?
Solved

Drawing to a Picture

Posted on 2003-12-08
10
Medium Priority
?
599 Views
Last Modified: 2010-04-16
This may sound kind of stupid. Anyway.

I need to do some test data, and so I wanted to make 1000 images with numbers in them. So I figured It would be easier to write a program to just use a Random function to write a bunch of numbers and save them as an image. . . however I'm somewhat perplexed on how to draw to an actual file. I can draw to the form or a picturebox just fine .....but I think I might have just answered my own question with the picturebox. Well, If anyone has any suggestions please let me know..
0
Comment
Question by:derekthornton
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 5
10 Comments
 
LVL 7

Accepted Solution

by:
TransBind earned 2000 total points
ID: 9899113
I didn't compile this so not sure about syntax etc ..., sorry I am at work, but I think thats how u can do it.

        // This example creates a PictureBox control on the form and draws to it.
        // This example assumes that the Form_Load event handling method is
        // connected to the Load event of the form.

       
        private PictureBox pictureBox1 = new PictureBox();
       
        private void Form1_Load(object sender, System.EventArgs e)
        {
            // Dock the PictureBox to the form and set its background to white.
            pictureBox1.Dock = DockStyle.Fill;
            pictureBox1.BackColor = Color.White;
            // Connect the Paint event of the PictureBox to the event handling method.
            pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint);

            // Add the PictureBox control to the Form.
            this.Controls.Add(pictureBox1);
        }

        private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Random R =new Random();

            // Create a local version of the graphics object for the PictureBox.
            Graphics g = e.Graphics;
            //Calling the Next method without any arguments will generate a random number which is greater than or equal to zero and less than the maximum size of int (which i do not pass).

            for(I = 0; I < 1000; I++)
            {
                   // Draw a number on the PictureBox.
            g.DrawString(R.Next().toString(),
             new Font("Arial",10), System.Drawing.Brushes.Blue, new Point(30,30));
            }
         
           
        }
0
 
LVL 7

Expert Comment

by:TransBind
ID: 9899139
Perhaps this will contribute as well.
class MyRandom
{
      public static void Main()
      {
            Random R =new Random();
            int I;
            int MaxLimit = 5000;
            int MinLimit = 1000;
            for(I = 0; I < 10; I++)
            {
                  Console.WriteLine(R.Next(MinLimit,MaxLimit));
            }
      }
}
0
 
LVL 2

Author Comment

by:derekthornton
ID: 9899171
Yes, it works. Can you save a Graphics Object as a File? Or Do I need to save the PictureBox contents each time the loop iterates ( speed isn't an issue here, this is just to create some test data )
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 7

Expert Comment

by:TransBind
ID: 9899210
private void MainForm_Paint(object sender,                             System.Windows.Forms.PaintEventArgs e)
{

 Graphics g = e.Graphics;  
  Random R =new Random();
   for(I = 1; I <= 1000; I++)
          {

MyBitmap = new Bitmap("c:\\image" + I + ".bmp");    
 g.DrawString(R.Next().toString(),
             new Font("Arial",10), System.Drawing.Brushes.Blue, new Point(30,30));
         }
}
0
 
LVL 7

Expert Comment

by:TransBind
ID: 9899218
i guess something like that
0
 
LVL 2

Author Comment

by:derekthornton
ID: 9899245
Hrnm.. That doesn't seem to work. It is throwing me an exception at the Application.Run Method in my Main Class..
0
 
LVL 2

Author Comment

by:derekthornton
ID: 9899249
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace WindowsApplication1
{
      /// <summary>
      /// Summary description for Form1.
      /// </summary>
      public class Form1 : System.Windows.Forms.Form
      {
            private System.Windows.Forms.PictureBox pictureBox1;
            /// <summary>
            /// Required designer variable.
            /// </summary>
            private System.ComponentModel.Container components = null;

            public Form1()
            {
                  //
                  // Required for Windows Form Designer support
                  //
                  InitializeComponent();

                  //
                  // TODO: Add any constructor code after InitializeComponent call
                  //
            }

            /// <summary>
            /// Clean up any resources being used.
            /// </summary>
            protected override void Dispose( bool disposing )
            {
                  if( disposing )
                  {
                        if (components != null)
                        {
                              components.Dispose();
                        }
                  }
                  base.Dispose( disposing );
            }

            #region Windows Form Designer generated code
            /// <summary>
            /// Required method for Designer support - do not modify
            /// the contents of this method with the code editor.
            /// </summary>
            private void InitializeComponent()
            {
                  this.pictureBox1 = new System.Windows.Forms.PictureBox();
                  this.SuspendLayout();
                  //
                  // pictureBox1
                  //
                  this.pictureBox1.Location = new System.Drawing.Point(0, 0);
                  this.pictureBox1.Name = "pictureBox1";
                  this.pictureBox1.TabIndex = 0;
                  this.pictureBox1.TabStop = false;
                  this.pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint);
                  //
                  // Form1
                  //
                  this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
                  this.ClientSize = new System.Drawing.Size(292, 266);
                  this.Controls.Add(this.pictureBox1);
                  this.Name = "Form1";
                  this.Text = "Form1";
                  this.Load += new System.EventHandler(this.Form1_Load);
                  this.ResumeLayout(false);

            }
            #endregion

            /// <summary>
            /// The main entry point for the application.
            /// </summary>
            [STAThread]
            static void Main()
            {
                  Application.Run(new Form1());
            }

            private void pictureBox1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
            {
                  Random R =new Random();

                  // Create a local version of the graphics object for the PictureBox.
                  Graphics g = e.Graphics;
                  //Calling the Next method without any arguments will generate a random number which is greater than or equal to zero and less than the maximum size of int (which i do not pass).

                  for(int I = 0; I < 1000; I++)
                  {
                        Bitmap MyBitmap = new Bitmap(@"C:\TestData\Test" + I + "Bmp");
                        // Draw a number on the PictureBox.
                        g.DrawString(R.Next().ToString(),
                              new Font("Arial",10),
                              System.Drawing.Brushes.Blue, new Point(30,30));

                  }
         
            }

            private void Form1_Load(object sender, System.EventArgs e)
            {
                  // Dock the PictureBox to the form and set its background to white.
                  pictureBox1.Dock = DockStyle.Fill;
                  pictureBox1.BackColor = Color.White;
                  // Connect the Paint event of the PictureBox to the event handling method.
                  pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.pictureBox1_Paint);

                  // Add the PictureBox control to the Form.
                  this.Controls.Add(pictureBox1);
            }
      }
}

This is what I've got so far.
0
 
LVL 7

Expert Comment

by:TransBind
ID: 9899251
no thats wrong i can already see it
0
 
LVL 2

Author Comment

by:derekthornton
ID: 9899269
Alright. What do you see that isn't right? For some reason it's telling me I'm passing an invalid parameter through the Main Function.
0
 
LVL 2

Author Comment

by:derekthornton
ID: 9899433
Got it! Thanks for the help.
0

Featured Post

Want to be a Web Developer? Get Certified Today!

Enroll in the Certified Web Development Professional course package to learn HTML, Javascript, and PHP. Build a solid foundation to work toward your dream job!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
Real-time is more about the business, not the technology. In day-to-day life, to make real-time decisions like buying or investing, business needs the latest information(e.g. Gold Rate/Stock Rate). Unlike traditional days, you need not wait for a fe…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…
In this video, Percona Solutions Engineer Barrett Chambers discusses some of the basic syntax differences between MySQL and MongoDB. To learn more check out our webinar on MongoDB administration for MySQL DBA: https://www.percona.com/resources/we…

765 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question