hwI3DViewCtrl CircleZoom

Allows you to select a region to zoom into.


viewControl_handle CircleZoom


HyperView Tcl Modify


This command allows you to zoom into the model by drawing a window around a particular region. When the command is first executed, it waits for the cursor to move into the graphics area. The left mouse button can then be pressed and moved to draw a window around the region to zoom in on. Moving the mouse outside of the graphics area cancels the operation.


hwi OpenStack;
    variable t [expr rand()];

    catch {
        hwi GetSessionHandle sess$t;
        sess$t GetProjectHandle proj$t;
        proj$t GetPageHandle page$t [proj$t GetActivePage];
        page$t GetWindowHandle win1$t 1;
        page$t GetWindowHandle win2$t 2;
        win1$t GetViewControlHandle vc1$t;
        vc1$t CircleZoom;
    hwi CloseStack;


This command should not return any errors.