private void makeSectionOutlineIndices(
int subdivisions,
int vertexPos,
int indexPos,
int[] indices,
boolean beginEdgeFlag,
boolean endEdgeFlag) {
GeometryBuilder gb = this.getGeometryBuilder();
int count = gb.getSubdivisionPointsVertexCount(subdivisions);
int index = indexPos;
int pos, nextPos;
if (beginEdgeFlag) {
pos = vertexPos;
indices[index++] = pos;
indices[index++] = pos + 1;
}
for (int i = 0; i < count - 1; i++) {
pos = vertexPos + 2 * i;
nextPos = vertexPos + 2 * (i + 1);
indices[index++] = pos;
indices[index++] = nextPos;
indices[index++] = pos + 1;
indices[index++] = nextPos + 1;
}
if (endEdgeFlag) {
pos = vertexPos + 2 * (count - 1);
indices[index++] = pos;
indices[index] = pos + 1;
}
}
private int getSectionOutlineIndexCount(
int subdivisions, boolean beginEdgeFlag, boolean endEdgeFlag) {
GeometryBuilder gb = this.getGeometryBuilder();
int count = 4 * (gb.getSubdivisionPointsVertexCount(subdivisions) - 1);
if (beginEdgeFlag) count += 2;
if (endEdgeFlag) count += 2;
return count;
}
private void makeSectionVertices(
DrawContext dc,
int locationPos,
float[] locations,
double[] altitude,
boolean[] terrainConformant,
int subdivisions,
Matrix locationTransform,
Vec4 referenceCenter,
int vertexPos,
float[] vertices) {
GeometryBuilder gb = this.getGeometryBuilder();
int numPoints = gb.getSubdivisionPointsVertexCount(subdivisions);
Globe globe = dc.getGlobe();
int index1 = 3 * locationPos;
int index2 = 3 * (locationPos + 1);
float[] locationVerts = new float[3 * numPoints];
gb.makeSubdivisionPoints(
locations[index1],
locations[index1 + 1],
locations[index1 + 2],
locations[index2],
locations[index2 + 1],
locations[index2 + 2],
subdivisions,
locationVerts);
for (int i = 0; i < numPoints; 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);
for (int j = 0; j < 2; j++) {
vec =
this.computePointFromPosition(
dc, pos.getLatitude(), pos.getLongitude(), altitude[j], terrainConformant[j]);
index = 2 * i + j;
index = 3 * (vertexPos + index);
vertices[index] = (float) (vec.x - referenceCenter.x);
vertices[index + 1] = (float) (vec.y - referenceCenter.y);
vertices[index + 2] = (float) (vec.z - referenceCenter.z);
}
}
}
private void makeSectionFillIndices(
int subdivisions, int vertexPos, int indexPos, int[] indices) {
GeometryBuilder gb = this.getGeometryBuilder();
int count = gb.getSubdivisionPointsVertexCount(subdivisions);
int index = indexPos;
int pos, nextPos;
for (int i = 0; i < count - 1; i++) {
pos = vertexPos + 2 * i;
nextPos = vertexPos + 2 * (i + 1);
indices[index++] = pos + 1;
indices[index++] = pos;
indices[index++] = nextPos + 1;
indices[index++] = nextPos + 1;
indices[index++] = pos;
indices[index++] = nextPos;
}
}
private int getSectionVertexCount(int subdivisions) {
GeometryBuilder gb = this.getGeometryBuilder();
return 2 * gb.getSubdivisionPointsVertexCount(subdivisions);
}
private int getSectionFillIndexCount(int subdivisions) {
GeometryBuilder gb = this.getGeometryBuilder();
return 6 * (gb.getSubdivisionPointsVertexCount(subdivisions) - 1);
}