poIImagePlane SetMaintainAspectRatio
Sets the value of the Maintain Aspect Ratio flag for the image plane.
Syntax
Imageplane_handle SetMaintainAspectRatio val
Application
HyperView Tcl Modify
Description
When image planes are in foreground or background mode, setting this flag causes HyperView to maintain the original image or video’s aspect ratio. Resizing the image plane using the manipulator will continue to maintain the image aspect ration. If the flag is cleared, the image plane can be stretched without regard to aspect ratio. This command controls the value of the flag for the image plane.
Inputs
- val
- True or false to maintain the aspect ratio (or not).
Example
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.