void MapTool::
selectShape(const Geometry::Point<double,3>& pos)
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
Shape* oldShape = curShape;
ShapePtrs shapes = getShapes();
double threshold = 1.0 / Vrui::getNavigationTransformation().getScaling();
threshold *= mapMan->getSelectDistance();
bool noShapeSelected = true;
for (ShapePtrs::iterator it=shapes.begin(); it!=shapes.end(); ++it)
{
double distance;
Shape::ControlId control = (*it)->select(pos, distance);
if (control!=Shape::BAD_ID && distance<=threshold)
{
curShape = *it;
threshold = distance;
noShapeSelected = false;
}
}
if (noShapeSelected && curShape!=NULL)
unselectShape(curShape, curControl);
//inform the manager that the active shape has changed
if (curShape != oldShape)
mapMan->updateActiveShape(toolId);
}
void MapTool::
selectControl(const Geometry::Point<double,3>& pos)
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
assert(curShape != NULL);
curControl = Shape::BAD_ID;
double distance;
Shape::ControlId control = curShape->select(pos, distance,
mapMan->getPointSelectionBias());
if (control == Shape::BAD_ID)
return;
double threshold = 1.0 / Vrui::getNavigationTransformation().getScaling();
threshold *= mapMan->getSelectDistance();
if (distance > threshold)
return;
curControl = control;
}
