void
createLayerItem( Grid* grid, int gridRow, int layerIndex, int numLayers, TerrainLayer* layer, bool isActive )
{
// a checkbox to enable/disable the layer:
CheckBoxControl* enabled = new CheckBoxControl( layer->getVisible() );
enabled->addEventHandler( new LayerVisibleHandler(layer) );
grid->setControl( 0, gridRow, enabled );
// the layer name
LabelControl* name = new LabelControl( layer->getName() );
grid->setControl( 1, gridRow, name );
ImageLayer* imageLayer = dynamic_cast< ImageLayer* > (layer );
if (imageLayer)
{
// an opacity slider
HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, imageLayer->getOpacity() );
opacity->setWidth( 125 );
opacity->setHeight( 12 );
opacity->addEventHandler( new LayerOpacityHandler(imageLayer) );
grid->setControl( 2, gridRow, opacity );
}
// move buttons
if ( layerIndex < numLayers-1 && isActive )
{
LabelControl* upButton = new LabelControl( "UP", 14 );
upButton->setBackColor( .4,.4,.4,1 );
upButton->setActiveColor( .8,0,0,1 );
upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex+1 ) );
grid->setControl( 3, gridRow, upButton );
}
if ( layerIndex > 0 && isActive)
{
LabelControl* upButton = new LabelControl( "DOWN", 14 );
upButton->setBackColor( .4,.4,.4,1 );
upButton->setActiveColor( .8,0,0,1 );
upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex-1 ) );
grid->setControl( 4, gridRow, upButton );
}
// add/remove button:
LabelControl* addRemove = new LabelControl( isActive? "REMOVE" : "ADD", 14 );
addRemove->setHorizAlign( Control::ALIGN_CENTER );
addRemove->setBackColor( .4,.4,.4,1 );
addRemove->setActiveColor( .8,0,0,1 );
if ( isActive )
addRemove->addEventHandler( new RemoveLayerHandler(layer) );
else
addRemove->addEventHandler( new AddLayerHandler(layer) );
grid->setControl( 5, gridRow, addRemove );
}
void
createModelLayerItem( Grid* grid, int gridRow, ModelLayer* layer, bool isActive )
{
// a checkbox to enable/disable the layer:
CheckBoxControl* enabled = new CheckBoxControl( layer->getVisible() );
enabled->addEventHandler( new ModelLayerVisibleHandler(layer) );
grid->setControl( 0, gridRow, enabled );
// the layer name
LabelControl* name = new LabelControl( layer->getName() );
grid->setControl( 1, gridRow, name );
// an opacity slider
HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, layer->getOpacity() );
opacity->setWidth( 125 );
opacity->setHeight( 12 );
opacity->addEventHandler( new ModelLayerOpacityHandler(layer) );
grid->setControl( 2, gridRow, opacity );
}
int
main(int argc, char** argv)
{
osg::ArgumentParser arguments(&argc,argv);
osg::DisplaySettings::instance()->setMinimumNumStencilBits( 8 );
std::vector< std::string > imageFiles;
std::vector< Bounds > imageBounds;
//Read in the image files
std::string filename;
Bounds bounds;
while (arguments.read("--image", filename, bounds.xMin(), bounds.yMin(), bounds.xMax(), bounds.yMax()))
{
imageFiles.push_back( filename );
imageBounds.push_back( bounds );
}
if (imageFiles.empty())
{
imageFiles.push_back("../data/osgearth.gif");
imageBounds.push_back( Bounds(-100, 30, -90, 40) );
}
bool moveVert = arguments.read("--vert");
// load the .earth file from the command line.
osg::Node* earthNode = osgDB::readNodeFiles( arguments );
if (!earthNode)
return usage( "Unable to load earth model." );
osgViewer::Viewer viewer(arguments);
EarthManipulator* manip = new EarthManipulator();
viewer.setCameraManipulator( manip );
osg::Group* root = new osg::Group();
root->addChild( earthNode );
//Create the control panel
root->addChild( createControlPanel(&viewer) );
viewer.setSceneData( root );
osgEarth::MapNode* mapNode = osgEarth::MapNode::findMapNode( earthNode );
if ( mapNode )
{
for (unsigned int i = 0; i < imageFiles.size(); i++)
{
std::string imageFile = imageFiles[i];
//Read the image file and play it if it's a movie
osg::Image* image = osgDB::readImageFile(imageFile);
if (image)
{
osg::ImageStream* is = dynamic_cast<osg::ImageStream*>(image);
if (is)
{
is->play();
}
}
//Create a new ImageOverlay and set it's bounds
//ImageOverlay* overlay = new ImageOverlay(mapNode->getMap()->getProfile()->getSRS()->getEllipsoid(), image);
ImageOverlay* overlay = new ImageOverlay(mapNode);
overlay->setImage( image );
overlay->setBounds(imageBounds[i]);
root->addChild( overlay );
//Create a new ImageOverlayEditor and set it's node mask to 0 to hide it initially
#if OSG_MIN_VERSION_REQUIRED(2,9,6)
osg::Node* editor = new ImageOverlayEditor( overlay);
#else
//Just make an empty group for pre-2.9.6
osg::Node* editor = new osg::Group;
#endif
editor->setNodeMask( 0 );
root->addChild( editor );
// Add an image preview
ImageControl* imageCon = new ImageControl( image );
imageCon->setSize( 64, 64 );
imageCon->setVertAlign( Control::ALIGN_CENTER );
s_layerBox->setControl( 0, i, imageCon );
//Add some controls
CheckBoxControl* enabled = new CheckBoxControl( true );
enabled->addEventHandler( new EnabledHandler(overlay) );
enabled->setVertAlign( Control::ALIGN_CENTER );
s_layerBox->setControl( 1, i, enabled );
//The overlay name
LabelControl* name = new LabelControl( osgDB::getSimpleFileName( imageFile) );
name->setVertAlign( Control::ALIGN_CENTER );
s_layerBox->setControl( 2, i, name );
// an opacity slider
HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, overlay->getAlpha() );
opacity->setWidth( 125 );
opacity->setHeight( 12 );
opacity->setVertAlign( Control::ALIGN_CENTER );
opacity->addEventHandler( new OpacityHandler(overlay) );
s_layerBox->setControl( 3, i, opacity );
// Add a text label:
LabelControl* edit = new LabelControl( "Edit" );
edit->setVertAlign( Control::ALIGN_CENTER );
edit->addEventHandler(new EditHandler(overlay, &viewer, editor));
s_layerBox->setControl(4, i, edit );
}
}
// osgEarth benefits from pre-compilation of GL objects in the pager. In newer versions of
// OSG, this activates OSG's IncrementalCompileOpeartion in order to avoid frame breaks.
viewer.getDatabasePager()->setDoPreCompile( true );
// add some stock OSG handlers:
viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
viewer.addEventHandler(new osgViewer::LODScaleHandler());
viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
return viewer.run();
}
int
main(int argc, char** argv)
{
osg::Group* root = new osg::Group();
// try to load an earth file.
osg::ArgumentParser arguments(&argc,argv);
osgViewer::Viewer viewer(arguments);
viewer.setCameraManipulator( new EarthManipulator() );
// load an earth file and parse demo arguments
osg::Node* node = MapNodeHelper().load(arguments, &viewer);
if ( !node )
return usage(argv);
root->addChild( node );
// find the map node that we loaded.
MapNode* mapNode = MapNode::findMapNode(node);
if ( !mapNode )
return usage(argv);
// Group to hold all our annotation elements.
osg::Group* annoGroup = new osg::Group();
root->addChild( annoGroup );
//A group for all the editors
osg::Group* editorGroup = new osg::Group;
root->addChild( editorGroup );
editorGroup->setNodeMask( 0 );
HBox* box = ControlCanvas::getOrCreate(&viewer)->addControl( new HBox() );
box->setChildSpacing( 5 );
//Add a toggle button to toggle editing
CheckBoxControl* editCheckbox = new CheckBoxControl( false );
editCheckbox->addEventHandler( new ToggleNodeHandler( editorGroup ) );
box->addControl( editCheckbox );
LabelControl* labelControl = new LabelControl( "Edit Annotations" );
labelControl->setFontSize( 24.0f );
box->addControl( labelControl );
// Make a group for 2D items, and activate the decluttering engine. Decluttering
// will migitate overlap between elements that occupy the same screen real estate.
osg::Group* labelGroup = new osg::Group();
Decluttering::setEnabled( labelGroup->getOrCreateStateSet(), true );
annoGroup->addChild( labelGroup );
// Style our labels:
Style labelStyle;
labelStyle.getOrCreate<TextSymbol>()->alignment() = TextSymbol::ALIGN_CENTER_CENTER;
labelStyle.getOrCreate<TextSymbol>()->fill()->color() = Color::Yellow;
// A lat/long SRS for specifying points.
const SpatialReference* geoSRS = mapNode->getMapSRS()->getGeographicSRS();
//--------------------------------------------------------------------
// A series of place nodes (an icon with a text label)
{
Style pin;
pin.getOrCreate<IconSymbol>()->url()->setLiteral( "../data/placemark32.png" );
// bunch of pins:
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -74.00, 40.71), "New York" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -77.04, 38.85), "Washington, DC", pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS,-118.40, 33.93), "Los Angeles" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -71.03, 42.37), "Boston" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS,-157.93, 21.35), "Honolulu" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, 139.75, 35.68), "Tokyo" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -90.25, 29.98), "New Orleans" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -80.28, 25.82), "Miami" , pin));
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS,-117.17, 32.72), "San Diego" , pin));
// test with an LOD:
osg::LOD* lod = new osg::LOD();
lod->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, 14.68, 50.0), "Prague", pin), 0.0, 1e6);
labelGroup->addChild( lod );
// absolute altitude:
labelGroup->addChild( new PlaceNode(mapNode, GeoPoint(geoSRS, -87.65, 41.90, 1000, ALTMODE_ABSOLUTE), "Chicago" , pin));
}
//--------------------------------------------------------------------
// a box that follows lines of latitude (rhumb line interpolation, the default)
{
Geometry* geom = new Polygon();
geom->push_back( osg::Vec3d(0, 40, 0) );
geom->push_back( osg::Vec3d(-60, 40, 0) );
geom->push_back( osg::Vec3d(-60, 60, 0) );
geom->push_back( osg::Vec3d(0, 60, 0) );
Style geomStyle;
geomStyle.getOrCreate<LineSymbol>()->stroke()->color() = Color::Cyan;
geomStyle.getOrCreate<LineSymbol>()->stroke()->width() = 5.0f;
geomStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
geomStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_GPU;
FeatureNode* gnode = new FeatureNode(mapNode, new Feature(geom, geoSRS, geomStyle));
annoGroup->addChild( gnode );
labelGroup->addChild( new LabelNode(mapNode, GeoPoint(geoSRS,-30, 50), "Rhumb line polygon", labelStyle) );
}
//--------------------------------------------------------------------
// another rhumb box that crosses the antimeridian
{
Geometry* geom = new Polygon();
geom->push_back( -160., -30. );
geom->push_back( 150., -20. );
geom->push_back( 160., -45. );
geom->push_back( -150., -40. );
Style geomStyle;
geomStyle.getOrCreate<LineSymbol>()->stroke()->color() = Color::Lime;
geomStyle.getOrCreate<LineSymbol>()->stroke()->width() = 3.0f;
geomStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
geomStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_GPU;
FeatureNode* gnode = new FeatureNode(mapNode, new Feature(geom, geoSRS, geomStyle));
annoGroup->addChild( gnode );
labelGroup->addChild( new LabelNode(mapNode, GeoPoint(geoSRS, -175, -35), "Antimeridian polygon", labelStyle) );
}
//--------------------------------------------------------------------
// A path using great-circle interpolation.
{
Geometry* path = new LineString();
path->push_back( osg::Vec3d(-74, 40.714, 0) ); // New York
path->push_back( osg::Vec3d(139.75, 35.68, 0) ); // Tokyo
Style pathStyle;
pathStyle.getOrCreate<LineSymbol>()->stroke()->color() = Color::Red;
pathStyle.getOrCreate<LineSymbol>()->stroke()->width() = 3.0f;
pathStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
pathStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_GPU;
Feature* pathFeature = new Feature(path, geoSRS, pathStyle);
pathFeature->geoInterp() = GEOINTERP_GREAT_CIRCLE;
//OE_INFO << "Path extent = " << pathFeature->getExtent().toString() << std::endl;
FeatureNode* pathNode = new FeatureNode(mapNode, pathFeature);
annoGroup->addChild( pathNode );
labelGroup->addChild( new LabelNode(mapNode, GeoPoint(geoSRS,-170, 61.2), "Great circle path", labelStyle) );
}
//--------------------------------------------------------------------
// Two circle segments around New Orleans.
{
Style circleStyle;
circleStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::Cyan, 0.5);
circleStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
circleStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_DRAPE;
CircleNode* circle = new CircleNode(
mapNode,
GeoPoint(geoSRS, -90.25, 29.98, 1000., ALTMODE_RELATIVE),
Distance(300, Units::KILOMETERS),
circleStyle, Angle(-45.0, Units::DEGREES), Angle(45.0, Units::DEGREES), true);
annoGroup->addChild( circle );
editorGroup->addChild( new CircleNodeEditor( circle ) );
}
{
Style circleStyle;
circleStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::Red, 0.5);
circleStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
circleStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_DRAPE;
CircleNode* circle = new CircleNode(
mapNode,
GeoPoint(geoSRS, -90.25, 29.98, 1000., ALTMODE_RELATIVE),
Distance(300, Units::KILOMETERS),
circleStyle, Angle(45.0, Units::DEGREES), Angle(360.0 - 45.0, Units::DEGREES), true);
annoGroup->addChild( circle );
editorGroup->addChild( new CircleNodeEditor( circle ) );
}
//--------------------------------------------------------------------
// An extruded ellipse around Miami.
{
Style ellipseStyle;
ellipseStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::Orange, 0.75);
ellipseStyle.getOrCreate<ExtrusionSymbol>()->height() = 250000.0; // meters MSL
EllipseNode* ellipse = new EllipseNode(
mapNode,
GeoPoint(geoSRS, -80.28, 25.82, 0.0, ALTMODE_RELATIVE),
Distance(250, Units::MILES),
Distance(100, Units::MILES),
Angle (0, Units::DEGREES),
ellipseStyle,
Angle(45.0, Units::DEGREES),
Angle(360.0 - 45.0, Units::DEGREES),
true);
annoGroup->addChild( ellipse );
editorGroup->addChild( new EllipseNodeEditor( ellipse ) );
}
{
Style ellipseStyle;
ellipseStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::Blue, 0.75);
ellipseStyle.getOrCreate<ExtrusionSymbol>()->height() = 250000.0; // meters MSL
EllipseNode* ellipse = new EllipseNode(
mapNode,
GeoPoint(geoSRS, -80.28, 25.82, 0.0, ALTMODE_RELATIVE),
Distance(250, Units::MILES),
Distance(100, Units::MILES),
Angle (0, Units::DEGREES),
ellipseStyle,
Angle(-40.0, Units::DEGREES),
Angle(40.0, Units::DEGREES),
true);
annoGroup->addChild( ellipse );
editorGroup->addChild( new EllipseNodeEditor( ellipse ) );
}
//--------------------------------------------------------------------
{
// A rectangle around San Diego
Style rectStyle;
rectStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::Green, 0.5);
rectStyle.getOrCreate<AltitudeSymbol>()->clamping() = AltitudeSymbol::CLAMP_TO_TERRAIN;
rectStyle.getOrCreate<AltitudeSymbol>()->technique() = AltitudeSymbol::TECHNIQUE_DRAPE;
RectangleNode* rect = new RectangleNode(
mapNode,
GeoPoint(geoSRS, -117.172, 32.721),
Distance(300, Units::KILOMETERS ),
Distance(600, Units::KILOMETERS ),
rectStyle);
annoGroup->addChild( rect );
editorGroup->addChild( new RectangleNodeEditor( rect ) );
}
//--------------------------------------------------------------------
// An extruded polygon roughly the shape of Utah. Here we demonstrate the
// FeatureNode, where you create a geographic geometry and use it as an
// annotation.
{
Geometry* utah = new Polygon();
utah->push_back( -114.052, 37.0 );
utah->push_back( -109.054, 37.0 );
utah->push_back( -109.054, 41.0 );
utah->push_back( -111.040, 41.0 );
utah->push_back( -111.080, 42.059 );
utah->push_back( -114.080, 42.024 );
Style utahStyle;
utahStyle.getOrCreate<ExtrusionSymbol>()->height() = 250000.0; // meters MSL
utahStyle.getOrCreate<PolygonSymbol>()->fill()->color() = Color(Color::White, 0.8);
Feature* utahFeature = new Feature(utah, geoSRS, utahStyle);
FeatureNode* featureNode = new FeatureNode(mapNode, utahFeature);
annoGroup->addChild( featureNode );
}
//--------------------------------------------------------------------
// an image overlay.
{
ImageOverlay* imageOverlay = 0L;
osg::Image* image = osgDB::readImageFile( "../data/USFLAG.TGA" );
if ( image )
{
imageOverlay = new ImageOverlay(mapNode, image);
imageOverlay->setBounds( Bounds( -100.0, 35.0, -90.0, 40.0) );
annoGroup->addChild( imageOverlay );
editorGroup->addChild( new ImageOverlayEditor( imageOverlay ) );
}
}
//--------------------------------------------------------------------
// install decoration. These change the appearance of an Annotation
// based on some user action.
// highlight annotation upon hover by default:
DecorationInstaller highlightInstaller("hover", new HighlightDecoration());
annoGroup->accept( highlightInstaller );
// scale labels when hovering:
DecorationInstaller scaleInstaller("hover", new ScaleDecoration(1.1f));
labelGroup->accept( scaleInstaller );
// install an event handler for picking and hovering.
AnnotationEventCallback* cb = new AnnotationEventCallback();
cb->addHandler( new MyAnnoEventHandler() );
annoGroup->addEventCallback( cb );
//--------------------------------------------------------------------
// initialize the viewer:
viewer.setSceneData( root );
viewer.getCamera()->addCullCallback( new AutoClipPlaneCullCallback(mapNode) );
viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
return viewer.run();
}
int
main(int argc, char** argv)
{
osg::ArgumentParser arguments(&argc,argv);
osg::DisplaySettings::instance()->setMinimumNumStencilBits( 8 );
osgViewer::Viewer viewer(arguments);
// load the .earth file from the command line.
osg::Node* earthNode = MapNodeHelper().load( arguments, &viewer );
if (!earthNode)
{
OE_NOTICE << "Unable to load earth model." << std::endl;
return 1;
}
MapNode* mapNode = MapNode::findMapNode( earthNode );
if ( !mapNode )
{
OE_NOTICE << "Input file was not a .earth file" << std::endl;
return 1;
}
earthNode->setNodeMask( 0x1 );
osgEarth::Util::EarthManipulator* earthManip = new EarthManipulator();
viewer.setCameraManipulator( earthManip );
osg::Group* root = new osg::Group();
root->addChild( earthNode );
//Create the MeasureToolHandler
MeasureToolHandler* measureTool = new MeasureToolHandler(root, mapNode);
measureTool->setIntersectionMask( 0x1 );
viewer.addEventHandler( measureTool );
//Create some controls to interact with the measuretool
ControlCanvas* canvas = new ControlCanvas( &viewer );
root->addChild( canvas );
canvas->setNodeMask( 0x1 << 1 );
Grid* grid = new Grid();
grid->setBackColor(0,0,0,0.5);
grid->setMargin( 10 );
grid->setPadding( 10 );
grid->setChildSpacing( 10 );
grid->setChildVertAlign( Control::ALIGN_CENTER );
grid->setAbsorbEvents( true );
grid->setVertAlign( Control::ALIGN_BOTTOM );
canvas->addControl( grid );
//Add a label to display the distance
// Add a text label:
grid->setControl( 0, 0, new LabelControl("Distance:") );
LabelControl* label = new LabelControl();
label->setFont( osgEarth::Registry::instance()->getDefaultFont() );
label->setFontSize( 24.0f );
label->setHorizAlign( Control::ALIGN_LEFT );
label->setText("click to measure");
grid->setControl( 1, 0, label );
//Add a callback to update the label when the distance changes
measureTool->addEventHandler( new MyMeasureToolCallback(label) );
Style style = measureTool->getLineStyle();
style.getOrCreate<LineSymbol>()->stroke()->color() = Color::Red;
style.getOrCreate<LineSymbol>()->stroke()->width() = 4.0f;
measureTool->setLineStyle(style);
//Add a checkbox to control if we are doing path based measurement or just point to point
grid->setControl( 0, 1, new LabelControl("Path"));
CheckBoxControl* checkBox = new CheckBoxControl(false);
checkBox->setHorizAlign(Control::ALIGN_LEFT);
checkBox->addEventHandler( new TogglePathHandler(measureTool));
grid->setControl( 1, 1, checkBox);
//Add a toggle to set the mode of the measuring tool
grid->setControl( 0, 2, new LabelControl("Great Circle"));
CheckBoxControl* mode = new CheckBoxControl(true);
mode->setHorizAlign(Control::ALIGN_LEFT);
mode->addEventHandler( new ToggleModeHandler(measureTool));
grid->setControl( 1, 2, mode);
//Add a mouse coords readout:
LabelControl* mouseLabel = new LabelControl();
grid->setControl( 0, 3, new LabelControl("Mouse:"));
grid->setControl( 1, 3, mouseLabel );
viewer.addEventHandler(new MouseCoordsTool(mapNode, mouseLabel) );
viewer.setSceneData( root );
// add some stock OSG handlers:
viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
viewer.addEventHandler(new osgViewer::ThreadingHandler());
viewer.addEventHandler(new osgViewer::LODScaleHandler());
viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
return viewer.run();
}
void
addLayerItem( Grid* grid, int layerIndex, int numLayers, Layer* layer, bool isActive )
{
int gridCol = 0;
int gridRow = grid->getNumRows();
VisibleLayer* visibleLayer = dynamic_cast<VisibleLayer*>(layer);
// only show layers that derive from VisibleLayer
if (!visibleLayer)
return;
ImageLayer* imageLayer = dynamic_cast<ImageLayer*>(layer);
// don't show hidden coverage layers
if (imageLayer && imageLayer->isCoverage() && !imageLayer->getVisible())
return;
ElevationLayer* elevationLayer = dynamic_cast<ElevationLayer*>(layer);
// a checkbox to toggle the layer's visibility:
if (visibleLayer && layer->getEnabled() && !(imageLayer && imageLayer->isCoverage()))
{
CheckBoxControl* visibility = new CheckBoxControl( visibleLayer->getVisible() );
visibility->addEventHandler( new ToggleLayerVisibility(visibleLayer) );
grid->setControl( gridCol, gridRow, visibility );
}
gridCol++;
// the layer name
LabelControl* name = new LabelControl( layer->getName() );
if (!layer->getEnabled())
name->setForeColor(osg::Vec4f(1,1,1,0.35));
grid->setControl( gridCol, gridRow, name );
gridCol++;
// layer type
std::string typeName = typeid(*layer).name();
typeName = typeName.substr(typeName.find_last_of(":")+1);
LabelControl* typeLabel = new LabelControl(typeName, osg::Vec4(.5,.7,.5,1));
grid->setControl( gridCol, gridRow, typeLabel );
gridCol++;
// status indicator
LabelControl* statusLabel =
layer->getStatus().isError() ? new LabelControl("[error]", osg::Vec4(1,0,0,1)) :
!layer->getEnabled()? new LabelControl("[disabled]", osg::Vec4(1,1,1,0.35)) :
new LabelControl("[ok]", osg::Vec4(0,1,0,1)) ;
grid->setControl( gridCol, gridRow, statusLabel );
gridCol++;
if (visibleLayer && !elevationLayer && visibleLayer->getEnabled())
{
// an opacity slider
HSliderControl* opacity = new HSliderControl( 0.0f, 1.0f, visibleLayer->getOpacity() );
opacity->setWidth( 125 );
opacity->setHeight( 12 );
opacity->addEventHandler( new LayerOpacityHandler(visibleLayer) );
grid->setControl( gridCol, gridRow, opacity );
}
gridCol++;
// zoom button
if (layer->getExtent().isValid())
{
LabelControl* zoomButton = new LabelControl("GO", 14);
zoomButton->setBackColor( .4,.4,.4,1 );
zoomButton->setActiveColor( .8,0,0,1 );
zoomButton->addEventHandler( new ZoomLayerHandler(layer) );
grid->setControl( gridCol, gridRow, zoomButton );
}
gridCol++;
// move buttons
if ( layerIndex < numLayers-1 && isActive )
{
LabelControl* upButton = new LabelControl( "UP", 14 );
upButton->setBackColor( .4,.4,.4,1 );
upButton->setActiveColor( .8,0,0,1 );
upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex+1 ) );
grid->setControl( gridCol, gridRow, upButton );
}
gridCol++;
if ( layerIndex > 0 && isActive)
{
LabelControl* upButton = new LabelControl( "DOWN", 14 );
upButton->setBackColor( .4,.4,.4,1 );
upButton->setActiveColor( .8,0,0,1 );
upButton->addEventHandler( new MoveLayerHandler( layer, layerIndex-1 ) );
grid->setControl( gridCol, gridRow, upButton );
}
gridCol++;
// add/remove button:
LabelControl* addRemove = new LabelControl( isActive? "REMOVE" : "ADD", 14 );
addRemove->setHorizAlign( Control::ALIGN_CENTER );
addRemove->setBackColor( .4,.4,.4,1 );
addRemove->setActiveColor( .8,0,0,1 );
addRemove->addEventHandler( new RemoveLayerHandler(layer) );
grid->setControl( gridCol, gridRow, addRemove );
gridCol++;
// enable/disable button
LabelControl* enableDisable = new LabelControl(layer->getEnabled() ? "DISABLE" : "ENABLE", 14);
enableDisable->setHorizAlign( Control::ALIGN_CENTER );
enableDisable->setBackColor( .4,.4,.4,1 );
enableDisable->setActiveColor( .8,0,0,1 );
enableDisable->addEventHandler( new EnableDisableHandler(layer) );
grid->setControl( gridCol, gridRow, enableDisable );
gridCol++;
if (layer->getStatus().isError())
{
grid->setControl(gridCol, gridRow, new LabelControl(layer->getStatus().message(), osg::Vec4(1,.2,.2,1)));
}
}