示例#1
0
void 
KML_Placemark::build( xml_node<>* node, KMLContext& cx )
{
	Style masterStyle;

	std::string styleUrl = getValue(node, "styleurl");

	if (!styleUrl.empty())
	{	// process a "stylesheet" style
		const Style* ref_style = cx._sheet->getStyle( styleUrl, false );
		if (ref_style)
		{
			masterStyle = masterStyle.combineWith(*ref_style);
		}
	}

	xml_node<>* style = node->first_node("style", 0, false);
	if ( style )
	{	// process an "inline" style
		KML_Style kmlStyle;
		kmlStyle.scan(style, cx);
		masterStyle = masterStyle.combineWith(cx._activeStyle);
	}

    // parse the geometry. the placemark must have geometry to be valid. The 
    // geometry parse may optionally specify an altitude mode as well.
    KML_Geometry geometry;
    geometry.build(node, cx, masterStyle);

    Geometry* allGeom = geometry._geom.get();
    if ( allGeom )
    {
        GeometryIterator giter( allGeom, false );
        while( giter.hasMore() )
        {
            Geometry* geom = giter.next();
            Style style = masterStyle;

            AltitudeSymbol* alt = style.get<AltitudeSymbol>();
            
            if ( geom && geom->getTotalPointCount() > 0 )
            {
                // resolve the proper altitude mode for the anchor point
                AltitudeMode altMode = ALTMODE_RELATIVE;
                if (alt && 
                    !alt->clamping().isSetTo( alt->CLAMP_TO_TERRAIN ) &&
                    !alt->clamping().isSetTo( alt->CLAMP_RELATIVE_TO_TERRAIN ) )
                {
                    altMode = ALTMODE_ABSOLUTE;
                }

                GeoPoint position(cx._srs.get(), geom->getBounds().center(), altMode);

                bool isPoly = geom->getComponentType() == Geometry::TYPE_POLYGON;
                bool isPoint = geom->getComponentType() == Geometry::TYPE_POINTSET;

                // check for symbols.
                ModelSymbol*    model = style.get<ModelSymbol>();
                IconSymbol*     icon  = style.get<IconSymbol>();
                TextSymbol*     text  = style.get<TextSymbol>();

                // the annotation name:
                std::string name = getValue(node, "name");

                AnnotationNode* featureNode = 0L;
                AnnotationNode* iconNode    = 0L;
                AnnotationNode* modelNode   = 0L;

                // one coordinate? It's a place marker or a label.
                if ( (model || icon || text) && geom->getTotalPointCount() == 1 )
                {
                    // load up the default icon if there we don't have one.
                    if ( !model && !icon )
                    {
                        icon = cx._options->defaultIconSymbol().get();
                        if ( icon )
                            style.add( icon );
                    }

                    // if there's a model, render that - models do NOT get labels.
                    if ( model )
                    {
                        ModelNode* node = new ModelNode( cx._mapNode, style, cx._dbOptions );
                        node->setPosition( position );

                        // model scale:
                        if ( cx._options->modelScale() != 1.0f )
                        {
                            float s = *cx._options->modelScale();
                            node->setScale( osg::Vec3f(s,s,s) );
                        }

                        // model local tangent plane rotation:
                        if ( !cx._options->modelRotation()->zeroRotation() )
                        {
                            node->setLocalRotation( *cx._options->modelRotation() );
                        }

                        modelNode = node;
                    }

                    // is there a label?
                    else if ( !name.empty() )
                    {
                        if ( !text && cx._options->defaultTextSymbol().valid() )
                        {
                            text = cx._options->defaultTextSymbol().get();
                            style.addSymbol( text );

                        }
                        else
                        {
                            text = style.getOrCreate<TextSymbol>();
                            text->encoding() = TextSymbol::ENCODING_UTF8;
                        }
                        text->content()->setLiteral( name );
                    }

                    // is there an icon?
                    if ( icon )
                    {
                        iconNode = new PlaceNode( cx._mapNode, position, style, cx._dbOptions );
                    }

                    else if ( !model && text && !name.empty() )
                    {
                        // note: models do not get labels.
                        iconNode = new LabelNode( cx._mapNode, position, style );
                    }
                }

                // multiple coords? feature:
                if ( geom->getTotalPointCount() > 1 )
                {
                    ExtrusionSymbol* extruded = style.get<ExtrusionSymbol>();

                    // Remove symbols that we have already processed so the geometry
                    // compiler doesn't get confused.
                    if ( model )
                        style.removeSymbol( model );
                    if ( icon )
                        style.removeSymbol( icon );
                    if ( text )
                        style.removeSymbol( text );

                    Feature* feature = new Feature(geom, cx._srs.get(), style);
                    featureNode = new FeatureNode( cx._mapNode, feature );
                }


                // assemble the results:
                if ( (iconNode || modelNode) && featureNode )
                {
                    osg::Group* group = new osg::Group();
                    group->addChild( featureNode );
                    if ( iconNode )
                        group->addChild( iconNode );
                    if ( modelNode )
                        group->addChild( modelNode );

                    cx._groupStack.top()->addChild( group );

                    if ( iconNode && cx._options->declutter() == true )
                    {
                        Decluttering::setEnabled( iconNode->getOrCreateStateSet(), true );
                    }

                    if ( iconNode )
                        KML_Feature::build( node, cx, iconNode );
                    if ( modelNode )
                        KML_Feature::build( node, cx, modelNode );
                    if ( featureNode )
                        KML_Feature::build( node, cx, featureNode );
                }

                else
                {
                    if ( iconNode )
                    {
                        if ( cx._options->iconAndLabelGroup().valid() )
                        {
                            cx._options->iconAndLabelGroup()->addChild( iconNode );
                        }
                        else
                        {
                            cx._groupStack.top()->addChild( iconNode );
                            if ( cx._options->declutter() == true )
                            {
                                Decluttering::setEnabled( iconNode->getOrCreateStateSet(), true );
                            }
                        }
                        KML_Feature::build( node, cx, iconNode );
                    }
                    if ( modelNode )
                    {
                        cx._groupStack.top()->addChild( modelNode );
                        KML_Feature::build( node, cx, modelNode );
                    }
                    if ( featureNode )
                    {
                        cx._groupStack.top()->addChild( featureNode );
                        KML_Feature::build( node, cx, featureNode );
                    }
                }
            }
        }
    }
}
示例#2
0
    /**
     * Creates a complete set of positioned label nodes from a feature list.
     */
    osg::Node* createNode(
        const FeatureList&   input,
        const Style&         style,
        FilterContext&       context )
    {
        if ( style.get<TextSymbol>() == 0L && style.get<IconSymbol>() == 0L )
            return 0L;

        // copy the style so we can (potentially) modify the text symbol.
        Style styleCopy = style;
        TextSymbol* text = styleCopy.get<TextSymbol>();
        IconSymbol* icon = styleCopy.get<IconSymbol>();

        osg::Group* group = new osg::Group();
        
        StringExpression  textContentExpr ( text ? *text->content()  : StringExpression() );
        NumericExpression textPriorityExpr( text ? *text->priority() : NumericExpression() );
        NumericExpression textSizeExpr    ( text ? *text->size()     : NumericExpression() );
        StringExpression  iconUrlExpr     ( icon ? *icon->url()      : StringExpression() );
        NumericExpression iconScaleExpr   ( icon ? *icon->scale()    : NumericExpression() );
        NumericExpression iconHeadingExpr ( icon ? *icon->heading()  : NumericExpression() );

        for( FeatureList::const_iterator i = input.begin(); i != input.end(); ++i )
        {
            Feature* feature = i->get();
            if ( !feature )
                continue;
            
            // run a symbol script if present.
            if ( text && text->script().isSet() )
            {
                StringExpression temp( text->script().get() );
                feature->eval( temp, &context );
            }
            
            // run a symbol script if present.
            if ( icon && icon->script().isSet() )
            {
                StringExpression temp( icon->script().get() );
                feature->eval( temp, &context );
            }

            const Geometry* geom = feature->getGeometry();
            if ( !geom )
                continue;

            Style tempStyle = styleCopy;

            // evaluate expressions into literals.
            // TODO: Later we could replace this with a generate "expression evaluator" type
            // that we could pass to PlaceNode in the DB options. -gw

            if ( text )
            {
                if ( text->content().isSet() )
                    tempStyle.get<TextSymbol>()->content()->setLiteral( feature->eval( textContentExpr, &context ) );

                if ( text->size().isSet() )
                    tempStyle.get<TextSymbol>()->size()->setLiteral( feature->eval(textSizeExpr, &context) );
            }

            if ( icon )
            {
                if ( icon->url().isSet() )
                    tempStyle.get<IconSymbol>()->url()->setLiteral( feature->eval(iconUrlExpr, &context) );

                if ( icon->scale().isSet() )
                    tempStyle.get<IconSymbol>()->scale()->setLiteral( feature->eval(iconScaleExpr, &context) );

                if ( icon->heading().isSet() )
                    tempStyle.get<IconSymbol>()->heading()->setLiteral( feature->eval(iconHeadingExpr, &context) );
            }
            
            osg::Node* node = makePlaceNode(
                context,
                feature,
                tempStyle,
                textPriorityExpr);

            if ( node )
            {
                if ( context.featureIndex() )
                {
                    context.featureIndex()->tagNode(node, feature);
                }

                group->addChild( node );
            }
        }

        // Note to self: need to change this to support picking later. -gw
        //VirtualProgram* vp = VirtualProgram::getOrCreate(group->getOrCreateStateSet());
        //vp->setInheritShaders( false );

        return group;
    }
示例#3
0
bool
SLDReader::readStyleFromCSSParams( const Config& conf, Style& sc )
{
    sc.setName( conf.key() );

    LineSymbol*      line      = 0L;
    PolygonSymbol*   polygon   = 0L;
    PointSymbol*     point     = 0L;
    TextSymbol*      text      = 0L;
    ExtrusionSymbol* extrusion = 0L;
    MarkerSymbol*    marker     = 0L;
    AltitudeSymbol*  altitude  = 0L;

    for(Properties::const_iterator p = conf.attrs().begin(); p != conf.attrs().end(); p++ )
    {
        if ( p->first == CSS_STROKE )
        {
            if (!line) line = sc.getOrCreateSymbol<LineSymbol>();
            line->stroke()->color() = htmlColorToVec4f( p->second );
        }
        else if ( p->first == CSS_STROKE_OPACITY )
        {
            if (!line) line = sc.getOrCreateSymbol<LineSymbol>();
            line->stroke()->color().a() = as<float>( p->second, 1.0f );
        }
        else if ( p->first == CSS_STROKE_WIDTH )
        {
            if (!line) line = sc.getOrCreateSymbol<LineSymbol>();
            line->stroke()->width() = as<float>( p->second, 1.0f );
        }
        else if ( p->first == CSS_STROKE_LINECAP )
        {
            if (!line) line = sc.getOrCreateSymbol<LineSymbol>();
            parseLineCap( p->second, line->stroke()->lineCap() );
        }
        else if ( p->first == CSS_FILL )
        {
            if (!polygon) polygon = sc.getOrCreateSymbol<PolygonSymbol>();
            polygon->fill()->color() = htmlColorToVec4f( p->second );

            if ( !point ) point = sc.getOrCreateSymbol<PointSymbol>();
            point->fill()->color() = htmlColorToVec4f( p->second );

            if ( !text ) text = new TextSymbol();
            text->fill()->color() = htmlColorToVec4f( p->second );
        }
        else if ( p->first == CSS_FILL_OPACITY )
        {
            if (!polygon) polygon = sc.getOrCreateSymbol<PolygonSymbol>();
            polygon->fill()->color().a() = as<float>( p->second, 1.0f );

            if (!polygon) polygon = sc.getOrCreateSymbol<PolygonSymbol>();
            point->fill()->color().a() = as<float>( p->second, 1.0f );

            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            text->fill()->color().a() = as<float>( p->second, 1.0f );
        }
        else if (p->first == CSS_POINT_SIZE)
        {
            if ( !point ) point = sc.getOrCreateSymbol<PointSymbol>();
            point->size() = as<float>(p->second, 1.0f);
        }
        else if (p->first == CSS_TEXT_SIZE)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            text->size() = as<float>(p->second, 32.0f);
        }
        else if (p->first == CSS_TEXT_FONT)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            text->font() = p->second;
        }
        else if (p->first == CSS_TEXT_HALO)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            text->halo()->color() = htmlColorToVec4f( p->second );
        }
        //else if (p->first == CSS_TEXT_ATTRIBUTE)
        //{
        //    if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
        //    text->attribute() = p->second;
        //}
        else if (p->first == CSS_TEXT_ROTATE_TO_SCREEN)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            if (p->second == "true") text->rotateToScreen() = true;
            else if (p->second == "false") text->rotateToScreen() = false;
        }
        else if (p->first == CSS_TEXT_SIZE_MODE)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            if (p->second == "screen") text->sizeMode() = TextSymbol::SIZEMODE_SCREEN;
            else if (p->second == "object") text->sizeMode() = TextSymbol::SIZEMODE_OBJECT;
        }
        else if (p->first == CSS_TEXT_REMOVE_DUPLICATE_LABELS)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            if (p->second == "true") text->removeDuplicateLabels() = true;
            else if (p->second == "false") text->removeDuplicateLabels() = false;
        } 
        else if (p->first == CSS_TEXT_LINE_ORIENTATION)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            if (p->second == "parallel") text->lineOrientation() = TextSymbol::LINEORIENTATION_PARALLEL;
            else if (p->second == "horizontal") text->lineOrientation() = TextSymbol::LINEORIENTATION_HORIZONTAL;
            else if (p->second == "perpendicular") text->lineOrientation() = TextSymbol::LINEORIENTATION_PERPENDICULAR;
        }
        else if (p->first == CSS_TEXT_LINE_PLACEMENT)
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            if (p->second == "centroid") text->linePlacement() = TextSymbol::LINEPLACEMENT_CENTROID;
            else if (p->second == "along-line") text->linePlacement() = TextSymbol::LINEPLACEMENT_ALONG_LINE;
        }
        else if (p->first == "text-content")
        {
            if (!text) text = sc.getOrCreate<TextSymbol>();
            text->content() = StringExpression( p->second );
        }
        else if (p->first == "text-priority")
        {
            if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
            text->priority() = NumericExpression( p->second );
        }
        else if (p->first == "text-provider")
        {
            if (!text) text = sc.getOrCreate<TextSymbol>();
            text->provider() = p->second;
        }

        //else if (p->first == CSS_TEXT_CONTENT)
        //{
        //    if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
        //    text->content() = p->second;
        //}
        //else if (p->first == CSS_TEXT_CONTENT_ATTRIBUTE_DELIMITER)
        //{
        //    if (!text) text = sc.getOrCreateSymbol<TextSymbol>();
        //    text->contentAttributeDelimiter() = p->second;
        //}

        else if (p->first == "marker")
        {
            if (!marker) marker = sc.getOrCreateSymbol<MarkerSymbol>();
            marker->url() = p->second;
        }
        else if (p->first == "marker-placement")
        {
            if (!marker) marker = sc.getOrCreateSymbol<MarkerSymbol>();
            if      (p->second == "centroid") marker->placement() = MarkerSymbol::PLACEMENT_CENTROID;
            else if (p->second == "interval") marker->placement() = MarkerSymbol::PLACEMENT_INTERVAL;
            else if (p->second == "random"  ) marker->placement() = MarkerSymbol::PLACEMENT_RANDOM;
        }
        else if (p->first == "marker-density")
        {
            if (!marker) marker = sc.getOrCreateSymbol<MarkerSymbol>();
            marker->density() = as<float>(p->second, 1.0f);
        }
        else if (p->first == "marker-random-seed")
        {
            if (!marker) marker = sc.getOrCreateSymbol<MarkerSymbol>();
            marker->randomSeed() = as<unsigned>(p->second, 0);
        }
        else if (p->first == "marker-scale")
        {
            if (!marker) marker = sc.getOrCreateSymbol<MarkerSymbol>();
            marker->scale() = stringToVec3f(p->second, osg::Vec3f(1,1,1));
        }

        else if (p->first == "extrusion-height")
        {
            if (!extrusion) extrusion = sc.getOrCreateSymbol<ExtrusionSymbol>();
            extrusion->heightExpression() = NumericExpression(p->second);
        }
        else if (p->first == "extrusion-flatten")
        {
            if (!extrusion) extrusion = sc.getOrCreateSymbol<ExtrusionSymbol>();
            extrusion->flatten() = as<bool>(p->second, true);
        }
                
        else if (p->first == "altitude-clamping")
        {
            if (!altitude) altitude = sc.getOrCreateSymbol<AltitudeSymbol>();
            if      (p->second == "none"    ) altitude->clamping() = AltitudeSymbol::CLAMP_NONE;
            else if (p->second == "terrain" ) altitude->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
            else if (p->second == "relative") altitude->clamping() = AltitudeSymbol::CLAMP_RELATIVE_TO_TERRAIN;
        }
        else if (p->first == "altitude-offset")
        {
            if (!altitude) altitude = sc.getOrCreateSymbol<AltitudeSymbol>();
            altitude->verticalOffset() = as<float>( p->second, 0.0f );
        }
    }

#if 0
    if (line)
        sc.addSymbol(line);
    if (polygon)
        sc.addSymbol(polygon);
    if (point)
        sc.addSymbol(point);
    if (text)
        sc.addSymbol(text);
    if (extrusion)
        sc.addSymbol(extrusion);
    if (marker)
        sc.addSymbol(marker);
    if (altitude)
        sc.addSymbol(altitude);
#endif

    return true;
}
示例#4
0
void 
KML_Placemark::build( xml_node<>* node, KMLContext& cx )
{
	Style masterStyle;

	std::string styleUrl = getValue(node, "styleurl");

	if (!styleUrl.empty())
	{	// process a "stylesheet" style
		const Style* ref_style = cx._sheet->getStyle( styleUrl, false );
		if (ref_style)
		{
			masterStyle = masterStyle.combineWith(*ref_style);
		}
	}

	xml_node<>* style = node->first_node("style", 0, false);
	if ( style )
	{	// process an "inline" style
		KML_Style kmlStyle;
		kmlStyle.scan(style, cx);
		masterStyle = masterStyle.combineWith(cx._activeStyle);
	}

    // parse the geometry. the placemark must have geometry to be valid. The 
    // geometry parse may optionally specify an altitude mode as well.
    KML_Geometry geometry;
    geometry.build(node, cx, masterStyle);

    Geometry* allGeom = geometry._geom.get();
    if ( allGeom )
    {
        GeometryIterator giter( allGeom, false );
        while( giter.hasMore() )
        {
            Geometry* geom = giter.next();
            Style style = masterStyle;

            AltitudeSymbol* alt = style.get<AltitudeSymbol>();
            
            if ( geom && geom->getTotalPointCount() > 0 )
            {
                // resolve the proper altitude mode for the anchor point
                AltitudeMode altMode = ALTMODE_RELATIVE;
                if (alt && 
                    !alt->clamping().isSetTo( alt->CLAMP_TO_TERRAIN ) &&
                    !alt->clamping().isSetTo( alt->CLAMP_RELATIVE_TO_TERRAIN ) )
                {
                    altMode = ALTMODE_ABSOLUTE;
                }

                GeoPoint position(cx._srs.get(), geom->getBounds().center(), altMode);

                // check for symbols.
                ModelSymbol* model = style.get<ModelSymbol>();
                IconSymbol*  icon  = style.get<IconSymbol>();
                TextSymbol*  text  = style.get<TextSymbol>();

                // for a single point placemark, apply the default icon and text symbols
                // if none are specified in the KML.
                if (geom->getTotalPointCount() == 1)
                {
                    if (!model && !icon && cx._options->defaultIconSymbol().valid())
                    {
                        icon = cx._options->defaultIconSymbol().get();
                        style.add(icon);
                    }

                    if (!text && cx._options->defaultTextSymbol().valid())
                    {
                        text = cx._options->defaultTextSymbol().get();
                        style.add(text);
                    }
                }

                // the annotation name:
                std::string name = getValue(node, "name");

                if (!name.empty())
                {
                    OE_INFO << LC << "Placemark: " << name << std::endl;
                }

                AnnotationNode* featureNode = 0L;
                AnnotationNode* iconNode    = 0L;
                AnnotationNode* modelNode   = 0L;

                // one coordinate? It's a place marker or a label.
                if ( (model || icon || text) && geom->getTotalPointCount() == 1 )
                {
                    // if there's a model, render that - models do NOT get labels.
                    if ( model )
                    {
                        ModelNode* node = new ModelNode( cx._mapNode, style, cx._dbOptions.get() );
                        node->setPosition( position );

                        // model scale:
                        if ( cx._options->modelScale() != 1.0f )
                        {
                            float s = *cx._options->modelScale();
                            node->getPositionAttitudeTransform()->setScale(osg::Vec3d(s,s,s));
                        }

                        // model local tangent plane rotation:
                        if ( !cx._options->modelRotation()->zeroRotation() )
                        {
                            node->getPositionAttitudeTransform()->setAttitude( *cx._options->modelRotation() );
                        }

                        modelNode = node;
                    }

                    // is there a label?
                    else if ( !name.empty() )
                    {
                        if ( !text )
                        {
                            text = style.getOrCreate<TextSymbol>();
                            text->encoding() = TextSymbol::ENCODING_UTF8;
                        }
                        text->content()->setLiteral( name );
                    }

                    // is there an icon?
                    if ( icon )
                    {
                        PlaceNode* placeNode = new PlaceNode( position );
                        placeNode->setStyle(style, cx._dbOptions.get());
                        iconNode = placeNode;
                    }

                    else if ( !model && text && !name.empty() )
                    {
                        // note: models do not get labels.
                        iconNode = new LabelNode();
                        iconNode->setStyle(style);
                    }
                }

                // multiple coords? feature:
                if ( geom->getTotalPointCount() > 1 )
                {
                    // Remove symbols that we have already processed so the geometry
                    // compiler doesn't get confused.
                    if ( model )
                        style.removeSymbol( model );
                    if ( icon )
                        style.removeSymbol( icon );
                    if ( text )
                        style.removeSymbol( text );

                    Feature* feature = new Feature(geom, cx._srs.get(), style);
                    featureNode = new FeatureNode(feature );
                    featureNode->setMapNode( cx._mapNode );
                }

                if ( iconNode )
                {
                    Registry::objectIndex()->tagNode( iconNode, iconNode );
                }

                if ( modelNode )
                {
                    Registry::objectIndex()->tagNode( modelNode, modelNode );
                }

                if ( featureNode )
                {
                    Registry::objectIndex()->tagNode( featureNode, featureNode );
                }


                // assemble the results:
                if ( (iconNode || modelNode) && featureNode )
                {
                    osg::Group* group = new osg::Group();
                    group->addChild( featureNode );
                    if ( iconNode )
                        group->addChild( iconNode );
                    if ( modelNode )
                        group->addChild( modelNode );

                    cx._groupStack.top()->addChild( group );

                    if ( iconNode )
                        KML_Feature::build( node, cx, iconNode );
                    if ( modelNode )
                        KML_Feature::build( node, cx, modelNode );
                    if ( featureNode )
                        KML_Feature::build( node, cx, featureNode );
                }

                else
                {
                    if ( iconNode )
                    {
                        if ( cx._options->iconAndLabelGroup().valid() )
                        {
                            cx._options->iconAndLabelGroup()->addChild( iconNode );
                        }
                        else
                        {
                            cx._groupStack.top()->addChild( iconNode );
                        }
                        KML_Feature::build( node, cx, iconNode );
                    }
                    if ( modelNode )
                    {
                        cx._groupStack.top()->addChild( modelNode );
                        KML_Feature::build( node, cx, modelNode );
                    }
                    if ( featureNode )
                    {
                        osg::Node* child = featureNode;

                        // If this feature node is map-clamped, we most likely need a depth-offset
                        // shader to prevent z-fighting with the terrain.
                        if (alt && alt->clamping() == alt->CLAMP_TO_TERRAIN && alt->technique() == alt->TECHNIQUE_MAP)
                        {
                            DepthOffsetGroup* g = new DepthOffsetGroup();
                            g->addChild( featureNode );
                            child = g;
                        }
                
                        cx._groupStack.top()->addChild( child );
                        KML_Feature::build( node, cx, featureNode );
                    }
                }
            }
        }
    }
}
示例#5
0
//
// NOTE: run this sample from the repo/tests directory.
//
int main(int argc, char** argv)
{
    osg::ArgumentParser arguments(&argc,argv);

    if ( arguments.read("--help") )
        return usage( argv[0] );

    bool useRaster  = arguments.read("--rasterize");
    bool useOverlay = arguments.read("--overlay");
    bool useStencil = arguments.read("--stencil");
    bool useMem     = arguments.read("--mem");
    bool useLabels  = arguments.read("--labels");

    if ( useStencil )
        osg::DisplaySettings::instance()->setMinimumNumStencilBits( 8 );

    osgViewer::Viewer viewer(arguments);

    // Start by creating the map:
    Map* map = new Map();

    // Start with a basemap imagery layer; we'll be using the GDAL driver
    // to load a local GeoTIFF file:
    GDALOptions basemapOpt;
    basemapOpt.url() = "../data/world.tif";
    map->addImageLayer( new ImageLayer( ImageLayerOptions("basemap", basemapOpt) ) );

    // Next we add a feature layer. 
    OGRFeatureOptions featureOptions;
    if ( !useMem )
    {
        // Configures the feature driver to load the vectors from a shapefile:
        featureOptions.url() = "../data/world.shp";
    }
    else
    {
        // the --mem options tells us to just make an in-memory geometry:
        Ring* line = new Ring();
        line->push_back( osg::Vec3d(-60, 20, 0) );
        line->push_back( osg::Vec3d(-120, 20, 0) );
        line->push_back( osg::Vec3d(-120, 60, 0) );
        line->push_back( osg::Vec3d(-60, 60, 0) );
        featureOptions.geometry() = line;
    }

    // Define a style for the feature data. Since we are going to render the
    // vectors as lines, configure the line symbolizer:
    Style style;

    LineSymbol* ls = style.getOrCreateSymbol<LineSymbol>();
    ls->stroke()->color() = Color::Yellow;
    ls->stroke()->width() = 2.0f;

    // That's it, the map is ready; now create a MapNode to render the Map:
    MapNodeOptions mapNodeOptions;
    mapNodeOptions.enableLighting() = false;
    MapNode* mapNode = new MapNode( map, mapNodeOptions );

    osg::Group* root = new osg::Group();
    root->addChild( mapNode );
    viewer.setSceneData( root );
    viewer.setCameraManipulator( new EarthManipulator() );

    // Process cmdline args
    MapNodeHelper().parse(mapNode, arguments, &viewer, root, new LabelControl("Features Demo"));
   
    if (useStencil)
    {
        FeatureStencilModelOptions stencilOptions;
        stencilOptions.featureOptions() = featureOptions;
        stencilOptions.styles() = new StyleSheet();
        stencilOptions.styles()->addStyle( style );
        stencilOptions.enableLighting() = false;
        stencilOptions.depthTestEnabled() = false;
        ls->stroke()->width() = 0.1f;
        map->addModelLayer( new ModelLayer("my features", stencilOptions) );
    }
    else if (useRaster)
    {
        AGGLiteOptions rasterOptions;
        rasterOptions.featureOptions() = featureOptions;
        rasterOptions.styles() = new StyleSheet();
        rasterOptions.styles()->addStyle( style );
        map->addImageLayer( new ImageLayer("my features", rasterOptions) );
    }
    else //if (useGeom || useOverlay)
    {
        FeatureGeomModelOptions geomOptions;
        geomOptions.featureOptions() = featureOptions;
        geomOptions.styles() = new StyleSheet();
        geomOptions.styles()->addStyle( style );
        geomOptions.enableLighting() = false;

        ModelLayerOptions layerOptions( "my features", geomOptions );
        map->addModelLayer( new ModelLayer(layerOptions) );
    }

    if ( useLabels )
    {
        // set up symbology for drawing labels. We're pulling the label
        // text from the name attribute, and its draw priority from the
        // population attribute.
        Style labelStyle;

        TextSymbol* text = labelStyle.getOrCreateSymbol<TextSymbol>();
        text->content() = StringExpression( "[cntry_name]" );
        text->priority() = NumericExpression( "[pop_cntry]" );
        text->removeDuplicateLabels() = true;
        text->size() = 16.0f;
        text->alignment() = TextSymbol::ALIGN_CENTER_CENTER;
        text->fill()->color() = Color::White;
        text->halo()->color() = Color::DarkGray;

        // and configure a model layer:
        FeatureGeomModelOptions geomOptions;
        geomOptions.featureOptions() = featureOptions;
        geomOptions.styles() = new StyleSheet();
        geomOptions.styles()->addStyle( labelStyle );

        map->addModelLayer( new ModelLayer("labels", geomOptions) );
    }

    if ( !useStencil )
        viewer.getCamera()->addCullCallback( new osgEarth::Util::AutoClipPlaneCullCallback(mapNode) );

    // add some stock OSG handlers:
    viewer.addEventHandler(new osgViewer::StatsHandler());
    viewer.addEventHandler(new osgViewer::WindowSizeHandler());
    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));

    return viewer.run();
}
示例#6
0
//
// NOTE: run this sample from the repo/tests directory.
//
int main(int argc, char** argv)
{
    osg::ArgumentParser arguments(&argc,argv);

    bool useRaster  = arguments.read("--rasterize");
    bool useOverlay = arguments.read("--overlay");
    bool useStencil = arguments.read("--stencil");
    bool useMem     = arguments.read("--mem");
    bool useLabels  = arguments.read("--labels");

    osgViewer::Viewer viewer(arguments);

    // Start by creating the map:
    Map* map = new Map();

    // Start with a basemap imagery layer; we'll be using the GDAL driver
    // to load a local GeoTIFF file:
    GDALOptions basemapOpt;
    basemapOpt.url() = "../data/world.tif";
    map->addImageLayer( new ImageLayer( ImageLayerOptions("basemap", basemapOpt) ) );

    // Next we add a feature layer. First configure a feature driver to 
    // load the vectors from a shapefile:
    OGRFeatureOptions featureOpt;
    if ( !useMem )
    {
        featureOpt.url() = "../data/usa.shp";
    }
    else
    {
        Ring* line = new Ring();
        line->push_back( osg::Vec3d(-60, 20, 0) );
        line->push_back( osg::Vec3d(-120, 20, 0) );
        line->push_back( osg::Vec3d(-120, 60, 0) );
        line->push_back( osg::Vec3d(-60, 60, 0) );
        featureOpt.geometry() = line;
    }

    // Define a style for the feature data. Since we are going to render the
    // vectors as lines, configure the line symbolizer:
    Style style;

    LineSymbol* ls = style.getOrCreateSymbol<LineSymbol>();
    ls->stroke()->color() = osg::Vec4f( 1,1,0,1 ); // yellow
    ls->stroke()->width() = 2.0f;

    // Add some text labels.
    if ( useLabels )
    {
        TextSymbol* text = style.getOrCreateSymbol<TextSymbol>();
        text->provider() = "overlay";
        text->content() = StringExpression( "[name]" );
        text->priority() = NumericExpression( "[area]" );
        text->removeDuplicateLabels() = true;
        text->size() = 16.0f;
        text->fill()->color() = Color::White;
        text->halo()->color() = Color::DarkGray;
    }

    // That's it, the map is ready; now create a MapNode to render the Map:
    MapNodeOptions mapNodeOptions;
    mapNodeOptions.enableLighting() = false;

    MapNode* mapNode = new MapNode( map, mapNodeOptions );

    // Now we'll choose the AGG-Lite driver to render the features. By the way, the
    // feature data is actually polygons, so we override that to treat it as lines.
    // We apply the feature driver and set the style as well.
    if (useStencil)
    {
        FeatureStencilModelOptions worldOpt;
        worldOpt.featureOptions() = featureOpt;
        worldOpt.geometryTypeOverride() = Geometry::TYPE_LINESTRING;
        worldOpt.styles() = new StyleSheet();
        worldOpt.styles()->addStyle( style );
        worldOpt.enableLighting() = false;
        worldOpt.depthTestEnabled() = false;
        map->addModelLayer( new ModelLayer( "my features", worldOpt ) );
    }
    else if (useRaster)
    {
        AGGLiteOptions worldOpt;
        worldOpt.featureOptions() = featureOpt;
        worldOpt.geometryTypeOverride() = Geometry::TYPE_LINESTRING;
        worldOpt.styles() = new StyleSheet();
        worldOpt.styles()->addStyle( style );
        map->addImageLayer( new ImageLayer( ImageLayerOptions("world", worldOpt) ) );
    }
    else //if (useGeom || useOverlay)
    {
        FeatureGeomModelOptions worldOpt;
        worldOpt.featureOptions() = featureOpt;
        worldOpt.geometryTypeOverride() = Geometry::TYPE_LINESTRING;
        worldOpt.styles() = new StyleSheet();
        worldOpt.styles()->addStyle( style );
        worldOpt.enableLighting() = false;
        worldOpt.depthTestEnabled() = false;

        ModelLayerOptions options( "my features", worldOpt );
        options.overlay() = useOverlay;
        map->addModelLayer( new ModelLayer(options) );
    }

    viewer.setSceneData( mapNode );
    viewer.setCameraManipulator( new EarthManipulator() );

    if ( !useStencil && !useOverlay )
        viewer.addEventHandler( new osgEarth::Util::AutoClipPlaneHandler );

    // add some stock OSG handlers:
    viewer.addEventHandler(new osgViewer::StatsHandler());
    viewer.addEventHandler(new osgViewer::WindowSizeHandler());
    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));

    return viewer.run();
}
示例#7
0
void 
KML_Placemark::build( const Config& conf, KMLContext& cx )
{
    Style masterStyle;

    if ( conf.hasValue("styleurl") )
    {
        // process a "stylesheet" style
        const Style* ref_style = cx._sheet->getStyle( conf.value("styleurl"), false );
        if ( ref_style )
            masterStyle = *ref_style;
    }
    else if ( conf.hasChild("style") )
    {
        // process an "inline" style
        KML_Style kmlStyle;
        kmlStyle.scan( conf.child("style"), cx );
        masterStyle = cx._activeStyle;
    }

    // parse the geometry. the placemark must have geometry to be valid. The 
    // geometry parse may optionally specify an altitude mode as well.
    KML_Geometry geometry;
    geometry.build(conf, cx, masterStyle);

    Geometry* allGeom = geometry._geom.get();
    if ( allGeom )
    {
        GeometryIterator giter( allGeom, false );
        while( giter.hasMore() )
        {
            Geometry* geom = giter.next();
            Style style = masterStyle;

            // KML's default altitude mode is clampToGround.
            AltitudeMode altMode = ALTMODE_RELATIVE;

            AltitudeSymbol* altSym = style.get<AltitudeSymbol>();
            if ( !altSym )
            {
                altSym = style.getOrCreate<AltitudeSymbol>();
                altSym->clamping() = AltitudeSymbol::CLAMP_RELATIVE_TO_TERRAIN;
                altSym->technique() = AltitudeSymbol::TECHNIQUE_SCENE;
            }
            else if ( !altSym->clamping().isSetTo(AltitudeSymbol::CLAMP_RELATIVE_TO_TERRAIN) )
            {
                altMode = ALTMODE_ABSOLUTE;
            }
            
            if ( geom && geom->getTotalPointCount() > 0 )
            {
                GeoPoint position(cx._srs.get(), geom->getBounds().center(), altMode);

                bool isPoly = geom->getComponentType() == Geometry::TYPE_POLYGON;
                bool isPoint = geom->getComponentType() == Geometry::TYPE_POINTSET;

                // check for symbols.
                ModelSymbol*    model = style.get<ModelSymbol>();
                IconSymbol*     icon  = style.get<IconSymbol>();
                TextSymbol*     text  = style.get<TextSymbol>();

                if ( !text && cx._options->defaultTextSymbol().valid() )
                    text = cx._options->defaultTextSymbol().get();

                // the annotation name:
                std::string name = conf.hasValue("name") ? conf.value("name") : "";
                if ( text && !name.empty() )
                {
                    text->content()->setLiteral( name );
                }

                AnnotationNode* featureNode = 0L;
                AnnotationNode* iconNode    = 0L;
                AnnotationNode* modelNode   = 0L;

                // one coordinate? It's a place marker or a label.
                if ( model || icon || text || geom->getTotalPointCount() == 1 )
                {
                    // load up the default icon if there we don't have one.
                    if ( !model && !icon )
                    {
                        icon = cx._options->defaultIconSymbol().get();
                        if ( icon )
                            style.add( icon );
                    }

                    // if there's a model, render that - models do NOT get labels.
                    if ( model )
                    {
                        ModelNode* node = new ModelNode( cx._mapNode, style, cx._dbOptions );
                        node->setPosition( position );

                        if ( cx._options->modelScale() != 1.0f )
                        {
                            float s = *cx._options->modelScale();
                            node->setScale( osg::Vec3f(s,s,s) );
                        }

                        if ( !cx._options->modelRotation()->zeroRotation() )
                        {
                            node->setLocalRotation( *cx._options->modelRotation() );
                        }

                        modelNode = node;
                    }

                    else if ( !text && !name.empty() )
                    {
                        text = style.getOrCreate<TextSymbol>();
                        text->content()->setLiteral( name );
                    }

                    if ( icon )
                    {
                        iconNode = new PlaceNode( cx._mapNode, position, style, cx._dbOptions );
                    }

                    else if ( !model && text && !name.empty() )
                    {
                        // note: models do not get labels.
                        iconNode = new LabelNode( cx._mapNode, position, style );
                    }
                }

                // multiple coords? feature:
                if ( geom->getTotalPointCount() > 1 )
                {
                    ExtrusionSymbol* extruded = style.get<ExtrusionSymbol>();
                    AltitudeSymbol*  altitude = style.get<AltitudeSymbol>();

                    // Remove symbols that we have already processed so the geometry
                    // compiler doesn't get confused.
                    if ( model )
                        style.removeSymbol( model );
                    if ( icon )
                        style.removeSymbol( icon );
                    if ( text )
                        style.removeSymbol( text );

                    // analyze the data; if the Z coords are all 0.0, enable draping.
                    if ( /*isPoly &&*/ !extruded && altitude && altitude->clamping() != AltitudeSymbol::CLAMP_TO_TERRAIN )
                    {
                        bool zeroElev = true;
                        ConstGeometryIterator gi( geom, false );
                        while( zeroElev == true && gi.hasMore() )
                        {
                            const Geometry* g = gi.next();
                            for( Geometry::const_iterator ji = g->begin(); ji != g->end() && zeroElev == true; ++ji )
                            {
                                if ( !osg::equivalent(ji->z(), 0.0) )
                                    zeroElev = false;
                            }
                        }
                        if ( zeroElev )
                        {
                            altitude->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
                            altitude->technique() = AltitudeSymbol::TECHNIQUE_GPU;
                        }
                    }

                    // Make a feature node; drape if we're not extruding.
                    bool draped =
                        isPoly    && 
                        !extruded &&
                        (!altitude || altitude->clamping() == AltitudeSymbol::CLAMP_TO_TERRAIN);

                    if ( draped && style.get<LineSymbol>() && !style.get<PolygonSymbol>() )
                    {
                        draped = false;
                    }

                    // turn off the clamping if we're draping.
                    if ( draped && altitude )
                    {
                        altitude->technique() = AltitudeSymbol::TECHNIQUE_DRAPE;
                    }

                    GeometryCompilerOptions compilerOptions;

                    // Check for point-model substitution:
                    if ( style.has<ModelSymbol>() )
                    {
                        compilerOptions.instancing() = true;
                    }

                    Feature* feature = new Feature(geom, cx._srs.get(), style);
                    featureNode = new FeatureNode( cx._mapNode, feature, draped, compilerOptions );
                }


                // assemble the results:
                if ( (iconNode || modelNode) && featureNode )
                {
                    osg::Group* group = new osg::Group();
                    group->addChild( featureNode );
                    if ( iconNode )
                        group->addChild( iconNode );
                    if ( modelNode )
                        group->addChild( modelNode );

                    cx._groupStack.top()->addChild( group );

                    if ( iconNode && cx._options->declutter() == true )
                        Decluttering::setEnabled( iconNode->getOrCreateStateSet(), true );

                    if ( iconNode )
                        KML_Feature::build( conf, cx, iconNode );
                    if ( modelNode )
                        KML_Feature::build( conf, cx, modelNode );
                    if ( featureNode )
                        KML_Feature::build( conf, cx, featureNode );
                }

                else
                {
                    if ( iconNode )
                    {
                        if ( cx._options->iconAndLabelGroup().valid() )
                        {
                            cx._options->iconAndLabelGroup()->addChild( iconNode );
                        }
                        else
                        {
                            cx._groupStack.top()->addChild( iconNode );
                            if ( cx._options->declutter() == true )
                                Decluttering::setEnabled( iconNode->getOrCreateStateSet(), true );
                        }
                        KML_Feature::build( conf, cx, iconNode );
                    }
                    if ( modelNode )
                    {
                        cx._groupStack.top()->addChild( modelNode );
                        KML_Feature::build( conf, cx, modelNode );
                    }
                    if ( featureNode )
                    {
                        cx._groupStack.top()->addChild( featureNode );
                        KML_Feature::build( conf, cx, featureNode );
                    }
                }
            }
        }
    }
}