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console.log("hello from poseEditor.js")
var canvas = null;
var ctx = null;
function deepCopy(arr) {
return JSON.parse(JSON.stringify(arr));
}
function distSq(p0, p1) {
return (p0[0] - p1[0]) ** 2 + (p0[1] - p1[1]) ** 2;
}
// poseDataの形式:[[x1, y1], [x2, y2], ...]
let poseData = [];
// サンプルデータ
const sampleCandidateSource = [[235, 158],[234, 220],[193, 222],[138, 263],[89, 308],[276, 220],[325, 264],[375, 309],[207, 347],[203, 433],[199, 523],[261, 347],[262, 430],[261, 522],[227, 148],[245, 148],[208, 158],[258, 154]];
const sampleSubsetElementSource = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17];
// const sampleCandidateSource = [[618.00, 0.00], [618.00, 44.00], [304.00, 81.00], [482.00, 96.00], [66.00, 270.00], [171.00, 280.00], [618.00, 82.00], [307.00, 112.00], [460.00, 143.00], [0.00, 301.00], [65.00, 301.00], [172.00, 303.00], [584.00, 86.00], [275.00, 119.00], [420.00, 139.00], [0.00, 301.00], [41.00, 301.00], [144.00, 303.00], [544.00, 131.00], [348.00, 139.00], [262.00, 160.00], [0.00, 337.00], [52.00, 339.00], [130.00, 348.00], [570.00, 175.00], [283.00, 177.00], [78.00, 338.00], [172.00, 380.00], [651.00, 78.00], [338.00, 111.00], [505.00, 144.00], [92.00, 301.00], [198.00, 305.00], [661.00, 132.00], [349.00, 156.00], [541.00, 179.00], [106.00, 336.00], [203.00, 348.00], [305.00, 159.00], [665.00, 160.00], [563.00, 192.00], [80.00, 343.00], [181.00, 385.00], [614.00, 205.00], [291.00, 220.00], [432.00, 320.00], [152.00, 372.00], [43.00, 380.00], [0.00, 386.00], [623.00, 281.00], [306.00, 290.00], [92.00, 357.00], [509.00, 434.00], [304.00, 357.00], [622.00, 368.00], [47.00, 394.00], [0.00, 395.00], [142.00, 405.00], [535.00, 565.00], [655.00, 200.00], [337.00, 217.00], [467.00, 322.00], [191.00, 372.00], [83.00, 375.00], [344.00, 282.00], [655.00, 282.00], [103.00, 343.00], [237.00, 368.00], [22.00, 377.00], [0.00, 379.00], [460.00, 459.00], [305.00, 352.00], [638.00, 355.00], [0.00, 401.00], [110.00, 412.00], [411.00, 570.00], [608.00, 0.00], [608.00, 40.00], [297.00, 75.00], [469.00, 84.00], [0.00, 261.00], [58.00, 263.00], [165.00, 275.00], [625.00, 0.00], [625.00, 39.00], [309.00, 74.00], [486.00, 83.00], [71.00, 264.00], [180.00, 276.00], [599.00, 0.00], [599.00, 44.00], [284.00, 80.00], [440.00, 93.00], [48.00, 271.00], [0.00, 272.00], [157.00, 277.00], [634.00, 0.00], [633.00, 41.00], [319.00, 77.00], [79.00, 269.00], [190.00, 277.00]];
// const sampleSubsetElementSource = [1.00,6.00,12.00,18.00,24.00,28.00,33.00,39.00,43.00,49.00,54.00,59.00,65.00,72.00,77.00,84.00,90.00,97.00,32.98,18.00],[5.00,11.00,17.00,23.00,27.00,32.00,37.00,42.00,46.00,-1.00,-1.00,62.00,67.00,-1.00,82.00,88.00,95.00,100.00,25.45,15.00],[4.00,10.00,16.00,22.00,26.00,31.00,36.00,41.00,47.00,51.00,57.00,63.00,66.00,74.00,81.00,87.00,93.00,99.00,26.97,18.00],[3.00,8.00,14.00,19.00,25.00,30.00,35.00,40.00,45.00,52.00,58.00,61.00,70.00,75.00,79.00,86.00,92.00,-1.00,30.45,17.00],[2.00,7.00,13.00,20.00,-1.00,29.00,34.00,38.00,44.00,50.00,53.00,60.00,64.00,71.00,78.00,85.00,91.00,98.00,27.89,17.00],[0.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,-1.00,76.00,83.00,-1.00,96.00,3.33,4.00];
function makePoseFromCandidateAndSubsetElement(candidate, subsetElement) {
var pose = [];
for (let j = 0 ; j < 18; j++) {
pose.push(candidate[subsetElement[j]]);
}
return pose;
}
function makePoseDataFromCandidateAndSubset(candidate, subset) {
return subset.map(subsetElement => makePoseFromCandidateAndSubsetElement(candidate, subsetElement));
}
function addPerson() {
var dx = Math.random() * 100;
var dy = Math.random() * 100;
poseData.push(
makePoseFromCandidateAndSubsetElement(
sampleCandidateSource.map(point => [point[0] + dx, point[1] + dy]),
sampleSubsetElementSource));
Redraw();
}
// ドラッグ中の各キーが押されているかどうかのフラグ
var keyDownFlags = {};
// マウスカーソル
var mouseCursor = [0, 0];
function cross(lhs, rhs) {return lhs[0] * rhs[1] - lhs[1] * rhs[0];}
function dot(lhs, rhs) {return lhs[0] * rhs[0] + lhs[1] * rhs[1];}
function directedAngleTo(lhs, rhs) {return Math.atan2(cross(lhs, rhs), dot(lhs, rhs));}
function clearCanvas() {
var w = canvas.width;
var h = canvas.height;
ctx.fillStyle = 'black';
ctx.fillRect(0, 0, w, h);
}
function resizeCanvas(width, height) {
canvas.width = width ? width : canvas.width;
canvas.height = height ? height : canvas.height;
clearCanvas();
drawBodyPose();
}
function drawBodyPose() {
const stickWidth = 6;
const limbSeq = [[2, 3], [2, 6], [3, 4], [4, 5], [6, 7], [7, 8], [2, 9], [9, 10],
[10, 11], [2, 12], [12, 13], [13, 14], [2, 1], [1, 15], [15, 17],
[1, 16], [16, 18], [3, 17], [6, 18]];
const colors = [[255, 0, 0], [255, 85, 0], [255, 170, 0], [255, 255, 0], [170, 255, 0], [85, 255, 0], [0, 255, 0],
[0, 255, 85], [0, 255, 170], [0, 255, 255], [0, 170, 255], [0, 85, 255], [0, 0, 255], [85, 0, 255],
[170, 0, 255], [255, 0, 255], [255, 0, 170], [255, 0, 85]];
ctx.globalAlpha = 0.7;
for (let i = 0; i < poseData.length; i++) {
const pose = poseData[i];
// edge
for (let j = 0; j < 17; j++) {
const [X0, Y0] = pose[limbSeq[j][0]-1];
const [X1, Y1] = pose[limbSeq[j][1]-1];
ctx.beginPath();
ctx.lineWidth=stickWidth;
ctx.strokeStyle = `rgb(${colors[j].join(',')})`;
ctx.moveTo(X0, Y0);
ctx.lineTo(X1, Y1);
ctx.stroke();
}
// node
ctx.font = '12px serif';
for (let j = 0; j < 18; j++) {
const [x, y] = pose[j];
ctx.beginPath();
ctx.arc(x, y, stickWidth*1.2, 0, 2 * Math.PI);
ctx.fillStyle = `rgb(${colors[j].join(',')})`;
ctx.fill();
// ctx.fillStyle = 'rgb(255,255,255)'
// ctx.fillText(j, x-3, y+4);
}
}
ctx.globalAlpha = 1.0;
}
function drawUI() {
if (keyDownFlags['Space'] || keyDownFlags['BracketLeft'] || keyDownFlags['BracketRight']) {
ctx.beginPath();
ctx.arc(mouseCursor[0], mouseCursor[1], dragRange, 0, 2 * Math.PI);
ctx.strokeStyle = 'rgb(255,255,255)';
ctx.stroke();
}
if (isDragging && (dragMode == "rotate" || dragMode == "rotate2")) {
ctx.beginPath();
ctx.lineWidth=1;
ctx.strokeStyle = 'rgb(255,255,255)';
ctx.moveTo(dragStart[0], dragStart[1]);
ctx.lineTo(dragStart[0]+rotateBaseVector[0], dragStart[1]+rotateBaseVector[1]);
ctx.stroke();
}
}
function Redraw() {
clearCanvas();
drawBodyPose();
drawUI();
}
function getNearestNode(p) {
let minDistSq = Infinity;
let personIndex = -1;
let nodeIndex = -1;
for (let i = 0; i < poseData.length; i++) {
const pose = poseData[i];
for (let j = 0; j < pose.length; j++) {
const d = distSq(p, pose[j]);
if (d < minDistSq) {
minDistSq = d;
personIndex = i;
nodeIndex = j;
}
}
}
return [personIndex, nodeIndex, Math.sqrt(minDistSq)];
}
let dragRange = 64;
let dragRangeDelta = 16;
// ドラッグ中に座標を保持するための変数
let isDragging = false;
let dragStart = [0, 0];
let dragPersonIndex = -1;
let dragMarks = [];
let dragMode = "";
let rotateBaseVector = null;
let history = [];
function getCanvasPosition(event) {
const rect = canvas.getBoundingClientRect();
const x = event.clientX - rect.left;
const y = event.clientY - rect.top;
return [x, y];
}
function forEachMarkedNodes(fn) {
for (let i = 0; i < dragMarks.length; i++) {
for (let j = 0; j < dragMarks[i].length; j++) {
if (dragMarks[i][j]) {
fn(i, j, poseData[i][j]);
}
}
}
}
// Canvas要素上でマウスが押された場合に呼び出される関数
function handleMouseDown(event) {
const p = getCanvasPosition(event);
const [personIndex, nodeIndex, minDist] = getNearestNode(p);
// ドラッグ処理の開始
dragStart = p;
dragMarks = poseData.map(pose => pose.map(node => false));
if (event.altKey || event.ctrlKey || event.shiftKey) {
// dragMarksを設定
dragMarks[personIndex] = dragMarks[personIndex].map((node) => true);
isDragging = true;
if (event.altKey) {
dragMode = "move";
} else if (event.ctrlKey) {
dragMode = "scale";
} else if (event.shiftKey) {
dragMode = "rotate";
rotateBaseVector = [0, 0];
}
console.log(dragMode);
} else if (keyDownFlags["Space"]) {
dragMarks[personIndex] =
dragMarks[personIndex].map(
(node) => distSq(p, node) < dragRange ** 2);
isDragging = dragMarks[personIndex].some((mark) => mark);
dragMode = "move";
} else if (minDist < 16) {
dragMarks[personIndex][nodeIndex] = true;
isDragging = true;
dragMode = "move";
}
}
// Canvas要素上でマウスが動いた場合に呼び出される関数
function handleMouseMove(event) {
mouseCursor = getCanvasPosition(event);
if (isDragging) {
const p = getCanvasPosition(event);
const dragOffset = [p[0] - dragStart[0], p[1] - dragStart[1]];
const lastPoseData = history[history.length - 1];
if (dragMode == "scale") {
// 拡大縮小
let xScale = 1 + dragOffset[0] / canvas.width;
let yScale = 1 + dragOffset[0] / canvas.height;
forEachMarkedNodes((i, j, node) => {
const lp = lastPoseData[i][j];
node[0] = (lp[0] - dragStart[0]) * xScale + dragStart[0];
node[1] = (lp[1] - dragStart[1]) * yScale + dragStart[1];
});
} else if (dragMode == "rotate") {
rotateBaseVector = dragOffset;
if (!event.shiftKey) {
dragMode = "rotate2";
console.log("rotate2");
}
console.log("!");
} else if (dragMode == "rotate2") {
// 回転
let angle = directedAngleTo(rotateBaseVector, dragOffset);
forEachMarkedNodes((i, j, node) => {
const lp = lastPoseData[i][j];
let x = lp[0] - dragStart[0];
let y = lp[1] - dragStart[1];
let sin = Math.sin(angle);
let cos = Math.cos(angle);
node[0] = x * cos - y * sin + dragStart[0];
node[1] = x * sin + y * cos + dragStart[1];
});
} else if (dragMode == "move") {
// 移動
forEachMarkedNodes((i, j, node) => {
const lp = lastPoseData[i][j];
node[0] = lp[0] + dragOffset[0];
node[1] = lp[1] + dragOffset[1];
});
}
}
Redraw();
}
function handleMouseUp(event) {
isDragging = false;
history.push(JSON.parse(JSON.stringify(poseData)));
Redraw();
}
function ModifyDragRange(delta) { dragRange = Math.max(dragRangeDelta, Math.min(512, dragRange + delta)); }
document.addEventListener('wheel', function(event) {
const deltaY = event.deltaY;
if (deltaY < 0) {ModifyDragRange(dragRangeDelta);}
if (0 < deltaY) {ModifyDragRange(-dragRangeDelta);}
Redraw();
window.setTimeout(function() { Redraw(); }, 100);
});
document.addEventListener("keydown", (event) => {
if (event.code == "BracketLeft") { ModifyDragRange(-dragRangeDelta); }
if (event.code == "BracketRight") { ModifyDragRange(dragRangeDelta); }
keyDownFlags[event.code] = true;
Redraw();
});
document.addEventListener("keyup", (event) => {
keyDownFlags[event.code] = false;
Redraw();
if (event.code == "KeyA") {
addPerson();
}
});
function initializePose(jsonData,w,h) {
console.log("initializePose");
if (jsonData != null) {
poseData = makePoseDataFromCandidateAndSubset(jsonData.candidate, jsonData.subset);
} else {
poseData = makePoseDataFromCandidateAndSubset(sampleCandidateSource, [sampleSubsetElementSource]);
}
history.push(JSON.parse(JSON.stringify(poseData)));
canvas = document.getElementById('canvas');
ctx = canvas.getContext('2d');
canvas.addEventListener('mousedown', handleMouseDown);
canvas.addEventListener('mousemove', handleMouseMove);
canvas.addEventListener('mouseup', handleMouseUp);
resizeCanvas(w, h);
}
function savePose() {
const canvasUrl = canvas.toDataURL();
const createEl = document.createElement('a');
createEl.href = canvasUrl;
// This is the name of our downloaded file
createEl.download = "pose.png";
createEl.click();
createEl.remove();
return { "candidate": candidate, "subset": subset };
}
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