There are tools to overcome these problems, like the “Enclose multipatch” tool that will average the triangles until the multipatch is enclosed-but more often than not, for complex buildings it will simplify it too much. The reason behind this has something to do with requiring an ENCLOSED multipatch.įrom a technical viewpoint, I can understand why, as without polygon limits, how can you calculate the volume? Some would say that the process should take into account the ground to enclose the multipatch, but which datum is that? How do you know that there aren’t any small slithers that cannot be estimated? I thought I’d look at adding volumes for models from SketchUp and Google Earth, but to my surprise they failed. The problem occurred when I went to use more complex data.
Using the 3D Analyst “Add Z information” tool, I’ve been able to iterate through whole cities and automatically add height, volume, perimeters, and even roof slopes. For simple extruded footprint data, it has worked really well. Recently I’ve been working with calculating volumes of buildings that are multipatch data.
Calculate geometry x arcpy software#
This post is meant to help those who are using the software on a regular basis but finding issues with using the fields with multipatch data. Let’s be clear: this isn’t a stab at the all-new, singing and dancing Esri software.
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