CODEWITHSUNDEEP
windows-phone-7rotationcoordinatespolygontransformation
user751852
user751852

Reputation: 31

Find Polygon Coordinates WP7

After doing rotating and translating using CompositeTransform. The coordinates for the shapes remain the same in both messagebox.

Messagebox.Show(Convert.ToString(T1Shape.Points[i].X)) ;

initialAngle = transform.Rotation;
initialScale = transform.ScaleX; 
transform.TranslateY = -150;
transform.TranslateX = 200;

Messagebox.Show(Convert.ToString(T1Shape.Points[i].X)) ;

How do i find out the coordinates of the polygon on the canvas or after transformation?

Thanks for your help.

Upvotes: 3

Views: 496

Answers (3)

keyboardP
keyboardP

Reputation: 69372

You simply get the position of the UIElement relative to 0,0 (assuming you want the standard positions). The translation position is only relative to itself and won't bring back the new position of the polygon itself. Therefore, this should do it:

var gtransform = myPolygon.TransformToVisual(Application.Current.RootVisual as UIElement);
Point position = gtransform.Transform(new Point(0, 0));

You can then use position.X and position.Y to get the X and Y positions respectively.

Upvotes: 0

obenjiro
obenjiro

Reputation: 3750

Read this...

Get element position after transform

Upvotes: 1

Emond
Emond

Reputation: 50672

You'll have to apply the transforms by yourself to find out the coordinates after transformation.

Upvotes: 0

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