Mon, 09/09/2024 - 11:37
Hello team.
I have a very strange problem and I really don't know how to fix it.
I didn't use standard dimensions and created my custom ones because I have some needs that dimensions don't provide.
To define an angle dimension, I created some lines using a custom AIS object that have, for parent, an AIX_TextLabel.
This label has an angle and a vertical alignement that I calculate to ensure it's always inside the arc.
According to the camera direction, this vertical alignement may change, but when I change it, the label is not always updated as needed.
In the attached picture, I show the scenario:
1 - The label is well placed with VAlign = Top.
2 - The camera direction change, the VAlign is updated with VAlign = Bottom => the valign is not considered... If I move the camera a little, it has no effect.
3 - I place the mouse cursor on the label to highlight it => the highlighted label is well placed.
4 - At this moment, I move the camera a little => the label replace itself at the expected position.
After valign is changed, I use myLabel->SetToUpdate().
I also tried myLabel->InteractiveContext()->CurrentViewer()->Invalidate() => no more success.
What am I missing ? I really don't understand.
Thank you very much for your help.
Tue, 09/10/2024 - 13:03
SetToUpdate()just marks presentation for updating, but doesn't actually recomputes anything. You'll need to callAIS_IntrractiveContext::Display()(or similar) somewhere later on in the logic to have effect. But within described logic it is unclear where it is called, if called at all.Tue, 09/10/2024 - 13:38
What is strange is that if when I call myLabel.SetAngle(newAngle), the label effectively updates with the new angle directly in the 3D view.
Anyway, I now use AIS_IntrractiveContext::Redisplay and it's much better.
Thank you for your answer.