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Editorial Team
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Asked: 2026-05-27T04:59:45+00:00

I am newbie in graphics. I have a panel which I have used to

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I am newbie in graphics. I have a panel which I have used to plot some points. Now I will click anywhere in the panel and I need to find the point which is nearest to the Clicked point. Which is the best way to find that. Could someone help me.

@Yahia Actually i have created a some points which will look like 

. . . .                                                               
. . . .                                                               
. . . .

And now i will click in between those points and i need to find the nearest point from where i clicked and color it different.

The code i used is 

PlotterMap = new Bitmap(this.pnlPlotterMap.Width, this.pnlPlotterMap.Height,     
System.Drawing.Imaging.PixelFormat.Format24bppRgb);                                                  
BufferGraphics = Graphics.FromImage(PlotterMap);     
BufferGraphics.FillEllipse(brush, plcolplot.XPixel1, plcolplot.YPixel1,2,2);
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1 Answer

  1. Editorial Team

    In click event of your panel, pick the point where click has been done. Start creating circles in increasing radius starting with 1 (don’t draw this, just create object n code behind) and try to find out which per-defined point intersect with your circle first.

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