protected void makeTessellatedLocations(
Globe globe, int subdivisions, List<LatLon> locations, List<LatLon> tessellatedLocations) {
ArrayList<Vec4> points = new ArrayList<Vec4>();
for (LatLon ll : locations) {
points.add(globe.computePointFromLocation(ll));
}
//noinspection StringEquality
if (WWMath.computeWindingOrderOfLocations(locations) != AVKey.COUNTER_CLOCKWISE)
Collections.reverse(locations);
Vec4 centerPoint = Vec4.computeAveragePoint(points);
Vec4 surfaceNormal = globe.computeSurfaceNormalAtPoint(centerPoint);
int numPoints = points.size();
float[] coords = new float[3 * numPoints];
for (int i = 0; i < numPoints; i++) {
points.get(i).toFloatArray(coords, 3 * i, 3);
}
GeometryBuilder gb = new GeometryBuilder();
GeometryBuilder.IndexedTriangleArray tessellatedPoints =
gb.tessellatePolygon(0, numPoints, coords, surfaceNormal);
for (int i = 0; i < subdivisions; i++) {
gb.subdivideIndexedTriangleArray(tessellatedPoints);
}
for (int i = 0; i < tessellatedPoints.getVertexCount(); i++) {
Vec4 v = Vec4.fromFloatArray(tessellatedPoints.getVertices(), 3 * i, 3);
tessellatedLocations.add(globe.computePositionFromPoint(v));
}
}
