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whateverxforeverwhateverxforever
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Final commit for today
1 parent aee2daa commit 23f874b

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11 files changed

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Diff for: ‎GraphicsLab_Clipping/GraphicsLab_LineClipping/GraphicsLab_LineClipping.pde

+117
Original file line numberDiff line numberDiff line change
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int line_num = 5;
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int inside=0, left=1, right=2, bottom=4, top=8;
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int x_max=450, y_max=400, x_min=150, y_min=200;
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int findCode(double x, double y) {
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int code = inside;
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if (x < x_min){
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code = code|left;}
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else if (x > x_max){
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code = code|right;}
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if (y < y_min){
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code = code|top;}
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else if (y > y_max){
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code = code|bottom;}
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return code;
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}
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void line_clipping(double x1, double y1, double x2, double y2) {
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int code1 = findCode(x1, y1);
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int code2 = findCode(x2, y2);
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print(x1 + " " + y1 + " ");
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println(code1);
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print(x2 + " " + y2 + " ");
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println(code1);
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boolean isLine = false;
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while (true) {
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if ((code1==0) && (code2==0)) {
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isLine=true;
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break;
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} else if ((code1 & code2)!=0) {
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break;
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} else {
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int result;
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double x=0, y=0;
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if (code1!=0)
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result = code1;
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else
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result = code2;
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if ((result & bottom)!=0) {
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x = x1 + (x2 - x1) * (y_max - y1) / (y2 - y1);
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y = y_max;
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} else if ((result & top)!=0)
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{
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x = x1 + (x2 - x1) * (y_min - y1) / (y2 - y1);
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y = y_min;
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} else if ((result & right)!=0)
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{
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y = y1 + (y2 - y1) * (x_max - x1) / (x2 - x1);
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x = x_max;
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} else if ((result & left)!=0)
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{
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y = y1 + (y2 - y1) * (x_min - x1) / (x2 - x1);
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x = x_min;
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}
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if (result==code1) {
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x1 = x;
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y1 = y;
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code1 = findCode(x1, y1);
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} else {
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x2 = x;
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y2 = y;
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code2 = findCode(x2, y2);
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}
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}
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}
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if(isLine==true){
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stroke(255, 0, 0);
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strokeWeight(2);
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stroke(255, 0, 0);
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line((float)x1, (float)y1, (float)x2, (float)y2);
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}
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}
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void setup() {
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size(600, 600);
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}
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void draw(){
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frameRate(1);
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background(51);
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strokeWeight(2);
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stroke(255);
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rectMode(CENTER);
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noFill();
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rect(width/2, height/2, 300, 200);
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strokeWeight(0.3);
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for (int i=0; i<line_num; i++) {
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int x1 = int(random(0, width));
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int y1 = int(random(0, width));
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int x2 = int(random(0, height));
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int y2 = int(random(0, height));
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strokeWeight(0);
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stroke(255);
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line(x1, y1, x2, y2);
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line_clipping(x1, y1, x2, y2);
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}
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114+
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}
117+

Diff for: ‎GraphicsLab_Clipping/GraphicsLab_PolygonClipping/GraphicsLab_PolygonClipping.pde

+93
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,93 @@
1+
int max_size = 200;
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int xIntersect(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4)
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{
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int num = (x1*y2 - y1*x2) * (x3-x4) - (x1-x2) * (x3*y4 - y3*x4);
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int den = (x1-x2) * (y3-y4) - (y1-y2) * (x3-x4);
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return num/den;
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}
9+
int yIntersect(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4)
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{
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int num = (x1*y2 - y1*x2) * (y3-y4) - (y1-y2) * (x3*y4 - y3*x4);
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int den = (x1-x2) * (y3-y4) - (y1-y2) * (x3-x4);
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return num/den;
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}
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void edgeClip(int poly[][], int poly_size, int x1, int y1, int x2, int y2) {
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int[][] new_poly = new int[max_size][2];
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int new_poly_size = 0;
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for (int i=0; i<poly_size; i++) {
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int k = (i+1) % poly_size;
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int ix = poly[i][0], iy = poly[i][1];
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int kx = poly[k][0], ky = poly[k][1];
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int i_pos = (x2-x1) * (iy-y1) - (y2-y1) * (ix-x1);
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int k_pos = (x2-x1) * (ky-y1) - (y2-y1) * (kx-x1);
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if (i_pos < 0 && k_pos < 0)
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{
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new_poly[new_poly_size][0] = kx;
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new_poly[new_poly_size][1] = ky;
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++new_poly_size;
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} else if (i_pos >= 0 && k_pos < 0)
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{
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new_poly[new_poly_size][0] = xIntersect(x1, y1, x2, y2, ix, iy, kx, ky);
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new_poly[new_poly_size][1] = yIntersect(x1, y1, x2, y2, ix, iy, kx, ky);
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++new_poly_size;
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new_poly[new_poly_size][0] = kx;
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new_poly[new_poly_size][1] = ky;
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++new_poly_size;
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} else if (i_pos < 0 && k_pos >= 0)
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{
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new_poly[new_poly_size][0] = xIntersect(x1, y1, x2, y2, ix, iy, kx, ky);
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new_poly[new_poly_size][1] = yIntersect(x1, y1, x2, y2, ix, iy, kx, ky);
47+
++new_poly_size;
48+
}
49+
}
50+
poly_size = new_poly_size;
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for (int i = 0; i < poly_size; i++)
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{
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poly[i][0] = new_poly[i][0];
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poly[i][1] = new_poly[i][1];
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}
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}
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void polygonClipping(int poly[][], int poly_size, int clip[][], int clip_size) {
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for (int i = 0; i < clip_size; i++)
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{
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int k = (i+1) % clip_size;
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63+
edgeClip(poly, poly_size, clip[i][0], clip[i][1], clip[k][0], clip[k][1]);
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}
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noFill();
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beginShape();
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for(int i=0; i<poly_size; i++){
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vertex(poly[i][0], poly[i][1]);
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}
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endShape(CLOSE);
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}
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void setup() {
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size(600, 600);
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int poly_size = 3;
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int poly_points[][] = {{100, 150}, {200, 250},{300, 200}};
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triangle(100, 150, 200, 250,300, 200);
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int clipper_size = 4;
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int clipper_points[][] = {{150, 150}, {150, 200}, {200, 200}, {200, 150} };
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//beginShape();
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//vertex(150, 150);
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//vertex(150, 200);
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//vertex(200, 200);
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//vertex(200, 150);
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//vertex(150, 150);
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//endShape();
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polygonClipping(poly_points, poly_size, clipper_points, clipper_size);
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}

Diff for: ‎GraphicsLab_Modelling/p5/Modelling/index.html

+15
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<!DOCTYPE html>
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<html lang="">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Computer Graphics</title>
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<style> body {padding: 0; margin: 0;} </style>
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<script src="../p5.min.js"></script>
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<script src="../addons/p5.dom.min.js"></script>
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<script src="../addons/p5.sound.min.js"></script>
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<script src="sketch.js"></script>
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</head>
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<body>
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</body>
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</html>

Diff for: ‎GraphicsLab_Modelling/p5/Modelling/sketch.js

+78
Original file line numberDiff line numberDiff line change
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function setup() {
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createCanvas(1000, 735);
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}
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function draw() {
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8+
background(55);
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stroke(255);
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strokeWeight(3);
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noFill();
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//body
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line(215,350,763,352);
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line(215,350,215,439);
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arc(763,409,170,114,PI+HALF_PI,TWO_PI);
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line(847,405,850,439);
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line(860,528,109,528);
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line(373,488,652,488);
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//bumpers
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//front bumper
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line(781,438,850,439);
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line(850,438,873,444);
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line(774,488,850,488);
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line(850,488,873,444);
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//rear bumper
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line(246,442,196,439);
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line(247,485,208,486);
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line(208,486,196,439);
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//lights
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//rear
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rect(215,375,20,15);
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//front
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ellipse(806,377,5,22);
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//upper part
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line(304,350,379,240);
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line(379,240,592,230);
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line(592,230,664,350);
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//window
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line(454,238,457,350);
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//doors
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line(460,488,457,350);
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line(661,412,664,350);
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quad(474,357, 506,360, 505,369, 477,368);
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//tires
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//left tire
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ellipse(314,459,135,135);
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ellipse(314,459,60,60);
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ellipse(314,459,10,10);
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//tire rims
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line(314,429,314,453);
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line(307,461,287,445);
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line(309,465,293,481);
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line(336,479,320,463);
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line(320,456,340,445);
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//right tire
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ellipse(713,459,135,135);
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ellipse(713,459,60,60);
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ellipse(713,459,10,10);
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//tire rims
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line(314+400,429,314+400,453);
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line(307+400,461,287+400,445);
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line(309+400,465,293+400,481);
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line(336+400,479,320+400,463);
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line(320+400,456,340+400,445);
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}

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