Zap, circuit drawing library for JavaScript

Installation:

brew install closure-compiler
./build.sh

Examples

A voltage divider

var zap = new Zap();

var resistor1 = zap.createResistor(5);
var resistor2 = zap.createResistor(10);
var ground = zap.createGround();

var view = zap.createView(200, 200);
// connect the components
view.wires = [zap.connect(resistor1.out, resistor2.in), zap.connect(resistor2.out, ground.in)];
// place the components
view.place(resistor1, 100, 50);
view.place(resistor2, 100, 100);
view.place(ground, 100, 150);

view.render(element);

A high pass filter

var zap = new Zap();

var resistor1 = zap.createResistor(5);
var resistor2 = zap.createResistor(10);
var opAmp = zap.createOpAmp('OPA4188');
var capacitor = zap.createCapacitor('10');
var ground = zap.createGround();

var view = zap.createView(200, 200).scale(1.2);

// connect the components
var wireArray = [];
wireArray.push(zap.connect(capacitor.out, resistor1.in));
wireArray.push(zap.connect(opAmp.vNeg, ground.in));
wireArray.push(zap.connect(resistor1.out, opAmp.vPos));
wireArray.push(zap.connect(opAmp.vPos, resistor2.in));
wireArray.push(zap.connect(opAmp.vOut, resistor2.out));

resistor1.rotateLeft();
resistor2.rotateLeft();
capacitor.rotateLeft();
opAmp.rotateRight();

view.wires = wireArray;

// place the components in the proper locations
view.place(resistor1, 60, 100);
view.place(opAmp, 100, 105);
view.place(capacitor, 20, 100);
view.place(resistor2, 100, 70);
view.place(ground, 70, 170);

view.render(element);