Create stroke inkcanvas from inkpoints

Asked Mar 07 '16 at 17:54

Active Mar 07 '16 at 17:54

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I want to create a stroke from a list of inkpoints , my problem is in the second parameter of the method, the Matrix 3x2. this code I have an exception:

            List<InkPoint> inkpoints = new List<InkPoint>();
            InkStrokeBuilder ink = new InkStrokeBuilder();
            System.Numerics.Matrix3x2 matr= new System.Numerics.Matrix3x2();
            InkStroke stroke = ink.CreateStrokeFromInkPoints(inkpoints,matr);
            inkCanvas.InkPresenter.StrokeContainer.AddStroke(stroke);

the exception:

$exception {"Value does not fall within the expected range."} System.ArgumentException

asked Mar 07 '16 at 17:54

Andrea485

2

Not sure why you're specifying a zero matrix. It would collapse all your points into a singularity. You probably want the identity matrix: `System.Numerics.Matrix3x2.Identity`. – Raymond Chen Mar 07 '16 at 18:07
thanks a lot , you're right!!! – Andrea485 Mar 07 '16 at 18:46

Create stroke inkcanvas from inkpoints

0 Answers0