VgMapModule::VgPOIDescriptor Struct Reference

Public Attributes
std::string	mLayerName
VgEngine::VgPosition	mCenter
double	mHeight
double	mHeading
std::vector< VgEngine::VgPosition >	mBoundingPositions

Detailed Description

The VgPOIDescriptor describes location, footprint, height and other information tied to a POI. This class replaces the old VgMapModule::VgPlaceDescriptor.

This structure contains POI information that can be used to construct an appropriate viewpoint for a POI

// Set the viewpoint of the camera to look at a POI (e.g. a shop, a hall, lobby...)
VgMapModule::VgIMapModule* lMapModule = (VgMapModule::VgIMapModule*)mVgApplication->editModuleManager()->queryModule("Map");
VgMapModule::VgPOIDescriptor lPOIDescriptor;
if ( lMapModule && lMapModule->queryPOIDescriptor("vg-start-position", lPOIDescriptor))
{
   VgEngine::VgICamera* lCamera = mVgApplication->editEngine()->editCamera();
   double lCameraPitch = lCamera->getPitch();

   const VgMapModule::VgPOIDescriptor::PositionVector& lBoundingPositions = lPOIDescriptor.mBoundingPositions;

   VgEngine::VgIViewPoint lStartViewpoint = lCamera->getViewpoint();
   lStartViewpoint.mPosition.mZOrAltitude = 0.0;
   lCamera->setPosition(lStartViewpoint.mPosition);

   int padding = 30; // 30 pixels of padding all around
   VgEngine::VgIViewPoint lViewpoint = lCamera->getViewpointFromPositions(lBoundingPositions,
                                                                       padding, padding, padding, padding, 
                                                                       lCameraPitch, lPOIDescriptor.mHeading);
   lCamera->setViewpoint(lViewpoint);
}

Version

2.1.3

See also

VgEngine::VgICamera::getViewpointFromPositions

Member Data Documentation

std::vector< VgEngine::VgPosition > VgMapModule::VgPOIDescriptor::mBoundingPositions

Positions that bound the POI. In conjunction with mHeading, this can be used with VgEngine::VgICamera::getViewpointFromPositions to calculate a viewpoint where the whole POI is visible, for example a building lobby. It contains a concatenation of all the POI's footprints/polygons.

Note

Do not use these positions to compute geofences, as they are a concatenation of all footprints and not single polygons.

VgEngine::VgPosition VgMapModule::VgPOIDescriptor::mCenter

Center of interest or of focus

double VgMapModule::VgPOIDescriptor::mHeading

Heading in degrees, can be used to understand the orientation of a POI

double VgMapModule::VgPOIDescriptor::mHeight

Height relative to floor of POI.

std::string VgMapModule::VgPOIDescriptor::mLayerName

The floor (which must correspond with one of the VgEngine::VgLayer::getName from VgEngine::VgLayerManager::getLayers) with which to associate the place object.

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The documentation for this struct was generated from the following file:

• VgPOIDescriptor.h