Contents User Forum Source Index APIs by Task APIs by Level Data G3D::_internal::UIGeom Class Reference Piece of 3D geometry that tracks its own 2D projection. More... #include <ThirdPersonManipulator.h> List of all members. Public Member Functions void  computeProjection (RenderDevice *rd) bool  contains (const Vector2 &p, float &nearestDepth, Vector2 &tangent2D, float &projectionW, float lineRadius=9) const void  render (RenderDevice *rd, float lineScale=1.0f)   UIGeom () Public Attributes Array< PolyLine2D >  line2D Array< PolyLine >  line3D Array< Array< float > >  lineDepth Array< Array< float > >  lineW Array< ConvexPolygon2D >  poly2D Array< ConvexPolygon >  poly3D Array< bool >  polyBackfacing Array< float >  polyDepth bool  visible Static Protected Member Functions static Vector3  computeEye (RenderDevice *rd) static Vector3  segmentNormal (const LineSegment &seg, const Vector3 &eye) Protected Attributes bool  m_twoSidedPolys Detailed Description Piece of 3D geometry that tracks its own 2D projection. For use in building 3D clickable widgets using only 2D code. The 2D approach allows the click width around a line to be constant width; it also allows the use of arbitrary projection matrices. However, it has problems at the near plane unlike a ray-cast 3D approach. Constructor & Destructor Documentation G3D::_internal::UIGeom::UIGeom (  )  [inline] Member Function Documentation static Vector3 G3D::_internal::UIGeom::computeEye ( RenderDevice *  rd  )  [static, protected] Returns the object space eye point. void G3D::_internal::UIGeom::computeProjection ( RenderDevice *  rd  )  Computes the 2D positions from the 3D ones using the renderDevice and updates the zOrder. bool G3D::_internal::UIGeom::contains ( const Vector2 &  p, float &  nearestDepth, Vector2 &  tangent2D, float &  projectionW, float  lineRadius = 9   ) const Returns true and sets nearestDepth (on the range 0 = close, 1 = far) if p is in a polygon (or within lineRadius of the nearest line) and the depth of that object is less than nearestDepth, otherwise returns false. depth values are approximate. Parameters: tangent2D  Returns the projected tangent (unit length 3D vector projected into 2D, which then has non-unit length) to the selected location if it was a line; undefined if it was a plane. projectionW  Returns the if close to a line. void G3D::_internal::UIGeom::render ( RenderDevice *  rd, float  lineScale = 1.0f   ) Render in 3D using the current blending mode, etc. Line normals are set to face towards the camera, perpendicular to the line. static Vector3 G3D::_internal::UIGeom::segmentNormal ( const LineSegment &  seg, const Vector3 &  eye   ) [static, protected] Returns the normal to a line segment. Member Data Documentation Array<PolyLine2D> G3D::_internal::UIGeom::line2D Recomputed from 3D in the computeProjection method. Array<PolyLine> G3D::_internal::UIGeom::line3D Relative to the "current" object to world matrix. Array< Array<float> > G3D::_internal::UIGeom::lineDepth Array< Array<float> > G3D::_internal::UIGeom::lineW bool G3D::_internal::UIGeom::m_twoSidedPolys [protected] If true, backface polygons are tested for mouse clicks. Array<ConvexPolygon2D> G3D::_internal::UIGeom::poly2D Recomputed from 3D in the computeProjection method. Array<ConvexPolygon> G3D::_internal::UIGeom::poly3D Relative to the "current" object to world matrix. Array<bool> G3D::_internal::UIGeom::polyBackfacing If last time we rendered the poly3D was backwards. Array< float > G3D::_internal::UIGeom::polyDepth bool G3D::_internal::UIGeom::visible The documentation for this class was generated from the following file: ThirdPersonManipulator.h Hosted by