SoCameraInteractor.DollyInWindow Method

SoCameraInteractorDollyInWindow Method

Moves the camera forward or backward along the view vector to view the region defined by the given corners in normalized screen coordinates.

Namespace: OIV.Inventor.ViewerComponents
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2024.1.1.0 (2024.1.1)

Syntax

public void DollyInWindow(
	SbVec2f topLeftCorner,
	SbVec2f bottomRightCorner,
	SbViewportRegion vpRegion
)

Public Sub DollyInWindow ( 
	topLeftCorner As SbVec2f,
	bottomRightCorner As SbVec2f,
	vpRegion As SbViewportRegion
)

public:
void DollyInWindow(
	SbVec2f topLeftCorner, 
	SbVec2f bottomRightCorner, 
	SbViewportRegion vpRegion
)

member DollyInWindow : 
        topLeftCorner : SbVec2f * 
        bottomRightCorner : SbVec2f * 
        vpRegion : SbViewportRegion -> unit

Remarks

Perspective camera: The visual result is similar to OIV.Inventor.ViewerComponents.SoCameraInteractor.ZoomInWindow(OIV.Inventor.SbVec2f, OIV.Inventor.SbVec2f, OIV.Inventor.SbViewportRegion), but this method changes the camera position (closer or farther away) and focalDisance fields instead of changing the heightAngle. This is the recommended method when using a perspective camera, because it avoids the limitations of very small or very large heightAngle values.
Orthographic camera: This method does nothing because moving the camera closer or farther away does not change the visual result.