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Asked: 2026-05-12T23:39:20+00:00

I have an array of Point variables. When drawn using Graphics.DrawLine , they create

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I have an array of Point variables. When drawn using Graphics.DrawLine, they create the expected image. My problem is that 0,0 is actually the center of the image (not the top left of my canvas as expected. My X and Y coordinates in the Points can contain negative numbers.

When I try to draw this to my Image, of course I get 1/4 of the total image as the remainder is drawn outside the bounds of my canvas. How do I center this drawing correctly onto my canvas?

I know the dimensions of the image I want to draw. I know where 0,0 is (width / 2, height / 2).

I suppose I can translate each and every single Point, but that seems like the hard way to do this.

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  1. Editorial Team

    TranslateTransform() can map coordinates for you if you setup a transformation during your drawing handlers.

    Graphics.TranslateTransform @ MSDN

    Or, map your coordinates by adding half the width and half the height of the desired viewing area to each coordinate.

    Also, you may need to scale your coordinates. You may use Graphics.ScaleTransform to do this.

    Graphics.ScaleTransform @ MSDN

    If you don’t wish to use this, then you should divide X coordinates by the percent amount you wish to stretch the width, and divide Y coordinates by the percent amount you wish to stretch the height. This gives us 1 for 100%, 1.2 for 120%, 0.8 for 80%, etc.

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