public void updateDragInformation()
{
// Find the mouse point in local space
MPoint localMousePoint = new MPoint();
MVector localMouseDirection = new MVector();
try
{
mouseRay(localMousePoint, localMouseDirection);
}
catch (System.Exception)
{
return;
}
// Find the intersection of the mouse point with the
// manip plane
MPoint mouseIntersectionWithManipPlane = new MPoint();
if (!plane.intersect(localMousePoint, localMouseDirection, ref mouseIntersectionWithManipPlane))
{
return;
}
mousePointGlName.assign(mouseIntersectionWithManipPlane);
uint active = 0;
try
{
glActiveName(ref active);
}
catch (System.Exception)
{
return;
}
if (active == lineName && active != 0)
{
lineMath line = new lineMath();
// Find a vector on the plane
MPoint a = lineGeometry.topPoint();
MPoint b = lineGeometry.bottomPoint();
MVector vab = a.minus(b);
// Define line with a point and a vector on the plane
line.setLine(a, vab);
MPoint cpt = new MPoint();
// Find the closest point so that we can get the
// delta change of the mouse in local space
if (line.closestPoint(mousePointGlName, ref cpt))
{
mousePointGlName.x -= cpt.x;
mousePointGlName.y -= cpt.y;
mousePointGlName.z -= cpt.z;
}
}
}
public void updateDragInformation()
{
// Find the mouse point in local space
MPoint localMousePoint = new MPoint();
MVector localMouseDirection = new MVector();
try
{
mouseRay(localMousePoint, localMouseDirection);
}
catch (System.Exception)
{
return;
}
// Find the intersection of the mouse point with the
// manip plane
MPoint mouseIntersectionWithManipPlane = new MPoint();
if (!plane.intersect(localMousePoint, localMouseDirection, ref mouseIntersectionWithManipPlane))
return;
mousePointGlName.assign(mouseIntersectionWithManipPlane);
uint active = 0;
try
{
glActiveName(ref active);
}
catch (System.Exception)
{
return;
}
if (active == lineName && active != 0)
{
lineMath line = new lineMath();
//
bool rightLine = true;
if (affectTranslate)
rightLine = false;
// Find a vector on the plane
MPoint a = lineGeometry.topPoint(rightLine);
MPoint b = lineGeometry.bottomPoint(rightLine);
MVector vab = a.minus(b);
// Define line with a point and a vector on the plane
line.setLine(a, vab);
MPoint cpt = new MPoint();
// Find the closest point so that we can get the
// delta change of the mouse in local space
if (line.closestPoint(mousePointGlName, ref cpt))
{
mousePointGlName.x -= cpt.x;
mousePointGlName.y -= cpt.y;
mousePointGlName.z -= cpt.z;
}
}
}
