poI3DViewCtrl GetPrincipalPointOffset

Gets the principal point offset of a stored view.

Syntax

poI3DViewCtrl_handle GetPrincipalPointOffsetname

Application

HyperView Tcl Query

Description

This command retrieves a string consisting of an x and y offset. These values represent a shift of the view horizontally and vertically in the window.

Inputs

name
If specified, the offset of the view with that name will be returned. Otherwise, the current view’s offset will be returned.

Example

Get the principal point offset of a view named “View 1”:
hwi OpenStack
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 GetViewControlHandle view_handle
view_handle GetPrincipalPointOffset “View 1”
hwi CloseStack

Error

Returns HW_InvalidHandle if the view handle is invalid.

Returns HW_InvalidArgs if the named view does not exist.