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Merge pull request #1342 from mapbox/clipper-even-odd

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Use evenodd fill type for pre-tessellation union
This commit is contained in:
Dane Springmeyer
2015-04-29 10:35:14 -07:00
parent 65138a5d80 5d7dbf917f
commit 226799e811
1 changed files with 2 additions and 2 deletions
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4
src/mbgl/renderer/fill_bucket.cpp
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@@ -84,7 +84,7 @@ void FillBucket::tessellate() {
hasVertices = false;
std::vector<std::vector<ClipperLib::IntPoint>> polygons;
clipper.Execute(ClipperLib::ctUnion, polygons, ClipperLib::pftPositive);
clipper.Execute(ClipperLib::ctUnion, polygons, ClipperLib::pftEvenOdd, ClipperLib::pftEvenOdd);
clipper.Clear();
if (polygons.size() == 0) {
@@ -132,7 +132,7 @@ void FillBucket::tessellate() {
lineGroup.elements_length += total_vertex_count;
if (tessTesselate(tesselator, TESS_WINDING_POSITIVE, TESS_POLYGONS, vertices_per_group, vertexSize, 0)) {
if (tessTesselate(tesselator, TESS_WINDING_ODD, TESS_POLYGONS, vertices_per_group, vertexSize, 0)) {
const TESSreal *vertices = tessGetVertices(tesselator);
const size_t vertex_count = tessGetVertexCount(tesselator);
TESSindex *vertex_indices = const_cast<TESSindex *>(tessGetVertexIndices(tesselator));