about X/Y rate of GLGridItem when viewport size was changed

[nito]

Hi,

I use GLViewWidget for displaying pointcloud.

The GLViewWidget size is (0, 0, 1000, 600) and has a GLGridItem.

When I changed the viewport of the widget to (0, 100, 800, 600), the griditem's x/y rate seems not to square.

I'd like to get square grid. Does anyone know how to get it?

Thanks, all.