Questions tagged [complexity]

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Representing Polygon Complexity as readable attribute [closed]

I'm using QGIS and I have polygons such as this I would like to generate a feature table with the point in each polygon, and a sort of 'encoding' of the corresponding polygon. I would like to ...
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27 views

Is there any way to see a computational complexity of a tool?

For example, if I run a tool, ModelBuilder or ArcPy script and I select it's input data and parameters. Is there any way to see how complex the algorithm is in some kind of units? After the tool has ...
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1answer
66 views

What does the “bisector angle of vertex for original geometry” mean in the Extract Vertices tool?

I need to calculate the number of notches in my polygons. Therefore I need to know the angles of the vertices in a set polygons. I managed to extract a value for the angle by the Extract Vertices ...
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29 views

How does the runtime of Haralick texture generation scale with the number of bins/gray levels? (Orfeo)

I'm trying to generate some Haralick textures of various LiDAR-derived elevation models (digital height models and digital surface models). Because the height models (DHMs) have a lower bound of 0 and ...
1
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0answers
50 views

ArcGIS polyline dangling endpoints count

Is there a way for count the number of dangling endpoints of a polyline? I need that because I would like to define a feature complexity parameter. For example, on the image below, the number of ...
1
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1answer
315 views

Why is pgraster much slower?

This is a follow up question to my other question: How to speed up raster/map algebra in PostGIS? I am much attracted to the way how PostGIS handle vectors and rasters in an interoperable manner. A ...