poIImagePlane SetCullAngle

Sets the culling angle setting for the image plane.

Syntax

Imageplane_handle SetCullAngle deg

Application

HyperView Tcl Modify

Description

When the image plane mode is 3D, HyperView compares the camera view angle to the image plane’s surface normal. When the difference is greater than the cull angle, HyperView applies transparency to the image plane. The greater the angle difference, the more transparent it becomes. The transparency effect is also multiplied by the Alpha property of the image plane. This command sets/changes the current cull angle value.

Inputs

deg: The new culling angle in degrees.

Example

To create two image planes, and then set/change the cull angle for one of them:

hwi OpenStack
if {[catch {
    hwi GetSessionHandle session_handle
    session_handle GetProjectHandle project_handle
    project_handle GetPageHandle page_handle [project_handle GetActivePage]
    page_handle GetWindowHandle window_handle [page_handle GetActiveWindow]
    window_handle GetClientHandle client_handle
    client_handle GetImagePlaneCtrlHandle ipc_handle
    set ipid1 [ipc_handle AddImagePlane Logo1]
    ipc_handle GetImagePlaneHandle imageplane_handle $ipid1
    imageplane_handle SetFileName g:/samples2/VideoOverlay/logo1.jpg
    imageplane_handle SetMode background
    imageplane_handle ReleaseHandle
    set ipid2 [ipc_handle AddImagePlane Video1]
    ipc_handle GetImagePlaneHandle imageplane_handle $ipid2
    imageplane_handle SetFileName g:/samples2/VideoOverlay/video1.jpg
    imageplane_handle SetMode background
    imageplane_handle ReleaseHandle

    ipc_handle GetImagePlaneHandle imageplane_handle $ipid1
    imageplane_handle SetLabel "Company Logo";
    imageplane_handle SetAlpha 80
    imageplane_handle SetMode foreground
    imageplane_handle SetAssociatedModelID 1
    imageplane_handle SetCullAngle 45
    imageplane_handle SetBackFaceVisibility true
    imageplane_handle SetCrop 0.2 0.2 0.8 0.8
    imageplane_handle SetStretchToFit false
    imageplane_handle SetMaintainAspectRatio false
    client_handle Draw
} result]} {
    global errorInfo;
    puts stderr $result;
    puts "[session_handle GetError]";
    puts stderr "*** Tcl TRACE ***";
    puts stderr $errorInfo;
} else {
    puts "No errors.";
    puts "Warnings: ";
    puts "    [session_handle GetError]";
}

hwi CloseStack

Errors

Returns HW_InvalidHandle if the image plane handle is invalid.