Two geometries with different numbers of vertices are equal for ChangeDetector

I think i would consider it to be unchanged if using lenient geometry matching if the extra vertex lies exactly on the line as per your example

It seems that it may be so. The same thing happens with the Matcher transformer. Perhaps the behavior of “Lenient geometry matching” should be clarified in the documentation.

That is new to me.

I had thought Lenient Geometry would only perhaps go as far as to treat duplicate points (ie. Multiple vertices in a polygon/polyline that where within the Tolerance distance and therefore “duplicate”) on any input feature as being equivalent to a geometry that only had a single vertex at that location (ie. A geometry that had had duplicate vertices removed)

Personally, treating any other extra Vertices that are merely coincident on the edge of the polygon as being equivalent to an edge without the extra vertices is undesirable in virtually all production circumstances,  because you often need to insert these vertices for correct topological relationships and their presence is deliberate.  Treating a polygon without the extra topological vertex on its edge as equivalent, and therefore “Unchanged” would risk creating errors in the topology with adjacent features.

The main use for Lenient Geometry matching is because software like ArcGIS wants to reorder vertices in their features from the original source feature, but treating a coincident vertex on an edge as equivalent to an edge without that vertex is a step too far IMO given how that software similarly depends on vertex-to-vertex topology.

I would support an Idea to change this.

For me personally, lenient geometry matching would say something is unchanged if it is topologically equal, which in this case it is. Using a spatial relator which has no concept of tolerance would report these features as equal as would something like SDE.ST_EQUALS

Yeni olduğum için bazı şeyleri anlayamıyorum:) Bir ağaç modelim var. Ve 193 puanım var. Bu noktaların bir ağaç gibi görünmesini istiyorum. Yardımlarınız için çok teşekkür ederim. Verileri önceden tekrar gönderiyorum.

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