draw a curve on a X-Y axis

[Chi Tang]

Hi,

I need to draw some curves on a X-Y axis which is on my windows forms' tab
control. Do I need to draw the X and Y axis first? How to specify a point
on the tab? What GDI+ I need to use or any samples available? Thanks a lot
for any help.

CT

 

[Morten Wennevik]

Hi Chi Tang,

Well, there is Graphics.DrawCurve and it includes a small sample.
Unless you want the upper left corner to be origo you need to
translate each point in relation to the X-Y axis.

http://msdn.microsoft.com/library/d...fsystemdrawinggraphicsclassdrawcurvetopic.asp

If you draw an axis on the tab, each point on the curve will have to
move equivalent of the difference between origo of that axis and the
left border of the control and between origo and the top border of
the control.

 

[Bob Powell [MVP]]

The GDI+ FAQ has an article on how to draw text on a reversed Y axis. This
includes demo code to draw the axis and a chart in the more intuitive
origin-at-the-bottom mode.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

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http://www.bobpowell.net/faqmain.htm

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