protected override void SubViewportDraw(ViewportDraw vd)
{
Teigha.GraphicsInterface.Viewport vp = vd.Viewport;
Matrix3d mat = vp.WorldToEyeTransform;
Point3d p0 = mat * m_pts[0];
Point3d p2 = mat * m_pts[2];
m_pts[1] = new Point3d(p0.X, p2.Y, p2.Z);
m_pts[3] = new Point3d(p2.X, p0.Y, p2.Z);
mat = vp.EyeToWorldTransform;
m_pts[1] = m_pts[1].TransformBy(mat);
m_pts[3] = m_pts[3].TransformBy(mat);
vd.SubEntityTraits.FillType = FillType.FillNever;
vd.Geometry.Polygon(m_pts);
vp = null;
}
protected override void SubViewportDraw(ViewportDraw vd)
{
Point3d ptComputed = new Point3d();
Point3d pDrawAtDrag;
if (computeDragPoint(ref ptComputed))
{
pDrawAtDrag = ptComputed;
}
using (Teigha.GraphicsInterface.Viewport pViewport = vd.Viewport)
{
if (m_pOwner.Model == null || m_pOwner.Model.RenderType.GetHashCode() < 2 /*Teigha.GraphicsSystem.RenderType.kDirect*/)
{
// Commented since renderTypes implemented, so no need to translate objects for kDirect renderType
Vector3d vpDirection = pViewport.ViewDirection;
Point3d vpOrigin = pViewport.CameraLocation;
Vector3d vecTmp = ptComputed - vpOrigin;
double ptLength = vecTmp.DotProduct(vpDirection);
ptComputed -= vpDirection * ptLength;
}
Point2d ptDim = pViewport.GetNumPixelsInUnitSquare(m_point);
Vector3d v = new Vector3d(m_pOwner.GRIPSIZE / ptDim.X, 0, 0);
v = v.TransformBy(pViewport.WorldToEyeTransform);
double dGripSize = v.Length;
Point3d ptOnScreen = ptComputed.TransformBy(pViewport.WorldToEyeTransform);
using (SubEntityTraits pSubTraits = vd.SubEntityTraits)
{
pSubTraits.FillType = FillType.FillAlways;
}
Point3dCollection ptColl = new Point3dCollection();
ptColl.Add(new Point3d(ptOnScreen.X - dGripSize, ptOnScreen.Y - dGripSize, ptOnScreen.Z));
ptColl.Add(new Point3d(ptOnScreen.X + dGripSize, ptOnScreen.Y - dGripSize, ptOnScreen.Z));
ptColl.Add(new Point3d(ptOnScreen.X + dGripSize, ptOnScreen.Y + dGripSize, ptOnScreen.Z));
ptColl.Add(new Point3d(ptOnScreen.X - dGripSize, ptOnScreen.Y + dGripSize, ptOnScreen.Z));
vd.Geometry.PolygonEye(ptColl);
}
}
// this more informative callback may be used to implement subentities selection
public override SelectionReactorResult Selected(PathNode pthNode, Teigha.GraphicsInterface.Viewport viewInfo)
{
return(SelectionReactorResult.NotImplemented);
}