normalised form. In consort with spatial sorting, consider denormalising the data via aggregations based on a rendering attribute and some sort of spatial unit. For example, if you have 1 million points stored as single points in SDO_GEOMETRY.SDO_POINT which you want to render by a single attribute containing 20 values, consider aggregating the data using this attribute AND some sort of spatial BUCKET or BIN. So, consider using SDO_AGGR_UNION coupled with Spatial Analysis and Mining package functions to GROUP the data BY <<column_name>> and a set of spatial extents.
6. Tablespace use
Finally, talk to your DBA in order to find out how the oracle database's physical and logical storage is organised. Is a SAN being used or SAME arranged disk arrays? Knowing this you can organise your spatial data and indexes using more effective and efficient methods that will ensure greater scalability.
7. Network fetch
If your rendering engine (app server) and database are on separate machines you need to investigate what sort of fetch sizes are being used when returning data from queries to the middle-tier. Fetch sizes for attribute only data rows and rows containing spatial data can be, and normally are, radically different. Accepting the default settings for these sizes could be killing you (as could the sort_area_size of the Oracle session the application server has created on the database). For example I have been informed that MapInfo Pro uses a fixed value of 25 records per fetch when communicating with Oracle. I have done some testing to show that this value can be too small for certain types of spatial data. SQL Developer's GeoRaptor uses 100 which is generally better (but this one can modify this). Most programmers accept defaults for network properties when programming in ADO/ODBC/OLEDB/JDBC: just be careful as to what is being set here. (This is one of the great strengths of ArcSDE: its TCP/IP network transport is well written, tuneable and very efficient.)
8. Physical Format
Finally, while Oracle's excellent MapViewer requires data its spatial data to be in Oracle, other commercial rendering engines do not. So, consider using alternate, physical file formats that are more optimal for your rendering engine. For example, Google Earth Enterprise "compiles" all the source data into an optimal format which the server then serves to Google Earth Enterprise clients. Similarly, a shapefile on local disk to the application server (with spatial indexing) may be faster that storing the data back in Oracle on a database server that is being shared with other business databases (eg Oracle financials). If you don't like this approach and want to use Oracle only consider using a dedicated Oracle XE on the application server for the data that is read only and used in most of your generated maps eg contour or drainage data.
Just some things to think about.
regards
Simon

Mapviewer and MS ASP request/response?

Has anyone tried to send requests to Mapviewer using an ASP?
I have tried the code below but the Mapviewer>OMServer keeps responding with "Message:[oms] empty or null xml map request string..."
Any advice.
(here's the code...mind you I am not at all an ASP developer):
<%@ Language=VBScript %>
<HTML>
<HEAD>
</HEAD>
<%
'Put together some XML to post off
xmlString = "<?xml version=""1.0""?>" & vbcrlf
xmlString = xmlString & "<map_request title=""MapViewer Demonstration""" & vbcrlf
xmlString = xmlString & "datasource=""mvdemo""" & vbcrlf
xmlString = xmlString & "               basemap=""demo_map""" & vbcrlf
xmlString = xmlString & "               width=""500""" & vbcrlf
xmlString = xmlString & "               height=""375""" & vbcrlf
xmlString = xmlString & "               bgcolor=""#a6cae0""" & vbcrlf
xmlString = xmlString & "               antialiasing=""false""" & vbcrlf
xmlString = xmlString & "               format=""GIF_URL"">" & vbcrlf
xmlString = xmlString & "                    <center size=""5"" >" & vbcrlf
xmlString = xmlString & "                         <geoFeature>" & vbcrlf
xmlString = xmlString & "                         <geometricProperty>" & vbcrlf
xmlString = xmlString & "                              <Point>" & vbcrlf
xmlString = xmlString & "                              <coordinates>-122.2615, 37.5266</coordinates>" & vbcrlf
xmlString = xmlString & "                              </Point>" & vbcrlf
xmlString = xmlString & "                         </geometricProperty>" & vbcrlf
xmlString = xmlString & "                         </geoFeature>" & vbcrlf
xmlString = xmlString & "                    </center>" & vbcrlf
xmlString = xmlString & "          </map_request>"
'Load the XML into an XMLDOM object
Set SendDoc = server.createobject("Microsoft.XMLDOM")
SendDoc.ValidateOnParse= True
SendDoc.LoadXML(xmlString)
'Set the URL of the receiver
sURL = "http://foo.com:8888/mapviewer/omserver"
'Call the XML Send function (defined below)
set NewDoc = xmlSend (sURL, SendDoc)'xmlString)
'We receive back another XML DOM object!
'Tell the user what happened
response.Write "<b>XML DOC posted off:</b><br>"
response.write SendDoc.XML & "<br>"
response.write "<b>Target URL:</b> " & sURL & "<br>"
response.write "<b>XML DOC Received back: </b><br>"
response.write (NewDoc.Xml)
private function xmlsend(url, docSubmit)
Set poster = Server.CreateObject("MSXML2.ServerXMLHTTP")
poster.open "POST", url, false
poster.setRequestHeader "CONTENT_TYPE", "text/xml"
poster.send docSubmit
Set NewDoc = server.createobject("Microsoft.XMLDOM")
newDoc.ValidateOnParse= True
newDoc.LoadXML(poster.responseTEXT)
Set XMLSend = NewDoc
Set poster = Nothing
end function
%>
</HTML>

Hi Justin,
If you added 'xml_request=' directly to your 'docSubmit' variable, seems that the post.send function does not like. I think you should keep your xml as it was initially, and then figure out how to add the name 'xml_request' on your request. When MapViewer receives the request, it will try to get the value associated with parameter 'xml_request' which is your XML string.
Joao

MapViewer geometry theme 'mouse_click' doesn't always work in FF3

I have code that works with IE7 but not FireFox 3 (I'm using MapViewer Ver1033p5_B080908 and an 11.1.0.6 db). I've been able to duplicate it by only slightly modifying Oracle Maps demo #5, "Theme Based FOI layer visibility". Code is shown below.
I'm displaying two geometry themes. I need to know when the user clicks on either theme or the background. I add the themes and call setEventListener('mouse_click') for both themes and the mapview. In IE7 I get the expected result - one of the three handlers gets called depending on where I click. In FF3 (specifically 3.0.3) only the "top" theme's mouse handler is active. Cicking on the bottom theme - even when there is no overlap at all - only calls the mapview's handler. Same is true with info tooltips - they display for both themes in IE7, but only for the top theme in FF3. (http://www.navsys.com/BruceB/mapviewer.gif shows the two themes - one green, the other pink. On FF3 I never get a "hand" cursor or a tooltip over any of the pink areas, and clicking calls the mapview handler, not the theme handler.)
Incidently if I hide the "top" theme, then the mouse clicks/tooltip work again on the other theme.
Is this expected?
Thanks!
-Bruce
<html>
<head>
<META http-equiv="Content-Type" content="text/html" charset=UTF-8">
<TITLE>Map Cache Server/Map Client</TITLE>
<link rel="stylesheet" type="text/css" href="../t.css" />
<script language="Javascript" src="/mapviewer/fsmc/jslib/oraclemaps.js"></script>
<script language=javascript>
var mapview;
function showMap()
var baseURL = "http://"+document.location.host+"/mapviewer";
var mapCenterLon = -83.498
var mapCenterLat = 31.453;
var mapZoom = 4;
var mpoint = MVSdoGeometry.createPoint(mapCenterLon,mapCenterLat,8307);
mapview = new MVMapView(document.getElementById("map"), baseURL);
mapview.addMapTileLayer(new MVMapTileLayer("mapdata.demo_map"));
mapview.setCenter(mpoint);
mapview.setZoomLevel(mapZoom);
mapview.setEventListener('mouse_click',backgroundClick);
addThemeBasedFOI();
mapview.addNavigationPanel() ;
mapview.display();
function addThemeBasedFOI()
var themebasedfoi1 = new MVThemeBasedFOI('themebasedfoi1','grim.T_121_GBOTEST_70265_F');
themebasedfoi1.enableAutoWholeImage(true) ;
     themebasedfoi1.setEventListener('mouse_click',theme1clicked);
mapview.addThemeBasedFOI(themebasedfoi1);
var themebasedfoi2 = new MVThemeBasedFOI('themebasedfoi2','grim.TR_GBOTEST_86094_F');
themebasedfoi2.setEventListener('mouse_click',theme2clicked);
mapview.addThemeBasedFOI(themebasedfoi2);
function setVisible(item)
var themebasedfoi = mapview.getThemeBasedFOI(item.value);
themebasedfoi.setVisible(!themebasedfoi.isVisible());
function theme1clicked(pt,foidata,me)
     alert('Tour clicked');
function theme2clicked(pt,foidata,me)
     alert('Best clicked');
function backgroundClick()
alert('background click');
</script>
</head>
<body onload="javascript:showMap();">
<h3>Oracle Maps example - show/hide Theme Based FOI layers </h3>
<ul>
<LI ><INPUT TYPE="checkbox" value="themebasedfoi1" onclick="setVisible(this)" checked/>Show County population layer
<LI ><INPUT TYPE="checkbox" value="themebasedfoi2" onclick="setVisible(this)" checked/>Show Customer layer
</ul>
<div id="map" style="left:0px;top:10px;width:100%; height:60%"></div>
<HR/>
</body>
</html>

Alan McClean has alluded to the cause of this behaviour but I think others would benefit from a full explanation because it doesn't appear to be documented. I might add that Business Objects support were no help at all on this (they suggested I had a problem with my mouse, PC or network which I don't).
Normal response to a mouse double-click on a document name in InfoView XI3:
The double-click action performs the default action on the right-click list. This is the option you see in bold when you right-click on a document name. The default action is 'View' document. So when you double-click on the document it opens for viewing.
In CMC, under Applications>InfoView if you set 'Default viewing action on listing page:' to 'View the latest successful instance of the object' then the double-click behaviour changes:
The double-click action now tries to open the latest successful instance of a document. I found that any document in my Inbox or any document with instances (e.g. scheduled report) will still open for viewing using the double-click. For any other document the double-click fails silently. I assume this is because there simply isn't a latest instance to open.
Conclusions:
1. Don't use the 'View the latest successful instance of the object'. I have reset my CMC setting back to 'View the object'.
2. I think Business Objects should change the double-click behaviour so that rather than fail silently it opens the document.

Terrmap.jsp is not working (mapviewer 10.1.3)

Hi I cannot seem to get the terrmap demo to work. All I get is this error:
Servlet error: An exception occurred. The current application deployment descriptors do not allow for including it in this response. Please consult the application log for details.
Which tells me absolutely nothing.
I created a datasource like this:
<data-source class="com.evermind.sql.DriverManagerDataSource" name="MVDemoDS"
location="jdbc/OracleCoreDS"
xa-location="jdbc/xa/OracleXADS"
ejb-location="jdbc/MVDemoDS"
connection-driver="oracle.jdbc.driver.OracleDriver" username="mvdemo" password="mvdemo"
url="jdbc:oracle:thin:@localhost:1521:orcl"
inactivity-timeout="30"
/>
and restarted the oc4j
What am I doing wrong?

Hi Wendy,
It seems you are creating data source in Oracle Application Server configuration file. But, data source for Oracle MapViewer should be declared in Oracle MapViewer configuration file.
Oracle MapViewer configuration file, mapViewerConfig.xml is located in the $ORACLE_HOME/lbs/mapviewer/web/WEB-INF/conf. You should modify permanent map data source, defined in the <map_data_source>. Sample map data source declaration:
<map_data_source name="mvdemo"
            jdbc_host="elocation.us.oracle.com"
            jdbc_sid="orcl"
            dbc_port="1521"
            dbc_user="scott"
            jdbc_password="!tiger"
            jdbc_mode="thin"
            number_of_mappers="3"
/>Also, map data sources can be managed through web based Oracle MapViewer manager.
Regards,
Andrejus

OBIEE integrated to Mapviewer , need advice from expert people in my codes



Based on Example : [http://www.oracle.com/technology/products/mapviewer/pdf/mapviewer_obiee.pdf|blocked::http://www.oracle.com/technology/products/mapviewer/pdf/mapviewer_obiee.pdf]
*1- Using OBIEE , I create report with two fields and it's filter on
field Region:*
Region , Population


On OBIEE Answers: Statistic Text , I wrote this codes :
<!-div id must match arg in js call at bottom of code listing -->
<div id="EPAmapNode1"></div>
<script>
function readCookie(name) {
//this pulls authentication out of header
//which replaces needing to pass user/pwd
to authenticate (i.e. like SSO or trusted sign on)
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca;
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
return null;
function obiee_mapint_doTheDeed(nodeId) {
var container = document.getElementById(nodeId);
var sid = null;
var x = container;
do {
if (x.nodeName == 'TD' || x.nodeName == 'DIV') {
sid = x.getAttribute('sid');
if (sid != null && sid != '')
break;
x = x.parentNode;
while (x != null);
if (sid != null && sid != '') {
// create the iframe for content
var nid = readCookie('nQuireID')
if (nid) {
var iframe = document.createElement('iframe');
iframe.src =
'http://192.168.100.143:8991/yusufMap-ViewController-context-root/BIMapPage.html?sid='
+ encodeURIComponent(sid) + '&nqid=' + nid;
// following nsdp is subsequently called
from Mapviewer page
// passing sid and nqid to get results to
serve as nsdp data as xml
// ps["xml_url"] = "http://"+document.location.host+"/mapviewer/_epa/obiee_nsdp_xml_direct.jsp?nqid="
+
// urlParamNQID + "&sid=" +
urlParamSID;
iframe.height = 260;
iframe.width = 600;
iframe.frameBorder = 0;
iframe.marginHeight = 1;
iframe.marginWidth = 1;
container.appendChild(iframe);
obiee_mapint_doTheDeed('EPAmapNode1');
// js fn, EPAmapNode1 is id for this map in
dashbd
</script>
*2-Source code of
custom JSP to convert Answers Filtered XML into NSDP XML: obiee_nsdp_xml_direct.jsp*
<%@ page
language="java" session="true"
isThreadSafe="true" contentType="text/html; charset=UTF-8"
%>
<%@ page
import="javax.xml.parsers.*"%>
<%@ page
import="java.net.*"%>
<%@ page
import="java.io.*"%>
<%@ page
import="org.w3c.dom.*"%>
<%
Sample jsp code file to demonstrate one way to convert Answers xml to
MapViewer's NSDP xml
set the character encoding to UTF-8 prior to accessing
data in the request
request.setCharacterEncoding("UTF-8");
%>
<%
// RETRIEVE THE QUERY
STRING PARAMETERS
String userName =
request.getParameter("uid");
String userPassword =
request.getParameter("password");
String thesid =
request.getParameter("sid");
String nq_id =
request.getParameter("nqid");
if (userName == null) {
userName =
"mvdemo";
if (userPassword == null)
userPassword =
"mvdemo";
Document domDoc = null;
String fieldName = null;
String urlString =
"http://192.168.100.143:9704/analytics/saw.dll?Go&searchid=" +
thesid + "&format=xml&NQId=" + nq_id;
if (thesid != null) {
DocumentBuilderFactory
dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db =
dbf.newDocumentBuilder();
URL url = new URL(urlString);
URLConnection
URLconnection = url.openConnection();
HttpURLConnection
httpConnection = (HttpURLConnection)URLconnection;
int responseCode =
httpConnection.getResponseCode();
if ( responseCode ==
HttpURLConnection.HTTP_OK) {
InputStream in =
httpConnection.getInputStream();
System.out.println("thesid=
" + thesid);
System.out.println("nq_id="
+ nq_id);
System.out.println("server
host=" + request.getRemoteHost());
System.out.println("server
addr=" + request.getRemoteAddr());
domDoc = db.parse(in);
} else {
System.out.println(
"HTTP connection response != HTTP_OK" );
out.println("<nsdp_xml>");
out.println("<table>");
//Iterate
through metadata object and create the ndsp_xml header
NodeList rowDef =
domDoc.getElementsByTagName("element");
out.println("<tr>");
out.println("<th>Column
1</th><th>Column 2</th>");
out.println("</tr>");
//Iterate
through rows & items and create the ndsp_xml body
NodeList rows =
domDoc.getElementsByTagName("R");
if (rows != null) {
for (int i = 0; i <
rows.getLength(); i++) {
out.println("<tr>");
Node row = rows.item(i);
if (row == null ||
row.getNodeType() == Node.TEXT_NODE) {
continue;
NodeList items =
row.getChildNodes();
if (items == null) {
continue;
for (int y = 0; y < 2;
y++) {
Node item =
items.item(y);
if (item == null ||
item.getChildNodes() == null)
continue;
if (item.getChildNodes()
== null
||
item.getChildNodes().item(0) == null
|| item.getNodeType()
== Node.TEXT_NODE)
continue;
out.println("<td>"
+
item.getChildNodes().item(0).getNodeValue()
+ "</td>");
out.println("</tr>");
} else {
out.println("No
rows.");
out.println("</table>");
out.println("</nsdp_xml>");
%>
*3- Where the source Code of map I created on HTML : BIMapPage.html*
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01
Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta
http-equiv="Content-Type" content="text/html;
charset=windows-1252"></meta>
<title>BI Map
Page</title>
<script
language="Javascript" src="oraclemaps.js"></script>
<script
language="Javascript">
var dynStatesFOI;
function show_map(){
var map;
var homeCenter,
homeZoomLevel;
var baseURL =
"http://192.168.100.143:9704/mapviewer";
map = new
MVMapView(document.getElementById("map"), baseURL);
var mapSRID = 82364;
var mapCenterLon = 538940.5;
var mapCenterLat = 2690457.4;
homeZoomLevel = 1;
homeCenter =
MVSdoGeometry.createPoint(mapCenterLon, mapCenterLat, mapSRID);
map.addMapTileLayer(new MVMapTileLayer("tcg_gis.ksa_map"));
map.setCenter(homeCenter, false);
map.setZoomLevel(homeZoomLevel);
map.setHomeMap(homeCenter, homeZoomLevel);
map.addNavigationPanel("East");
map.addScaleBar();
dynStatesFOI = new
MVThemeBasedFOI('dynStatesFOI','tcg_gis.KSA_POP2');
dynStatesFOI.setRenderingStyle("C.COUNTIES");
setupNsdp(dynStatesFOI);
setupDynamicStyles(dynStatesFOI,250000,
500000, 750000);
map.addThemeBasedFOI(dynStatesFOI);
map.display();
function setupNsdp(dynStatesFOI)
var nsdpInfo = new
MVNSDP("defaultNSDP");
nsdpInfo.setTheme("KSA_POP2"); //the base theme
nsdpInfo.setKeyColumn("REGION_NAME");
//'match' column in the base table of the theme
nsdpInfo.setRenderStyle("C.COUNTIES"); //default style;
var ps = new Object();
{color:#ff0000}
ps["xml_url"] ="http://192.168.100.143/mapviewer/obiee_nsdp_xml_direct.jsp?nqid=" + urlParamNQID
+ "&sid=" + urlParamSID;{color} *{color:#800000}// <== Error line {color}*
nsdpInfo.setParameters(ps);
dynStatesFOI.setNSDP(nsdpInfo);
//setups the dynamically created advanced
style to
//be used by the theme-based FOI.
function setupDynamicStyles(dynStt,val1, val2, val3)
var buckets = new
Array(4);
buckets[0] = new
MVNumericRangedBucket(100000, val1, "C.COLOR_BLUE",
"range1");
buckets[1] = new
MVNumericRangedBucket(val1, val2, "C.COLOR_GREEN", "range2");
buckets[2] = new
MVNumericRangedBucket(val2, val3, "C.COLOR_RED", "range3");
buckets[3] = new
MVNumericRangedBucket(val3, null, "C.COLOR_BROWN",
"range4");
var bseries = new
MVBucketSeries("SCHEME_CUSTOM");
bseries.setBuckets(buckets);
var bucketSty = new
MVBucketStyle("region_colors", bseries);
dynStt.addStyle(bucketSty);
dynStt.setRenderingStyle("region_colors");
</script>
</head>
<body
onload="javascript:show_map();">
Welcome to our Site
Kingdom of Saudi Arabia
Map
<div
id="map"
style="width:550.0px; height:500.0px; overflow:auto;
border-color:rgb(0,0,0);"/>
</body>
</html>
{color:#ff0000}
The
highlighted line above from function setupNSDP is code line for: NSDP xml
source to call jsp that invokes java class to convert Answers filtered XML (OBIEE)
into NSDP XML.
Where
its invoke two parameters : 1- urlParamNQID , 2- urlParamSID
ps["xml_url"] =
"http://192.168.100.143/mapviewer/obiee_nsdp_xml_direct.jsp?nqid="
+ urlParamNQID + "&sid=" + urlParamSID;
The
error when we run this code is: URLParamNQID is not defined ???
does any of you can read what i wrote in my source codes and let me know what i missed in my html map code : BIMapPage.html and where or how i can get two parameters values URLParamNQID
and {color}*{color:#ff0000}urlParamSID{color}*{color:#ff0000}?{color}

yes i checked this site, but i still couldn't reach the answer of my challenge, in how to specify urlParamNQID and urlParamSID , how or where i can get value of these parameters or what should i pass there !?

Error in Running map from Jdeveloper Weblogic -MAPVIEWER-05523--06036

Hi,
I have deployed Mapviewer.ear on an integrated weblogic server and loaded mvdemo sample dataset into my db, and made required changes in map_data_source in mapViewerConfig.xml.
Now, I am able to run all the demo apps and tutorial. However, when I run the map code(basic map) in a jspx from Jdeveloper, I am getting the below error in a pop-up in the browser.
"[MVGlobalVariables.getMapCacheConfig]*MAPVIEWER-05523*:Cannot process response from MapViewer server.(MVDEMO.DEMO_MAP:MAPVIEWER-06036: MapTileServer is not read. Please try again later.)"
In the log, error is "<CacheInstanceConfig> <loadCacheStorageDef> Invalid cache root directory:/scrtach/mvdemomaps\. Cache root directory will be set to default root directory."
I am using Jdeveloper version 11.1.1.4.
What could be the issue, esp when demos are running successfully on the same server.

Ok, so the error comes cause the application is trying to get the tile layer from the server while the Mapviewer server is not ready.
So make sure you run your application once mapviewer server is up and running.
Now, for the problem that you get a blank page it is propably a javascript error as mapviewer gives no errors.
I have made a mistake in the previous post in the HTML section of my code. Give it a try now.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>testMap1</title>
<script language="Javascript" type="text/javascript" src="/mapviewer/fsmc/jslib/oraclemaps.js"> </script>
<script type="text/javascript">
var basemap1 = new MVMapTileLayer("mvdemo.demo_map");
function showMap()
//maybe formating is taking away the plus symbols. just make sure the base url is formatted correctly
var baseURL = "http://" + document.location.host + "/mapviewer";
var mapCenterLon = -122.45;
var mapCenterLat = 37.6706;
var mpoint = MVSdoGeometry.createPoint(mapCenterLon,mapCenterLat,8307);
var mapZoom = 5;
var mapview = new MVMapView(document.getElementById("map"), baseURL);
mapview.addMapTileLayer(basemap1);
mapview.setCenter(mpoint);
mapview.setZoomLevel(mapZoom);
mapview.addNavigationPanel("EAST");
mapview.display();
</script>
</head>
<body onload="showMap()">
<div id="map"
</div>
</body>
</html>
if you still get a blank page. Try using firefox with firebug and see what errors rise up in firebug. You should be able to find out what goes wrong with javascript.
Edited by: P.T on 17 Μαϊ 2011 5:11 πμ
Edited by: P.T on 17 Μαϊ 2011 5:15 πμ
Edited by: P.T on 17 Μαϊ 2011 5:15 πμ

Java.io.FileNotFoundException: Response: '404: Not Found' for url:

Hello,
I am in the processing porting a J2EE based application deployed originally in OC4J to WLS. I am not changing anything as far as J2EE/Web configuration files such as web.xml. Whenever I hit the URL of the application, I am getting the below exception.
What does usually "java.io.FileNotFoundException: Response: '404: Not Found' for url...." indicate?
If you could please give me some pointers to narrow down the places to look, I would appreciate it.
Thanks,
Mustafa
java.io.FileNotFoundException: Response: '404: Not Found' for url: 'http://cayc
001geo1:7001/IUS_Editor/mapservlet'
at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnectionjava:487)
at weblogic.net.http.SOAPHttpURLConnection.getInputStream(SOAPHttpURLConection.java:37)
at oracle.lbs.mapclient.MapViewer.getXMLResponse(MapViewer.java:6013)
at oracle.lbs.mapclient.MapViewer.getDataSources(MapViewer.java:629)
at gov.census.geo.maftiger.interactiveupdate.navigation.mapservlet.ISGegraphyController.getMapviewerDS(ISGeographyController.java:730)
at gov.census.geo.maftiger.interactiveupdate.navigation.mapservlet.ISGegraphyController.doPost(ISGeographyController.java:161)
at gov.census.geo.maftiger.interactiveupdate.navigation.mapservlet.ISGegraphyController.doGet(ISGeographyController.java:73)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:821)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.ru(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurtyHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.ja
a:300)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.ja
a:184)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActi

Hello,
I was able to sort out this issue. I was comparing the web.xml and found out that the servlet-mapping was missing.
Thanks,
Mustafa

Mapviewer errorhandling

Hi,
is there a way to handle errors, i.e database connection issues and similar ?
I simulated a broken database-connection by blocking out the server. When making a request, the server throws java.sql.SQLException's on the console. However, in my client, I get this response:
<?xml version="1.0" encoding="UTF-8"?>
<map_response>
<map_image>
<map_content url="http://localhost:8888/mapviewer/images/omsmap5_44.png?refresh=-1938097623516322933" />
<box srsName="sdo:32632">
<coordinates>586543.8605697479,6642771.753227037 587796.7852685659,6643450.6823 58752</coordinates>
</box>
<xfm matrix="0.8968680735991478 0.0 0.0 -0.8968680735992433 586543.8605697479 6643450.682358752" />
<WMTException version="1.0.0" error_code="SUCCESS"></WMTException>
</map_image>
</map_response>
There is no exceptions thrown on the client-side here, and I get a blue image with scalebar/legend.

Hello user 1157569,
you should find the mapviewer.ear in the downloaded "fmw_12.1.3.0.0_mapviewer.jar".
Unpack the "fmw_12.1.3.0.0_mapviewer.jar" (rename to "fmw_12.1.3.0.0_mapviewer.zip" for instance)
Go to \Disk1\stage\Components\oracle.mapviewer\12.1.3.0.0\DataFiles\
Unpack "filegroup1.jar"
Go to \modules\oracle.mapviewer\mapviewer.ear
Enjoy the day
Kind regards
/kk

Using MapViewer in JSP

Hi,
Are there any example where we can use the methods sendXMLRequest() and getXMLResponse of the MapViewer class from a jsp page ?
The response I got for the server using these methods are "Message:[oms] empty or null xml map request string."
thanks

Respect sir i m sending a code given below.sir i want to identify the map location,but my code give the some error,i could't understand what i do.becoz error are shown array out of bound index..please help me.
Code..
<%@ page contentType="text/html;charset=UTF-8" %>
<%@ page session="true" %>
<%@ page import="java.util.Enumeration" %>
<%@ page import="java.awt.geom.Point2D" %>
<%@ page import="java.awt.Dimension" %>
<%@ page import="oracle.lbs.mapclient.MapViewer" %>
<html>
<head>

<script language="Javascript">
// Color Picker Script from Flooble.com
// For more information, visit
// You may use and distribute this code freely, as long as
// you keep this copyright notice and the link to flooble.com
// if you chose to remove them, you must link to the page
// listed above from every web page where you use the color
// picker code.
var perline = 9;
var divSet = false;
var curId;
var colorLevels = Array('0', '3', '6', '9', 'C', 'F');
var colorArray = Array();
var ie = false;
var nocolor = 'none';
     if (document.all) { ie = true; nocolor = ''; }
     function getObj(id) {
          if (ie) { return document.all[id]; }
          else {     return document.getElementById(id);     }
function addColor(r, g, b) {
     var red = colorLevels[r];
     var green = colorLevels[g];
     var blue = colorLevels;
     addColorValue(red, green, blue);
function addColorValue(r, g, b) {
     colorArray[colorArray.length] = '#' + r + r + g + g + b + b;
function setColor(color) {
     var link = getObj(curId);
     var field = getObj(curId + 'field');
     var picker = getObj('colorpicker');
     field.value = color;
     if (color == '') {
          link.style.background = nocolor;
          link.style.color = nocolor;
          color = nocolor;
     } else {
          link.style.background = color;
          link.style.color = color;
     picker.style.display = 'none';
     eval(getObj(curId + 'field').title);
function setDiv() {
     if (!document.createElement) { return; }
var elemDiv = document.createElement('div');
if (typeof(elemDiv.innerHTML) != 'string') { return; }
genColors();
elemDiv.id = 'colorpicker';
     elemDiv.style.position = 'absolute';
elemDiv.style.display = 'none';
elemDiv.style.border = '#000000 1px solid';
elemDiv.style.background = '#FFFFFF';
elemDiv.innerHTML = '<span style="font-family:Verdana; font-size:11px;">Pick a color: '
     + '(No color)<br>'
     + getColorTable()
     + '</span>';
document.body.appendChild(elemDiv);
divSet = true;
function pickColor(id) {
     if (!divSet) { setDiv(); }
     var picker = getObj('colorpicker');
          if (id == curId && picker.style.display == 'block') {
               picker.style.display = 'none';
               return;
     curId = id;
     var thelink = getObj(id);
     picker.style.top = getAbsoluteOffsetTop(thelink) + 20;
     picker.style.left = getAbsoluteOffsetLeft(thelink);
     picker.style.display = 'block';
function genColors() {
addColorValue('0','0','0');
addColorValue('3','3','3');
addColorValue('6','6','6');
addColorValue('8','8','8');
addColorValue('9','9','9');
addColorValue('A','A','A');
addColorValue('C','C','C');
addColorValue('E','E','E');
addColorValue('F','F','F');
for (a = 1; a < colorLevels.length; a++)
               addColor(0,0,a);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(a,a,5);
for (a = 1; a < colorLevels.length; a++)
               addColor(0,a,0);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(a,5,a);
for (a = 1; a < colorLevels.length; a++)
               addColor(a,0,0);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(5,a,a);
for (a = 1; a < colorLevels.length; a++)
               addColor(a,a,0);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(5,5,a);
for (a = 1; a < colorLevels.length; a++)
               addColor(0,a,a);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(a,5,5);
for (a = 1; a < colorLevels.length; a++)
               addColor(a,0,a);
for (a = 1; a < colorLevels.length - 1; a++)
               addColor(5,a,5);
     return colorArray;
function getColorTable() {
var colors = colorArray;
     var tableCode = '';
tableCode += '<table border="0" cellspacing="1" cellpadding="1">';
for (i = 0; i < colors.length; i++) {
if (i % perline == 0) { tableCode += '<tr>'; }
tableCode += '<td bgcolor="#000000"><a style="outline: 1px solid #000000; color: '
     + colors[i] + '; background: ' + colors[i] + ';font-size: 10px;" title="'
     + colors[i] + '" href="javascript:setColor(\'' + colors[i] + '\');">   </a></td>';
if (i % perline == perline - 1) { tableCode += '</tr>'; }
if (i % perline != 0) { tableCode += '</tr>'; }
tableCode += '</table>';
     return tableCode;
function relateColor(id, color) {
     var link = getObj(id);
     if (color == '') {
          link.style.background = nocolor;
          link.style.color = nocolor;
          color = nocolor;
     } else {
          link.style.background = color;
          link.style.color = color;
     eval(getObj(id + 'field').title);
function getAbsoluteOffsetTop(obj) {
     var top = obj.offsetTop;
     var parent = obj.offsetParent;
     while (parent != document.body) {
          top += parent.offsetTop;
          parent = parent.offsetParent;
     return top;
function getAbsoluteOffsetLeft(obj) {
     var left = obj.offsetLeft;
     var parent = obj.offsetParent;
     while (parent != document.body) {
          left += parent.offsetLeft;
          parent = parent.offsetParent;
     return left;
function areaClicked(event, info)
alert(info);
</script>
     
<style>
#tbar_rect
border : 1px solid red;
height : 0px;
left : 0px;
position : absolute;
top : 0px;
visibility : hidden;
width : 0px;
#infotip_window
position: absolute;
width: 150px;
border: 1px solid grey;
padding: 2px;
background-color: #DFDFDF;
visibility: hidden;
z-index: 100;
</style>
     
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>
CEA DIGITAL MAP OF INDIA
</title>
</head>
<body bgcolor="#D8D1C7">
<span style="width:100%">
     <form name=map action="try.jsp" method="get">
<table cellpadding="0" cellspacing="0" border="0" width="100%" summary="">
<tr><td>
<table cellpadding="0" cellspacing="2" border="0" width="100%" summary="">
<tr><td valign="top"></td></tr>
<FONT color="#449922" size="+1"><b>CEA MAP</b></FONT> </td></tr>
</table>
</td>
</tr>
<tr><td valign="top">
<table cellpadding="0" cellspacing="0" border="0" summary="">
<tr><td align="center"><img src="/mapviewer/myicons/t.gif" border="0" /></td></tr>
</table> </td>
</tr>
</table>
<hr>
</span>

<%
String v1=request.getParameter("q1");
// out.print(v1);
     String v = request.getParameter("q");
String dataSrc = request.getParameter("datasrc-select");
     String[][] CEA = null;
String mvURL = request.getParameter("mvurl");
if(mvURL==null || mvURL.length()==0)
mvURL = "http://"+ request.getServerName()+":"+request.getServerPort()+
request.getContextPath()+"/omserver";
// out.print(v);
     boolean newSession = false;
// retrieve mapviewer client handle from session
MapViewer mv = (MapViewer) session.getAttribute("gvis_mvhandle");
if(mv==null)
// create a new mapviewer client handle
mv = new MapViewer(mvURL);
mv.setImageFormat(MapViewer.FORMAT_PNG_URL);
mv.setMapTitle(" ");
session.setAttribute("gvis_mvhandle", mv); // keep client handle in session
newSession = true;
// enable only user selected themes
String[] checkedThemes = request.getParameterValues("_mthemev_");
if(checkedThemes!=null && checkedThemes.length>0)
mv.enableThemes(checkedThemes);
String action = request.getParameter("action");
if(action==null) action = "recenter";
String[] dataSrcList = null;
String mapW_ = request.getParameter("map_width"), mapH_=request.getParameter("map_height");
int mapW = 800, mapH = 500;
try{
mapW = Integer.parseInt(mapW_);
mapH = Integer.parseInt(mapH_);
}catch(Exception e){}
mv.setDeviceSize(new Dimension(mapW, mapH));
String aa_ = request.getParameter("map_aa");
boolean aa = false;
if(aa_!=null && "on".equalsIgnoreCase(aa_))
aa = true;
mv.setAntiAliasing(aa);
String query1=null, stroke1="#000000", fill1=null, tr1=null, labelc1=null, asis1,
query2=null, stroke2="#000000", fill2=null, tr2=null, labelc2=null, asis2,
query3=null, stroke3="#000000", fill3=null, tr3=null, labelc3=null, asis3,
               query4=null, stroke4="#000000", fill4=null, tr4=null, labelc4=null, asis4,
               query5=null, stroke5="#000000", fill5=null, tr5=null, labelc5=null, asis5;
//
//String v1=request.getParameter("v");
//session.putValue("v1",v);
query1 = "select geom from ";
          query1+=v;
          //query1+=",";
          // query1+="lineflow where line.fnode_=lineflow.lineid";
          //query1+=;
          //query1+=;
          //query1+=.;
          //query1+=;
          //query1+=;
          //query1+=lineflow.;
          //query1+=".";
          //query1+=lineid;
          // out.print(query1);
          // out.print(query1);
stroke1 = request.getParameter("stroke_1");
fill1 = request.getParameter("fill_1");
if(stroke1==null && fill1==null)
stroke1 = "green"; //default to black stroke
fill2 = "green";
tr1 = request.getParameter("tr_1");
String l = request.getParameter("lc_1");
          // out.print(l);
          labelc1=l;
int opacity1 = (tr1!=null && tr1.equals("on"))? 128 : -1;
String style1 = "gvis_"+("NONE".equals(stroke1)?"" : stroke1) + "_"+
("NONE".equals(fill1)?"" : fill1) +
((opacity1>0)?"128" : "");
asis1 = request.getParameter("asis_1");
//
query2 ="select GEOM from ";
          query2+="place";
          //query2+=" where ";
          //query2+="FNODE_='"+s+"'";
          //out.print(query2);
          // query2 = request.getParameter("query_2");
stroke2 = request.getParameter("stroke_2");
fill2 = request.getParameter("fill_2");
if(stroke2==null && fill2==null)
stroke2 = "#000000";
          fill2 = "red";
tr2 = request.getParameter("tr_2");
          String c = request.getParameter("lc_2");
          // out.print(c);
          labelc2=c;
//labelc2 = request.getParameter("lc");
          // out.print(labelc2);
int opacity2 = (tr2!=null && tr2.equals("on"))? 128 : -1;
String style2 = "gvis_"+("NONE".equals(stroke2)?"" : stroke2) + "_"+
("NONE".equals(fill2)?"" : fill2) +
((opacity2>0)?"128" : "");
asis2 = request.getParameter("asis_2");
//
     query3 ="select geom from ";
          query3+="bound";
//query3 = request.getParameter("query_3");
stroke3 = request.getParameter("stroke_3");
fill3 = request.getParameter("fill_3");
if(stroke3==null && fill3==null)
stroke3 = "white";
          fill2 = "white";
tr3 = request.getParameter("tr_3");
labelc3 = request.getParameter("lc_3");
int opacity3 = (tr3!=null && tr3.equals("on"))? 128 : -1;
String style3 = "gvis_"+("NONE".equals(stroke3)?"" : stroke3) + "_"+
("NONE".equals(fill3)?"" : fill3) +
((opacity3>0)?"128" : "");
asis3 = request.getParameter("asis_3");
//
String s = request.getParameter("t");
query4 ="select GEOM from ";
          query4+="Line";
          query4+=" where ";
          query4+="FNODE_='"+s+"'";
     //     out.print(s);
          //out.print(query4);
          // query4 = request.getParameter("query_4");
stroke4 = request.getParameter("stroke_4");
fill4 = request.getParameter("fill_4");
if(stroke4==null && fill4==null)
stroke4 = "red";
          fill4 = "red";
tr4 = request.getParameter("tr_4");
labelc4 = request.getParameter("lc_4");
int opacity4 = (tr4!=null && tr4.equals("on"))? 128 : -1;
String style4 = "gvis_"+("NONE".equals(stroke4)?"" : stroke4) + "_"+
("NONE".equals(fill4)?"" : fill4) +
((opacity4>0)?"128" : "");
asis4 = request.getParameter("asis_4");
     //
     query5 ="select * from ";
          query5+="place";
//query3 = request.getParameter("query_3");
stroke5 = request.getParameter("stroke_5");
fill5 = request.getParameter("fill_5");
if(stroke5==null && fill5==null)
stroke5 = "#000000";
          fill5 = "red";
tr5 = request.getParameter("tr_5");
labelc5 = request.getParameter("lc_5");
          //out.print(labelc5);
int opacity5 = (tr5!=null && tr5.equals("on"))? 128 : -1;
String style5 = "gvis_"+("NONE".equals(stroke5)?"" : stroke5) + "_"+
("NONE".equals(fill5)?"" : fill5) +
((opacity3>0)?"128" : "");
asis5 = request.getParameter("asis_5");
//
dataSrcList = mv.getDataSources();
// start processing the actual request
if(!newSession && request.getParameter("userClick.x")!=null) // user clicked on map
int x = Integer.parseInt(request.getParameter("userClick.x"));
int y = Integer.parseInt(request.getParameter("userClick.y"));
if(action.equals("recenter"))
mv.pan(x,y);
else if(action.equals("zoomin"))
mv.zoomIn(x,y, 1.5);
else if(action.equals("zoomout"))
mv.zoomOut(x,y, 1.5);
          else if(action.equals("point"))
               // mv.isClickable("theme1");
               // mv.addPointFeature(double x,double y,null,style5,"_gvis_style_text",double[] 0);
               // mv.getUserPoint(x,y);
//out.println(x);
          //out.println(y);
               else if(action.equals("id"))
String[] columns = new String[]{"AREA","CITY","id",
                                                  "a.GEOM.sdo_point.x X",
"a.GEOM.sdo_point.y Y",
                                                  "ANGLE"
//out.print(columns)
//find out the nearest office from where user clicked on the map
CEA = mv.identify(dataSrc,
"Place a", //which table
columns, //which columns to identify
"GEOM", //which geometry column
0, //srid of the geometry column
x,y //mouse click position on screen
Point2D Loc = null;
if(CEA!=null)
String X = CEA[1][10];
String Y = CEA[1][10];
Loc = new Point2D.Double(Double.parseDouble(X), Double.parseDouble(Y));
          out.print(Loc);
//mark where user clicked upon on the map with a PIN marker
Point2D p2 = mv.getUserPoint(x,y);
mv.addPointFeature(p2.getX(), p2.getY(), 0,
"M.CAPTIAL", //a Pin marker style
null, null, null);
//add a leader line from where user clicked to the nearest office
if(CEA!=null)
mv.addLinearFeature(new double[]{p2.getX(), p2.getY(), Loc.getX(), Loc.getY()},0, "NEAREST_LINE_STY", null, null, false);
/* For identifying action: use a previously generated map as backdrop
to avoid re-rendering all the base themes.
if(mv.getBackgroundImageURL()==null)
mv.setBackgroundImageURL(mv.getGeneratedMapImageURL());
String[] enabledThemes = mv.getEnabledThemes();
mv.setAllThemesEnabled(false); //temporarily disable all themes
mv.run(); // re-issue map request to draw the pin marker and leader line
//simply re-enable all themes
mv.enableThemes(enabledThemes);
mv.removeAllPointFeatures(); // clean up the PIN marker
mv.removeAllLinearFeatures(); // clean up the leader line as well
else if(!newSession) // user submitted new queries
if(mvURL!=null && mvURL.length()>0 &&
!mv.getServiceURL().equals(mvURL))
mv.setServiceURL(mvURL);
if(dataSrc!=null && dataSrc.length()>0)
mv.setDataSourceName(dataSrc);
if(query1!=null && query1.length()>9 && !mv.styleExists(style1))
mv.addColorStyle(style1, stroke1, fill1, opacity1, opacity1);
if(query2!=null && query2.length()>9 && !mv.styleExists(style2))
mv.addColorStyle(style2, stroke2, fill2, opacity2, opacity2);
if(query3!=null && query3.length()>9 && !mv.styleExists(style3))
mv.addColorStyle(style3, stroke3, fill3, opacity3, opacity3);
if(query4!=null && query4.length()>9 && !mv.styleExists(style4))
mv.addColorStyle(style4, stroke4, fill4, opacity4, opacity4);
if(query5!=null && query5.length()>9 && !mv.styleExists(style5))
mv.addColorStyle(style5, stroke5, fill5, opacity5, opacity5);
//add a temporary text style for labeling
mv.addTextStyleWithHalo("_gvis_style_text_", "PLAIN", "Serif", "12", "PLAIN", "#0000ff", 2.0);
//mv.deleteAllThemes();
if(query1!=null && query1.length()>9)
String query1_ = query1;
if(labelc1!=null && labelc1.length()>0)
int idx1 = query1.toUpperCase().indexOf("FROM");
int idx2 = query1.toUpperCase().indexOf(labelc1.toUpperCase());
if(idx2>0 && idx2 < idx1){} // already in the user query
else
query1_ = query1.substring(0, idx1) + ", "+labelc1+" "+
query1.substring(idx1, query1.length());
} else
labelc1 = null;
               mv.addJDBCTheme(dataSrc, "theme1", query1_, null, null,
style1, labelc1, "_gvis_style_text_", true);
if(query2!=null && query2.length()>9)
String query2_ = query2;
if(labelc2!=null && labelc2.length()>0)
int idx1 = query2.toUpperCase().indexOf("FROM");
int idx2 = query2.toUpperCase().indexOf(labelc2.toUpperCase());
if(idx2>0 && idx2 < idx1){} // already in the user query
else
query2_ = query2.substring(0, idx1) + ", "+labelc2+" "+
query2.substring(idx1, query2.length());
} else
labelc2 = null;
mv.addJDBCTheme(dataSrc, "theme2", query2_, null, null,
style2, labelc2 , "_gvis_style_text_", true);
if(query3!=null && query3.length()>9)
String query3_ = query3;
if(labelc2!=null && labelc2.length()>0)
int idx1 = query3.toUpperCase().indexOf("FROM");
int idx2 = query3.toUpperCase().indexOf(labelc3.toUpperCase());
if(idx2>0 && idx2 < idx1){} // already in the user query
else
query3_ = query3.substring(0, idx1) + ", "+labelc3+" "+
query3.substring(idx1, query3.length());
} else
labelc3 = null;
mv.addJDBCTheme(dataSrc, "theme3", query3, null, null,
style3, labelc3, "_gvis_style_text_", true);
//
if(query4!=null && query4.length()>9)
String query4_ = query4;
if(labelc4!=null && labelc4.length()>0)
int idx1 = query4.toUpperCase().indexOf("FROM");
int idx2 = query4.toUpperCase().indexOf(labelc4.toUpperCase());
if(idx2>0 && idx2 < idx1){} // already in the user query
else
query4_ = query4.substring(0, idx1) + ", "+labelc4+" "+
query4.substring(idx1, query4.length());
} else
labelc4 =null ;
mv.addJDBCTheme(dataSrc, "theme4", query4, null, null,
style4, labelc4, "_gvis_style_text_", true);
if(query5!=null && query5.length()>9)
String query5_ = query5;
if(labelc5!=null && labelc5.length()>0)
int idx1 = query5.toUpperCase().indexOf("FROM");
int idx2 = query5.toUpperCase().indexOf(labelc5.toUpperCase());
if(idx2>0 && idx2 < idx1){} // already in the user query
else
query5_ = query5.substring(0, idx1) + ", "+labelc5+" "+
query5.substring(idx1, query5.length());
} else
labelc5 =null ;
mv.addJDBCTheme(dataSrc, "theme5", query5, null, null,
style5, labelc5, "_gvis_style_text_", true);
//
          if(dataSrc!=null)
try{
mv.setFullExtent();
mv.run();
}catch(Exception e){out.println(e.getMessage()); }
} //user submitted queries
String url = mv.getGeneratedMapImageURL();
%>
<p><p>

<form action="try.jsp" name="Main" method="get">
<%
if(url!=null)
int w = (int)mv.getDeviceSize().getWidth(), h = (int)mv.getDeviceSize().getHeight();
%><div align="center">
<TABLE border="0" width="<%=w%>" cellpadding=0 cellspacing=0 bgcolor="yellow">
<TR>
<TD width="<%=w%>" bgcolor="white">
<input type="image" border color="yellow" bgcolor="white" border="1" SRC="<%=url%>" name="userClick" width="<%=w%>" height="<%=h%>" >
</TD>
               </TR>
<tr>
<td> Click on the map to:
<input type="radio" name="action" value="zoomin" <%= action.equals("zoomin")?"checked":""%> ><B><img src="/mapviewer/myicons/zoomin.gif" alt="zoom in"></B>
<input type="radio" name="action" value="recenter" <%= action.equals("recenter")?"checked":""%> ><B><img src="/mapviewer/myicons/pan.gif" alt="re-center"></B>
<input type="radio" name="action" value="zoomout" <%= action.equals("zoomout")?"checked":""%> ><B><img src="/mapviewer/myicons/zoomout.gif" alt="zoom out"></B>
                    <input type="radio" name="action" value="point" <%= action.equals("point")?"checked":""%>
                    ><B>Point
                    </B>
                    <input type="radio" name="action" value="id" <%= action.equals("id")?"checked":""%>
                    ><B>Identy
                    </B>
</td>
</tr>
<tr><td height="15"> </td></tr>
</TABLE>
<% }
%>
<table border="0" cellpadding="2" cellspacing="1">
<tr> <td>
<input type="hidden" name="datasrc-select" value="mvd">
     
               <input type="hidden" name=q value="<%=v%>">
               <input type="hidden" name="lc_1" value="REAL">
               <input type="hidden" name="lc_4" value="FNODE_">

<INPUT TYPE="checkbox" NAME="map_aa" <%=(mv.getAntiAliasing())?"CHECKED":""%> >AA
</td>
<td>ENTER THE LINE ID:
     <Input type="text" name="t"></td>
<td> <INPUT type=submit value=loadMap> </td>
</tr>
</tr>
<tr bgcolor="#ffffcc">
<td>Line:
<a href="javascript:pickColor('pick1097113087'); id="pick1097113087"
style="border: 1px solid #000000; font-family:Verdana; font-size:10px;
text-decoration: none;">   </a>
<input id="pick1097113087field" size="7"
type="hidden" title="color" name="stroke_1" value="<%=stroke1%>">
<script language="javascript">relateColor('pick1097113087', getObj('pick1097113087field').value);</script>
</td>
<td>Fill:
<a href="javascript:pickColor('pick1097113085'); id="pick1097113085"
style="border: 1px solid #000000; font-family:Verdana; font-size:10px;
text-decoration: none;">   </a>
<input id="pick1097113085field" size="7"
type="hidden" title="color" name="fill_1" value="<%=fill1%>">
<script language="javascript">relateColor('pick1097113085', getObj('pick1097113085field').value);</script>
</td>
</tr>
     <tr >
<td >
</td>
</tr>
     <tr><td><input type="hidden" name="lc_5" value=CITY></td>
</table></div>
</form>
     <% // display identified feature attributes if present
if(CEA!=null && CEA.length>0)
out.print(" <TABLE border=\"1\">\n");
for(int i=0; i<CEA.length; i++)
if(i==0) out.print("<TR BGCOLOR=\"#FFFF00\">");
else out.print("<TR>\n");
String[] row = CEA[i];
for(int k=0; k<row.length; k++)
out.print("<TD>"+row[k]+"</TD>");
out.print("</TR>\n");
out.print("</TABLE>");
%>
</form>
<p>
<P>
<HR size="1">
<P>
</body>
</html>

MapViewer 1.0 rc1 and Oracle Database 10g 10.1.0.2.0 Performace

I have just loaded the MV Demo and was a little disappointed at the performance. Below, I posted a sample of database fetch/rendering times. I was wondering if this was typical since this was my first experience with Map Viewer. And if not, where can I get some information to improve performance?
Terry
06/09/15 08:01:43 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 16ms
06/09/15 08:01:43 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 84145ms.
06/09/15 08:01:43 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 0ms
06/09/15 08:01:43 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 84300ms.
06/09/15 08:01:43 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 16ms
06/09/15 08:01:44 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 87443ms.
06/09/15 08:01:44 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 0ms
06/09/15 08:01:48 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 92155ms.
06/09/15 08:01:48 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 0ms
06/09/15 08:01:51 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 91921ms.
06/09/15 08:01:51 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 16ms
06/09/15 08:01:51 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 92186ms.
06/09/15 08:01:51 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 16ms
06/09/15 08:01:53 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 97024ms.
06/09/15 08:01:53 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 93618ms.
06/09/15 08:01:53 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 16ms
06/09/15 08:01:53 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 15ms
06/09/15 08:01:59 INFO [oracle.sdovis.DBMapMaker] **** time spent on loading features: 99739ms.
06/09/15 08:01:59 INFO [oracle.sdovis.DBMapMaker] **** time spent on rendering: 15ms

Thank for the quick reply. I was just doing a basic test to determine if Map Viewer would satisfy our target architecture and rich web client functional requirements. Everything checks out except for my lack of understanding on how to determine the best performance settings. I expect the development environment to be slower than production. Our actual production environment is many load balanced map and database servers.
Sorry about the lack of details.
Terry
Here are the particulars.
Test Application: http://localhost:8888/mapviewer/faces/fsmc/oraclemaps.jspx
Db server: Win 2003 Enterprise Edition 2 Xeon 3GHx processors with 8 GB RAM.
App Server Win XP Pro 2 Xeon 3Ghx processors with 1 Gb Ram.
App Server Sart Script:
cd C:\mv_qs\oc4j\j2ee\home
start C:\jdk1.5.0_04\bin\java -server -Xmx384M -jar oc4j.jar
Map Cahce Config: DEMO_MAP MVDEMO DEMO_MAP 10 true 256 256 true
Data Source Config: mvdemo mq thin:@172.19.35.10:1521:MQ 64 100
MapViewer Config:
<?xml version="1.0" ?>


<MapperConfig>
























<security_config>
<disable_direct_info_request> false </disable_direct_info_request>
</security_config>

























<ns_data_provider
id="defaultNSDP"
class="oracle.sdovis.NSDataProviderDefault"
/>










<map_data_source name="mvdemo"
jdbc_host="172.19.35.10"
jdbc_sid="MQ"
jdbc_port="1521"
jdbc_user="mq"
jdbc_password="mq001"
jdbc_mode="thin"
number_of_mappers="3"
/>
</MapperConfig>

Fail to load "/mapviewer/fsmc/jslib/oraclemaps.js"

I try to see map view in OBIEE 11.1.1.5, after adding Oracle map to mapviewer.
After clicking 'Apply' I see the following error exception:
Fail to load "/mapviewer/fsmc/jslib/oraclemaps.js"
When re clicking 'Apply', the report and the map are displayed correctly.
Does anyone familiar with that error and how to make it disappear?

Hi Sharma,
I am planning to implement the mapviewer in obiee 11.1.1.5 version. Could you please let me know the steps involved in this. I have tried with steps mentioned in some blogs but none of it are working.
Could you please help me on this. Waiting for your response..
Regards,
Sreekar Suri.

Firefox and Mapviewer

Hi all,
I am using MapViewer Ver11_1_1_B090416. In our webapp we perfrom serveral queries using binding variables in predefined MVThemeBasedFOI like this:
var objThemebasedfoi = new MVThemeBasedFOI("dynquery", strTheme);
objThemeBasedFOI.setQueryParameters(x1,x2);
objMapview.addThemeBasedFOI(objThemeBasedFOI);
My observation is that firefox does not render all FOI that correspond to the binding variables. In some cases it seems only to render those features with a minimum dimension. Features with an area less than that minimum are skipped.
This is the Mapviewer Log for Firefox:
FEINER: getMapper() succeeded.
15.09.2009 10:24:20 oracle.sdovis.LoadThemeData2 run
FEINER: LoadThemeData2 running thread: Thread-40
15.09.2009 10:24:20 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
AM FEINSTEN: [ AR_GP_GEBAEUDE_BY_NUTZUNG ]: -Infinity,-Infinity,NaN,NaN
15.09.2009 10:24:20 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
AM FEINSTEN: Theme query [ AR_GP_GEBAEUDE_BY_NUTZUNG ]: SELECT ID, GEOM, 'C.SPATIAL_QUERY', GEB_NR, 'T.GEBAEUDENR', 1, 'rule#0', BAUF_NR, FLAECHE, NUTZUNG, ID FROM GP_GEBAEUDE WHERE 's'='s' AND (NUTZUNG in (select column_value from table(:1)))
15.09.2009 10:24:20 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
FEINER: [ AR_GP_GEBAEUDE_BY_NUTZUNG ] Fetch size: 100
15.09.2009 10:24:20 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
INFO: [ AR_GP_GEBAEUDE_BY_NUTZUNG ] sql exec time: 16ms, total time loading 45 features: 31ms.
15.09.2009 10:24:20 oracle.lbs.mapserver.core.MapperPool freeMapper
FEINER: freeMapper() begins...
and for MSIE
FEINER: getMapper() succeeded.
15.09.2009 10:26:21 oracle.sdovis.LoadThemeData2 run
FEINER: LoadThemeData2 running thread: Thread-41
15.09.2009 10:26:21 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
AM FEINSTEN: [ AR_GP_GEBAEUDE_BY_NUTZUNG ]: -Infinity,-Infinity,NaN,NaN
15.09.2009 10:26:21 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
AM FEINSTEN: Theme query [ AR_GP_GEBAEUDE_BY_NUTZUNG ]: SELECT ID, GEOM, 'C.SPATIAL_QUERY', GEB_NR, 'T.GEBAEUDENR', 1, 'rule#0', BAUF_NR, FLAECHE, NUTZUNG, ID FROM GP_GEBAEUDE WHERE 's'='s' AND (NUTZUNG in (select column_value from table(:1)))
15.09.2009 10:26:21 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
FEINER: [ AR_GP_GEBAEUDE_BY_NUTZUNG ] Fetch size: 100
15.09.2009 10:26:21 oracle.sdovis.theme.PredGeomThemeProducer loadFeaturesInWindow
INFO: [ AR_GP_GEBAEUDE_BY_NUTZUNG ] sql exec time: 16ms, total time loading 45 features: 31ms.
15.09.2009 10:26:21 oracle.lbs.mapserver.core.MapperPool freeMapper
FEINER: freeMapper() begins...
As you can see in both cases 45 features are found but only IE renders all those features. Even when i call
var arFOI = objTemaL.getFOIData();
arFOI.length is 45 for IE but only 9 for firefox.
Is there any solution/workaround for this?
Regards!
Dominik

Hi!
Sorry for the late response... I was out of office...
Yes, there is a difference - see below
Firefox
Dec 1, 2009 11:00:48 AM oracle.lbs.foi.FOIServlet doPost
FINEST: ---- begin FOI response ----
{"foiarray":[{id:"601657",name:"196",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601657_9_10.png",x:2575464.23754974,y:5727936.67627708,width:9,height:10,area:"1141,1036,1142,1039,1142,1036,1141,1036",attrs:["Chemiepark","50.22","TK-Verteilerstationen","601657"]},{id:"601942",name:"9051",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601942_10_9.png",x:2575615.79627413,y:5728946.78592017,width:10,height:9,area:"1176,805,1179,806,1176,805,1176,805",attrs:["09006","110.33","TK-Verteilerstationen","601942"]},{id:"604000",name:"2521",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_604000_13_12.png",x:2575044.5120904,y:5728181.15173643,width:13,height:12,area:"1045,982,1046,985,1051,983,1050,980,1045,982,1045,982",attrs:["04204","370.57","TK-Verteilerstationen","604000"]},{id:"603549",name:"2817",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_603549_9_10.png",x:2574966.67754974,y:5728476.67592017,width:9,height:10,area:"1027,912,1028,915,1028,912,1027,912",attrs:["07204","50.99","TK-Verteilerstationen","603549"]}],attrnames:["Baufeld-Nr.","Fläche von Gebäude (m²)","Gebäudenutzung","Datenbankschlüssel"],themeMBR:[2574612.9425512175,5727734.938367478,0.0,2576424.8883674787],adjlevel:3,minx:2570478.0835822644,miny:5724622.825480397,maxx:2580559.7473364314,maxy:5732463.634162688,isWholeImg:false}
---- end FOI response ----IE
Dec 1, 2009 11:02:37 AM oracle.lbs.foi.FOIServlet doPost
FINEST: ---- begin FOI response ----
{"foiarray":[{id:"601733",name:"2817",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601733_8_8.png",x:2574975.27918226,y:5728454.28046082,width:8,height:8,attrs:["07204","17.9","TK-Verteilerstationen","601733"]},{id:"601602",name:"182",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601602_8_8.png",x:2575698.56499853,y:5727991.60301204,width:8,height:8,attrs:["Chemiepark","15.15","TK-Verteilerstationen","601602"]},{id:"601657",name:"196",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601657_9_10.png",x:2575464.23754974,y:5727936.67627708,width:9,height:10,attrs:["Chemiepark","50.22","TK-Verteilerstationen","601657"]},{id:"601699",name:"1098",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601699_8_8.png",x:2575508.88499853,y:5727797.76464456,width:8,height:8,attrs:["Chemiepark","17.86","TK-Verteilerstationen","601699"]},{id:"601867",name:"2519",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601867_8_8.png",x:2575096.8020904,y:5728174.40627708,width:8,height:8,attrs:["04202","17.65","TK-Verteilerstationen","601867"]},{id:"601942",name:"9051",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601942_10_9.png",x:2575615.79627413,y:5728946.78592017,width:10,height:9,attrs:["09006","110.33","TK-Verteilerstationen","601942"]},{id:"601951",name:"1021",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601951_8_8.png",x:2576409.49081479,y:5728103.57301204,width:8,height:8,attrs:["11004","17.82","TK-Verteilerstationen","601951"]},{id:"601954",name:"9003A",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601954_9_9.png",x:2575677.68627413,y:5729360.25755269,width:9,height:9,attrs:["90006","76.24","TK-Verteilerstationen","601954"]},{id:"601577",name:"835",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_601577_8_8.png",x:2575900.43372292,y:5728849.73336895,width:8,height:8,attrs:["Chemiepark","20.42","TK-Verteilerstationen","601577"]},{id:"602764",name:"1179B",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_602764_8_8.png",x:2575835.16160305,y:5727748.47046082,width:8,height:8,attrs:["12008","17.67","TK-Verteilerstationen","602764"]},{id:"602246",name:"845",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_602246_8_8.png",x:2575900.30372292,y:5728838.95627708,width:8,height:8,attrs:["Chemiepark","17.85","TK-Verteilerstationen","602246"]},{id:"604000",name:"2521",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_604000_13_12.png",x:2575044.5120904,y:5728181.15173643,width:13,height:12,attrs:["04204","370.57","TK-Verteilerstationen","604000"]},{id:"602648",name:"541",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_602648_8_8.png",x:2576014.50790666,y:5728539.5488283,width:8,height:8,attrs:["04006","17.87","TK-Verteilerstationen","602648"]},{id:"602312",name:"422",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_602312_8_8.png",x:2576254.12499853,y:5728601.20173643,width:8,height:8,attrs:["04002","17.9","TK-Verteilerstationen","602312"]},{id:"603549",name:"2817",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_603549_9_10.png",x:2574966.67754974,y:5728476.67592017,width:9,height:10,attrs:["07204","50.99","TK-Verteilerstationen","603549"]},{id:"603163",name:"9003B",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_603163_7_7.png",x:2575710.40627413,y:5729348.07336895,width:7,height:7,attrs:["90006","7.01","TK-Verteilerstationen","603163"]},{id:"603827",name:"2574",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_603827_7_7.png",x:2574604.20627413,y:5728037.01464456,width:7,height:7,attrs:["Chemiepark","8.27","TK-Verteilerstationen","603827"]},{id:"603094",name:"786",gtype:"3",imgurl:"http://gon14/mapviewer/images/foi/63_t1_S0_603094_8_8.png",x:2575433.72754974,y:5728650.86464456,width:8,height:8,attrs:["07200","17.77","TK-Verteilerstationen","603094"]}],attrnames:["Baufeld-Nr.","Fläche von Gebäude (m²)","Gebäudenutzung","Datenbankschlüssel"],themeMBR:[2574612.9425512175,5727734.938367478,0.0,2576424.8883674787],adjlevel:3,minx:2571039.3893848686,miny:5724622.825480397,maxx:2579998.441533827,maxy:5732463.634162688,isWholeImg:false}
---- end FOI response ----

External Map Source Adapter - MapViewer

<p>
Hi
I am developing an application using Oracle Maps of OracleMapViewer 10.1.3 using OC4J
</p>
<p>
The objective of this exercise is to make use of a cache generated by a non-MapViewer solution. The cache is stored at an external location and can be accessed by sending multiple HTTP requests. For any given extent, multiple HTTP requests needs to be sent to access the individual tiles covering the given area.
http://servername/mapname/cache?level=0&row=11&column=1
http://servername/mapname/cache?level=0&row=11&column=2
http://servername/mapname/cache?level=0&row=12column=1
http://servername/mapname/cache?level=0&row=12&column=2
The logic to identify the tiles is also available. The problem is that the getMapTileRequest(...) returns only one string and this when passed would return only one image tile. (Correct me if my understanding is wrong)
public abstract class MapSourceAdapter
<strong>public abstract String getMapTileRequest(TileDefinition tile);</strong>
public byte[] getTileImageBytes(TileDefinition tile) ;
public Properties getProperties() ;
One option is to have a servlet at the other end that would accept the extent and zoom level and then identify the tiles. But still it is not clear as whether MapViewer will accept one response or multiple responses from the external server.
Need some guidance in this aspect
Regards
Govindarajan
</p>

1. The mapviewer tile servlet can response to multiple tile requests simultaneously. It makes multiple calls to the getMapTileRequest method, each of which gets the URL for one tile. So if you can define the map tile layer(map cache instance) in such a way that its tiles have the same size as the external tiles, mapviewer should be able to handle the tile requests without problem. You also need to modify the XML tile layer(map cache instance) definition and add parameter "fetch_larger_tiles" to the root node and set its value to "false". Without this change, mapviewer will fetch map images that are several times larger than the actual tiles and cut them into tiles later on.
2. With the latest patch, you can define a custom tile layer on the client side and fetch the tiles directly from the non-mapviewer tile server. Because this approach does not duplicate the tiles in mapviewer's tile cache, it is better than 1 if the non-mapviewer tile server can serve the tiles as fast as mapviewer. Demo #50 on the mapviewer tutorial page shows how to use custom tile layer.

Question re: MapViewer and Network Model functions

Hi all,
Quick question re: MapViewer and it's support for the Network Model and the shortest-path functions. If I create a base map with a network theme based on my (large) network, and then use a jdbc_network_query on the same network to do some shortest path analysis will MapViewer use the (hopefully) cached copy of the Network to calculate the shortest path? i.e can I expect good response times once the cache is warmed up?
Thanks,
Steve

Hi Steve,
MapViewer uses the Network Java library to run the shortest path algorithm. This library is independent of the MapViewer cache, and also not thread safe. So for now the network is always loaded. The load time may be reduced if the request has a MBR, but it is not the ideal solution. There is a working going on, and we hope to avoid this load in future versions.
Thanks.

MapViewer response

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