public Tuple<ViewOrientation3D, double, string, string> GetViewCoordinates(Document doc, VisualizationInfo viewport)
{
string type = ""; //change if i force ortho mode
double zoom = 0; //fov or worldscale
XYZ CameraDirection = new XYZ();
XYZ CameraUpVector = new XYZ();
XYZ CameraViewPoint = new XYZ();
//retrive the force perspective value
// IS ORTHOGONAL
if (viewport.OrthogonalCamera != null)
{
if (viewport.OrthogonalCamera.ViewToWorldScale == null || viewport.OrthogonalCamera.CameraViewPoint == null || viewport.OrthogonalCamera.CameraUpVector == null || viewport.OrthogonalCamera.CameraDirection == null)
return null;
type = "OrthogonalCamera";
zoom = UnitUtils.ConvertToInternalUnits(viewport.OrthogonalCamera.ViewToWorldScale, DisplayUnitType.DUT_METERS);
CameraDirection = GetXYZ(viewport.OrthogonalCamera.CameraDirection.X, viewport.OrthogonalCamera.CameraDirection.Y, viewport.OrthogonalCamera.CameraDirection.Z);
CameraUpVector = GetXYZ(viewport.OrthogonalCamera.CameraUpVector.X, viewport.OrthogonalCamera.CameraUpVector.Y, viewport.OrthogonalCamera.CameraUpVector.Z);
CameraViewPoint = GetXYZ(viewport.OrthogonalCamera.CameraViewPoint.X, viewport.OrthogonalCamera.CameraViewPoint.Y, viewport.OrthogonalCamera.CameraViewPoint.Z);
}
else if (viewport.PerspectiveCamera != null)
{
if (viewport.PerspectiveCamera.FieldOfView == null || viewport.PerspectiveCamera.CameraViewPoint == null || viewport.PerspectiveCamera.CameraUpVector == null || viewport.PerspectiveCamera.CameraDirection == null)
return null;
type = "PerspectiveCamera";
zoom = viewport.PerspectiveCamera.FieldOfView;
double z1 = 18 / Math.Tan(zoom / 2 * Math.PI / 180);//focale 1
double z = 18 / Math.Tan(25 / 2 * Math.PI / 180);//focale, da controllare il 18, vedi PDF
double factor = z1 - z;
CameraDirection = GetXYZ(viewport.PerspectiveCamera.CameraDirection.X, viewport.PerspectiveCamera.CameraDirection.Y, viewport.PerspectiveCamera.CameraDirection.Z);
CameraUpVector = GetXYZ(viewport.PerspectiveCamera.CameraUpVector.X, viewport.PerspectiveCamera.CameraUpVector.Y, viewport.PerspectiveCamera.CameraUpVector.Z);
XYZ oldO = GetXYZ(viewport.PerspectiveCamera.CameraViewPoint.X, viewport.PerspectiveCamera.CameraViewPoint.Y, viewport.PerspectiveCamera.CameraViewPoint.Z);
CameraViewPoint = (oldO.Subtract(CameraDirection.Divide(factor)));
}
else
return null;
// CHAGE VALUES ACCORDING TO BASEPOINT
//THIS WAS the one with DOC
ViewOrientation3D orient3d = ConvertBasePoint(CameraViewPoint, CameraDirection, CameraUpVector, true);
return new Tuple<ViewOrientation3D, double, string, string>(orient3d, zoom, type, "New View");
}
