void gstTextureManager::GetOverlayList(
const TexTile& tile,
std::vector<gstTextureGuard> &draw_list, const bool is_mercator_preview) {
khLockGuard guard(textureMapMutex);
gstBBox tilebox(tile.xx, tile.xx + tile.grid,
tile.yy, tile.yy + tile.grid);
if (is_mercator_preview) {
// If Mercator projection, expect image bounding box in meter;
// So convert viewable tile to meter for intersection test.
tilebox.init(khTilespace::DeNormalizeMeter(tilebox.w),
khTilespace::DeNormalizeMeter(tilebox.e),
khTilespace::DeNormalizeMeter(tilebox.s),
khTilespace::DeNormalizeMeter(tilebox.n));
} else {
// If Flat projection, expect image bounding box in degree;
// So convert viewable tile to degree for intersection test.
tilebox.init(khTilespace::Denormalize(tilebox.w),
khTilespace::Denormalize(tilebox.e),
khTilespace::Denormalize(tilebox.s),
khTilespace::Denormalize(tilebox.n));
}
for (std::map<uint, gstTextureGuard>::iterator it = texture_map_.begin();
it != texture_map_.end(); ++it) {
gstTextureGuard tex = it->second;
if (tex && tex->enabled() && tex != base_texture_) {
if (tilebox.Intersect(tex->bbox()))
draw_list.push_back(tex);
}
}
}
Box
MFIter::growntilebox (int ng) const
{
Box bx = tilebox();
if (ng < -100) ng = fabArray.nGrow();
const Box& vbx = validbox();
for (int d=0; d<BL_SPACEDIM; ++d) {
if (bx.smallEnd(d) == vbx.smallEnd(d)) {
bx.growLo(d, ng);
}
if (bx.bigEnd(d) == vbx.bigEnd(d)) {
bx.growHi(d, ng);
}
}
return bx;
}
