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De driehoeken in de draaipunten met h1 = 2*n en lr = 1

1) n = basis,  2)  h1 = hoogte, 3) lr = 1 schuine zijde --> rechts, lr = 0 schuine zijde --> links, 4) draaipunten 0 t/m6, 5) x positie, 6) y positie, 7) hoek, 8) kleur

 

class Drieh_nh90 extends Vormen {  
   
  Drieh_nh90(float n_, float h1_, int lr_, int d_, float x_, float y_, float hoek_, color c1_) {   
 super();   
 n  = n_;   
 h1 = h1_;  
 lr = lr_; 
 d  = d_;  
 x  = x_;   
 y  = y_;   
 hoek = hoek_;   
 c1 = c1_;     
 }  
   
void display() {   
 fill(c1);   
 pushMatrix();   
 translate(x, y);   
 rotate(radians(hoek));   
 beginShape();  
 if (d == 0 && lr == 0) {vertex(-n/4,h1/4);vertex(-n/4,-3*h1/4);vertex(3*n/4,h1/4);}  
 if (d == 1 && lr == 0) {vertex(0,0);vertex(0,-h1);vertex(n,0);}    
 if (d == 2 && lr == 0) {vertex(0,h1/2);vertex(0,-h1/2);vertex(n,h1/2);}   
 if (d == 3 && lr == 0) {vertex(0,h1);vertex(0,0);vertex(n,h1);}   
 if (d == 4 && lr == 0) {vertex(-n/2,h1/2);vertex(-n/2,-h1/2);vertex(n/2,h1/2);}   
 if (d == 5 && lr == 0) {vertex(-n,0);vertex(-n,-h1);vertex(0,0);}    
 if (d == 6 && lr == 0) {vertex(-n/2,0);vertex(-n/2,-h1);vertex(n/2,0);}  
 if (d == 0 && lr == 1) {vertex(-3*n/4,h1/4);vertex(n/4,-3*h1/4);vertex(n/4,h1/4);}    
 if (d == 1 && lr == 1) {vertex(0,0);vertex(n,-h1);vertex(n,0);}   
 if (d == 2 && lr == 1) {vertex(-n/2,h1/2);vertex(n/2,-h1/2);vertex(n/2,h1/2);}  
 if (d == 3 && lr == 1) {vertex(-n,h1);vertex(0,0);vertex(0,h1);}  
 if (d == 4 && lr == 1) {vertex(-n,h1/2);vertex(0,-h1/2);vertex(0,h1/2);}    
 if (d == 5 && lr == 1) {vertex(-n,0);vertex(0,-h1);vertex(0,0);}     
 if (d == 6 && lr == 1) {vertex(-n/2,0);vertex(n/2,-h1);vertex(n/2,0);}  
 endShape(CLOSE);   
 popMatrix();   
}   
}

 

animatie met 12 driehoeken met 90 graden hoeken      De animatie maakt ook gebruik van de superclass  ¨Vormen¨.

 

bekijk de roterende driehoeken                     de roterende driehoeken op ruitjespapier

 

 

Vormen[] drieh = new Vormen[12]; 
 
 void setup() {  
//  fullScreen(); 
  size(780, 560);  
  float x = width/2;  
  float y = height/2;  
  float n = height/8;  
  drieh[0] = new Drieh_nh90(n, 3*n, 1, 4, x-3*n, y-3*n/2, 90, color(200, 0, 100, 100));  
  drieh[1] = new Drieh_nh90(n, 3*n, 0, 2, x+3*n, y-3*n/2,-90, color(0, 255, 0, 100));   
  drieh[2] = new Drieh_nh90(n, 3*n, 0, 2, x-3*n, y+3*n/2, 90, color(255, 255, 0, 100));    
  drieh[3] = new Drieh_nh90(n, 3*n, 1, 4, x+3*n, y+3*n/2,-90, color(255, 0, 58, 100));    
  drieh[4] = new Drieh_nh90(n, 3*n, 1, 3, x,     y-n/2,   90, color(140, 255, 0, 100));    
  drieh[5] = new Drieh_nh90(n, 3*n, 0, 3, x,     y-n/2,  -90, color(0, 0, 255, 100));    
  drieh[6] = new Drieh_nh90(n, 3*n, 0, 3, x,     y+n/2,   90, color(100, 200, 100, 100));  
  drieh[7] = new Drieh_nh90(n, 3*n, 1, 3, x,     y+n/2,  -90, color(200, 200, 0, 100));    
  drieh[8] = new Drieh_nh90(n, 2*n, 1, 5, x,     y-n/2,    0, color(140, 255, 0, 100));    
  drieh[9] = new Drieh_nh90(n, 2*n, 0, 1, x,     y-n/2,    0, color(0, 0, 255, 100));      
  drieh[10] = new Drieh_nh90(n, 2*n, 0, 1, x,    y+n/2,  180, color(200, 0, 100, 100));  
  drieh[11] = new Drieh_nh90(n, 2*n, 1, 5, x,    y+n/2, -180, color(100, 200, 100, 100));  
}  
  
void draw() {  
  background(#E6FBFF); 
     //assenstelsel    
  stroke(255, 0, 0);    
  line (width/2,0, width/2, height);    
  line(0, height/2, width, height/2);    
  stroke(0);     
  for (int i = 0; i < 12; i++) 
{ 
  drieh[i].display(); 
} 
  drieh[0].dpRotRe(drieh[0]); 
  drieh[1].dpRotLi(drieh[1]); 
  drieh[3].dpRotRe(drieh[3]); 
  drieh[2].dpRotLi(drieh[2]); 
  drieh[8].dpRotLi(drieh[8]); 
  drieh[9].dpRotRe(drieh[9]); 
  drieh[10].dpRotRe(drieh[10]); 
  drieh[11].dpRotLi(drieh[11]); 
} 
 
void keyPressed() {     
   if (key == 's') {    
    noLoop();    
  }     
   if (key == 'r') {       
    loop();    
  }    
 }