Hi guys
I've got a problem with spatial query.
I generate IGeometry igPairLine and compare it a map boundary (IGeometrybag gbBaseMap) using IRelationalOperator.
The purpose is checking whether a line is within the map boundary or not.
I repeat this process for thousands of thousands lines (literally). But 60 of them were wrong. My code determined they are within the map boundary, but actually not.
I don't know why exact same code make such error for certain cases.
Does anybody know why?
Thank you
I've got a problem with spatial query.
I generate IGeometry igPairLine and compare it a map boundary (IGeometrybag gbBaseMap) using IRelationalOperator.
The purpose is checking whether a line is within the map boundary or not.
I repeat this process for thousands of thousands lines (literally). But 60 of them were wrong. My code determined they are within the map boundary, but actually not.
I don't know why exact same code make such error for certain cases.
Does anybody know why?
Thank you
Code:
ISpatialReference sRef;
ifMerged = fcMerged.GetFeature(1);
IPoint pt = new PointClass();
pt = (IPoint)ifMerged.ShapeCopy;
sRef = pt.SpatialReference;
IPoint fromPoint = new PointClass();
IPoint toPoint = new PointClass();
fromPoint = pcTempPair.get_Point(0);
toPoint = pcTempPair.get_Point(1);
IPolyline5 ipPairLine = new PolylineClass();
ipPairLine.ToPoint = toPoint;
ipPairLine.FromPoint = fromPoint;
ipPairLine.Project(sRef);
IGeometry igPairLine = (IGeometry)ipPairLine;
IRelationalOperator relOperatore = (IRelationalOperator)gbBaseMap;
Boolean contain = relOperatore.Contains(igPairLine);