OpenCASCADE display objects are set to not selectable.

Aug 11, 2023#OpenCASCADE220

AI Translation

This post is translated from Chinese into English through AI.View Original

AI-generated summary

The given code is a selection mode function that returns an integer value based on the type of shape. The code uses a switch statement to determine the selection mode based on the shape type. For example, if the shape type is TopAbs_EDGE, the selection mode will be 2. The code also includes an example of how to use the selection mode function with the AIS_Shape class. Additionally, it mentions that setting the selection mode to -1 when calling the Display function in the AIS_InteractiveContext class will make the object unselectable.

Original selection mode code:

static Standard_Integer SelectionMode (const TopAbs_ShapeEnum theShapeType)
{
    switch (theShapeType)
    {
    case TopAbs_VERTEX:    return 1;
    case TopAbs_EDGE:      return 2;
    case TopAbs_WIRE:      return 3;
    case TopAbs_FACE:      return 4;
    case TopAbs_SHELL:     return 5;
    case TopAbs_SOLID:     return 6;
    case TopAbs_COMPSOLID: return 7;
    case TopAbs_COMPOUND:  return 8;
    case TopAbs_SHAPE:     return 0;
    }
    return 0;
}

For example: AIS_Shape::SelectionMode(TopAbs_EDGE) selection mode is set to edges.

When calling AIS_InteractiveContext::Display, setting -1 will make the object unselectable.

myContext->Display(theObjects,
                    AIS_Shaded,
                    selectable ? AIS_Shape::SelectionMode(TopAbs_EDGE) : -1,
                    Standard_True);