IEnumerator <Ctrl.IOperation> DragPlane(Graphics.IView view, MouseEventArgs e)
{
var plane = this.GetQuadPlanes()[_highlightIndex];
var sphere = _docviews.WorldDocumentScene.BoundingSphere;
var range = new Hisui.Geom.Range(-sphere.Radius, sphere.Radius);
var z0 = range.ParamToValue(this.Position);
var eyeshot1 = view.Camera.GetEyeshotLine(e.Location);
var y1 = GetIntersection(plane, eyeshot1).y;
var up = new Ctrl.LButtonUp(view.Events);
up.MouseMove += (ss, ee) =>
{
var eyeshot2 = view.Camera.GetEyeshotLine(ee.Location);
var z = z0 + GetIntersection(plane, eyeshot2).y - y1;
this.Position = range.ValueToParam(z);
view.Invalidate();
};
yield return(up);
view.Invalidate();
}
IEnumerator<Ctrl.IOperation> DragPlane( Graphics.IView view, MouseEventArgs e )
{
var plane = this.GetQuadPlanes()[_highlightIndex];
var sphere = _docviews.WorldDocumentScene.BoundingSphere;
var range = new Hisui.Geom.Range( -sphere.Radius, sphere.Radius );
var z0 = range.ParamToValue( this.Position );
var eyeshot1 = view.Camera.GetEyeshotLine( e.Location );
var y1 = GetIntersection( plane, eyeshot1 ).y;
var up = new Ctrl.LButtonUp( view.Events );
up.MouseMove += ( ss, ee ) =>
{
var eyeshot2 = view.Camera.GetEyeshotLine( ee.Location );
var z = z0 + GetIntersection( plane, eyeshot2 ).y - y1;
this.Position = range.ValueToParam( z );
view.Invalidate();
};
yield return up;
view.Invalidate();
}
