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Check for valid multipolygon geometry when dragging nodes

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(this can get a bit expensive for large/complex multipolygons)
This commit is contained in:
Bryan Housel
2017-12-31 02:26:19 -05:00
parent 1bd41b894c
commit 9c27893748
4 changed files with 68 additions and 17 deletions
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test/spec/geo/geom.js
+6
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@@ -342,6 +342,12 @@ describe('iD.geo - geometry', function() {
expect(iD.geoPolygonIntersectsPolygon(outer, inner)).to.be.true;
});
it('returns false when inner polygon fully contains outer', function() {
var inner = [[0, 0], [0, 3], [3, 3], [3, 0], [0, 0]];
var outer = [[1, 1], [1, 2], [2, 2], [2, 1], [1, 1]];
expect(iD.geoPolygonIntersectsPolygon(outer, inner)).to.be.false;
});
it('returns true when outer polygon partially contains inner (some vertices contained)', function() {
var outer = [[0, 0], [0, 3], [3, 3], [3, 0], [0, 0]];
var inner = [[-1, -1], [1, 2], [2, 2], [2, 1], [1, 1]];