Function rsvg::rect::rect_to_transform

pub fn rect_to_transform(
    rect: &Option<Rect>,
    units: CoordUnits
) -> Result<Transform, ()>

Creates a transform to map to a rectangle.

The rectangle is an Option<Rect> to indicate the possibility that there is no bounding box from where the rectangle could be obtained.

This depends on a CoordUnits parameter. When this is CoordUnits::ObjectBoundingBox, the bounding box must not be empty, since the calling code would then not have a usable size to work with. In that case, if the bbox is empty, this function returns Err(()).

Usually calling code can simply ignore the action it was about to take if this function returns an error.