protected virtual void buildIndex(Profile profile, osg.Group scene_graph)
{
//scene_graph = new osg.Group();
if (lod.valid())
{
scene_graph.addChild(lod.get());
}
}
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);
}
}
}
}
}
}
protected virtual AttributedNodeList process(AttributedNodeList input, FilterEnv env)
{
Node result;
if (input.Count > 1)
{
result = new osg.Group();
for (AttributedNodeList.iterator i = input.begin(); i != input.end(); i++)
{
osg.Node node = i.get().getNode();
if (node != null)
{
if (getEmbedAttributes())
{
embedAttributes(node, i.get().getAttributes());
}
result.asGroup().addChild(node);
}
}
}
else if (input.Count == 1)
{
result = input[0].getNode();
if (getEmbedAttributes())
{
embedAttributes(result.get(), input[0].getAttributes());
}
}
else
{
return(new AttributedNodeList());
}
// if there are no drawables or external refs, toss it.
if (!GeomUtils.hasDrawables(result.get()))
{
return(AttributedNodeList());
}
// NEXT create a XFORM if there's a localization matrix in the SRS. This will
// prevent jittering due to loss of precision.
SpatialReference input_srs = env.getInputSRS();
if (env.getExtent().getArea() > 0 && !input_srs.getReferenceFrame().isIdentity())
{
Vector3D centroid = new Vector3D(0, 0, 0);
osg.Matrixd irf = input_srs.getInverseReferenceFrame();
osg.Vec3d centroid_abs = centroid * irf;
osg.MatrixTransform xform = new osg.MatrixTransform(irf);
xform.addChild(result);
result = xform;
if (getApplyClusterCulling() && input_srs.isGeocentric())
{
Vector3D normal = centroid_abs;
normal.normalize();
//osg.BoundingSphere bs = result.computeBound(); // force it
// radius = distance from centroid inside which to disable CC altogether:
//float radius = bs.radius();
//osg.Vec3d control_point = bs.center();
Vector3D control_point = centroid_abs;
GeoPoint env_cen = input_srs.transform(env.getCellExtent().getCentroid());
GeoPoint env_sw = input_srs.transform(env.getCellExtent().getSouthwest());
float radius = (env_cen - env_sw).length();
// dot product: 0 = orthogonal to normal, -1 = equal to normal
float deviation = -radius / input_srs.getEllipsoid().getSemiMinorAxis();
osg.ClusterCullingCallback ccc = new osg.ClusterCullingCallback();
ccc.set(control_point, normal, deviation, radius);
osg.Group cull_group = new osg.Group();
cull_group.setCullCallback(ccc);
cull_group.addChild(xform);
result = cull_group;
//osgGIS.notify(osg.NOTICE) << "CCC: radius = " << radius << ", deviation = " << deviation << std.endl;
//if ( getDrawClusterCullingNormals() == true )
//{
// //DRAW CLUSTER-CULLING NORMALS
// osg.Geode* geode = new osg.Geode();
// osg.Geometry* g = new osg.Geometry();
// osg.Vec3Array* v = new osg.Vec3Array(2);
// (*v)[0] = control_point; (*v)[1] = control_point + (normal*radius);
// g.setVertexArray( v );
// osg.Vec4Array* c = new osg.Vec4Array(1);
// (*c)[0] = osg.Vec4f( 0,1,0,1 );
// g.setColorArray( c );
// g.setColorBinding( osg.Geometry.BIND_OVERALL );
// g.addPrimitiveSet( new osg.DrawArrays( osg.PrimitiveSet.LINES, 0, 2 ) );
// geode.addDrawable( g );
// cull_group.addChild( geode );
//}
}
}
if (getCullBackfaces())
{
result.getOrCreateStateSet().setAttributeAndModes(new osg.CullFace(), osg.StateAttribute.ON);
}
if (getDisableLighting())
{
result.getOrCreateStateSet().setMode(GL_LIGHTING, osg.StateAttribute.OFF);
}
if (getLineWidth() > 0.0f)
{
result.getOrCreateStateSet().setAttribute(new osg.LineWidth(line_width), osg.StateAttribute.ON);
}
if (getPointSize() > 0.0f)
{
osg.Point point = new osg.Point();
point.setSize(point_size);
result.getOrCreateStateSet().setAttribute(point, osg.StateAttribute.ON);
}
if (getAlphaBlending())
{
osg.BlendFunc blend_func = new osg.BlendFunc();
//blend_func.setFunction( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
result.getOrCreateStateSet().setAttributeAndModes(blend_func, osg.StateAttribute.ON);
result.getOrCreateStateSet().setRenderingHint(osg.StateSet.TRANSPARENT_BIN);
}
if (getRasterOverlayScript())
{
ScriptResult r = env.getScriptEngine().run(getRasterOverlayScript(), env);
if (r.isValid())
{
RasterResource *raster = env.getSession().getResources().getRaster(r.asString());
if (raster)
{
osg.Image *image = NULL;
std.stringstream builder;
string cell_id = env.getProperties().getValue("compiler.cell_id", "");
if (cell_id.length() > 0)
{
builder << "r" << cell_id << ".jpg";
}
else
{
double x = env.getExtent().getCentroid().x();
double y = env.getExtent().getCentroid().y();
builder << std.setprecision(10) << "r" << x << "x" << y << ".jpg";
}
if (raster.applyToStateSet(result.getOrCreateStateSet(), env.getExtent(), getRasterOverlayMaxSize(), &image))
{
// Add this as a skin resource so the compiler can properly localize and deploy it.
image.setFileName(builder.str());
env.getResourceCache().addSkin(result.getOrCreateStateSet());
}
}
}
else
{
env.getReport().error(r.asString());
}
}
if (getOptimize())
{
//osgGIS.notice() << "[BuildNodes] Optimizing..." << std.endl;
osgUtil.Optimizer opt;
int opt_mask =
osgUtil.Optimizer.DEFAULT_OPTIMIZATIONS |
osgUtil.Optimizer.MERGE_GEODES |
osgUtil.Optimizer.TRISTRIP_GEOMETRY |
osgUtil.Optimizer.SPATIALIZE_GROUPS;
// disable texture atlases, since they mess with our shared skin resources and
// don't work correctly during multi-threaded building
opt_mask &= ~osgUtil.Optimizer.TEXTURE_ATLAS_BUILDER;
// I've seen this crash the app when dealing with certain ProxyNodes.
// TODO: investigate this later.
opt_mask &= ~osgUtil.Optimizer.REMOVE_REDUNDANT_NODES;
// integrate the optimizer hints:
opt_mask |= env.getOptimizerHints().getIncludedOptions();
opt_mask &= ~(env.getOptimizerHints().getExcludedOptions());
opt.optimize(result.get(), opt_mask);
GeometryCleaner cleaner;
cleaner.clean(result.get());
}
AttributedNodeList output;
output.push_back(new AttributedNode(result.get()));
return(output);
}
protected virtual AttributedNodeList process(AttributedNodeList input, FilterEnv env)
{
Node result;
if ( input.Count > 1 )
{
result = new osg.Group();
for( AttributedNodeList.iterator i = input.begin(); i != input.end(); i++ )
{
osg.Node node = i.get().getNode();
if ( node != null)
{
if ( getEmbedAttributes() )
embedAttributes( node, i.get().getAttributes() );
result.asGroup().addChild( node );
}
}
}
else if ( input.Count == 1 )
{
result = input[0].getNode();
if ( getEmbedAttributes() )
embedAttributes( result.get(), input[0].getAttributes() );
}
else
{
return new AttributedNodeList();
}
// if there are no drawables or external refs, toss it.
if ( !GeomUtils.hasDrawables( result.get() ) )
{
return AttributedNodeList();
}
// NEXT create a XFORM if there's a localization matrix in the SRS. This will
// prevent jittering due to loss of precision.
SpatialReference input_srs = env.getInputSRS();
if ( env.getExtent().getArea() > 0 && !input_srs.getReferenceFrame().isIdentity() )
{
Vector3D centroid = new Vector3D( 0, 0, 0 );
osg.Matrixd irf = input_srs.getInverseReferenceFrame();
osg.Vec3d centroid_abs = centroid * irf;
osg.MatrixTransform xform = new osg.MatrixTransform( irf );
xform.addChild( result);
result = xform;
if ( getApplyClusterCulling() && input_srs.isGeocentric() )
{
Vector3D normal = centroid_abs;
normal.normalize();
//osg.BoundingSphere bs = result.computeBound(); // force it
// radius = distance from centroid inside which to disable CC altogether:
//float radius = bs.radius();
//osg.Vec3d control_point = bs.center();
Vector3D control_point = centroid_abs;
GeoPoint env_cen = input_srs.transform( env.getCellExtent().getCentroid() );
GeoPoint env_sw = input_srs.transform( env.getCellExtent().getSouthwest() );
float radius = (env_cen-env_sw).length();
// dot product: 0 = orthogonal to normal, -1 = equal to normal
float deviation = -radius/input_srs.getEllipsoid().getSemiMinorAxis();
osg.ClusterCullingCallback ccc = new osg.ClusterCullingCallback();
ccc.set( control_point, normal, deviation, radius );
osg.Group cull_group = new osg.Group();
cull_group.setCullCallback( ccc );
cull_group.addChild( xform );
result = cull_group;
//osgGIS.notify(osg.NOTICE) << "CCC: radius = " << radius << ", deviation = " << deviation << std.endl;
//if ( getDrawClusterCullingNormals() == true )
//{
// //DRAW CLUSTER-CULLING NORMALS
// osg.Geode* geode = new osg.Geode();
// osg.Geometry* g = new osg.Geometry();
// osg.Vec3Array* v = new osg.Vec3Array(2);
// (*v)[0] = control_point; (*v)[1] = control_point + (normal*radius);
// g.setVertexArray( v );
// osg.Vec4Array* c = new osg.Vec4Array(1);
// (*c)[0] = osg.Vec4f( 0,1,0,1 );
// g.setColorArray( c );
// g.setColorBinding( osg.Geometry.BIND_OVERALL );
// g.addPrimitiveSet( new osg.DrawArrays( osg.PrimitiveSet.LINES, 0, 2 ) );
// geode.addDrawable( g );
// cull_group.addChild( geode );
//}
}
}
if ( getCullBackfaces() )
{
result.getOrCreateStateSet().setAttributeAndModes( new osg.CullFace(), osg.StateAttribute.ON );
}
if ( getDisableLighting() )
{
result.getOrCreateStateSet().setMode( GL_LIGHTING, osg.StateAttribute.OFF );
}
if ( getLineWidth() > 0.0f )
{
result.getOrCreateStateSet().setAttribute( new osg.LineWidth( line_width ), osg.StateAttribute.ON );
}
if ( getPointSize() > 0.0f )
{
osg.Point point = new osg.Point();
point.setSize( point_size );
result.getOrCreateStateSet().setAttribute( point, osg.StateAttribute.ON );
}
if ( getAlphaBlending() )
{
osg.BlendFunc blend_func = new osg.BlendFunc();
//blend_func.setFunction( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
result.getOrCreateStateSet().setAttributeAndModes( blend_func, osg.StateAttribute.ON );
result.getOrCreateStateSet().setRenderingHint( osg.StateSet.TRANSPARENT_BIN );
}
if ( getRasterOverlayScript() )
{
ScriptResult r = env.getScriptEngine().run( getRasterOverlayScript(), env );
if ( r.isValid() )
{
RasterResource* raster = env.getSession().getResources().getRaster( r.asString() );
if ( raster )
{
osg.Image* image = NULL;
std.stringstream builder;
string cell_id = env.getProperties().getValue( "compiler.cell_id", "" );
if ( cell_id.length() > 0 )
{
builder << "r" << cell_id << ".jpg";
}
else
{
double x = env.getExtent().getCentroid().x();
double y = env.getExtent().getCentroid().y();
builder << std.setprecision(10) << "r" << x << "x" << y << ".jpg";
}
if ( raster.applyToStateSet( result.getOrCreateStateSet(), env.getExtent(), getRasterOverlayMaxSize(), &image ) )
{
// Add this as a skin resource so the compiler can properly localize and deploy it.
image.setFileName( builder.str() );
env.getResourceCache().addSkin( result.getOrCreateStateSet() );
}
}
}
else
{
env.getReport().error( r.asString() );
}
}
if ( getOptimize() )
{
//osgGIS.notice() << "[BuildNodes] Optimizing..." << std.endl;
osgUtil.Optimizer opt;
int opt_mask =
osgUtil.Optimizer.DEFAULT_OPTIMIZATIONS |
osgUtil.Optimizer.MERGE_GEODES |
osgUtil.Optimizer.TRISTRIP_GEOMETRY |
osgUtil.Optimizer.SPATIALIZE_GROUPS;
// disable texture atlases, since they mess with our shared skin resources and
// don't work correctly during multi-threaded building
opt_mask &= ~osgUtil.Optimizer.TEXTURE_ATLAS_BUILDER;
// I've seen this crash the app when dealing with certain ProxyNodes.
// TODO: investigate this later.
opt_mask &= ~osgUtil.Optimizer.REMOVE_REDUNDANT_NODES;
// integrate the optimizer hints:
opt_mask |= env.getOptimizerHints().getIncludedOptions();
opt_mask &= ~( env.getOptimizerHints().getExcludedOptions() );
opt.optimize( result.get(), opt_mask );
GeometryCleaner cleaner;
cleaner.clean( result.get() );
}
AttributedNodeList output;
output.push_back( new AttributedNode( result.get() ) );
return output;
}
/**
* Runs the graph to generate a scene graph.
*
* Executes the graph by passing features to the first filter in the
* chain. That filter will process the data, pass the results along to
* the next filter, and so on until completion.
*
* @param cursor
* Source cursor for features to process
* @param env
* Contextual compilation environment
* @param output
* Group node that, upon success, contains resulting nodes of compiled scene
* as its children
* @return
* A structure describing the result of the compilation.
*/
public FilterGraphResult computeNodes(FeatureCursor cursor, FilterEnv env, osg.Group output)
{
FilterStateResult state_result;
output = null;
NodeFilterState output_state;
// first build a new state chain corresponding to our filter prototype chain.
FilterState first = null;
foreach (Filter i in filter_prototypes)
{
FilterState next_state = i.newState();
if (first == null)
{
first = next_state;
}
else
{
first.appendState(next_state);
}
if (next_state is NodeFilterState)
{
output_state = (NodeFilterState)next_state;
}
}
// now traverse the states.
if (first != null)
{
int count = 0;
osg.Timer_t start = osg.Timer.instance().tick();
env.setOutputSRS(env.getInputSRS());
if (first is FeatureFilterState)
{
FeatureFilterState state = (FeatureFilterState)first;
while (state_result.isOK() && cursor.hasNext())
{
state.push(wind(cursor.next()));
state_result = state.traverse(env);
count++;
}
if (state_result.isOK())
{
state_result = state.signalCheckpoint();
}
}
else if (first is FragmentFilterState)
{
FragmentFilterState state = (FragmentFilterState)first;
while (state_result.isOK() && cursor.hasNext())
{
state.push(wind(cursor.next()));
state_result = state.traverse(env);
count++;
}
if (state_result.isOK())
{
state_result = state.signalCheckpoint();
}
}
else if (first is CollectionFilterState)
{
CollectionFilterState state = (CollectionFilterState)first;
while (state_result.isOK() && cursor.hasNext())
{
state.push(wind(cursor.next()));
state_result = state.traverse(env);
count++;
}
if (state_result.isOK())
{
state_result = state.signalCheckpoint();
}
}
osg.Timer_t end = osg.Timer.instance().tick();
double dur = osg.Timer.instance().delta_s(start, end);
//osgGIS.notify( osg.ALWAYS ) << std.endl << "Time = " << dur << " s; Per Feature Avg = " << (dur/(double)count) << " s" << std.endl;
}
else
{
state_result.set(FilterStateResult.Status.STATUS_NODATA);
}
if (output_state != null && state_result.hasData())
{
output = new osg.Group();
foreach (AttributedNode i in output_state.getOutput())
{
output.addChild(i.getNode());
}
}
if (state_result.isOK())
{
return(FilterGraphResult.ok(output_state.getLastKnownFilterEnv()));
}
else
{
return(FilterGraphResult.error("Filter graph failed to compute any nodes"));
}
}