Golang Rect3.Union Examples

Example #1

File: object.go Project: pombredanne/rand

// Bounds implements the Spatial interface. The returned bounding box takes
// into account all of the mesh's bounding boxes, transformed into world space.
//
// This method properly read-locks the object.
func (o *Object) Bounds() math.Rect3 {
	var b math.Rect3
	o.RLock()
	for i, m := range o.Meshes {
		if i == 0 {
			b = m.Bounds()
		} else {
			b = b.Union(m.Bounds())
		}
	}
	if o.Transform != nil {
		b.Min = o.Transform.ConvertPos(b.Min, LocalToWorld)
		b.Max = o.Transform.ConvertPos(b.Max, LocalToWorld)
		b = b.Union(b)
	}
	o.RUnlock()
	return b
}