Hi Guys,I'm building a search service to query unprojected attribute data, project it, and deliver the extent back to the client. The method I'm using works unpredictably. For are larger land parcels it re-projects perfectly find, but for really small land parcels, quarter sections, it won't reproject using the getEnvelope() method. Can anyone offer some advice on how I might fix this problem?Here is a snippet of the code:
// Step 2: Get reference to SOM.
IServerObjectManager som = conn.getServerObjectManager();
// Step 3: Get Map object reference.
IServerContext context = som.createServerContext("myGeodataService", "GeoDataServer");
IGeoDataServer gs = (IGeoDataServer)context.getServerObject();
// Step 4: Set up query filter.
IQueryFilter qf = (IQueryFilter)context.createObject(QueryFilter.getClsid());
StringBuffer whereClause = new StringBuffer("");
int i = 0;
for(CplDLSQuarter value: queryResults) {
if(i == 0) whereClause.append("LAND_PARCEL_IDENTIFIER = '" + value.getLandParcelId() + "'");
else whereClause.append(" OR LAND_PARCEL_IDENTIFIER = '" + value.getLandParcelId() + "'");
++i;
}
if (whereClause.length() > 1) qf.setWhereClause(whereClause.toString());
SpatialReferenceEnvironment srFactory = (SpatialReferenceEnvironment)context.createObject(SpatialReferenceEnvironment.getClsid());
ProjectedCoordinateSystem pcSystem = (ProjectedCoordinateSystem)srFactory.createESRISpatialReferenceFromPRJFile(ags.getProjectionsMap().get(proj));
qf.setOutputSpatialReferenceByRef("SHAPE", pcSystem);
IResultPortionInfo rpi = (IResultPortionInfo)context.createObject(ResultPortionInfo.getClsid());
rpi.setStartIndex(0);
rpi.setCount(gs.getMaxRecordCount());
IGDSQueryResultPortion resPortion = gs.tableSearch(
gs.getDefaultWorkingVersion(),
"SCHEMA.SDE_TABLE",
qf,
rpi);
IRecordSet recs = resPortion.getRecords();
ICursor cursor = recs.getCursor(true);
IRow row;
while ((row = cursor.nextRow()) != null) {
ResultType result = new ResultType();
AttributesType attributes = new AttributesType();
//get the polygon.
Polygon poly = (Polygon)row.getValue(9);
poly.setSpatialReferenceByRef(pcSystem);
ExtentType extent = new ExtentType();
extent.setMaxx(new BigDecimal(poly.getEnvelope().getXMax()));
extent.setMaxy(new BigDecimal(poly.getEnvelope().getYMax()));
extent.setMinx(new BigDecimal(poly.getEnvelope().getXMin()));
extent.setMiny(new BigDecimal(poly.getEnvelope().getYMin()));
result.setExtent(extent);
//add the rest of the attributes.
//attributes.getAttribute().add(CplUtils.replaceNull());
attributes.getAttribute().add(CplUtils.replaceNull(poly.getSpatialReference().getName()));
attributes.getAttribute().add(CplUtils.replaceNull(row.getValue(0).toString()));
attributes.getAttribute().add(CplUtils.replaceNull(row.getValue(1).toString()));
attributes.getAttribute().add(CplUtils.replaceNull(row.getValue(4).toString()));
attributes.getAttribute().add(CplUtils.replaceNull(row.getValue(5).toString()));
attributes.getAttribute().add(CplUtils.replaceNull(row.getValue(8).toString()));
result.setAttributes(attributes);
//attach result to results
results.getResult().add(result);
}
