How to split a large JTS polygon into multiple 1 km by 1 km geometries?

Question

I am using Java, Geotools and JTS.

I have the envelope geometry of a large polygon's geometry.

I want to split it up into a collection of polygons that are all 1 km by 1 km wide.

Any idea for how to do this? Thank you. Peter

score 0 · Answer 1 · answered Aug 04 '19 at 08:14

0

I noticed that my approach is nonsense !

As the earth is not flat, you can not split a polygon into real squares with identical width/length !

If you did, the squares would overlap.

answered Aug 04 '19 at 08:14

Peter

score 0 · Answer 2 · answered Aug 04 '19 at 08:32

0

You need to use a planar projection and the GeoTools vector GridFeatureBuilder.

There is example code (using India) in my answer to this question.

answered Aug 04 '19 at 08:32

Ian Turton

2 Answers2