protected Iterable<? extends LatLon> computeDrawLocations(
DrawContext dc, SurfaceTileDrawContext sdc) {
ArrayList<LatLon> drawList = new ArrayList<LatLon>();
double safeDistanceDegreesSquared = Math.pow(this.computeSafeRadius(dc, sdc).degrees, 2);
for (LatLon location : this.getLocations()) {
if (this.computeLocationDistanceDegreesSquared(sdc.getSector(), location)
<= safeDistanceDegreesSquared) drawList.add(location);
}
return drawList;
}
@Override
protected void applyModelviewTransform(DrawContext dc, SurfaceTileDrawContext sdc) {
// Apply the geographic to surface tile coordinate transform.
Matrix modelview = sdc.getModelviewMatrix();
dc.getGL().glMultMatrixd(modelview.toArray(new double[16], 0, false), 0);
}
protected Angle computeSafeRadius(DrawContext dc, SurfaceTileDrawContext sdc) {
double regionPixelSize = this.computeDrawPixelSize(dc, sdc);
Angle sectorRadius = this.computeSectorRadius(sdc.getSector());
Angle iconRadius = this.computeIconRadius(dc, regionPixelSize, sdc.getSector());
return sectorRadius.add(iconRadius);
}