Help with drawing

[Crash893]

im trying to duplicate a really neat java applet i saw on the web ( source code was free)

but part of the program sets up a "drawing area"

void setup() {
  // set up drawing area
  size(800,800,P3D);
  background(0);
  // take it nice and easy
  framerate(15);
  // load typeface
  metaBold = loadFont("Arial-48.vlw");
}

and im not sure what the eqivlantcy is in C# i set up a picture box but im not sure how to set up c# to change it pixel by pixel like the java program does

any pointers

[Crash893]

here is the entire source code if needed

// j.tarbell   January, 2004
// Albuquerque, New Mexico
// complexification.net

// based on code by Paul Bourke
// astronomy.swin.edu.au/~pbourke/

// Processing 0085 Beta syntax update
// j.tarbell   April, 2005

int dim = 800;             // screen dimensions (square window)
int bailout = 200;         // number of iterations before bail
int plots = 10000;        // number of plots to execute per frame (x30 = plots per second)

// 2D array to hold exposure values
int[] exposure = new int[dim*dim];
int maxexposure;           // maximum exposure value
int time = 0;
int exposures = 0;

boolean drawing;
PFont metaBold;

//  MAIN ----------------------------------------------------------------

void setup() {
  // set up drawing area
  size(800,800,P3D);
  background(0);
  // take it nice and easy
  framerate(15);
  // load typeface
  metaBold = loadFont("Arial-48.vlw");
}

void draw() {
  plotPlots();
  time++;
  if (time%30==0) {
    // show progress every 2 seconds or so...
    findMaxExposure();
    renderBrot();
    // show exposure value
    fill(255);
    noStroke();
    textFont(metaBold, 14);
    text("bailout:  "+bailout+"    exposures: "+exposures, 5, dim-6);
  }
}

void plotPlots() {
  float x, y;
  // iterate through some plots
  for (int n=0;n<plots;n++) {
    // Choose a random point in same range
    x = random(-2.0,1.0);
    y = random(-1.5,1.5);
    if (iterate(x,y,false)) {
      iterate(x,y,true);
      exposures++;
    }
  }
}

void renderBrot() {
  // draw to screen
  for (int i=0;i<dim;i++) {
    for (int j=0;j<dim;j++) {
      float ramp = exposure[i*dim+j] / (maxexposure / 2.5);
      // blow out ultra bright regions
      if (ramp > 1)  {
        ramp = 1;
      }
      color c = color(int(ramp*255), int(ramp*255), int(ramp*255));
      set(j,i,c);
    }
  }
}

//   Iterate the Mandelbrot and return TRUE if the point exits
//   Also handle the drawing of the exit points
boolean iterate(float x0, float y0, boolean drawIt) {
  float x = 0;
  float y = 0;
  float xnew, ynew;
  int ix,iy;

  for (int i=0;i<bailout;i++) {
    xnew = x * x - y * y + x0;
    ynew = 2 * x * y + y0;
    if (drawIt && (i > 3)) {
      ix = int(dim * (xnew + 2.0) / 3.0);
      iy = int(dim * (ynew + 1.5) / 3.0);
      if (ix >= 0 && iy >= 0 && ix < dim && iy < dim) {
        // rotate and expose point
        exposure[ix*dim+iy]++;
      }

    }
    if ((xnew*xnew + ynew*ynew) > 4) {
      // escapes
      return true;
    }
    x = xnew;
    y = ynew;
  }
  // does not escape
  return false;
}

void findMaxExposure() {
  // assume no exposure
  maxexposure=0;
  // find the largest density value
  for (int i=0;i<dim;i++) {
    for (int j=0;j<dim;j++) {
      maxexposure = max(maxexposure,exposure[i*dim+j]);
    }
  }
}
	}
}

[jmcilhinney]

I would guess that drawing in Java is fairly different to drawing in .NET. Forget converting code and think about the end result. Decide what you want to happen and then look at the best way to accomplish that result in C#. It may be nothing like the Java code. Drawing in .NET is done using GDI+, mostly through the Graphics class. You should read some .NET GDI+ tutorials.

[Crash893]

ill give it a try

ill let you know how it goes

[ComputerJy]

By the way, this is not Java this is javascript

[Crash893]

ah

sorry

im just glad i noticed it as java anything

[wossname]

I hope you are going to optimize that before you translate it.

[Crash893]

i hope you suggest some optimizeations