在Processing中做字体变形通常需要有以下基础知识：
1、PGraphics对象
2、图片像素化
制作过程也不复杂，代码如下：
1 color ELLIPSE_COLOR = color(0); 2 color LINE_COLOR = color(0, 125); 3 color PGRAPHICS_COLOR = color(0); 4 int LINE_LENGTH = 25; 5 boolean reverseDrawing = false; 6 PGraphics pg; 7 PFont f = createFont("宋体", 42); 8 void setup() { 9 size(1280, 720,P2D); 10 pg = createGraphics(width, height, JAVA2D); 11 pg.beginDraw(); 12 pg.textFont(f); 13 pg.textSize(300); 14 pg.textAlign(CENTER, CENTER); 15 pg.fill(PGRAPHICS_COLOR); 16 pg.text("麥塔威", pg.width/2, pg.height/2); 17 pg.endDraw(); 18 } 19 void draw() { 20 int gridH = (int) map(mouseX, 0, width, 30, 100); 21 int gridV = (int) map(mouseY, 0, height, 15, 100); 22 float w = width/gridH; 23 float h = height/gridV; 24 float r = min(w, h); 25 26 background(255); 27 strokeWeight(1); 28 for (int y=0; y<gridV; y++) { 29 for (int x=0; x<gridH; x++) { 30 float _x = x*w; 31 float _y = y*h; 32 color c = pg.get(int(_x), int(_y)); 33 boolean textDraw = (c == PGRAPHICS_COLOR); 34 if (textDraw) { 35 noStroke(); 36 fill(ELLIPSE_COLOR); 37 ellipse(_x, _y, r, r); 38 } else { 39 stroke(LINE_COLOR); 40 line(_x, _y, _x+LINE_LENGTH, _y+LINE_LENGTH); 41 } 42 } 43 } 44 }
其中，setup部分的pg操作都是在PGraphics对象上的操作，这个对象就类似于画布上的画布，而draw里面两个for循环则是实现字体变形的关键，将图片像素化以后比对字体颜色和背景颜色就可以将字体从背景中“抠”出来，然后想捏扁还是捏圆就看各人的喜好了~
