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…nt-directories'
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Applet Programming with Animation | ||
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When You run this code: | ||
on mouse click car(drawn on applet) will start moving (Animation in applet) |
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import java.applet.*; | ||
import java.awt.*; | ||
import java.awt.event.*; | ||
public class car extends Applet implements Runnable,MouseListener | ||
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{ | ||
int i=0,k=0,z=0; | ||
public void paint(Graphics g) | ||
{ | ||
int x[]={200+i,300+i,400+i,500+i,500+i,0+i,0+i,100+i}; | ||
int y[]={200,200,300,300,400,400,300,300}; | ||
g.setColor(Color.RED); | ||
g.fillPolygon(x,y,8); | ||
g.setColor(Color.BLUE); | ||
g.drawPolygon(x,y,8); | ||
g.setColor(Color.WHITE); | ||
g.fillOval(80+i, 350, 80, 80); | ||
g.fillOval(320+i, 350, 80, 80); | ||
g.setColor(Color.GREEN); | ||
g.drawOval(80+i, 350, 80, 80); | ||
g.drawOval(320+i, 350, 80, 80); | ||
int x1[]={200+i,300+i,380+i,120+i}; | ||
int y1[]={220,220,300,300}; | ||
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g.setColor(Color.DARK_GRAY); | ||
g.fillPolygon(x1,y1,4); | ||
g.setColor(Color.MAGENTA); | ||
g.drawPolygon(x1,y1,4); | ||
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} | ||
void update() | ||
{ | ||
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if(z%2!=0) | ||
{ | ||
i=(i+1)%getWidth(); | ||
} | ||
if(z%2==0) | ||
{ | ||
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if(i==0) | ||
{ | ||
i=getWidth(); | ||
} | ||
i=(i-1); | ||
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} | ||
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} | ||
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Thread t; | ||
Thread t1; | ||
public void init() | ||
{ | ||
t=new Thread(this); | ||
//t.setDaemon(true); | ||
t1=new Thread(this); | ||
//t1.setDaemon(true); | ||
addMouseListener(this); | ||
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} | ||
public void run() | ||
{ | ||
if(z%2==0) | ||
{ | ||
while(true) | ||
{ | ||
update(); | ||
repaint(); | ||
try | ||
{ | ||
Thread.sleep(10); | ||
} | ||
catch(Exception e ) | ||
{ | ||
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} | ||
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} | ||
} | ||
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if(z%2!=0) | ||
{ | ||
while(true) | ||
{ | ||
update(); | ||
repaint(); | ||
try | ||
{ | ||
Thread.sleep(10); | ||
} | ||
catch(Exception e ) | ||
{ | ||
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} | ||
} | ||
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} | ||
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} | ||
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public void mouseClicked(MouseEvent e) | ||
{ | ||
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//if(k>0) | ||
//{ | ||
//t.resume(); | ||
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// } | ||
System.out.println("kkk = "+e); | ||
int x=e.getX(); | ||
int y=e.getY(); | ||
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z++; | ||
while(x>0&&x<getWidth()) | ||
{ | ||
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if(z%2!=0) | ||
{ | ||
System.out.println(x); | ||
t.start(); | ||
} | ||
if(z%2==0) | ||
{ | ||
System.out.println(x); | ||
t1.start(); | ||
} | ||
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} | ||
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} | ||
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@Override | ||
public void mouseEntered(MouseEvent arg0) { | ||
// TODO Auto-generated method stub | ||
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} | ||
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@Override | ||
public void mouseExited(MouseEvent arg0) { | ||
// TODO Auto-generated method stub | ||
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} | ||
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@Override | ||
public void mousePressed(MouseEvent arg0) | ||
{ | ||
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} | ||
@Override | ||
public void mouseReleased(MouseEvent arg0) | ||
{ | ||
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} | ||
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} |
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from numpy import * | ||
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def compute_error(b, m, points): | ||
totalerror = 0 | ||
for i in range(0, len(points)): | ||
x = points[i, 0] | ||
y = points[i, 1] | ||
totalerror += (y - (m * x + b)) ** 2 | ||
return totalerror / float(len(points)) | ||
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def step_gradient(b, m, points, learning_rate): | ||
#gradient descent | ||
b_gradient = 0 | ||
m_gradient = 0 | ||
N = float(len(points)) | ||
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for i in range(0, len(points)): | ||
x = points[i, 0] | ||
y = points[i, 1] | ||
b_gradient += -(2/N) * (y - ((m * x) + b)) | ||
m_gradient += -(2 / N) * x * (y - ((m * x) + b)) | ||
new_b = b - (learning_rate * b_gradient) | ||
new_m = m - (learning_rate * m_gradient) | ||
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return [new_b, new_m] | ||
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def gradient_descent_runner(points, initial_b, initial_m, learning_rate, num_of_iterations): | ||
b = initial_b | ||
m = initial_m | ||
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for i in range(num_of_iterations): | ||
b, m = step_gradient(b, m, array(points), learning_rate) | ||
return [b, m] | ||
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def run(): | ||
points = genfromtxt('data1.csv', delimiter=',') | ||
learning_rate = 0.0001 #hyperparameter | ||
#slope and yintercept y = mx + b | ||
initial_b = 0 | ||
initial_m = 0 | ||
num_of_iterations = 1000 | ||
[b, m] = gradient_descent_runner(points, initial_b, initial_m, learning_rate, num_of_iterations) | ||
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print(b) | ||
print(m) | ||
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if __name__ == "__main__": | ||
run() | ||
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