protected void collectGeometryKeys(QuadMap qmap, QuadKeyList geom_keys)
{
// the starting LOD is the best fit the the cell size:
uint top_lod = getTopLod(qmap, map_layer);
foreach (MapLayerLevelOfDetail i in map_layer.getLevels())
{
MapLayerLevelOfDetail level_def = i;
uint lod = top_lod + level_def.getDepth();
// get the extent of tiles that we will build based on the AOI:
uint cell_xmin, cell_ymin, cell_xmax, cell_ymax;
qmap.getCells(
map_layer.getAreaOfInterest(), lod,
cell_xmin, cell_ymin, cell_xmax, cell_ymax);
for (uint y = cell_ymin; y <= cell_ymax; y++)
{
for (uint x = cell_xmin; x <= cell_xmax; x++)
{
QuadKey key = new QuadKey(x, y, lod, qmap);
for (uint k = 0; k < 4; k++)
{
geom_keys.push_back(key.createSubKey(k));
}
}
}
}
}
protected virtual void buildIndex(Profile _profile, osg.Group scene_graph)
{
QuadTreeProfile profile = (QuadTreeProfile)_profile;
if (profile == null)
{
return;
}
//osgGIS.notice() << "Rebuilding index..." << std.endl;
// first, determine the SRS of the output scene graph so that we can
// make pagedlod/lod centroids.
SpatialReference output_srs = map_layer.getOutputSRS(getSession(), getTerrainSRS());
// first build the very top level.
//scene_graph = new osg.Group();
// the starting LOD is the best fit the the cell size:
uint top_lod = getTopLod(profile.getQuadMap(), map_layer);
SmartReadCallback reader = new SmartReadCallback();
foreach (MapLayerLevelOfDetail i in map_layer.getLevels())
{
MapLayerLevelOfDetail level_def = i;
uint lod = top_lod + level_def.getDepth();
MapLayerLevelOfDetail sub_level_def = i + 1 != map_layer.getLevels().end() ? (i + 1).get() : null;
float min_range, max_range;
if (sub_level_def != null)
{
min_range = sub_level_def.getMinRange();
max_range = sub_level_def.getMaxRange();
}
// get the extent of tiles that we will build based on the AOI:
uint cell_xmin, cell_ymin, cell_xmax, cell_ymax;
profile.getQuadMap().getCells(
map_layer.getAreaOfInterest(), lod,
cell_xmin, cell_ymin, cell_xmax, cell_ymax);
for (uint y = cell_ymin; y <= cell_ymax; y++)
{
for (uint x = cell_xmin; x <= cell_xmax; x++)
{
osg.Node node;
QuadKey key = new QuadKey(x, y, lod, profile.getQuadMap());
//osgGIS.notify( osg.NOTICE )
// << "Cell: " << std.endl
// << " Quadkey = " << key.toString() << std.endl
// << " LOD = " << key.getLOD() << std.endl
// << " Extent = " << key.getExtent().toString() << " (w=" << key.getExtent().getWidth() << ", h=" << key.getExtent().getHeight() << ")" << std.endl
// << std.endl;
node = sub_level_def ?
createIntermediateIndexNode(key, min_range, max_range, reader.get()) :
createLeafIndexNode(key, reader);
if (node.valid())
{
string out_file = createAbsPathFromTemplate("i" + key.toString());
if (!osgDB.writeNodeFile(*(node.get()), out_file))
{
// osgGIS.warn() << "FAILED to write index file " << out_file << std.endl;
}
// at the top level, assemble the root node
if (i == map_layer.getLevels().begin())
{
double top_min_range = sub_level_def != null ? 0 : level_def.getMinRange();
osg.PagedLOD plod = new osg.PagedLOD();
plod.setName(key.toString());
plod.setFileName(0, createRelPathFromTemplate("i" + key.toString()));
plod.setRange(0, top_min_range, level_def.getMaxRange());
plod.setPriorityScale(0, MY_PRIORITY_SCALE);
setCenterAndRadius(plod, key.getExtent(), reader.get());
//osgGIS.notice() << "QK=" << key.toString() << ", Ex=" << key.getExtent().toString() << ", Cen=" << key.getExtent().getCentroid().toString() << std.endl;
scene_graph.addChild(plod);
}
}
}
}
}
}
