protected virtual uint queueTasks(Profile profile, TaskManager task_man)
{
uint level = 0;
foreach (MapLayerLevelOfDetail i in map_layer.getLevels())
{
MapLayerLevelOfDetail level_def = i;
string s = level.ToString();
FilterEnv cell_env = getSession().createFilterEnv();
cell_env.setExtent(map_layer.getAreaOfInterest()); //GeoExtent.infinite() );
cell_env.setTerrainNode(getTerrainNode());
cell_env.setTerrainSRS(getTerrainSRS());
foreach (Property prop in level_def.getEnvProperties())
{
cell_env.setProperty(prop);
}
Task task = new CellCompiler(s,
s,
level_def.getFeatureLayer(),
level_def.getFilterGraph(),
level_def.getMinRange(),
level_def.getMaxRange(),
cell_env,
null, null, null);
task_man.queueTask(task);
}
return(level);
}
protected virtual void processCompletedTask(CellCompiler task)
{
if (task.getResult().isOK() && task.getResultNode())
{
if (!lod.valid())
{
lod = new osg.LOD();
}
uint key = uint.Parse(task.getName());
MapLayerLevelOfDetail def = getLodForKey(key, getMapLayer());
if (def != null)
{
lod.addChild(task.getResultNode(), def.getMinRange(), def.getMaxRange());
}
}
}
protected Task createQuadKeyTask(QuadKey key)
{
// construct a filter environment template to use for all tasks:
FilterEnv cell_env = getSession().createFilterEnv();
cell_env.setTerrainNode(getTerrainNode());
cell_env.setTerrainSRS(getTerrainSRS());
string abs_path = createAbsPathFromTemplate("g" + key.toString());
Task task = null;
MapLayerLevelOfDetail def = getDefinition(key.createParentKey(), map_layer);
if (def != null)
{
cell_env.setInputSRS(def.getFeatureLayer().getSRS());
cell_env.setExtent(map_layer.getAreaOfInterest().getSRS().transform(key.getExtent()));
cell_env.setProperty(new Property("compiler.cell_id", key.toString()));
foreach (Property i in def.getEnvProperties())
{
cell_env.setProperty(i);
}
task = new CellCompiler(
key.toString(),
abs_path,
def.getFeatureLayer(),
def.getFilterGraph(),
def.getMinRange(),
def.getMaxRange(),
cell_env,
def.getResourcePackager() ? def.getResourcePackager() : resource_packager.get(),
getArchive(),
def.getUserData());
// osgGIS.info()
// << "Task: Key = " << key.toString() << ", LOD = " << key.getLOD() << ", Extent = " << key.getExtent().toString()
// << " (w=" << key.getExtent().getWidth() << ", h=" << key.getExtent().getHeight() << ")"
// << std.endl;
}
return(task);
}
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);
}
}
}
}
}
}