static void Main(string[] args)
{
Application.EnableVisualStyles();
GraphicsForm form = new GraphicsForm();
form.Draw();
Application.Run(form);
}
//This is quiet a monolithic function, but it gets the job done
static void DrawGraph(int[] solutionsSet, int Max)
{
//Find Biggest number of solutions (Used for graphing dynamically)
int biggest = 0;
foreach(int sol in solutionsSet)
{
if (sol > biggest) biggest = sol;
}
Application.EnableVisualStyles();
GraphicsForm GFORM = new GraphicsForm();
GFORM.Title = "N-Queens";
int width = 640;
int height = 480;
int pad = 25;
//Defaults to an internal size of 400 x 400 pixels, this can be overridden
GFORM.CanvasWidth = width;
GFORM.CanvasHeight = height;
GFORM.CanvasWidthOffset = 6; // The canvas size is meant to fit inside the window, but at compile it changes slightly
GFORM.CanvasHeightOffset = 29; // These offsets can tweak the width and height of the Form (not canvas)
// I'm overriding the defaults in this case
double X = 0;
double Y = 0;
double yScale = 0.95*(height - (2*pad))/Math.Log(biggest);
double xSpace = (width-(2*pad))/(Max+2.0);
double prev_x = -1; // Need to connect previous point to the current one
double prev_y = -1;
foreach(int sol in solutionsSet)
{
if(sol != 0) //Cant calculate Log(0)
{
Y = Math.Log(sol);
}
double cur_x = pad+(X+1) * (xSpace);
double cur_y = (height-pad) -( Y * yScale);
GFORM.AddPoint(cur_x ,cur_y, 2);
X++;
if(prev_x >= 0)
{
GFORM.AddLine(prev_x,prev_y, cur_x, cur_y,1);
}
prev_x = cur_x;
prev_y =cur_y;
}
//Draw graph axes
GFORM.AddLine(pad,pad,width-pad,pad,1.5);
GFORM.AddLine(pad,pad,pad,height-pad,1.5);
GFORM.AddLine(pad,height-pad,width-pad,height-pad,1.5);
GFORM.AddLine(width-pad,pad,width-pad,height-pad,1.5);
// Draw X scale (linear)
for(int i =0; i < Max+2; i++)
{
GFORM.AddLine(pad+(i*xSpace),height-pad,pad+(i*xSpace),height-pad+5);
}
GFORM.AddText(width/3.0,height-15,"Queens");
// Draw Y scale (logarithmic)
int m = 1;
int scale =1;
int count =0;
double y = 0;
while((y = Math.Log(m)) <= Math.Log(biggest))
{ int l =5;
if(count == 0) l = 10;
GFORM.AddLine(pad-l,(height-pad)- (y*yScale),pad,(height-pad)-(y*yScale));
m+= scale;
// To avoid drawing a million little lines, we bump up the scale every factor of 10
count++;
if(count ==10)
{
count = 0;
scale *= 10;
}
}
GFORM.AddText(18,height/3.0,"Log(solutions)",90);
// Tell the form to render
GFORM.Draw();
IO.Write("Rendering...");
Application.Run(GFORM); // It could be possible to offload this to another thread.
}
