Jörg F: hat „Javakurs2007/Appleman/Musterloesung“ nach „Javakurs/Übungsaufgaben/Appleman/Musterloesung“ verschoben: wikistruktur

2010-08-01T11:46:45Z

hat „Javakurs2007/Appleman/Musterloesung“ nach „Javakurs/Übungsaufgaben/Appleman/Musterloesung“ verschoben: wikistruktur

Bmay: Kategorisiert

2009-03-17T13:19:12Z

Kategorisiert

Cleeus am 8. April 2007 um 13:14 Uhr

2007-04-08T13:14:43Z

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class Appleman {
public static void main(String[] args) {
//create the drawing area
Pad drawPad = new Pad();

//set limits for iteration
int maxIter = 100000;
double maxAbsZ = 100000;

//set area to draw
double startX = -2;
double startY = -1;
double endX = 1;
double endY = 1;

//set width of one pixel
double step = 0.003;

//calculate window width/height
int width = (int)((endX - startX)/step);
int height = (int)((endY - startY)/step);

//final pad operations
drawPad.setPadSize(width, height);
drawPad.setVisible(true);

double cReal = startX; //real part of c
double cImg = startY; //imaginary part of c

//first loop: iterate over y coordinate
for(int y=0; y<height; y++) {
cImg += step;
cReal = startX;

//second loop: iterate over x coordinate
for(int x=0; x<width; x++) {
cReal += step;

//do the z_n+1 = z_n + c iteration
int iter = pointIteration(cReal, cImg, maxAbsZ, maxIter);

//the point is included in the mandelbrot set, draw a point
if(iter==maxIter) {
drawPad.drawDot(x, y);
}
}
}
return;
}

public static int pointIteration(double cReal, double cImg, double maxAbsZ, int maxIter) {
double zReal = 0; //real part of z_n
double zImg = 0; //imaginary part of z_n

int i=0;

//z_n+1 = z_n + c
//stop when either maxIter is reached (we assume, that the point is included in the mandelbrot set)
// or when the abs(z_n) is big enough (we assume, that the point is not included in the mandelbrot set)
while(i<maxIter && (zReal*zReal+zImg*zImg)<maxAbsZ) {
zReal = zReal*zReal - zImg*zImg + cReal;
zImg = 2*zReal*zImg + cImg;
i++;
}

//return the number of iterations done
return i;
}
}

← Nächstältere Version		Version vom 17. März 2009, 13:19 Uhr
Zeile 70:		Zeile 70:
	}		}
	}		}
		+
		+	[[Kategorie:Java]]
		+	[[Kategorie:Java_Loesungen]]

← Nächstältere Version	Version vom 1. August 2010, 11:46 Uhr
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Javakurs/Übungsaufgaben/Appleman/Musterloesung - Versionsgeschichte

Jörg F: hat „Javakurs2007/Appleman/Musterloesung“ nach „Javakurs/Übungsaufgaben/Appleman/Musterloesung“ verschoben: wikistruktur

Bmay: Kategorisiert

Cleeus am 8. April 2007 um 13:14 Uhr