Drawing circle for 2d form C#.net

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hi,

i have one xml file which contains the longitude and latitude for the ground.

This xml file was generated from Sony gps enabled camera.

As per the xml i have to draw the circle or rectangle in the my 2d screen..

kindly provide few idea to draw things in the 2d form

Thanks
Vijay r

Posted 24-Apr-11 19:59pm

vijayr

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umermhr · Answer 1 · 2013-01-16T22:26:00

Solution 4

C#

e.Graphics.FillEllipse(Brushes.CornflowerBlue, 100, 100, 100, 100);
           e.Graphics.DrawEllipse(Pens.Green, 100, 100, 100, 100);

Posted 16-Jan-13 22:26pm

umermhr

Santoshshrest · Answer 2 · 2011-04-25T00:00:00

Solution 3

inside the paint event of your form just enter the following code...

e.Graphics.FillEllipse(Brushes.CornflowerBlue, 100, 100, 100, 100);
           e.Graphics.DrawEllipse(Pens.Green, 100, 100, 100, 100);

Posted 25-Apr-11 0:00am

Santoshshrest

Sergey Alexandrovich Kryukov · Answer 3 · 2011-04-24T20:08:00

You need to draw in any System.Windows.Forms.Control (including System.Windows.Forms.Form) in the overridden method OnPaint or in the handler of the event Paint. For rendering, use the instance of the class System.Drawing.Graphics taken from the event arguments parameter.

When you need to change the rendered image, just change the data used for rendering and call Control.Invalidate. It will trigger sending Windows message WM_PAINT and firing the event. To improve performance you can use Control.Invalidate methods with parameter (Rectangle or Region) to trigger re-rendering only some part of the scene.

Warning: do not repeat the common mistake — do not use System.Windows.Forms.PictireBox. You can draw on it, but this is absolutely pointless; just an extra level of indirection with loss of performance and no added benefits (except hassles such as those you face in change of size).

—SA