Click here to Skip to main content
15,921,793 members
Articles / Programming Languages / C#

Graph control

Rate me:
Please Sign up or sign in to vote.
2.33/5 (6 votes)
15 Nov 2008GPL3 28.3K   1K   15   4
this controls allows to draw function graph.

Image 1


There are many times when we need simple tool for draw function graph. And the best solution for this task is a control which include all logic for drawing with simple interface for loading data. So, one alternative of such control represens in this article.

Let's begin 

Inerface of this control is very simple. It's include properties for set bounds of drawing box and function to load data for build graphic:

public double MinX;
public double MaxX;
public double MinY;
public double MaxY;

public void AddObject(List<PointF> coords<pointf>, Color c, VisualizationType type); 

By the function AddObject we can load array of points which will draw with specified color c and can have one of three types visualization: 1) continous line 2) points 3) daggers. We can load many objects for draw at a time. When we finished loading of object we simple call function DrawGraph() and all our objects appear on the screen. For use this control you must add library to your solution and add control from toolBox on your form. Next code show how you can use this control for drawing a graph:  

        private double function (double x)
            double res = Math.Sin(x);
            return res;
        private void btnDraw_Click(object sender, EventArgs e)
            List<PointF> points = new List<PointF>();<pointf><pointf>
            for (double x = 0; x < 10; x += 0.1)
                points.Add(new PointF((float) x, (float) function(x)));
            ucGraphSolution1.AddObject(points, Color.Red,VisualizationType.DAGGERS);
</pointf> </pointf> 
Also you can enlarge scale by the mouse selection and decrease scale by the mouse double click. Good luck!


This article, along with any associated source code and files, is licensed under The GNU General Public License (GPLv3)

Written By
Software Developer (Senior)
Russian Federation Russian Federation
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.

Comments and Discussions

GeneralMy vote of 5 Pin
Manoj Kumar Choubey16-Mar-12 3:57
professionalManoj Kumar Choubey16-Mar-12 3:57 
GeneralMy vote of 1 Pin
Biswas, Sumit4-Aug-09 20:51
Biswas, Sumit4-Aug-09 20:51 
GeneralCorrupt Download Pin
MoloneyPat15-Nov-08 13:10
MoloneyPat15-Nov-08 13:10 
GeneralRe: Corrupt Download Pin
Slezko S.G.15-Nov-08 14:30
Slezko S.G.15-Nov-08 14:30 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.