public bool Rotating(Point worldPosition)
{
if (EditMode != EditMode.Rotate || _rotateInfo.Feature == null)
{
return(false);
}
var previousVector = _rotateInfo.Center - _rotateInfo.PreviousPosition;
var currentVector = _rotateInfo.Center - worldPosition;
var degrees = AngleBetween(currentVector, previousVector);
Geomorpher.Rotate(_rotateInfo.Feature.Geometry, degrees, _rotateInfo.Center);
_rotateInfo.PreviousPosition = worldPosition;
_rotateInfo.Feature.RenderedGeometry.Clear();
Layer.DataHasChanged();
return(true); // to signal pan lock
}
public bool Scaling(Point worldPosition)
{
if (EditMode != EditMode.Scale || _scaleInfo.Feature == null)
{
return(false);
}
var scale =
_scaleInfo.Center.Distance(worldPosition) /
_scaleInfo.Center.Distance(_scaleInfo.PreviousPosition);
Geomorpher.Scale(_scaleInfo.Feature.Geometry, scale, _scaleInfo.Center);
_scaleInfo.PreviousPosition = worldPosition;
_scaleInfo.Feature.RenderedGeometry.Clear();
Layer.DataHasChanged();
return(true); // to signal pan lock
}