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197const canvas = (()=>{
var clientRect = webglCanvas.getBoundingClientRect();
var mouseDown = false;
var mode = 'create'//paint, extrude, cut
var color = vec4.fromValues(1.0,0.6,0.1,1.0);
var stroke = [];// trajectory in NDC
var showWireframe = false
var originalObjectPath = [];
function onClear(){
scene.clearObject();
scene.resetCamera();
originalObjectPath = [];
mouseDown = false;
setMode('create');
}
function getStroke(){
return stroke;
}
function getColor(){
return color;
}
function getMode(){
return mode;
}
function onColorChange(evt){
const hex = evt.target.value;
const r = parseInt(hex[1]+hex[2],16)/255,
g = parseInt(hex[3]+hex[4],16)/255,
b = parseInt(hex[5]+hex[6],16)/255;
color = vec4.fromValues(r,g,b,1.0);
}
function onMouseDown(){
mouseDown = true;
}
function onMouseMove(e){
if(!mouseDown){
return;
}
const [x,y] = scene.getNDCxy(e.clientX,e.clientY,clientRect);
stroke = stroke.concat([x,y,0])
}
function onMouseUp(e){
mouseDown = false;
if(mode==='create'){
// detect intersection
if(algorithm.selfIntersect(stroke)){
console.log('self intersects')
stroke = [];
return;
}
var path = []; // stroke projected onto image plane
for(let i=0;i<stroke.length;i+=3){
const x = stroke[3*i],y = stroke[3*i+1];
const ray = scene.getRay(x,y)
const imgPlane = scene.getImagePlane();
const planeNormal = imgPlane.n;
const planePoint = imgPlane.p;//near
const intersectp = scene.rayPlaneIntersect(ray, planeNormal, planePoint).p
path.push(intersectp)
}
const equalizedPath = [];
algorithm.Equalize(equalizedPath,path,0.05, true)
for(let i=0;i<equalizedPath.length;i++){
originalObjectPath.push(equalizedPath[i])
}
scene.buildObject(equalizedPath);
setMode('paint');
}
stroke = []
}
function setMode(newMode){
mode = newMode
}
function onScroll(event){
const rotateRadY = event.deltaX
const rotateRadX = event.deltaY
scene.rotateCamera(rotateRadX/1000,rotateRadY/1000)
event.preventDefault();
}
function onResize(){
clientRect = webglCanvas.getBoundingClientRect();
scene.setRatio(clientRect.width/clientRect.height);
}
function getReferenceDotPositions(){
const dotPositions = []
const pixstep=50
const stepx = 2/(clientRect.height/pixstep)
const stepy = 2/(clientRect.width/pixstep)
const z = 0.9
for(let c=-stepx/2;c>-1;c-=stepx){
for(let r=stepy/2;r<1;r+=stepy){
dotPositions.push([r,c,z])
}
for(let r=-stepy/2;r>-1;r-=stepy){
dotPositions.push([r,c,z])
}
}
for(let c=stepx/2;c<1;c+=stepx){
for(let r=stepy/2;r<1;r+=stepy){
dotPositions.push([r,c,z])
}
for(let r=-stepy/2;r>-1;r-=stepy){
dotPositions.push([r,c,z])
}
}
return dotPositions
}
function getReferenceDotScales(){
const scalex = 300/clientRect.width
const scaley = 300/clientRect.height
return [scalex,scaley]
}
function onSwitchWireframe(){
showWireframe = !showWireframe;
const elem = document.getElementById('wireframeButtonIcon')
if(showWireframe){
elem.src = "images/border-all-solid.svg"
}else{
elem.src = "images/th-large-solid.svg"
}
}
function getIfShowWireframe(){
return showWireframe
}
function openInNewTab(url){
return ()=>{
window.open(url,'_blank');
}
}
function initializeMouseEvents(){
var webglCanvas = document.getElementById("webglCanvas");
webglCanvas.addEventListener('mousedown', onMouseDown)
webglCanvas.addEventListener('mousemove', onMouseMove)
webglCanvas.addEventListener('mouseup', onMouseUp)
webglCanvas.onwheel = onScroll
var clearButton = document.getElementById("clearButton");
clearButton.addEventListener('click',onClear)
var colorPicker = document.getElementById("colorPicker");
colorPicker.addEventListener('change',onColorChange)
var wireframeButton = document.getElementById("wireframeButton");
wireframeButton.addEventListener('click',onSwitchWireframe);
var personalWebLink = document.getElementById("personalweblink");
personalWebLink.addEventListener('click',openInNewTab('http://zeyapeng.com/'));
var repositoryLink = document.getElementById("repositorylink");
repositoryLink.addEventListener('click',openInNewTab('https://github.com/zeyap/teddy'));
var researchLink = document.getElementById("researchlink");
researchLink.addEventListener('click',openInNewTab('https://www-ui.is.s.u-tokyo.ac.jp/~takeo/teddy/teddy.htm'));
window.onresize = onResize
}
return {
initializeMouseEvents,
getStroke,
getColor,
getMode,
getIfShowWireframe,
getReferenceDotPositions,
getReferenceDotScales,
};
})()