ShanWang-Project5-WallPaper

In this project, I got inspiration from the patterns on blue and white pottery from China. By making a function that draws each module, generating multiple patterns became relatively easy.

sketch

//Shan Wang
//Section A
//shanw1@andrew.cmu.edu
//Assignment-05-Project



function setup() {
    createCanvas(700, 480);
    background("white");
}
function lockSpiral(cenX,cenY,unitLen,degree,weight){
    var startX = cenX;
    var startY = cenY;
    var len = unitLen
    for (var i=0; i<degree;i++){
        stroke(30,30,129);
        strokeWeight(weight);
        if ((i+1)%4 == 1){
            line(startX,startY,startX-len,startY);
            startX = startX-len
        }
        if ((i+1)%4 == 2){
            line(startX,startY,startX,startY+len);
            startY = startY+len
            len += unitLen
        }
        if ((i+1)%4 == 3){
            line(startX,startY,startX+len,startY);
            startX = startX+len
        }
        if ((i+1)%4 == 0){
            line(startX,startY,startX,startY-len);
            startY = startY-len
            len += unitLen
        }
    }
}
function cloud(cenX,cenY,largestR,unitR,num){
    for (var i = 0; i<num; i++){
        if (i%2 == 0){
            //fill("white")
            fill(30,30,129);
            arc(cenX,cenY,largestR-i*unitR,largestR-i*unitR,PI,TWO_PI,CHORD);
        }
        if (i%2 == 1){
            //fill(30,30,129);
            fill("white");
            arc(cenX,cenY,largestR-i*unitR,largestR-i*unitR,PI,TWO_PI,CHORD);
        }
    }
}

function draw() {
    noLoop();
    //draw spiral pattern
    var intervS = width/30;
    var spiralSize = width/60;

    for (var i=0; i<20; i++){
        lockSpiral((i+1)*intervS+i*spiralSize-5,height/2,5,13,2.5);
    }

    for (var i=0; i<10;i++){
        lockSpiral((i+1)*intervS*2+i*spiralSize*2-10,height/2+50,10,13,4);
    }
    for (var i=0; i<20;i++){
        lockSpiral((i+1)*intervS+i*spiralSize-5,height/2+100,5,13,2.5);
    }

    for (var i=0; i<20; i++){
        lockSpiral((i+1)*intervS+i*spiralSize-5,height/4+15,5,13,2.5);
    }

    for (var i=0; i<20; i++){
        lockSpiral((i+1)*intervS+i*spiralSize-5,50,5,13,2.5);
    }



    //draw wave pattern
    var intervC = width/60;
    var arcSizeS = 40;
    var arcSizeB = 60;
    for (var i=0; i<13; i++){
        noStroke();
        cloud((i+1)*intervC+i*arcSizeS+arcSizeS/3,height,50,7,8);
    }
    for (var i=0; i<13; i++){
        noStroke();
        cloud((i+1)*intervC+(i+1)*arcSizeS,height,50,7,8);
    }

    for (var i=0; i<10; i++){
        noStroke();
        cloud((i+1)*intervC+i*arcSizeB+arcSizeB/3,height/2-20,60,9,9);
    }
    for (var i=0; i<10; i++){
        noStroke();
        cloud((i+1)*intervC+(i+1)*arcSizeB,height/2-20,60,9,9);
    }

    push();
    for (var i=0; i<26; i++){
        translate((i+1)*intervC+(i+1)*arcSizeS,height*3/4);
        rotate(PI);
        cloud(0,0,60,9,9);
    }
    pop();

    push();
    for (var i=0; i<26; i++){
        translate((i+1)*intervC+i*arcSizeS+arcSizeS/3,height*3/4);
        rotate(PI);
        cloud(0,0,60,9,9);
    }
    pop();

    //draw linear pattern
    stroke(30,30,129);
    strokeCap(SQUARE);
    strokeWeight(5);
    line(0,height*4/5+18,width*2/3,height*4/5+18);
    line(width*2/3+15,height*4/5+18,width,height*4/5+18);

    strokeWeight(30);
    line(0,height*4/5+40,width*2/3,height*4/5+40);
    line(width*2/3+15,height*4/5+40,width,height*4/5+40);

    strokeWeight(3);
    line(0,height*12/13, width*2/3,height*12/13);
    line(width*2/3+15,height*12/13, width,height*12/13);

    strokeWeight(10);
    line(0,height/3,width/3,height/3);
    line(width/3+10,height/3,width,height/3);

    strokeWeight(40);
    line(0,height/5-5,width/3,height/5-5);
    line(width/3+10,height/5-5,width,height/5-5);

    strokeWeight(3);
    line(0,10, width*2/3,10);
    line(width*2/3+15,10, width,10);

    strokeWeight(8);
    line(0,20, width*2/3,20);
    line(width*2/3+15,20, width,20);

}