save file as atext... - Graphics Discussion Boards

hi..plz i need to know a presice definition about Dihedral angel or reference's name talks about that angel regards
miss maria

Even spelling it 'angel' instead of 'angle', google gave me the definition in seconds.

http://en.wikipedia.org/wiki/Dihedral_angle[^]

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Thanx alot for that website..im Ph.D student i was need info. about that angel..! sorry angle Smile | :)

...angel and angle share something is that: both, they have wings Smile | :)

.. thanx again .... Petrovna

Miss_ petrovna wrote:
im Ph.D student...

I'm not sure you should be openly admitting this.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

hi..U can b sure that im admitted what u wrote openly Smile | :)

..
if u read my question(of subject:help) u'll discover that im simple person..my question was very simple compared to my study..but im always like asking people around me..& im glad 2 give answer about any question asked to me Smile | :)

..
second sentence its very nice. Petrovna

helloo brothers..my program like paint (drawing lines,ellipse,...) the problem that i cant zooooming ..so plz what should i do...
note : iam using v.s (2003)..

Regards;

Try using the Scaling Transformation on the Graphics object. You can reference the method like this: g.ScaleTransform(2.0f,3.0f)

Cheers!
Richard

may your code be error free

i wanna to make aprogram that can draw (ellips , line,..) but i have problems with the save & open ..thats apart of the code:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

namespace graphics_practis
{
///

/// Summary description for Form1.
///

public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Button line;
private System.Windows.Forms.Button square;
private System.Windows.Forms.Button circle;
private System.Windows.Forms.Button ellipse;
private System.Windows.Forms.Button polygon;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button ok;
private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem menuItem1;
private System.Windows.Forms.MenuItem menuItem2;
private System.Windows.Forms.MenuItem menuItem3;
private System.Windows.Forms.MenuItem menuItem4;
private System.Windows.Forms.MenuItem menuItem5;

private BinaryFormatter formtter = new BinaryFormatter();
private FileStream str_reader;

private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;

private System.Windows.Forms.SaveFileDialog saveFileDialog1;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
///

/// Required designer variable.
///

private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
dr = new draw(this.pictureBox1);
}
static void Main()
{
Application.Run(new Form1());
}

private void menuItem4_Click(object sender, System.EventArgs e)
{
//saving
FileStream outStream=File.Create(saveFileDialog1.FileName);//To create text file
Stream streamWriter=new StreamWriter(outStream);
}
private void menuItem3_Click(object sender, System.EventArgs e)
{
//opening
FileStream outStream=File.Create(saveFileDialog1.FileName);//To create text file
StreamWriter streamWriter=new StreamWriter(outStream);
}

the error...>>(cannot implicity convert type 'System.IO.StreamWritet'to 'System.IO.Stream'.

Seriously, stop this project and go pickup a book on beginning C#. You've got some serious "C# and .NET Framework 101" issues to contend with. Just getting something as simple as a StreamWriter to work is giving to fits. Actually doing some drawing is about 10 times more difficult.

Besides, how are you going to save you're image? Are you really going to try to write binary data to a text file??

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

Dave Kreskowiak :how are you going to save you're image? Are you really going to try to write binary data to a text file??..yes .
ok look bro i have changed my saving code and used StreamWriter but its doesnt write binary data to a text file !!!! so when i opened the file the program doesnt display and of my drwaing ( line,ellipse,...)

PLZZZZ..MR DAVE..SEND ME BACK AS SOON AS U CAN..!!
Regards; Smile | :)

mr jets wrote:
Are you really going to try to write binary data to a text file??..yes

Good luck with that!

BTW, the code you posted doesn't write ANYTHING to the file. All it does is open it. It doesn't even close the file when it's "done".

Seriously, you're missing a ton of basic knowledge you MUST have to build applications with.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

thanks for ur effort mr Dave..god bless u bro..but remember i said iam TRYING to save the pic by entering binary data to text ..but i couldnt .. Confused | :confused:

..i just can creat atext but it doesnt recieve any values... D'Oh! | :doh:

comone ..i need ur help mr Dave !!

Well, I would start by never saving an image as a text file.

Next, have you looked as the Save[^] method on the Bitmap class.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

iam so greatfull for ur help mr Dave ..who said i wanna to save image ..okie i just wanna to save my drawings in picturebox (lines,ellips,...) so i can display it again ..like the Paint..
iam waiting ur reply...
Regards ; Sleepy | :zzz:

If you can't get the Stream classes down, this is WAY over your head. Go back to the basics.

There's nothing that does this for you. You have to keep track of the mouse position, where the mouse buttons were held down and where it is now, drawing, calculating the circle, arc, whatever, drawing the new graphic to your bitmap, then updating the image displayed in the PictureBox, ...

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

my new save code is :
System.IO.FileStream fs = new System.IO.FileStream("c:\\testing.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write, System.IO.FileShare.ReadWrite);

// create a stream writer
System.IO.StreamWriter sw = new System.IO.StreamWriter(fs, System.Text.Encoding.ASCII);

// write to file (buffer), where textbox1 is your text box
sw.Write("text");

// flush buffer (so the text really goes into the file)
sw.Flush();

// close stream writer and file
sw.Close();
fs.Close();

The Grand Negus wrote:
That's how we do it.

Try asking me if I care, first.

Next, try opening your image format in any other "paint" application, like Photoshop. Good luck with your proprietary format. Once again, the rest of the world isn't good enough for you.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

The Grand Negus wrote:
Enough to reply, it seems!

You just do this so you can get off pushing people buttons.

The Grand Negus wrote:
We support copy, paste, import, and export operations across "systems".

I said open the file itself, not do some work around to paste it in somewhere else.

The Grand Negus wrote:
Well, you're right about that. Is there nothing you'd like to see improved?

Everything needs improving. I just don't go running around telling the planet about every little thing that irks me and dumping my solutions on them.

Enough said.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

The Grand Negus wrote:

False.

True. You've left a healthy trail of evidence.

The Grand Negus wrote:
seemed to think it was either impossible or impractical

Impossible - no. Impracticle, when the methods to save the image into industry standard formats already exist, most definitly, yes.

The Grand Negus wrote:
It's not expected that every application should be able to open every other application's files.

Nope. Image files tend to be interchangable than most others though.

The Grand Negus wrote:
Can you open a Word document in Paint Shop Pro?

Stay on topic. You know this is BS example.

The Grand Negus wrote:
But why not?

Because I'm not a self-absorbed "I know better than you" schmuck like youself.

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007

good morning ..every one !
ok..i wanna to make aprograme that can draw(ellipse,lines,..) but i have aproblems with saving & opening file ..my save code is:
FileStream outStream=File.Create(saveFileDialog1.FileName);//To create text file
StreamWriter streamWriter=new StreamWriter(outStream);
the error...>>(cannot implicity convert type 'System.IO.StreamWritet'to 'System.IO.Stream'.

plzz send me back...as fast as u can
Regards; Smile | :)

What you need to do is convert your shapes into a binary format. You can the deserialize them back into the original shapes. Here's some code to try.
//Serialize the shapes before saving
FileStream fs = File.Create(strFileName);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(fs, myArray);
fs.Close();

//Deserialize the saved shapes
FileStream fs = File.Open(strFileName, FileMode.Open);
BinaryFormatter bf = new BinaryFormatter();
myArray = (ArrayList)bf.Deserialize(fs, null);
fs.Close();

Cheers!
Richard

may your code be error free

Dear Richard ..thanks for ur interest man..but finally i wrote acode that can save the file at C Drive as atext but while opening the program can read the data from text..but it cant display it ..this valid while drawing LINES ONLY..my problem is:
--------> how can i make the program display the file ( draw the lines..) & how can i do that for ellipse & polygons.

this apart of my code :
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Data;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;

namespace graphics_practis
{
///

/// Summary description for Form1.
///

public class Form1 : System.Windows.Forms.Form
{
Point center,radius,v,start,end,a,b;
ArrayList arraypoint=new ArrayList();
ArrayList arraylist_points=new ArrayList();
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Button line;
private System.Windows.Forms.Button square;
private System.Windows.Forms.Button circle;
private System.Windows.Forms.Button ellipse;
private System.Windows.Forms.Button polygon;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button ok;
private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem menuItem1;
private System.Windows.Forms.MenuItem menuItem2;
private System.Windows.Forms.MenuItem menuItem3;
private System.Windows.Forms.MenuItem menuItem4;
private System.Windows.Forms.MenuItem menuItem5;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.SaveFileDialog saveFileDialog1;
private BinaryFormatter formtter = new BinaryFormatter();
///

/// Required designer variable.
///

private System.ComponentModel.Container components = null;

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

//
// TODO: Add any constructor code after InitializeComponent call
//
dr = new draw(this.pictureBox1);
}

///

/// Clean up any resources being used.
///

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
///

/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///

private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.line = new System.Windows.Forms.Button();
this.square = new System.Windows.Forms.Button();
this.circle = new System.Windows.Forms.Button();
this.ellipse = new System.Windows.Forms.Button();
this.polygon = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.ok = new System.Windows.Forms.Button();
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.menuItem1 = new System.Windows.Forms.MenuItem();
this.menuItem2 = new System.Windows.Forms.MenuItem();
this.menuItem3 = new System.Windows.Forms.MenuItem();
this.menuItem4 = new System.Windows.Forms.MenuItem();
this.menuItem5 = new System.Windows.Forms.MenuItem();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
this.panel1.SuspendLayout();
this.SuspendLayout();
//
// panel1
//
this.panel1.BackColor = System.Drawing.SystemColors.MenuText;
this.panel1.Controls.Add(this.pictureBox1);
this.panel1.Location = new System.Drawing.Point(96, 32);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(416, 296);
this.panel1.TabIndex = 0;
//
// pictureBox1
//
this.pictureBox1.BackColor = System.Drawing.SystemColors.Window;
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(416, 296);
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click);
this.pictureBox1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseUp);
this.pictureBox1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseMove);
this.pictureBox1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown);
//
// line
//
this.line.Location = new System.Drawing.Point(24, 32);
this.line.Name = "line";
this.line.Size = new System.Drawing.Size(40, 23);
this.line.TabIndex = 1;
this.line.Text = "line";
this.line.Click += new System.EventHandler(this.line_Click);
//
// square
//
this.square.Location = new System.Drawing.Point(24, 72);
this.square.Name = "square";
this.square.Size = new System.Drawing.Size(40, 23);
this.square.TabIndex = 2;
this.square.Text = "square";
this.square.Click += new System.EventHandler(this.square_Click);
//
// circle
//
this.circle.Location = new System.Drawing.Point(24, 120);
this.circle.Name = "circle";
this.circle.Size = new System.Drawing.Size(48, 23);
this.circle.TabIndex = 3;
this.circle.Text = "circle";
this.circle.Click += new System.EventHandler(this.circle_Click);
//
// ellipse
//
this.ellipse.Location = new System.Drawing.Point(24, 168);
this.ellipse.Name = "ellipse";
this.ellipse.Size = new System.Drawing.Size(56, 23);
this.ellipse.TabIndex = 4;
this.ellipse.Text = "ellipse";
this.ellipse.Click += new System.EventHandler(this.ellipse_Click);
//
// polygon
//
this.polygon.Location = new System.Drawing.Point(16, 216);
this.polygon.Name = "polygon";
this.polygon.Size = new System.Drawing.Size(56, 23);
this.polygon.TabIndex = 5;
this.polygon.Text = "polygon";
this.polygon.Click += new System.EventHandler(this.polygon_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(8, 264);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(40, 20);
this.textBox1.TabIndex = 6;
this.textBox1.Text = "";
//
// ok
//
this.ok.Location = new System.Drawing.Point(48, 264);
this.ok.Name = "ok";
this.ok.Size = new System.Drawing.Size(32, 23);
this.ok.TabIndex = 7;
this.ok.Text = "ok";
this.ok.Click += new System.EventHandler(this.ok_Click);
//
// mainMenu1
//
this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem1});
//
// menuItem1
//
this.menuItem1.Index = 0;
this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem2,
this.menuItem3,
this.menuItem4,
this.menuItem5});
this.menuItem1.Text = "File";
//
// menuItem2
//
this.menuItem2.Index = 0;
this.menuItem2.Text = "New";
//
// menuItem3
//
this.menuItem3.Index = 1;
this.menuItem3.Text = "Open";
this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
//
// menuItem4
//
this.menuItem4.Index = 2;
this.menuItem4.Text = "Save";
this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
//
// menuItem5
//
this.menuItem5.Index = 3;
this.menuItem5.Text = "Exit";
this.menuItem5.Click += new System.EventHandler(this.menuItem5_Click);
//
// button1
//
this.button1.Location = new System.Drawing.Point(192, 344);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(192, 32);
this.button1.TabIndex = 8;
this.button1.Text = "Change Text Color";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(192, 384);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(192, 32);
this.button2.TabIndex = 9;
this.button2.Text = "Change Background Color";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(528, 445);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.ok);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.polygon);
this.Controls.Add(this.ellipse);
this.Controls.Add(this.circle);
this.Controls.Add(this.square);
this.Controls.Add(this.line);
this.Controls.Add(this.panel1);
this.Menu = this.mainMenu1;
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.panel1.ResumeLayout(false);
this.ResumeLayout(false);

}
#endregion

///

/// The main entry point for the application.
///

[STAThread]
static void Main()
{
Application.Run(new Form1());
}
#region variables

Graphics g ;
Pen p = new Pen(Color.Black,1);
ArrayList lines = new ArrayList();
ArrayList squeres = new ArrayList();
ArrayList circles = new ArrayList();
ArrayList ellipses = new ArrayList();
ArrayList polygons = new ArrayList();
int drawwhat;
int n ;//for the No. of polygon
draw dr;
#endregion
#region mouse down
private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
start.X = e.X;
start.Y = e.Y;
arraylist_points.Add(start);

}
#endregion
#region mouse move
private void pictureBox1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
g = pictureBox1.CreateGraphics();
if(e.Button == MouseButtons.Left)
{
refresh();
DrawReq(new Point(e.X,e.Y));
}
}
#endregion
#region mouse_up
private void pictureBox1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
if(e.Button == MouseButtons.Left)
{

end.X = e.X;
end.Y = e.Y;
DrawReq();
arraylist_points.Add(end);

}
}
#endregion
#region FormLoad
private void Form1_Load(object sender, System.EventArgs e)
{

Bitmap bmp =
new Bitmap(pictureBox1.Width,
pictureBox1.Height);
pictureBox1.BackgroundImage = bmp;
g = Graphics.FromImage(bmp);
g.Clear(pictureBox1.BackColor);
}
#endregion

private void line_Click(object sender, System.EventArgs e)
{
drawwhat = 1;
}
#region Drawwhat
private void DrawReq()
{

if(drawwhat == 1)
{
dr.line(p,start,end);
Line l = new Line();
l.Pen = p;
l.First = start;
l.Second = end;
lines.Add(l);
l = null;

}
else if(drawwhat == 2)
{
dr.square(new Pen(Color.Black,1),start,end);
Line l = new Line();
l.Pen = p;
l.First = start;
l.Second = end;
squeres.Add(l);
l = null;
}
else if(drawwhat == 3)
{
dr.circle(p,start,end);
Line l = new Line();
l.Pen = p;
l.First = start;
l.Second = end;
circles.Add(l);
l = null;
}
else if(drawwhat == 4)
{
dr.ellipse(p,start,end);
Line l = new Line();
l.Pen = p;
l.First = start;
l.Second = end;
ellipses.Add(l);
l = null;
}
else if (drawwhat == 5 && n!=0)
{
dr.polygon(n,p,start,end);
Polygon np = new Polygon();
np.Pen = p;
np.First = start;
np.Second = end;
np.n = n;
polygons.Add(np);
np = null;
}

}
//______________________________________________________________
private void DrawReq(Point last)// overloading to draw during moving
{
end = last;
if(drawwhat == 1)
{
dr.line(p,start,end);

}
else if(drawwhat == 2)
{
dr.square(p,start,end);

}
else if(drawwhat == 3)
{
dr.circle(p,start,end);
}
else if(drawwhat == 4)
{
dr.ellipse(p,start,end);
}
else if (drawwhat == 5)
{
dr.polygon(n,p,start,end);
}

}
//________________________________________________________________

//________________________________________________________________
#endregion
#region Refresh
private void refresh()
{
pictureBox1.Refresh();
foreach(Line l in lines)
{
dr.line(l.Pen,l.First,l.Second);
}
foreach(Line l in squeres)
{
dr.square(l.Pen,l.First,l.Second);
}
foreach(Line l in circles)
{
dr.circle(l.Pen,l.First,l.Second);
}
foreach(Line l in ellipses)
{
dr.ellipse(l.Pen,l.First,l.Second);
}
foreach(Polygon p in polygons)
{
dr.polygon(p.n,p.Pen,p.First,p.Second);
}

}
#endregion

private void square_Click(object sender, System.EventArgs e)
{
drawwhat = 2;
}

private void circle_Click(object sender, System.EventArgs e)
{
drawwhat = 3;
}

private void pictureBox1_Click(object sender, System.EventArgs e)
{

}

private void ellipse_Click(object sender, System.EventArgs e)
{
drawwhat = 4;
}

private void polygon_Click(object sender, System.EventArgs e)
{
drawwhat = 5;
}

private void ok_Click(object sender, System.EventArgs e)
{
try
{
n = int.Parse(textBox1.Text.ToString());
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}

private void menuItem4_Click(object sender, System.EventArgs e)
{
// save the file

string str_Line;
System.IO.FileStream fs = new System.IO.FileStream("c:\\graphics.txt", System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write, System.IO.FileShare.ReadWrite);
StreamWriter streamWriter=new StreamWriter(fs);

if(drawwhat==1)
{
for(int j=0;j

Hello...
i need to split the forms to two screens show..

like one window wolla start at the main screen and any given time other windows pop up at second screen...

Thanks...

Shimon

What language are you using ? .NET languages have a Screen.AllScreens enum that gives you the bounds of all your screens, so it's trivial to position windows in them.

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

guys u really doing agreat work..okie i just wanna to make color eraser ..like that one in Paint by c#..i didnt find it in deitel (it sucks).i can understand the code but i cant creat it .
fellas dont late for me..iam stuck..

Best Regards Smile | :)