Is spatial interpolation supported ?

Is spatial interpolation supported in Oracle Spatial?
And if it is not supported, where can I find good resources for doing it on Oracle ? Is there any free source code, on Java is preferable ?
Regards.

A string of coordinates in Oracle Spatial is a series of vertices in a poly-line. The line segments between vertices are always interpreted as straight lines (more properly, geodesics) in the particular coordinate system. In the case of a cartesian coordinate system, this is the same as a built-in linear interpolation as far as the internal computational geometry is concerned. And there is an implicit interpolation for line segments in geodetic space too. These implicit interpolations are used for all computational geometry in Oracle Spatial. In that sense interpolation is supported.
If the sense of the question is can the user define the interpolation: to follow lines on constant bearing, latitude parallels, or any other curve in the space -- the answer is no. To follow such a curve, the SDO_GEOMETRY must contain a high enough vertex density to capture the desired curve if it departs from a geodesic between more coarsely spaced points.

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How do I default the spatial interpolation to linear?

I went though the manual and it said to go under "Edit > Preferences > General, and select Default Spatial Interpolation To Linear."
However when I go into the preferences and under general, there are no setting for this change...
Image link of settings:
http://i2.photobucket.com/albums/y22/moody07747/Other/Computer/Screen%20Shots/Untitled.png
Anyone have an answer that works?
Thanks

Hi,
IF want use dependent lov ..then refer below link..
http://oracleanil.blogspot.com/2010/12/dependent-lov-in-oaf.html
Or
IF u want set any default value in lov2 when value selecetd in lov1...
Get the event of the lov1 on PFR..
if("LOv1ID").equals(pageContext.getParameter(SOURCE_PARAM))
&& ("lovUpdate".equals(pageConext.getParameter(EVENT_PARAM))
|| "lovValidate".equals(pageConext.getParameter(EVENT_PARAM))))
Here try set default value as given by Gyan...
Pls check syntax errors...
Regards
Meher Irk

What time Oracle Spatial Can support text object

Hi:
I want know what time oracle spatial can support text object. it is very useful for
GIS and LBS customer.
null

Hi,
I think it is an interesting idea, but there are difficulties when implementing such objects in the database level. For one thing, the placement, orientation of text for a point geometry is often dependent on point geometries stored in other rows in order to acheive an optimal and non-overlapping placement. It also depends on the font and size of the text, as well as the scale and level of detail when visualizing the spatial data. Such contextual information is only available to an application. I hope I understood you correctly and if you have further comments I would like to hear them too.

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Only found this when searching for my question, which is the same as David's from 2008, below. Need to make Keyframes default Spatial Interpolation as Linear.
Thanks.
Pete
(David_S.) wrote:
I went though the manual and it said to go under "Edit > Preferences > General, and select Default Spatial Interpolation To Linear."
However when I go into the preferences and under general, there are no setting for this change...
Image link of settings:
http://i2.photobucket.com/albums/y22/moody07747/Other/Computer/Screen% 20Shots/Untitled.png
Anyone have an answer that works?
Thanks

Actually that was Davids link from 2008. Sorry, I didn't check that link before sending. I think it is an old dead link.
If you go under Preferences and then General, there is no option for changing the keyframe Spatial Interpolation, like he describes the manual says. Either way, I can't seem to find a way to change it.
Thanks Bill, I wish you had an answer as well...

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Hi,
Are there any plans to add support for WKT or even Sql server spatial types so we can add custom polygons onto layers in Power Maps?
It would be really useful to be able to bring in our polygon data which is held in Sql Server.
Thanks
Ben

Fooster, can you submit this feature suggestion via the Smile and Frown button in the UI?
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Ed Price, Azure & Power BI Customer Program Manager (Blog,
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Julien

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Spatial support on IBM OS/390

Does Oracle Spatial work on IBM OS/390?
Which platforms does Oracle Spatial currently support?
Thanks!

Hi,
All platforms that support enterprise edition include Oracle Spatial.
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Geodetic spatial queries - sdo_relate

Hello,
The following script populates a spatial table with points on a query boundary and then queries that table using the query boundary. When using a srid of 8307 not all of the points are returned using sdo_relate. If the srid is NULL then all points 'on' the query boundary are returned.
In https://metalink.oracle.com/metalink/plsql/f?p=130:15:2437246749596129570
there is the statement...
"In a geodetic system, if there is a line defined from lat: 50, long: 30, lat:50, long: 35 that line does not go along the latitude 50 parallel.
Only the two end points will be at lat: 50, all the other interior points on that line will have a latitude value more than 50.
Due to this reason, the points along the lat: 50 are not part of the query window. "
Does anyone know the reasoning behind this statement? How can I determine what the interior points would be between a line defined as start point lat: 50, long: 30 to end point lat:50, long: 35?
Thanks in advance,
Rick
========= Script follows ============
geomdetic relate test case
This script demonstrates cases where sdo_relate, in a geodetic coordate system where
"A two point line on a given meridian, doesn't necessarily follow that meridian,
so any feature touching that meridian between those two points is not necessarily
touching that line""
The script generates an input query boundary using max and min values. It inserts
point features on the query boundary at input interval into a test table. '
A spatial query is executed against the test table using the query boundary.
DECLARE
TYPE ord_type IS TABLE OF NUMBER
INDEX BY BINARY_INTEGER;
x_tab ord_type;
y_tab ord_type;
maxlon NUMBER DEFAULT 65;
minlon NUMBER DEFAULT 64;
maxlat NUMBER DEFAULT 45 ;
minlat NUMBER DEFAULT 44;
INCREMENT NUMBER DEFAULT 0.001;
offset number default 0;
srid number default 8307;
curval NUMBER;
objectnotexists EXCEPTION;
PRAGMA EXCEPTION_INIT (objectnotexists, -942);
indexnotexists EXCEPTION;
PRAGMA EXCEPTION_INIT (indexnotexists, -1418);
PROCEDURE populate_array (
p_minval IN NUMBER,
p_maxval IN NUMBER,
p_increment IN NUMBER,
p_array IN OUT ord_type
IS
i BINARY_INTEGER DEFAULT 0;
BEGIN
curval := p_minval;
LOOP
p_array (i) := curval;
curval := curval + INCREMENT;
i := i + 1;
EXIT WHEN curval > p_maxval;
END LOOP;
END populate_array;
PROCEDURE insert_points_on_tangent (
p_tangent IN NUMBER,
p_ords IN ord_type,
orientation IN VARCHAR
IS
v_geom MDSYS.SDO_GEOMETRY;
i BINARY_INTEGER;
BEGIN
i := p_ords.FIRST; -- get subscript of first element
WHILE i IS NOT NULL
LOOP
IF orientation = 'Y'
THEN
v_geom :=
MDSYS.SDO_GEOMETRY (2001,
srid,
NULL,
MDSYS.sdo_elem_info_array (1, 1, 1),
MDSYS.sdo_ordinate_array (p_tangent,
p_ords (i)
ELSE
v_geom :=
MDSYS.SDO_GEOMETRY (2001,
srid,
NULL,
MDSYS.sdo_elem_info_array (1, 1, 1),
MDSYS.sdo_ordinate_array (p_ords (i),
p_tangent
END IF;
EXECUTE IMMEDIATE 'insert into sdo_relate_geom_test (geom, geom_type) values (:boundary, :geom_tag)'
USING v_geom, orientation || ' ' || i;
i := p_ords.NEXT (i); -- get subscript of next element
END LOOP;
END insert_points_on_tangent;
-- Create a table to hold the geometries.
PROCEDURE TEST
IS
v_geom MDSYS.SDO_GEOMETRY
DEFAULT MDSYS.SDO_GEOMETRY (2003,
srid,
NULL,
MDSYS.sdo_elem_info_array (1, 1003, 1),
MDSYS.sdo_ordinate_array (minlon,
minlat,
maxlon,
minlat,
maxlon,
maxlat,
minlon,
maxlat,
minlon,
minlat
v_viewportgeom MDSYS.SDO_GEOMETRY
DEFAULT MDSYS.SDO_GEOMETRY (2003,
0,
NULL,
MDSYS.sdo_elem_info_array (1, 1003, 1),
MDSYS.sdo_ordinate_array (minlon,
minlat,
maxlon,
minlat,
maxlon,
maxlat,
minlon,
maxlat,
minlon,
minlat
v_expected NUMBER;
v_relate_results NUMBER;
v_filter_results NUMBER;
v_relate_results_arc NUMBER;
v_dimino MDSYS.SDO_DIM_ARRAY;
v_count_sql VARCHAR2 (1000)
DEFAULT 'select count(*) from sdo_relate_geom_test';
v_filter_sql VARCHAR2 (1000)
DEFAULT 'SELECT count(*) '
|| ' FROM sdo_relate_geom_test '
|| ' WHERE MDSYS.sdo_filter '
|| ' (geom, '
|| ' :ingeom, '
|| ' ''MASK= ANYINTERACT QUERYTYPE=WINDOW'' '
|| ' ) = ''TRUE'' ';
v_relate_sql VARCHAR2 (1000)
DEFAULT 'SELECT count(*) '
|| ' FROM sdo_relate_geom_test '
|| ' WHERE MDSYS.sdo_relate '
|| ' (geom, '
|| ' :ingeom, '
|| ' ''MASK= ANYINTERACT QUERYTYPE=WINDOW'' '
|| ' ) = ''TRUE'' ';
BEGIN
EXECUTE IMMEDIATE v_count_sql
INTO v_expected;
EXECUTE IMMEDIATE v_filter_sql
INTO v_filter_results
USING v_geom;
EXECUTE IMMEDIATE v_relate_sql
INTO v_relate_results
USING v_geom;
DBMS_OUTPUT.put_line ( ' boundary minLat '
|| minlat
|| ' minLon '
|| minlon
|| ' maxLat '
|| maxlat
|| ' maxLon '
|| maxlon
||' increment '
|| INCREMENT
DBMS_OUTPUT.put_line ( 'expected '
|| v_expected
|| ' relate returned '
|| v_relate_results
|| ', '
|| 'filter returned '
|| v_filter_results
|| '. '
DBMS_OUTPUT.put_line('');
END TEST;
BEGIN
BEGIN
EXECUTE IMMEDIATE 'drop table sdo_relate_geom_test';
EXCEPTION
WHEN objectnotexists
THEN
NULL;
END;
EXECUTE IMMEDIATE 'create table sdo_relate_geom_test(geom mdsys.sdo_geometry, geom_type VARCHAR2(100))';
-- generate the points we want to test
populate_array (minlon, maxlon, INCREMENT, x_tab);
populate_array (minlat, maxlat, INCREMENT, y_tab);
-- insert the points on the query boundary
insert_points_on_tangent (minlon + offset, y_tab, 'Y');
insert_points_on_tangent (maxlon - offset, y_tab, 'Y');
insert_points_on_tangent (minlat + offset, x_tab, 'X');
insert_points_on_tangent (maxlat - offset, x_tab, 'X');
DELETE user_sdo_geom_metadata
WHERE table_name = 'SDO_RELATE_GEOM_TEST';
INSERT INTO user_sdo_geom_metadata
(table_name, column_name,
diminfo,
srid
VALUES ('SDO_RELATE_GEOM_TEST', 'GEOM',
MDSYS.sdo_dim_array (MDSYS.sdo_dim_element ('x',
-180,
180,
.00000005
MDSYS.sdo_dim_element ('y',
-90,
90,
.00000005
srid
BEGIN
EXECUTE IMMEDIATE 'drop index SDO_RELATE_GEOM_TEST_spa_idx';
EXCEPTION
WHEN indexnotexists
THEN
NULL;
END;
EXECUTE IMMEDIATE 'create index SDO_RELATE_GEOM_TEST_spa_idx on SDO_RELATE_GEOM_TEST(geom) indextype is mdsys.spatial_index';
TEST;
END;
/

In https://metalink.oracle.com/metalink/plsql/f?p=130:15:2437246749596129570
there is the statement...
"In a geodetic system, if there is a line defined from lat: 50, long: 30, lat:50, long: 35 that line does not go along the latitude 50 parallel.
Only the two end points will be at lat: 50, all the other interior points on that line will have a latitude value more than 50.
Due to this reason, the points along the lat: 50 are not part of the query window. "
Does anyone know the reasoning behind this statement? How can I determine what the interior points would be between a line defined as start point lat: 50, long: 30 to end point lat:50, long: 35?
In Oracle Spatial's support for geodetic coordinates, the line segments connecting consecutive vertices of a polygon or line string are geodesics - the shortest paths between the vertices on the earth spheroid. The shortest path between {30, 50} and {35, 50) does not coincide with the 50 latitude parallel, but goes to higher latitude. Only at the equator does the geodesic connecting points of constant latitude coincide with the latitude parallel.

Spatial - SDO_AGGR_UNION question.

I have extracted geo spatial informaton from a document and created sdo_geometry objects of different types in my database. I have polygons, points, lines, ellipsis, and multipoint types of gtypes. I am trying to aggregate them using SDO_AGGR_UNION. this is sql I am running - the dxc.xml_id is the id of my document which all of the rows have):
select SDO_AGGR_UNION(SDOAGGRTYPE(dxc.shape_geo, 0.005)) from DOCUMENT_GEO dxc where dxc.xml_id = 374;
I get this error:
ORA-29913: error in executing ODCIAGGREGATEITERATE callout
ORA-13031: Invalid Gtype in the SDO_GEOMETRY object for point object
ORA-13031: Invalid Gtype in the SDO_GEOMETRY object for point object
29913. 00000 - "error in executing %s callout"
*Cause: The execution of the specified callout caused an error.
*Action: Examine the error messages take appropriate action.
I am thinking that spatial only support aggregating points with points, polygons with polygons, lines with lines, etc. Can anyone confirm this. The documentation isn't clear. If you can aggregate points with other things I would love to know how its done. Thanks.

Your question is better off @ the Spatial Forum: Spatial

Locator or Spatial?

Please excuse my ignorance but I need a clarification. We are running Oracle 10g and I'm new to using the spatial technology. I am able to successfully create and populate a SDO_GEOMETRY column in a table and generate a spatial index. How do I know if I'm using the Locator or Spatial product? How do I ensure that I am using only the Locator product?

you can check it in the oracle spatial user guide.
http://download.oracle.com/docs/html/B14255_01/sdo_locator.htm#i632018
chapter
in the Part III Supplementary Information
section
B Oracle Locator
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Table B-1 Spatial Features Supported for Locator
Table B-2 Spatial Features Not Supported for Locator
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Re: ODP.Net + Spatial
Any support for spatial and .NET?

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thanks
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If not, are there any near future plans to support their storage, detection, or use in spatial queries?

Hi,
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So there is complete support for geodesics in Oracle.
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AP model and the features it supports
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20, 40, or 80Mhz wide channels
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Is spatial interpolation supported ?

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