override public FeatureList process(FeatureList input, FilterEnv env)
{
//first time through, establish a working SRS for output data.
if (workingSrs == null)
{
//first try to use the terrain SRS if so directed:
SpatialReference newOutSrs = UseTerrainSrs ? env.getTerrainSRS() : null;
if (newOutSrs == null)
{
//failing that, see if we have an SRS in a resource:
if (Srs == null && SrsScript != null)
{
//Console.WriteLine("Borrame" + SrsScript.getCode());
Srs = env.getSession().Resources.getSRS(SrsScript.getCode());
#if TODO_PH
ScriptResult r = env.getScriptEngine().run(SrsScript, env);
if (r.isValid())
{
Srs = (env.getSession().Resources.getSRS(r.asString()));
throw new NotImplementedException();
}
else
{
env.getReport().error(r.asString());
}
#endif
}
newOutSrs = Srs;
}
//set the "working" SRS that will be used for all features passing though this filter:
workingSrs = newOutSrs != null ? newOutSrs : env.getInputSRS();
//LOCALIZE points arround a local origin (the working extent's centroid)
if (workingSrs != null && Localize)
{
if (env.getCellExtent().getSRS().isGeographic() && env.getCellExtent().getWidth() > 179)
{
//NOP - no localization for big geog extent ... needs more thought perhaps
}
else
{
GeoPoint centroid0 = newOutSrs == null?
newOutSrs.transform(env.getCellExtent()).getCentroid()
: env.getCellExtent().getCentroid();
//we do want the localizer point on the surface if possible:
GeoPoint centroid = ClampToTerrain(centroid0, env);
if (centroid == null)
{
centroid = centroid0;
}
Mogre.Matrix4 localizer = new Mogre.Matrix4();
//For geocentric datasets, we need a special localizer matrix:
if (workingSrs.isGeocentric())
{
localizer = workingSrs.getEllipsoid().createGeocentricInvRefFrame(centroid);
localizer = localizer.Inverse();
}
//For projected datasets, just a simple translation
else
{
localizer.SetTrans(new Mogre.Vector3((float)centroid.X, (float)centroid.Y, (float)0.0));
}
workingSrs = workingSrs.cloneWithNewReferenceFrame(localizer);
}
}
}
//we have to assing the output SRS on each pass
if (workingSrs != null)
{
env.setOutputSRS(workingSrs);
}
return(base.process(input, env));
}
override public FeatureList process(FeatureList input, FilterEnv env)
{
//first time through, establish a working SRS for output data.
if (workingSrs == null)
{
//first try to use the terrain SRS if so directed:
SpatialReference newOutSrs = UseTerrainSrs ? env.getTerrainSRS() : null;
if (newOutSrs == null)
{
//failing that, see if we have an SRS in a resource:
if (Srs == null && SrsScript != null)
{
//Console.WriteLine("Borrame" + SrsScript.getCode());
Srs = env.getSession().Resources.getSRS(SrsScript.getCode());
#if TODO_PH
ScriptResult r = env.getScriptEngine().run(SrsScript, env);
if (r.isValid())
{
Srs = (env.getSession().Resources.getSRS(r.asString()));
throw new NotImplementedException();
}
else
{
env.getReport().error(r.asString());
}
#endif
}
newOutSrs = Srs;
}
//set the "working" SRS that will be used for all features passing though this filter:
workingSrs = newOutSrs != null ? newOutSrs : env.getInputSRS();
//LOCALIZE points arround a local origin (the working extent's centroid)
if (workingSrs != null && Localize)
{
if (env.getCellExtent().getSRS().isGeographic() && env.getCellExtent().getWidth() > 179)
{
//NOP - no localization for big geog extent ... needs more thought perhaps
}
else
{
GeoPoint centroid0 = newOutSrs == null ?
newOutSrs.transform(env.getCellExtent()).getCentroid()
: env.getCellExtent().getCentroid();
//we do want the localizer point on the surface if possible:
GeoPoint centroid = ClampToTerrain(centroid0, env);
if (centroid == null)
{
centroid = centroid0;
}
Mogre.Matrix4 localizer = new Mogre.Matrix4();
//For geocentric datasets, we need a special localizer matrix:
if (workingSrs.isGeocentric())
{
localizer = workingSrs.getEllipsoid().createGeocentricInvRefFrame(centroid);
localizer = localizer.Inverse();
}
//For projected datasets, just a simple translation
else
{
localizer.SetTrans(new Mogre.Vector3((float)centroid.X, (float)centroid.Y, (float)0.0));
}
workingSrs = workingSrs.cloneWithNewReferenceFrame(localizer);
}
}
}
//we have to assing the output SRS on each pass
if (workingSrs != null)
{
env.setOutputSRS(workingSrs);
}
return base.process(input, env);
}
