protected virtual void buildIndex(Profile profile, osg.Group scene_graph)
{
//scene_graph = new osg.Group();
if (lod.valid())
{
scene_graph.addChild(lod.get());
}
}
public CompileSessionImpl(TaskManager _task_man,
Profile _profile,
uint _total_tasks,
osg.Timer_t _start_time)
{
task_man = _task_man;
profile = _profile;
total_tasks = _total_tasks; start_time = _start_time;
//NOP
}
protected void setCenterAndRadius(osg.Node node, GeoExtent cell_extent, SmartReadCallback reader)
{
SpatialReference srs = map_layer.getOutputSRS(getSession(), getTerrainSRS());
// first get the output srs centroid:
GeoPoint centroid = srs.transform(cell_extent.getCentroid());
GeoPoint sw = srs.transform(cell_extent.getSouthwest());
double radius = map_layer.getEncodeCellRadius() ?
(centroid - sw).length() :
-1.0;
if (terrain_node.valid() && terrain_srs != null)
{
GeoPoint clamped;
for (int t = 0; t < 5; t++)
{
clamped = GeomUtils.clampToTerrain(centroid, terrain_node.get(), terrain_srs, reader);
if (!clamped.isValid())
{
// if the clamp failed, it's due to the geocentric intersection bug in which the isect
// fails when coplanar with a tile boundary/skirt. Fudge the centroid and try again.
double fudge = 0.001 * ((double)(1 + (Random.Rand() % 10)));
centroid.X += fudge;
centroid.Y -= fudge;
centroid.Z += fudge * fudge;
}
else
{
break;
}
}
if (!clamped.isValid())
{
SpatialReference geo = srs.getGeographicSRS();
GeoPoint latlon = geo.transform(centroid);
//osgGIS.warn() << "*** UNABLE TO CLAMP CENTROID: ***" << latlon.toString() << std.endl;
}
else
{
centroid = clamped;
}
}
else
{
//osgGIS.warn() << "*** Failed to clamp Center/Radius for cell" << std.endl;
}
if (node is osg.LOD)
{
osg.LOD plod = (osg.LOD)node;
plod.setCenter(centroid);
plod.setRadius(radius);
}
else if (node is osg.ProxyNode)
{
osg.ProxyNode proxy = (osg.ProxyNode)node;
proxy.setCenter(centroid);
proxy.setRadius(radius);
}
}
protected abstract void buildIndex(Profile profile, osg.Group group);
/**
* Sets the reference terrain against which to compile.
*/
//public void setTerrain(
// osg.Node terrain,
// SpatialReference terrain_srs =NULL,
// GeoExtent terrain_extent =GeoExtent.infinite() )
public void setTerrain(osg.Node _terrain,
SpatialReference _terrain_srs,
GeoExtent _terrain_extent)
{
terrain_node = _terrain;
terrain_srs = (SpatialReference)_terrain_srs;
terrain_extent = _terrain_extent;
if (terrain_srs == null)
terrain_srs = MogreGis.Registry.SRSFactory().createSRSfromTerrain(terrain_node.get());
//if ( !terrain_srs.valid() )
// osgGIS.warn() << "[MapLayerCompiler] WARNING: cannot determine SRS of terrain!" << std.endl;
}
/** * Creates a new SRS from data found in an osg::CoordinateSystemNode. * * @param cs_node * Node for which to determine the SRS * @return * A spatial reference. Caller is responsible for deleting * the return object. */ public SpatialReference createGeocentricSRS(osg.CoordinateSystemNode cs_node);
protected void generateNormals(osg.Geometry geom)
{
if (geom != null)
{
osgUtil.SmoothingVisitor smoother;
smoother.smooth(out geom);
}
}
protected void applyOverlayTexturing(osg.Geometry geom, Feature input, FilterEnv env)
{
GeoExtent tex_extent;
if (getRasterOverlayScript() != null)
{
// if there's a raster script for this filter, we're applying textures per-feature:
tex_extent = new GeoExtent(
input.getExtent().getSouthwest().getAbsolute(),
input.getExtent().getNortheast().getAbsolute());
}
else
{
// otherwise prepare the geometry for an overlay texture covering the entire working extent:
tex_extent = env.getExtent();
}
float width = (float)tex_extent.getWidth();
float height = (float)tex_extent.getHeight();
// now visit the verts and calculate texture coordinates for each one.
osg.Vec3Array verts = (osg.Vec3Array)(geom.getVertexArray());
if (verts != null)
{
// if we are dealing with geocentric data, we will need to xform back to a real
// projection in order to determine texture coords:
GeoExtent tex_extent_geo;
if (env.getInputSRS().isGeocentric())
{
tex_extent_geo = new GeoExtent(
tex_extent.getSRS().getGeographicSRS().transform(tex_extent.getSouthwest()),
tex_extent.getSRS().getGeographicSRS().transform(tex_extent.getNortheast()));
}
osg.Vec2Array texcoords = new osg.Vec2Array(verts.size());
for (int j = 0; j < verts.size(); j++)
{
// xform back to raw SRS w.o. ref frame:
GeoPoint vert = new GeoPoint(verts[j], env.getInputSRS());
GeoPoint vert_map = vert.getAbsolute();
float tu, tv;
if (env.getInputSRS().isGeocentric())
{
tex_extent_geo.getSRS().transformInPlace(vert_map);
tu = (vert_map.X - tex_extent_geo.getXMin()) / width;
tv = (vert_map.Y - tex_extent_geo.getYMin()) / height;
}
else
{
tu = (vert_map.X - tex_extent.getXMin()) / width;
tv = (vert_map.Y - tex_extent.getYMin()) / height;
}
(*texcoords)[j].set(tu, tv);
}
geom.setTexCoordArray(0, texcoords);
}
// if we are applying the raster per-feature, do so now.
// TODO: deprecate? will we ever use this versus the BuildNodesFilter overlay? maybe
if (getRasterOverlayScript() != null)
{
ScriptResult r = env.getScriptEngine().run(getRasterOverlayScript(), input, env);
if (r.isValid())
{
RasterResource raster = env.getSession().getResources().getRaster(r.asString());
if (raster != null)
{
Image image = null;
std.stringstream builder;
builder << "rtex_" << input.getOID() << ".jpg"; //TODO: dds with DXT1 compression
osg.StateSet raster_ss = new osg.StateSet();
if (raster.applyToStateSet(raster_ss.get(), tex_extent, getRasterOverlayMaxSize(), out image))
{
image.setFileName(builder.str());
geom.setStateSet(raster_ss.get());
// add this as a skin resource so the compiler can properly localize and deploy it.
env.getResourceCache().addSkin(raster_ss.get());
}
}
}
else
{
env.getReport().error(r.asString());
}
}
}
public void rewriteResourceReferences(osg.Node node)
{
throw new NotImplementedException();
}
public bool packageNode(osg.Node node, string abs_uri)
{
throw new NotImplementedException();
}
static void fixMipmapSettings(osg.StateSet ss)
{
for (uint i = 0; i < ss.getTextureAttributeList().size(); i++)
{
osg.Texture2D tex = (osg.Texture2D)(ss.getTextureAttribute(i, osg.StateAttribute.TEXTURE));
if (tex != null)
{
tex.setFilter(osg.Texture.MIN_FILTER, osg.Texture.LINEAR_MIPMAP_LINEAR);
tex.setFilter(osg.Texture.MAG_FILTER, osg.Texture.LINEAR);
}
}
}
/*** Statics ********************************************************/
static bool getTerrainData(Terrain terrain,
out osg.Node out_terrain_node,
out SpatialReference out_terrain_srs,
out GeoExtent out_terrain_extent)
{
if (terrain != null)
{
if (!string.IsNullOrEmpty(terrain.getURI()))
{
out_terrain_node = osgDB.readNodeFile(terrain.getAbsoluteURI());
}
// first check for an explicity defined SRS:
out_terrain_srs = terrain.getExplicitSRS();
if (out_terrain_srs != null && out_terrain_srs.isGeographic())
{
// and make it geocentric if necessary..
out_terrain_srs = Registry.SRSFactory().createGeocentricSRS(out_terrain_srs.get());
}
if (out_terrain_node != null)
{
// if the SRS wasn't explicit, try to read it from the scene graph:
if (out_terrain_srs == null)
{
out_terrain_srs = Registry.SRSFactory().createSRSfromTerrain(out_terrain_node.get());
}
//osgGIS.notice()
// << "Loaded TERRAIN from \"" << terrain.getAbsoluteURI() << "\", SRS = "
// << (out_terrain_srs != null? out_terrain_srs.getName() : "unknown")
// << std.endl;
}
else if (!string.IsNullOrEmpty(terrain.getURI()))
{
//osgGIS.warn()
// << "Unable to load data for terrain \""
// << terrain.getName() << "\"."
// << std.endl;
return false;
}
}
out_terrain_extent = new GeoExtent(-180, -90, 180, 90,
Registry.instance().getSRSFactory().createWGS84());
return true;
}
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);
}
}
}
}
}
}
