BaseCameraPoint3DTo2D(Point3D, Size) Method

public Point Point3DTo2D(
	Point3D point3D,
	Size viewportSize
)

Parameters

point3D  Point3D

Original Point3D

viewportSize  Size

Size of the Viewport3D

Return Value

Point3DTo2D converts a Point3D to the Point 2D on the screen with custom Viewport3D size (no need that this Camera class is connected to real Viewport3D)

The matrix to convert 3D point to 2D point is calculated from the used Ab3d.Camera. The matrix value is cached and is only recalculated when the camera is changed.

If the matrix to convert 3D point to 2D point cannot be calculated (for example if TargetViewport3D is not set), the returned point will be Point(double.NaN, double.NaN).

With this method you can convert 3D coordinates to 2D space without creating read Viewport3D and attaching the camera to it. The following example shows how to do that:

Example

var targetPositionCamera = new Ab3d.Cameras.TargetPositionCamera()
{
    Heading = 30,
    Attitude = -20,
    Distance = 200
};

var point2D = targetPositionCamera.Point3DTo2D(new Point3D(100, 100, 100), new Size(200, 100));

Reference