feat: Polygon operations #1198
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feat: Polygon operations #1198
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The next step is to add support for annotation layers. This is a necessary antecedent to supporting more complex annotation editing options, such as paint brush and wand tools, and, in general behaving in expected manners with polygons with holes. |
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Closes #845. |
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perf: Explicitly have annotation defaults
feat: Add controls to combine and change annotations.
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🎉 This PR is included in version 1.9.0 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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This adds some polygon operation utilities. The utilities are in
geo.util.polyopsand areunion,difference,intersect, andxor. Basic usage isunion(poly1, poly2, opts), where the polygons can be in a variety of formats including taken from a polygon feature. The options allow a variety of control. Internally, we use the polybool library, which (with the right branch) has proven to be reliable in the past.This shows intersection two polygon features, one shown in blue and one in red, with the output in green:
