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));
}
}
private void makeCap(
DrawContext dc,
GeometryBuilder.IndexedTriangleArray ita,
double altitude,
boolean terrainConformant,
int orientation,
Matrix locationTransform,
Vec4 referenceCenter,
int indexPos,
int[] indices,
int vertexPos,
float[] vertices,
float[] normals) {
GeometryBuilder gb = this.getGeometryBuilder();
Globe globe = dc.getGlobe();
int indexCount = ita.getIndexCount();
int vertexCount = ita.getVertexCount();
int[] locationIndices = ita.getIndices();
float[] locationVerts = ita.getVertices();
this.copyIndexArray(
indexCount,
(orientation == GeometryBuilder.INSIDE),
locationIndices,
vertexPos,
indexPos,
indices);
for (int i = 0; i < vertexCount; i++) {
int index = 3 * i;
Vec4 vec = new Vec4(locationVerts[index], locationVerts[index + 1], locationVerts[index + 2]);
vec = vec.transformBy4(locationTransform);
Position pos = globe.computePositionFromPoint(vec);
vec =
this.computePointFromPosition(
dc, pos.getLatitude(), pos.getLongitude(), altitude, terrainConformant);
index = 3 * (vertexPos + i);
vertices[index] = (float) (vec.x - referenceCenter.x);
vertices[index + 1] = (float) (vec.y - referenceCenter.y);
vertices[index + 2] = (float) (vec.z - referenceCenter.z);
}
gb.makeIndexedTriangleArrayNormals(
indexPos, indexCount, indices, vertexPos, vertexCount, vertices, normals);
}