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2026-04-30 19:00:06 +00:00
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commit e0650bdbf8
6 changed files with 1266 additions and 353 deletions

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#ifndef GRAPH_VIEWER_H
#define GRAPH_VIEWER_H
const char graph_viewer_html[] PROGMEM = R"rawliteral(
<!DOCTYPE html><html lang="ko"><head>
<meta charset="UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1">
<title> - CANFD Logger</title>
<!DOCTYPE html><html><head>
<meta charset="UTF-8"><meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>CAN FD Signal Graph</title>
<style>
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',sans-serif;background:#0d1117;color:#c9d1d9;font-size:13px}
nav{background:#161b22;border-bottom:1px solid #30363d;padding:8px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
nav a{color:#58a6ff;text-decoration:none;padding:4px 10px;border-radius:6px;font-size:12px}
nav a:hover{background:#21262d} nav a.active{background:#1f6feb;color:#fff}
.title{color:#e6edf3;font-weight:700;font-size:15px}
.container{padding:12px;max-width:1000px}
.card{background:#161b22;border:1px solid #30363d;border-radius:8px;padding:14px;margin-bottom:10px}
.card h3{font-size:12px;color:#8b949e;margin-bottom:12px;text-transform:uppercase}
.btn{padding:5px 12px;border:none;border-radius:6px;cursor:pointer;font-size:12px;font-weight:600}
.btn-blue{background:#1f6feb;color:#fff} .btn-gray{background:#21262d;color:#c9d1d9;border:1px solid #30363d}
input[type=text],input[type=file]{background:#21262d;border:1px solid #30363d;color:#c9d1d9;padding:5px 8px;border-radius:6px;font-size:12px}
.row{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap;margin-bottom:8px}
.field{margin-bottom:4px} label{display:block;font-size:11px;color:#8b949e;margin-bottom:3px}
canvas{width:100%;height:300px;background:#0d1117;border:1px solid #30363d;border-radius:6px}
.info{font-size:11px;color:#8b949e;margin-top:6px}
.stat{display:inline-block;margin-right:16px;color:#8b949e}
.stat b{color:#e6edf3}
:root{--bg:#0e1117;--panel:#161b24;--card:#1c2230;--border:#2d3748;--accent:#43cea2;--accent2:#38ef7d;--blue:#58a6ff;--red:#f85149;--yellow:#e3b341;--text:#e6edf3;--muted:#8b949e;--r:10px;}
*{margin:0;padding:0;box-sizing:border-box;}html,body{height:100%;}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden;font-size:14px;}
.header{background:linear-gradient(135deg,#1a2744 0%,#1e1a3a 100%);padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;}
.header h1{font-size:1.05em;font-weight:700;color:var(--accent);white-space:nowrap;}
.header p{font-size:.8em;color:var(--muted);margin:0;}
.header-spacer{flex:1;}
nav{background:var(--panel);border-bottom:1px solid var(--border);display:flex;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
nav::-webkit-scrollbar{display:none;}
nav .nav-title{color:var(--accent);font-weight:700;font-size:1.0em;padding:10px 14px;white-space:nowrap;border-bottom:2px solid transparent;}
nav a{display:inline-flex;align-items:center;padding:10px 13px;text-decoration:none;color:var(--muted);font-size:.78em;font-weight:500;border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s,border-color .2s;}
nav a:hover{color:var(--text);}
nav a.active{color:var(--accent);border-bottom-color:var(--accent);}
.controls{background:var(--panel);border-bottom:1px solid var(--border);padding:8px 12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.control-group{display:flex;align-items:center;gap:4px;flex-wrap:wrap;}
.control-label{font-size:.72em;color:var(--muted);white-space:nowrap;padding-right:2px;}
.ctrl-sep{width:1px;height:20px;background:var(--border);margin:0 4px;}
.btn{padding:5px 11px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--muted);font-size:.78em;font-weight:600;cursor:pointer;transition:all .15s;white-space:nowrap;font-family:inherit;-webkit-tap-highlight-color:transparent;touch-action:manipulation;}
.btn:hover{border-color:var(--accent);color:var(--accent);}
.btn:active{transform:scale(.96);}
.btn.active{background:rgba(67,206,162,.15);border-color:var(--accent);color:var(--accent);}
.btn-success{border-color:#3fb950;color:#3fb950;}.btn-success.active,.btn-success:hover{background:rgba(63,185,80,.15);}
.btn-danger{border-color:var(--red);color:var(--red);}.btn-danger:hover{background:rgba(248,81,73,.12);}
.btn-info{border-color:var(--blue);color:var(--blue);}.btn-info.active,.btn-info:hover{background:rgba(88,166,255,.15);}
.btn-warning{border-color:var(--yellow);color:var(--yellow);}.btn-warning.active,.btn-warning:hover{background:rgba(227,179,65,.15);}
.stats-bar{display:flex;flex-wrap:wrap;gap:14px;padding:5px 14px;background:var(--bg);border-bottom:1px solid var(--border);font-size:.75em;color:var(--muted);}
.stats-bar strong{color:var(--accent);margin-left:3px;}
.status{padding:4px 10px;border-radius:20px;font-size:.72em;font-weight:600;background:rgba(67,206,162,.12);color:var(--accent);border:1px solid rgba(67,206,162,.3);transition:all .3s;white-space:nowrap;}
.status.disconnected{background:rgba(248,81,73,.12);color:var(--red);border-color:rgba(248,81,73,.3);}
.graphs{padding:10px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,440px),1fr));gap:10px;}
.graph-container{background:var(--card);border-radius:var(--r);border:1px solid var(--border);overflow:hidden;}
.graph-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid var(--border);background:rgba(67,206,162,.05);gap:8px;}
.graph-title{font-size:.82em;font-weight:700;color:var(--accent);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.graph-value{font-size:1em;font-weight:700;color:var(--accent2);font-family:'Courier New',monospace;white-space:nowrap;flex-shrink:0;}
canvas{display:block;width:100%;height:200px;border:none;}
.fd-tag{display:inline-block;padding:1px 5px;border-radius:3px;font-size:.7em;font-weight:700;background:#2d1b69;color:#a371f7;margin-left:4px;}
@media(max-width:480px){.controls{padding:6px 8px;gap:5px;}.ctrl-sep{display:none;}.btn{padding:6px 9px;font-size:.8em;}.header h1{font-size:.95em;}canvas{height:175px;}.stats-bar{gap:8px;font-size:.7em;}}
@media(min-width:768px){canvas{height:230px;}}
@media(min-width:1200px){canvas{height:260px;}}
</style>
</head><body>
<div class="header">
<div><h1>CAN FD Signal Graph</h1><p>Viewing <span id="graph-count">0</span> signals</p></div>
<div class="header-spacer"></div>
<div class="status" id="status-pill">Connecting...</div>
</div>
<nav>
<span class="title"> CANFD Logger</span>
<a href="/"></a><a href="/transmit"></a>
<a href="/graph"></a><a href="/graph-view" class="active"></a>
<span class="nav-title"> CANFD Logger</span>
<a href="/"></a>
<a href="/transmit"></a>
<a href="/graph"></a>
<a href="/graph-view" class="active"> </a>
<a href="/settings"></a>
</nav>
<div class="container">
<div class="card">
<h3>BIN (CAN FD)</h3>
<div class="row">
<div class="field">
<label>BIN ()</label>
<input type="file" id="binFile" accept=".bin" onchange="loadBin()">
</div>
<div class="field" style="margin-bottom:4px">
<button class="btn btn-gray" onclick="document.getElementById('dlUrl').style.display='block'">URL로 </button>
</div>
</div>
<div id="dlUrl" style="display:none;margin-bottom:8px">
<label> URL (SD )</label>
<div class="row">
<input type="text" id="urlInput" placeholder="예: CANFD_20250430_120000.bin" style="width:260px">
<button class="btn btn-blue" onclick="loadUrl()"></button>
</div>
</div>
<div id="fileInfo" class="info"></div>
<div class="controls">
<div class="control-group">
<button class="btn btn-success active" id="btn-start" onclick="startGraphing()"> Start</button>
<button class="btn btn-danger" id="btn-stop" onclick="stopGraphing()"> Stop</button>
</div>
<div class="card" id="analyzeCard" style="display:none">
<h3> </h3>
<div class="row">
<div class="field"><label>CAN ID (hex)</label><input type="text" id="vSigId" value="0x123" style="width:90px"></div>
<div class="field"><label> </label><input type="text" id="vSigStart" value="0" style="width:60px"></div>
<div class="field"><label> </label><input type="text" id="vSigLen" value="8" style="width:60px"></div>
<div class="field"><label></label><input type="text" id="vSigScale" value="1" style="width:60px"></div>
<div class="field"><label></label><input type="text" id="vSigName" value="Signal 1" style="width:90px"></div>
<div class="field" style="margin-bottom:4px"><button class="btn btn-blue" onclick="addSig()">+ </button></div>
</div>
<div id="vSigList" style="display:flex;gap:8px;flex-wrap:wrap;margin:8px 0"></div>
<canvas id="vChart"></canvas>
<div style="margin-top:8px">
<span class="stat"> : <b id="timeRange">-</b></span>
<span class="stat"> : <b id="totalMsgs">0</b></span>
<span class="stat">FD : <b id="fdMsgs">0</b></span>
</div>
<div style="margin-top:8px;display:flex;gap:8px">
<button class="btn btn-gray" onclick="clearSigs()"> </button>
<button class="btn btn-blue" onclick="exportCSV()">CSV </button>
</div>
<div class="ctrl-sep"></div>
<div class="control-group">
<span class="control-label">Scale:</span>
<button class="btn btn-info active" id="btn-index-mode" onclick="setScaleMode('index')">Index</button>
<button class="btn btn-info" id="btn-time-mode" onclick="setScaleMode('time')">Time</button>
</div>
<div class="ctrl-sep"></div>
<div class="control-group">
<span class="control-label">Range:</span>
<button class="btn btn-warning active" id="btn-range-10s" onclick="setRangeMode('10s')">10s</button>
<button class="btn btn-warning" id="btn-range-30s" onclick="setRangeMode('30s')">30s</button>
<button class="btn btn-warning" id="btn-range-all" onclick="setRangeMode('all')">All</button>
</div>
<div class="ctrl-sep"></div>
<div class="control-group">
<span class="control-label">Plot:</span>
<button class="btn btn-info active" id="btn-plot-line" onclick="setPlotMode('line')">Line</button>
<button class="btn btn-info" id="btn-plot-scatter" onclick="setPlotMode('scatter')">Dot</button>
</div>
<div class="ctrl-sep"></div>
<div class="control-group">
<span class="control-label">Sort:</span>
<button class="btn btn-info active" id="btn-sort-selection" onclick="setSortMode('selection')">Order</button>
<button class="btn btn-info" id="btn-sort-name-asc" onclick="setSortMode('name-asc')">AZ</button>
<button class="btn btn-info" id="btn-sort-name-desc" onclick="setSortMode('name-desc')">ZA</button>
</div>
<div class="ctrl-sep"></div>
<div class="control-group">
<button class="btn btn-success" onclick="downloadCSV()"> CSV</button>
<button class="btn btn-danger" onclick="clearData()">Clear</button>
</div>
</div>
<div class="stats-bar">
<span>Points:<strong id="stat-pts">0</strong></span>
<span>Time:<strong id="stat-time">0s</strong></span>
<span>Msgs:<strong id="stat-msgs">0</strong></span>
<span>FPS:<strong id="stat-fps">0</strong></span>
</div>
<div class="graphs" id="graphs"></div>
<script>
const COLORS=['#58a6ff','#3fb950','#d29922','#f85149','#a371f7','#ffa657','#79c0ff','#56d364'];
const RECORD_SIZE=79; // sizeof(CANFDLog): 8+4+1+1+1+64
let records=[], signals=[];
// ════════════════════════════════════════════════════════
// 상수 / 전역
// ════════════════════════════════════════════════════════
const DLC_LEN=[0,1,2,3,4,5,6,7,8,12,16,20,24,32,48,64];
const MAX_PTS=300; // 차트당 최대 데이터 포인트
function parseBin(buf){
records=[];
let n=Math.floor(buf.byteLength/RECORD_SIZE);
let dv=new DataView(buf);
for(let i=0;i<n;i++){
let off=i*RECORD_SIZE;
let tsLo=dv.getUint32(off,true), tsHi=dv.getUint32(off+4,true);
let ts=tsHi*0x100000000+tsLo; // uint64 → JS Number (μs, precision ok for logging)
let id=dv.getUint32(off+8,true);
let dlc=dv.getUint8(off+12);
let len=dv.getUint8(off+13);
let flags=dv.getUint8(off+14);
let data=new Uint8Array(buf,off+15,Math.min(len,64));
records.push({ts,id,dlc,len,flags,data:Array.from(data)});
const COLORS=[
{line:'#FF6384',fill:'rgba(255,99,132,.18)'},{line:'#36A2EB',fill:'rgba(54,162,235,.18)'},
{line:'#FFCE56',fill:'rgba(255,206,86,.18)'},{line:'#4BC0C0',fill:'rgba(75,192,192,.18)'},
{line:'#9966FF',fill:'rgba(153,102,255,.18)'},{line:'#FF9F40',fill:'rgba(255,159,64,.18)'},
{line:'#E74C3C',fill:'rgba(231,76,60,.18)'}, {line:'#3498DB',fill:'rgba(52,152,219,.18)'},
{line:'#2ECC71',fill:'rgba(46,204,113,.18)'},{line:'#F39C12',fill:'rgba(243,156,18,.18)'},
{line:'#9B59B6',fill:'rgba(155,89,182,.18)'},{line:'#1ABC9C',fill:'rgba(26,188,156,.18)'},
{line:'#E67E22',fill:'rgba(230,126,34,.18)'},{line:'#95A5A6',fill:'rgba(149,165,166,.18)'},
{line:'#58a6ff',fill:'rgba(88,166,255,.18)'},{line:'#43cea2',fill:'rgba(67,206,162,.18)'},
{line:'#bc8cff',fill:'rgba(188,140,255,.18)'},{line:'#ffa657',fill:'rgba(255,166,87,.18)'},
{line:'#f85149',fill:'rgba(248,81,73,.18)'}, {line:'#e3b341',fill:'rgba(227,179,65,.18)'}
];
let selectedSignals=[];
let sortMode='selection';
let scaleMode='index';
let rangeMode='10s';
let plotMode='line';
let graphing=false;
let startTime=0;
let totalMsgReceived=0;
let lastCanCounts={};
let lastSignalTimes={};
// ── DOM 캐시 (핫패스에서 getElementById 반복 호출 방지) ─
let valueEls=[]; // valueEls[idx] = DOM element
// ── 차트 배열 ──────────────────────────────────────────
let charts=[]; // SimpleChart[]
// ── RAF 렌더 루프 제어 ──────────────────────────────────
let rafId=null;
let dirty=false; // 새 데이터가 들어왔는지 (dirty=true → 다음 프레임에 draw)
let lastFpsTime=0;
let fpsCount=0;
let fps=0;
// ════════════════════════════════════════════════════════
// ★ SimpleChart — 원형 버퍼(circular buffer) 기반
// Array.shift() O(n) 제거 → head 포인터만 이동 O(1)
// ════════════════════════════════════════════════════════
class SimpleChart {
constructor(canvas, signal, colorIndex) {
this.canvas = canvas;
this.ctx = canvas.getContext('2d', {alpha:false}); // alpha:false → 합성 생략
this.signal = signal;
this.colors = COLORS[colorIndex % COLORS.length];
this.currentValue = NaN;
this.currentText = '';
// 원형 버퍼: data[head % MAX_PTS] 에 쓰고, head만 증가
this._buf = new Float64Array(MAX_PTS); // 64bit float 타입 배열 → GC 없음
this._tbuf = new Float64Array(MAX_PTS); // 시간 버퍼
this._head = 0; // 다음에 쓸 인덱스 (절대값, MAX_PTS로 mod)
this._count = 0; // 실제 저장된 포인트 수 (최대 MAX_PTS)
this.width = 0; this.height = 0;
this._syncCanvas();
// ★ resize 리스너: 인스턴스별 등록 금지 → 전역 리스너 1개로 처리(아래)
}
let total=records.length;
let fdCnt=records.filter(r=>(r.flags&0x20)!==0).length;
document.getElementById('totalMsgs').textContent=total.toLocaleString();
document.getElementById('fdMsgs').textContent=fdCnt.toLocaleString();
if(total>0){
let t0=records[0].ts, t1=records[total-1].ts;
document.getElementById('timeRange').textContent=((t1-t0)/1e6).toFixed(3)+'s';
document.getElementById('fileInfo').textContent=
` ${total.toLocaleString()} | FD: ${fdCnt.toLocaleString()} | : ${((t1-t0)/1e6).toFixed(3)}s`;
// canvas 물리 픽셀 동기화
_syncCanvas() {
const rect = this.canvas.getBoundingClientRect();
if (!rect.width) return;
const dpr = window.devicePixelRatio || 1;
this.canvas.width = rect.width * dpr;
this.canvas.height = rect.height * dpr;
this.ctx.setTransform(dpr, 0, 0, dpr, 0, 0);
this.width = rect.width;
this.height = rect.height;
}
document.getElementById('analyzeCard').style.display='block';
draw();
}
function loadBin(){
let f=document.getElementById('binFile').files[0]; if(!f) return;
document.getElementById('fileInfo').textContent=' ...';
let r=new FileReader();
r.onload=e=>parseBin(e.target.result);
r.readAsArrayBuffer(f);
}
// O(1) 삽입
push(value, time) {
const i = this._head % MAX_PTS;
this._buf[i] = value;
this._tbuf[i] = time;
this._head++;
if (this._count < MAX_PTS) this._count++;
function loadUrl(){
let fn=document.getElementById('urlInput').value.trim(); if(!fn) return;
document.getElementById('fileInfo').textContent=' ...';
fetch('/download?file='+fn).then(r=>r.arrayBuffer()).then(parseBin)
.catch(e=>{ document.getElementById('fileInfo').textContent=' : '+e; });
}
function extractBits(data,start,len){
let v=0;
for(let i=0;i<len;i++){
let bit=start+i,b=Math.floor(bit/8),bit2=7-(bit%8);
if(b<data.length&&(data[b]&(1<<bit2))) v|=(1<<(len-1-i));
this.currentValue = value;
if (this.signal.valueTable && this.signal.valueTable[value] !== undefined)
this.currentText = this.signal.valueTable[value];
else
this.currentText = '';
}
return v;
}
function addSig(){
if(signals.length>=8) return alert(' 8');
let id=parseInt(document.getElementById('vSigId').value,16);
signals.push({id,startBit:parseInt(document.getElementById('vSigStart').value)||0,
bitLen:parseInt(document.getElementById('vSigLen').value)||8,
scale:parseFloat(document.getElementById('vSigScale').value)||1,
name:document.getElementById('vSigName').value||'Signal',
color:COLORS[signals.length%COLORS.length]});
renderSigList(); draw();
}
function clearSigs(){signals=[];renderSigList();draw();}
function removeSig(i){signals.splice(i,1);renderSigList();draw();}
function renderSigList(){
let h='';
signals.forEach((s,i)=>h+=`<span style="background:#21262d;border:1px solid #30363d;border-radius:12px;padding:3px 10px;font-size:11px;display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:50%;background:${s.color};display:inline-block"></span>${s.name}<span onclick="removeSig(${i})" style="cursor:pointer;color:#8b949e"></span></span>`);
document.getElementById('vSigList').innerHTML=h;
}
// 표시할 데이터 추출 (슬라이스, 복사 최소화)
_getDisplay() {
if (!this._count) return null;
const cv=document.getElementById('vChart');
const ctx=cv.getContext('2d');
function draw(){
let W=cv.offsetWidth, H=cv.offsetHeight;
cv.width=W; cv.height=H;
ctx.fillStyle='#0d1117';ctx.fillRect(0,0,W,H);
if(!records.length||!signals.length){
ctx.fillStyle='#8b949e';ctx.font='13px sans-serif';ctx.textAlign='center';
ctx.fillText(records.length?' .':'BIN .',W/2,H/2); return;
// all 모드 → 전체
let n = this._count;
if (rangeMode !== 'all' && scaleMode === 'index') {
const N = rangeMode === '30s' ? 150 : 60;
n = Math.min(n, N);
}
// 원형 버퍼에서 순서대로 추출
const data = new Float64Array(n);
const times = new Float64Array(n);
const start = this._head - n;
for (let i = 0; i < n; i++) {
const j = (start + i) & (MAX_PTS - 1); // MAX_PTS가 2의 거듭제곱이면 mod 불필요
// MAX_PTS=300은 2의 거듭제곱이 아니므로 % 사용
const k = ((start + i) % MAX_PTS + MAX_PTS) % MAX_PTS;
data[i] = this._buf[k];
times[i] = this._tbuf[k];
}
// time 모드에서 시간 윈도우 필터
if (rangeMode !== 'all' && scaleMode === 'time') {
const wSec = rangeMode === '30s' ? 30 : 10;
const latest = times[times.length - 1];
const cutoff = latest - wSec;
let fi = 0;
while (fi < times.length && times[fi] < cutoff) fi++;
if (fi > 0) return { data: data.subarray(fi), times: times.subarray(fi) };
}
return { data, times };
}
// 각 신호별 포인트 계산
let seriesList=signals.map(s=>{
let pts=records.filter(r=>r.id===s.id).map(r=>({x:r.ts,y:extractBits(r.data,s.startBit,s.bitLen)*s.scale}));
return {s,pts};
}).filter(s=>s.pts.length>0);
if(!seriesList.length) return;
let allPts=seriesList.flatMap(s=>s.pts);
let minX=Math.min(...allPts.map(p=>p.x)), maxX=Math.max(...allPts.map(p=>p.x));
let minY=Math.min(...allPts.map(p=>p.y)), maxY=Math.max(...allPts.map(p=>p.y));
if(minY===maxY){minY-=1;maxY+=1;}
let pad=35;
function toX(x){return pad+(x-minX)/(maxX-minX||1)*(W-pad*2);}
function toY(y){return H-pad-(y-minY)/(maxY-minY)*(H-pad*2);}
// 격자
ctx.strokeStyle='#21262d';ctx.lineWidth=1;
for(let i=0;i<=4;i++){let y=pad+i*(H-pad*2)/4;ctx.beginPath();ctx.moveTo(pad,y);ctx.lineTo(W-pad,y);ctx.stroke();}
ctx.fillStyle='#8b949e';ctx.font='10px sans-serif';ctx.textAlign='right';
for(let i=0;i<=4;i++){let y=pad+i*(H-pad*2)/4;let v=(maxY-(maxY-minY)*i/4).toFixed(2);ctx.fillText(v,pad-4,y+4);}
// X축 레이블
ctx.textAlign='center';
for(let i=0;i<=4;i++){let x=pad+i*(W-pad*2)/4;let t=((minX+(maxX-minX)*i/4-minX)/1e6).toFixed(2)+'s';ctx.fillText(t,x,H-4);}
// 신호 그리기
seriesList.forEach(({s,pts})=>{
ctx.strokeStyle=s.color;ctx.lineWidth=1.5;ctx.beginPath();
pts.forEach((p,i)=>{let x=toX(p.x),y=toY(p.y);i===0?ctx.moveTo(x,y):ctx.lineTo(x,y);});
draw() {
const ctx = this.ctx, W = this.width, H = this.height;
if (!W || !H) return;
const PAD_L=45, PAD_T=8, PAD_B=22, PAD_R=8;
const gW = W-PAD_L-PAD_R, gH = H-PAD_T-PAD_B;
ctx.fillStyle = '#0e1117';
ctx.fillRect(0, 0, W, H);
if (!this._count) {
ctx.fillStyle = '#374151';
ctx.font = '12px monospace';
ctx.textAlign = 'center';
ctx.fillText('Waiting for data...', W/2, H/2);
return;
}
const disp = this._getDisplay();
if (!disp) return;
const { data: dd, times: dt } = disp;
const n = dd.length;
if (!n) return;
// ★ Math.min/max(...spread) 대신 루프 → 스택 오버플로우 방지
let minV = dd[0], maxV = dd[0];
for (let i = 1; i < n; i++) {
if (dd[i] < minV) minV = dd[i];
if (dd[i] > maxV) maxV = dd[i];
}
const range = maxV - minV || 1;
// Y 그리드
ctx.lineWidth = 0.5;
for (let i = 0; i <= 4; i++) {
const y = PAD_T + (gH/4)*i;
ctx.strokeStyle = (i===4) ? '#2d3748' : '#1a2035';
ctx.beginPath(); ctx.moveTo(PAD_L, y); ctx.lineTo(PAD_L+gW, y); ctx.stroke();
const v = maxV - (range/4)*i;
let lab;
if (this.signal.valueTable) {
const rv = Math.round(v);
lab = (this.signal.valueTable[rv] !== undefined)
? String(this.signal.valueTable[rv]).substring(0, 7)
: v.toFixed(1);
} else {
lab = Math.abs(v) < 100 ? v.toFixed(2) : v.toFixed(0);
}
ctx.fillStyle='#6b7280'; ctx.font='9px monospace'; ctx.textAlign='right';
ctx.fillText(lab, PAD_L-3, y+3);
}
// X 그리드
for (let i = 0; i <= 4; i++) {
const x = PAD_L + (gW/4)*i;
ctx.strokeStyle='#1a2035'; ctx.lineWidth=0.5;
ctx.beginPath(); ctx.moveTo(x, PAD_T); ctx.lineTo(x, PAD_T+gH); ctx.stroke();
}
// 축선
ctx.strokeStyle='#2d3748'; ctx.lineWidth=1;
ctx.beginPath();
ctx.moveTo(PAD_L, PAD_T); ctx.lineTo(PAD_L, PAD_T+gH); ctx.lineTo(PAD_L+gW, PAD_T+gH);
ctx.stroke();
ctx.fillStyle=s.color;ctx.font='11px monospace';ctx.textAlign='left';
let last=pts[pts.length-1];
ctx.fillText(s.name+': '+last.y.toFixed(2),toX(last.x)+4,toY(last.y)-4);
});
// 좌표 변환
let minTime=0, timeRange=1;
if (scaleMode==='time' && n>1) {
minTime=dt[0]; timeRange=dt[n-1]-minTime||1;
}
const xOf = i => {
if (scaleMode==='time' && n>1) return PAD_L+((dt[i]-minTime)/timeRange)*gW;
return PAD_L + (n>1 ? (i/(n-1))*gW : 0);
};
const yOf = v => PAD_T+gH - ((v-minV)/range)*gH;
const lc = this.colors.line;
// Fill
ctx.beginPath();
ctx.moveTo(xOf(0), PAD_T+gH);
for (let i=0; i<n; i++) ctx.lineTo(xOf(i), yOf(dd[i]));
ctx.lineTo(xOf(n-1), PAD_T+gH);
ctx.closePath();
ctx.fillStyle = this.colors.fill;
ctx.fill();
// Line
if (plotMode==='line' && n>1) {
ctx.strokeStyle=lc; ctx.lineWidth=1.8; ctx.lineJoin='round';
ctx.beginPath(); ctx.moveTo(xOf(0), yOf(dd[0]));
for (let i=1; i<n; i++) ctx.lineTo(xOf(i), yOf(dd[i]));
ctx.stroke();
}
// 점 (마지막만 or scatter)
for (let i=0; i<n; i++) {
const isLast = (i===n-1);
if (plotMode==='scatter' || isLast) {
const r = isLast ? 4.5 : 2.5;
ctx.fillStyle = isLast ? '#ffffff' : lc;
ctx.strokeStyle = lc;
ctx.lineWidth = isLast ? 1.5 : 0;
ctx.beginPath();
ctx.arc(xOf(i), yOf(dd[i]), r, 0, Math.PI*2);
ctx.fill();
if (isLast) ctx.stroke();
}
}
// X 라벨
ctx.fillStyle='#6b7280'; ctx.font='9px monospace'; ctx.textAlign='center';
ctx.fillText(dt[0].toFixed(1)+'s', PAD_L, PAD_T+gH+16);
ctx.fillText(dt[n-1].toFixed(1)+'s', PAD_L+gW, PAD_T+gH+16);
if (n>4) {
const mid=Math.floor(n/2);
ctx.fillText(dt[mid].toFixed(1)+'s', PAD_L+gW*.5, PAD_T+gH+16);
}
}
clear() {
this._head=0; this._count=0;
this.currentValue=NaN; this.currentText='';
}
}
function exportCSV(){
if(!records.length) return;
let cols=['Time_us','ID','DLC','Len','FD','BRS','EXT'];
signals.forEach(s=>cols.push(s.name));
let rows=[cols.join(',')];
records.forEach(r=>{
let row=[r.ts,(r.id>>>0).toString(16).toUpperCase(),r.dlc,r.len,
(r.flags&0x20)?1:0,(r.flags&0x10)?1:0,(r.flags&0x80)?1:0];
signals.forEach(s=>{
if(s.id===r.id) row.push((extractBits(r.data,s.startBit,s.bitLen)*s.scale).toFixed(4));
else row.push('');
});
rows.push(row.join(','));
// ════════════════════════════════════════════════════════
// ★ 전역 resize 리스너 (1개만) + 디바운스
// ════════════════════════════════════════════════════════
let resizeTimer=null;
window.addEventListener('resize', () => {
clearTimeout(resizeTimer);
resizeTimer = setTimeout(() => {
charts.forEach(c => { c._syncCanvas(); });
dirty = true;
}, 150);
});
// ════════════════════════════════════════════════════════
// ★ RAF 렌더 루프 — 1프레임에 모든 차트를 한 번씩 draw
// dirty 플래그가 false면 skip (CPU 0%)
// ════════════════════════════════════════════════════════
function renderLoop(ts) {
rafId = requestAnimationFrame(renderLoop);
// FPS 계산 (매 60프레임마다 갱신)
fpsCount++;
if (ts - lastFpsTime >= 1000) {
fps = fpsCount;
fpsCount = 0;
lastFpsTime = ts;
document.getElementById('stat-fps').textContent = fps;
// 통계 갱신 (1초마다)
updateStatistics();
}
if (!dirty) return; // ★ 새 데이터 없으면 그리지 않음 → CPU 0
dirty = false;
charts.forEach(c => c.draw());
}
// ════════════════════════════════════════════════════════
// 신호 디코딩 (통합 단일 함수)
// - CAN FD 64바이트 지원
// - 실제 메시지 길이만큼만 패딩 (불필요한 64개 push 제거)
// ════════════════════════════════════════════════════════
function decodeSignal(signal, rawData) {
// rawData: Uint8Array | number[] | hex string
let bytes;
if (typeof rawData === 'string') {
const clean = rawData.replace(/\s/g,'').toUpperCase();
const len = Math.min(clean.length >> 1, 64);
bytes = new Uint8Array(len);
for (let i=0; i<len; i++)
bytes[i] = parseInt(clean.substring(i*2, i*2+2), 16) || 0;
} else {
// Array or Uint8Array
bytes = rawData;
}
const bLen = bytes.length;
let raw = 0;
if (signal.byteOrder === 'intel') {
for (let i=0; i<signal.bitLength; i++) {
const bp = signal.startBit + i;
const by = bp >> 3, bi = bp & 7;
if (by < bLen && (bytes[by] >> bi) & 1) raw |= (1 << i);
}
} else {
// Motorola
for (let i=0; i<signal.bitLength; i++) {
const bp = signal.startBit - i;
const by = bp >> 3, bi = 7 - (bp & 7);
if (by >= 0 && by < bLen && (bytes[by] >> bi) & 1)
raw |= (1 << (signal.bitLength - 1 - i));
}
}
if (signal.signed && (raw & (1 << (signal.bitLength-1)))) raw -= (1 << signal.bitLength);
return raw * signal.factor + signal.offset;
}
// ════════════════════════════════════════════════════════
// WebSocket
// ════════════════════════════════════════════════════════
let ws;
function initWebSocket() {
ws = new WebSocket('ws://' + window.location.hostname + ':81');
ws.onopen = () => updateStatus('Connected', false);
ws.onclose = () => { updateStatus('Disconnected', true); setTimeout(initWebSocket, 3000); };
ws.onmessage = e => {
if (!graphing) return;
let data;
try { data = JSON.parse(e.data); } catch { return; }
if (data.type === 'canBatch')
processCANBatch(data.messages);
else if ((data.type === 'update' || data.type === 'status') && data.messages?.length)
processCANUpdate(data.messages);
};
}
function updateStatus(text, isErr) {
const el = document.getElementById('status-pill');
if (el) { el.textContent = text; el.className = 'status' + (isErr ? ' disconnected' : ''); }
}
// ── update 타입 처리 ──────────────────────────────────
function processCANUpdate(messages) {
const elapsed = (Date.now() - startTime) / 1000;
const sorted = _sortedSignals();
for (let mi=0; mi<messages.length; mi++) {
const canMsg = messages[mi];
let msgId = canMsg.id;
if (typeof msgId === 'string') msgId = parseInt(msgId, 16) || 0;
if (msgId & 0x80000000) msgId &= 0x1FFFFFFF;
const prevCnt = lastCanCounts[msgId] || 0;
const curCnt = canMsg.count || 0;
const diff = curCnt - prevCnt;
if (diff <= 0) continue;
lastCanCounts[msgId] = curCnt;
totalMsgReceived += diff;
// ★ data → Uint8Array (변환 1회만)
let bytes;
if (Array.isArray(canMsg.data)) {
bytes = new Uint8Array(canMsg.data);
} else if (typeof canMsg.data === 'string') {
const h = canMsg.data.replace(/\s/g,'').toUpperCase();
const l = Math.min(h.length >> 1, 64);
bytes = new Uint8Array(l);
for (let i=0; i<l; i++) bytes[i] = parseInt(h.substring(i*2,i*2+2),16)||0;
} else continue;
for (let si=0; si<sorted.length; si++) {
const sig = sorted[si];
if (sig.messageId !== msgId) continue;
const chart = charts[si]; // ★ charts[] 직접 인덱싱
if (!chart) continue;
const value = decodeSignal(sig, bytes);
const key = msgId + '|' + sig.name;
const lastT = lastSignalTimes[key] || 0;
const delta = elapsed - lastT;
lastSignalTimes[key] = elapsed;
// count 만큼 데이터 보간 삽입
for (let i=0; i<diff; i++) {
chart.push(value, lastT + (delta/diff)*i);
}
// ★ DOM 캐시 사용 (getElementById 반복 호출 없음)
const el = valueEls[si];
if (el) {
el.textContent = (sig.valueTable && sig.valueTable[value] !== undefined)
? sig.valueTable[value]
: value.toFixed(2) + (sig.unit ? ' ' + sig.unit : '');
}
}
}
dirty = true; // ★ draw 요청 (RAF 루프가 처리)
}
// ── canBatch 타입 처리 ────────────────────────────────
function processCANBatch(messages) {
const elapsed = (Date.now() - startTime) / 1000;
const sorted = _sortedSignals();
totalMsgReceived += messages.length;
for (let mi=0; mi<messages.length; mi++) {
const canMsg = messages[mi];
let msgId = parseInt((canMsg.id||'').toString().replace(/0x/i,''), 16) || 0;
if (msgId & 0x80000000) msgId &= 0x1FFFFFFF;
for (let si=0; si<sorted.length; si++) {
const sig = sorted[si];
if (sig.messageId !== msgId) continue;
const chart = charts[si];
if (!chart) continue;
const value = decodeSignal(sig, canMsg.data);
chart.push(value, elapsed);
const el = valueEls[si];
if (el) {
el.textContent = (sig.valueTable && sig.valueTable[value] !== undefined)
? sig.valueTable[value]
: value.toFixed(2) + (sig.unit ? ' ' + sig.unit : '');
}
}
}
dirty = true;
}
// ════════════════════════════════════════════════════════
// 그래프 생성 / 정렬
// ════════════════════════════════════════════════════════
function _sortedSignals() {
if (sortMode === 'name-asc') return [...selectedSignals].sort((a,b)=>a.name.localeCompare(b.name));
if (sortMode === 'name-desc') return [...selectedSignals].sort((a,b)=>b.name.localeCompare(a.name));
return selectedSignals;
}
function createGraphs() {
const gd = document.getElementById('graphs');
gd.innerHTML = '';
charts = [];
valueEls = [];
const sorted = _sortedSignals();
sorted.forEach((sig, idx) => {
const ct = document.createElement('div');
ct.className = 'graph-container';
const cv = document.createElement('canvas');
cv.id = 'chart-' + idx;
const fdTag = sig.isFD ? '<span class="fd-tag">FD</span>' : '';
ct.innerHTML =
'<div class="graph-header">' +
'<div class="graph-title">' + sig.name + fdTag +
' <span style="color:#6b7280;font-size:.85em;">(0x' + sig.messageId.toString(16).toUpperCase() + ')</span>' +
(sig.unit ? ' <span style="color:#6b7280;font-size:.85em;">[' + sig.unit + ']</span>' : '') +
'</div><div class="graph-value" id="val-' + idx + '">-</div></div>';
ct.appendChild(cv);
gd.appendChild(ct);
const chart = new SimpleChart(cv, sig, idx);
charts.push(chart);
valueEls.push(document.getElementById('val-' + idx)); // ★ DOM 캐시
});
let blob=new Blob([rows.join('\n')],{type:'text/csv'});
let a=document.createElement('a');a.href=URL.createObjectURL(blob);
a.download='canfd_export.csv';a.click();
document.getElementById('graph-count').textContent = sorted.length;
dirty = true;
}
function setSortMode(mode) {
sortMode = mode;
document.querySelectorAll('[id^="btn-sort-"]').forEach(b => b.classList.remove('active'));
document.getElementById('btn-sort-' + mode)?.classList.add('active');
// 기존 데이터 보존하며 재배열
const gd = document.getElementById('graphs');
const old = charts.slice();
const origSigs = selectedSignals.slice();
const sorted = _sortedSignals();
gd.innerHTML = '';
charts = [];
valueEls = [];
sorted.forEach((sig, ni) => {
const oi = origSigs.findIndex(s => s.name===sig.name && s.messageId===sig.messageId);
const ct = document.createElement('div');
ct.className = 'graph-container';
const cv = document.createElement('canvas');
ct.innerHTML =
'<div class="graph-header">' +
'<div class="graph-title">' + sig.name +
(sig.isFD ? '<span class="fd-tag">FD</span>' : '') +
' <span style="color:#6b7280;font-size:.85em;">(0x' + sig.messageId.toString(16).toUpperCase() + ')</span>' +
(sig.unit ? ' <span style="color:#6b7280;font-size:.85em;">[' + sig.unit + ']</span>' : '') +
'</div><div class="graph-value" id="val-' + ni + '">-</div></div>';
ct.appendChild(cv);
gd.appendChild(ct);
const ch = new SimpleChart(cv, sig, ni);
if (oi >= 0 && old[oi]) {
// 버퍼 복사
ch._buf = old[oi]._buf.slice();
ch._tbuf = old[oi]._tbuf.slice();
ch._head = old[oi]._head;
ch._count = old[oi]._count;
ch.currentValue = old[oi].currentValue;
ch.currentText = old[oi].currentText;
}
charts.push(ch);
valueEls.push(document.getElementById('val-' + ni));
});
dirty = true;
}
// ════════════════════════════════════════════════════════
// 제어 함수
// ════════════════════════════════════════════════════════
function startGraphing() {
if (!graphing) {
graphing = true; startTime = Date.now();
lastCanCounts = {}; lastSignalTimes = {};
document.getElementById('btn-start').classList.add('active');
document.getElementById('btn-stop').classList.remove('active');
updateStatus('Recording', false);
}
}
function stopGraphing() {
graphing = false;
document.getElementById('btn-start').classList.remove('active');
document.getElementById('btn-stop').classList.add('active');
updateStatus('Paused', false);
}
function setScaleMode(mode) {
scaleMode = mode;
document.getElementById('btn-index-mode').classList.toggle('active', mode==='index');
document.getElementById('btn-time-mode').classList.toggle('active', mode==='time');
dirty = true;
}
function setRangeMode(mode) {
rangeMode = mode;
['10s','30s','all'].forEach(m => {
const el = document.getElementById('btn-range-'+m);
if (el) el.classList.toggle('active', m===mode);
});
dirty = true;
}
function setPlotMode(mode) {
plotMode = mode;
document.getElementById('btn-plot-line').classList.toggle('active', mode==='line');
document.getElementById('btn-plot-scatter').classList.toggle('active', mode==='scatter');
dirty = true;
}
function updateStatistics() {
let total = 0;
charts.forEach(c => total += c._count);
document.getElementById('stat-pts').textContent = total;
document.getElementById('stat-msgs').textContent = totalMsgReceived;
document.getElementById('stat-time').textContent =
graphing ? ((Date.now()-startTime)/1000).toFixed(1)+'s' : '-';
}
function clearData() {
if (!confirm(' ?')) return;
charts.forEach(c => c.clear());
valueEls.forEach(el => { if (el) el.textContent = '-'; });
lastCanCounts = {}; lastSignalTimes = {};
totalMsgReceived = 0;
if (graphing) startTime = Date.now();
dirty = true;
updateStatistics();
}
function downloadCSV() {
if (!charts.length) { alert('No data!'); return; }
const sorted = _sortedSignals();
let csv = 'Time(s)';
sorted.forEach(s => {
const u = s.unit ? ' ['+s.unit+']' : '';
csv += ',' + s.name + u;
if (s.valueTable) csv += ',' + s.name + '_Text';
});
csv += '\n';
let maxLen = 0;
charts.forEach(c => { if (c._count > maxLen) maxLen = c._count; });
// 원형 버퍼에서 순서대로 읽기
for (let i=0; i<maxLen; i++) {
let row='', tv='';
sorted.forEach((s, idx) => {
const ch = charts[idx];
if (!ch || i >= ch._count) { row+=','; if (s.valueTable) row+=','; return; }
const k = ((ch._head - ch._count + i) % MAX_PTS + MAX_PTS) % MAX_PTS;
const v = ch._buf[k];
const t = ch._tbuf[k];
if (tv==='') tv = t.toFixed(3);
row += ',' + v.toFixed(6);
if (s.valueTable) {
const txt = s.valueTable[v] !== undefined ? s.valueTable[v] : '';
row += ',"' + txt + '"';
}
});
if (tv !== '') csv += tv + row + '\n';
}
const ts = new Date().toISOString().replace(/[:.]/g,'-').slice(0,-5);
const a = document.createElement('a');
a.href = URL.createObjectURL(new Blob([csv], {type:'text/csv;charset=utf-8;'}));
a.download = 'canfd_' + ts + '.csv';
document.body.appendChild(a); a.click(); document.body.removeChild(a);
}
// ════════════════════════════════════════════════════════
// localStorage 데이터 로드
// ════════════════════════════════════════════════════════
function loadData() {
try {
const sigs = localStorage.getItem('selected_signals');
const sm = localStorage.getItem('sort_mode');
if (!sigs) {
alert(' .\n/graph DBC .');
window.close(); return false;
}
if (sm) sortMode = sm;
selectedSignals = JSON.parse(sigs);
return true;
} catch(e) {
alert(' : ' + e.message);
window.close(); return false;
}
}
// ════════════════════════════════════════════════════════
// 진입점
// ════════════════════════════════════════════════════════
if (loadData()) {
createGraphs();
initWebSocket();
startGraphing();
requestAnimationFrame(renderLoop); // ★ RAF 루프 시작
}
</script>
</body></html>
)rawliteral";
#endif
#endif