Latest Contributions by WeifengHe

public void GetSubtypes(IFeatureClass featureClass) { // Cast the feature class to the ISubtypes interface. ISubtypes subtypes = (ISubtypes)featureClass; // then you can enumeraate subtypes. IEnumSubtype enumSubtype = subtypes.Subtypes } ... View more

For multiple polylines, please use ITopologicalOperator::ConstructUnion method ... View more

I think there are some existing  ArcObjects methods might be useful to you. IConstructCurve.ConstructExtended http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#//002m000000t6000000 IConstructLine.ConstructExtended http://resources.arcgis.com/en/help/arcobjects-net/componenthelp/index.html#/ConstructExtended_Method/002m000000v9000000/ ... View more

If you do not need the actual coordinates of any intersection(s) as you said, you can also use IRelationalOperator methods to test the spatial relation between geometries. ... View more

If you want to know which type of curve in your geometry, get the GeometryType property of ISegment. ... View more

The intersection of a polygon and a polyline can be either a polyline (esriGeometry1Dimension) or a multipoint (esriGeometry0Dimension). depending on which one you pass in as the parameter.  In uvg's case, I think should be multipoint.  Can you provide the code and data so we can see why the output are the end points of the polyline? ... View more

Using the data you provided, I wrote a piece of VBA code, and the reshape call generates correct result. Sub Test_Reshape()     Dim mxDoc As IMxDocument     Set mxDoc = ThisDocument     Dim featLyr As IFeatureLayer     Dim featCls As IFeatureClass     Set featLyr = mxDoc.FocusMap.Layer(0) 'PolylineFC     Set featCls = featLyr.FeatureClass     Dim feat0 As IFeature     Set feat0 = featCls.GetFeature(0)     Dim geomColl0 As IGeometryCollection     Set geomColl0 = feat0.ShapeCopy     Dim geom0 As IGeometry     Set geom0 = geomColl0.Geometry(0)     Debug.Print geom0.GeometryType         Set featLyr = mxDoc.FocusMap.Layer(1) 'SlaveClass     Set featCls = featLyr.FeatureClass     Dim feat1 As IFeature     Set feat1 = featCls.GetFeature(0)     Dim geomColl1 As IGeometryCollection     Set geomColl1 = feat1.ShapeCopy     Dim geom1 As IGeometry     Set geom1 = geomColl1.Geometry(0)     Debug.Print geom1.GeometryType            Dim ring As IRing     Set ring = geom1     Dim path As IPath     Set path = geom0         Debug.Print ring.Reshape(path)     Debug.Print ring.IsEmpty End Sub ... View more

Can you please send the data containing the 2 geometries only.  I will write a piece of code to try to repro the problem. ... View more

Are the shaper geometry and edit geometry simple? ... View more

Without seeing the actual data and code, I can only take a guess on the cause of the problem. The error message should be "The coordinates or measures are out of bounds."  rather than the other one you mentioned, NETWORK_E_EDIT_SESSION_IN_PROGRESS.  The error code associated with this error message can be returned from various places in ArcGIS library.  In addition to check the feature geometry's location in the coordinate system, the attributes measurement such as Z and M is also considered as the possible cause here.  Also, if the geometry involves curve segment, like bezier, clothid, etc., can sometimes also causes this problem during the process. ... View more

Please go to the top of the page, there are lines highlighted in yellow shows how to mark the thread as answered. Thanks. ... View more

Can you please mark the thread as answered to close it, and help other people to find the solution to similar problems? Thanks. ... View more