A little math geekiness on a boring workday...

[NuclearNed]

Its been a slow day at work, so I wrote a little program that generates cool pictures from polar coordinates. The math geek in me is showing. Maybe if anybody wants me to, I'll post the code for my program (its uber short).


image 1
image 2
image 3
image 4
image 5

 

[TheLonelyPhoenix]

Yeah, sure, I'd like to see it. What language did you use?

 

[NuclearNed]

Originally posted by: TheLonelyPhoenix
Yeah, sure, I'd like to see it. What language did you use?

C++ using MFC

 

[NuclearNed]

Here is the first of 2 files (test3.h). I'll post test3.cpp in another post:

class CMyApp : public CWinApp
{
public:
virtual BOOL InitInstance();
};

class CMainWindow : public CFrameWnd
{
public:
CMainWindow();
protected:
const static int scalar = 240;
double XPolarFn(double);
double YPolarFn(double);
const static long Off = 1;
const static long On = 0;
afx_msg void OnPaint();
DECLARE_MESSAGE_MAP()
};

 

[NuclearNed]

And here is test3.cpp:

#include <stdafx.h>
#include <math.h>
#include "test3.h"
CMyApp myApp;

BOOL CMyApp::InitInstance()
{
m_pMainWnd = new CMainWindow();
m_pMainWnd->ShowWindow(m_nCmdShow);
m_pMainWnd->UpdateWindow();
return TRUE;
}

BEGIN_MESSAGE_MAP (CMainWindow, CFrameWnd)
ON_WM_PAINT()
END_MESSAGE_MAP()

CMainWindow::CMainWindow()
{
Create(NULL, "TEST");
}

double CMainWindow::XPolarFn(double angle)
{
double value;
value = sin(angle);
value *= scalar;
return(value);
}

double CMainWindow::YPolarFn(double angle)
{
double value;
value = sin(angle) * sin(.9 * angle);
value *= scalar;
return(value);
}

void CMainWindow:😱nPaint()
{
CClientDC dc (this);
CRect rect;
double angle, angle_increment, centerX, centerY;

angle_increment = 0.01;
GetClientRect(&amp;rect);
centerX = rect.Width() / 2;
centerY = rect.Height() / 2;

for(angle = 0; angle <= 360; angle += angle_increment)
dc.SetPixel((int)(XPolarFn(angle) * cos(angle) + centerX), (int)(YPolarFn(angle) * sin(angle) + centerY), 0);
}

 

[TheLonelyPhoenix]

Wow... not bad for a quick hack. GJ.

 

[NuclearNed]

Originally posted by: TheLonelyPhoenix
Wow... not bad for a quick hack. GJ.

Thanks.

 

[Gibson486]

OK, I have officially decided to do a major that requires little or no programming...

 

[johnjbruin]

Cool. Your name should be NuclearNerd. :thumbsup:

 

[Syringer]

Originally posted by: johnjbruin
Cool. Your name should be NuclearNerd. :thumbsup:

:thumbsup:

 

[NuclearNed]

Originally posted by: Syringer

Originally posted by: johnjbruin
Cool. Your name should be NuclearNerd. :thumbsup:

:thumbsup:

<sigh> I've been called worse.

But I've Actually Kissed A Girl!!!

 

[TheLonelyPhoenix]

"Nerd" isn't a 4-letter word, its a 6-digit salary.