MapViewer Dynamic Theme help

Question

I am using MapViewer 10g to create a JSP map, using JSP Tags as in the TagMap example. All works well, however, in building the page in question, beside creating and printing the map, I also use a within_distance query to print out a list of values. Now, on the map, I would like to be able to draw or add a dynamic theme which would be a semi-transparent raster circle, with a varying radius (dependent on the within_distance size) at the center of the map (X,Y). Any help would be greatly appreciated.

Answer 1

there is a bug in the addJDBCTheme tag where the asis attribute is ignored; normally if you set asis="true" then it should work (no spatial filter will be applied to your dynamic theme since it has no spatial index anyway). But somehow the asis attribute is ignored by the taglib.
The work around is to use the client api itself, as show below:
<%@ taglib uri="http://xmlns.oracle.com/j2ee/jsp/tld/ordim/mvtaglib.tld" prefix="mapviewer"%>
<P>Testing a point</P>
<P>
<mapviewer:init datasource="mvdemo"
url="http://localhost:8888/mapviewer/omserver"
id="mvhandle" />
<mapviewer:importBaseMap name="demo_map" />
<%
mvhandle.addJDBCTheme("mvdemo", "centerPoint",
"SELECT mdsys.sdo_geometry(2001, null, mdsys.sdo_point_type(-83, 39, null), null, null) geom FROM dual",
"geom", null, "M.CIRCLE", null, null, true); %>
<mapviewer:setParam centerX="-83" centerY="39" size="2" />
<mapviewer:run />
showing the map: <p>
<img src = "<mapviewer:getMapURL />" align=left />
</P>