mdlIDataMember TestExpression

Tests the evaluation of an expression without re-evaluating the entire model.

Syntax

mdlIDataMember_handle TestExpression

Application

MotionView Tcl Modify

Description

This command tests the evaluation of an expression without re-evaluating the entire model.

Example

To test the expression specified for the point’s y value:

Note: Load the slider_crank.mdl before running the example code below.

hwi OpenStack
hwi GetSessionHandle mySessionName 
mySessionName GetProjectHandle myProjectName 
set activePageNum [myProjectName GetActivePage]
myProjectName GetPageHandle myPageName $activePageNum
set activeWinNum [myPageName GetActiveWindow]
myPageName GetWindowHandle myWindowName $activeWinNum
myWindowName GetClientHandle myClientName 
myClientName GetModelHandle myModelName 
myModelName GetChildHandle point_handle p_conrod_cg0
point_handle GetChildHandle myhandle y
myhandle SetRawExpression  "3/0"
myhandle TestExpression
myhandle ReleaseHandle
point_handle ReleaseHandle
myModelName ReleaseHandle
myClientName ReleaseHandle
myWindowName ReleaseHandle
myPageName ReleaseHandle
myProjectName ReleaseHandle
mySessionName ReleaseHandle
hwi CloseStack

Errors

If successful, the evaluated value of the expression is returned. Otherwise, a description of the error in the expression syntax is returned.