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esp32s3_canlogger_mcp2515/graph_viewer.h
2025-12-08 21:10:33 +00:00

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#ifndef GRAPH_VIEWER_H
#define GRAPH_VIEWER_H
const char graph_viewer_html[] PROGMEM = R"rawliteral(
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CAN Signal Graph Viewer</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); padding: 10px;
color: white;
overflow-x: hidden;
}
.header {
background: linear-gradient(135deg, #667eea, #764ba2);
padding: 15px;
text-align: center;
box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.header h1 { font-size: 1.5em; }
.header p { font-size: 0.9em; opacity: 0.9; margin-top: 5px; }
/* ========== 통일된 네비게이션 ========== */
.nav {
background: #f8f9fa;
padding: 0;
border-bottom: 2px solid #e0e0e0;
display: flex;
flex-wrap: wrap;
justify-content: center;
align-items: center;
}
.nav a {
display: inline-flex;
align-items: center;
justify-content: center;
padding: 15px 20px;
text-decoration: none;
color: #666;
font-weight: 500;
font-size: 0.95em;
border-bottom: 3px solid transparent;
transition: all 0.3s;
white-space: nowrap;
min-width: 120px;
}
.nav a:hover {
background: #e9ecef;
color: #667eea;
transform: translateY(-2px);
}
.nav a.active {
color: #764ba2;
border-bottom-color: #764ba2;
background: white;
font-weight: 600;
}
.controls {
background: #2a2a2a;
padding: 10px 15px;
display: flex;
gap: 10px;
justify-content: center;
flex-wrap: wrap;
box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.control-group {
display: flex;
gap: 10px;
align-items: center;
}
.control-label {
font-size: 0.85em;
color: #aaa;
}
.btn {
padding: 8px 20px;
border: none;
border-radius: 5px;
font-size: 0.9em;
font-weight: 600;
cursor: pointer;
transition: all 0.3s;
}
.btn-success { background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%); color: white; }
.btn-danger { background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%); color: white; }
.btn-info { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
.btn-warning { background: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%); color: white; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.3); }
.btn.active {
box-shadow: inset 0 3px 5px rgba(0,0,0,0.3);
transform: translateY(0);
}
.graphs {
padding: 15px;
display: grid;
grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
gap: 15px;
}
.graph-container {
background: #2a2a2a;
padding: 15px;
border-radius: 10px;
border: 2px solid #3a3a3a;
}
.graph-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 10px;
padding-bottom: 8px;
border-bottom: 2px solid #43cea2;
}
.graph-title {
font-size: 1em;
font-weight: 600;
color: #43cea2;
}
.graph-value {
font-size: 1.2em;
font-weight: 700;
color: #38ef7d;
font-family: 'Courier New', monospace;
}
canvas {
width: 100%;
height: 250px;
border: 1px solid #3a3a3a;
border-radius: 5px;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); padding: 10px;
}
.status {
position: fixed;
top: 10px;
right: 10px;
padding: 10px 15px;
border-radius: 5px;
background: #2a2a2a;
border: 2px solid #43cea2;
font-size: 0.9em;
z-index: 1000;
}
.status.disconnected {
border-color: #eb3349;
background: #3a2a2a;
}
/* ========== 반응형 디자인 ========== */
@media (max-width: 768px) {
body {
padding: 5px;
}
.container {
border-radius: 10px;
}
.header {
padding: 15px;
flex-direction: column;
text-align: center;
gap: 10px;
}
.header h1 {
font-size: 1.4em;
}
.nav {
padding: 5px;
}
.nav a {
padding: 12px 15px;
font-size: 0.85em;
}
.content {
padding: 15px;
}
.btn {
padding: 10px 20px;
font-size: 13px;
}
}
@media (min-width: 769px) and (max-width: 1024px) {
.header h1 {
font-size: 1.6em;
}
.nav a {
padding: 13px 18px;
font-size: 0.9em;
}
.content {
padding: 25px;
}
}
@media (min-width: 1025px) {
.content {
padding: 30px;
}
}
</style>
</head>
<body>
<div class="header">
<h1>Real-time CAN Signal Graphs (Scatter Mode)</h1>
<p>Viewing <span id="graph-count">0</span> signals</p>
</div>
<div class="nav">
<a href="/">📊 Monitor</a>
<a href="/transmit">📤 Transmit</a>
<a href="/graph">📈 Graph</a>
<a href="/graph-view" class="active">📊 Graph View</a>
<a href="/settings"> Settings</a>
<a href="/serial">📟 Serial1</a>
<a href="/serial2">📟 Serial2</a>
</div>
<div class="controls">
<div class="control-group">
<button class="btn btn-success" onclick="startGraphing()">Start</button>
<button class="btn btn-danger" onclick="stopGraphing()">Stop</button>
<button class="btn btn-danger" onclick="window.close()">Close</button>
</div>
<div class="control-group">
<span class="control-label">X-Axis 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-Based</button>
</div>
<div class="control-group">
<span class="control-label">X-Axis Range:</span>
<button class="btn btn-warning active" id="btn-range-10s" onclick="setRangeMode('10s')">10s Window</button>
<button class="btn btn-warning" id="btn-range-all" onclick="setRangeMode('all')">All Time</button>
</div>
<div class="control-group">
<span class="control-label">Sort by:</span>
<button class="btn btn-info active" id="btn-sort-selection" onclick="setSortMode('selection')">Selection Order</button>
<button class="btn btn-info" id="btn-sort-name-asc" onclick="setSortMode('name-asc')">Name (A→Z)</button>
<button class="btn btn-info" id="btn-sort-name-desc" onclick="setSortMode('name-desc')">Name (Z→A)</button>
</div>
<div class="control-group">
<button class="btn btn-success" onclick="downloadCSV()" style="background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);">
📥 Download CSV
</button>
<button class="btn btn-danger" onclick="clearData()" style="background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);">
🗑 Clear Data
</button>
</div>
</div>
<div class="status" id="status">Connecting...</div>
<div style="padding: 10px 15px; background: #2a2a2a; color: #aaa; font-size: 0.85em; display: flex; justify-content: space-between; align-items: center;">
<span>Data Points: <strong id="data-point-count" style="color: #43cea2;">0</strong></span>
<span>Recording Time: <strong id="recording-time" style="color: #43cea2;">0s</strong></span>
<span>Messages Received: <strong id="msg-received" style="color: #43cea2;">0</strong></span>
</div>
<div class="graphs" id="graphs"></div>
<script>
let ws;
let charts = {};
let graphing = false;
let startTime = 0;
let selectedSignals = [];
let dbcData = {};
let lastTimestamps = {};
let sortMode = 'selection';
const MAX_DATA_POINTS = 60;
let scaleMode = 'index';
let rangeMode = '10s';
let totalMsgReceived = 0;
let lastCanCounts = {}; // ★ 각 CAN ID별 마지막 count 저장
const COLORS = [
{line: '#FF6384', fill: 'rgba(255, 99, 132, 0.2)'},
{line: '#36A2EB', fill: 'rgba(54, 162, 235, 0.2)'},
{line: '#FFCE56', fill: 'rgba(255, 206, 86, 0.2)'},
{line: '#4BC0C0', fill: 'rgba(75, 192, 192, 0.2)'},
{line: '#9966FF', fill: 'rgba(153, 102, 255, 0.2)'},
{line: '#FF9F40', fill: 'rgba(255, 159, 64, 0.2)'},
{line: '#FF6384', fill: 'rgba(255, 99, 132, 0.2)'},
{line: '#4BC0C0', fill: 'rgba(75, 192, 192, 0.2)'},
{line: '#FFCE56', fill: 'rgba(255, 206, 86, 0.2)'},
{line: '#9966FF', fill: 'rgba(153, 102, 255, 0.2)'},
{line: '#36A2EB', fill: 'rgba(54, 162, 235, 0.2)'},
{line: '#FF9F40', fill: 'rgba(255, 159, 64, 0.2)'},
{line: '#E74C3C', fill: 'rgba(231, 76, 60, 0.2)'},
{line: '#3498DB', fill: 'rgba(52, 152, 219, 0.2)'},
{line: '#2ECC71', fill: 'rgba(46, 204, 113, 0.2)'},
{line: '#F39C12', fill: 'rgba(243, 156, 18, 0.2)'},
{line: '#9B59B6', fill: 'rgba(155, 89, 182, 0.2)'},
{line: '#1ABC9C', fill: 'rgba(26, 188, 156, 0.2)'},
{line: '#E67E22', fill: 'rgba(230, 126, 34, 0.2)'},
{line: '#95A5A6', fill: 'rgba(149, 165, 166, 0.2)'}
];
class SimpleChart {
constructor(canvas, signal, colorIndex) {
this.canvas = canvas;
this.ctx = canvas.getContext('2d');
this.signal = signal;
this.data = [];
this.times = [];
this.labels = [];
this.rawValues = [];
this.colors = COLORS[colorIndex % COLORS.length];
this.currentValue = 0;
this.currentText = '';
this.resizeCanvas();
window.addEventListener('resize', () => this.resizeCanvas());
}
resizeCanvas() {
const rect = this.canvas.getBoundingClientRect();
this.canvas.width = rect.width * window.devicePixelRatio;
this.canvas.height = rect.height * window.devicePixelRatio;
this.ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
this.width = rect.width;
this.height = rect.height;
this.draw();
}
addData(value, time) {
this.data.push(value);
this.times.push(parseFloat(time));
this.labels.push(time);
this.rawValues.push(value);
this.currentValue = value;
if (this.signal.valueTable && this.signal.valueTable[value] !== undefined) {
this.currentText = this.signal.valueTable[value];
} else {
this.currentText = '';
}
if (scaleMode === 'index' && this.data.length > MAX_DATA_POINTS) {
this.data.shift();
this.times.shift();
this.labels.shift();
this.rawValues.shift();
}
this.draw();
}
getValueText(value) {
if (this.signal.valueTable && this.signal.valueTable[value] !== undefined) {
return this.signal.valueTable[value];
}
return value.toFixed(2);
}
draw() {
if (this.data.length === 0) return;
const ctx = this.ctx;
const padding = 40;
const graphWidth = this.width - padding * 2;
const graphHeight = this.height - padding * 2;
ctx.clearRect(0, 0, this.width, this.height);
let displayData = [];
let displayTimes = [];
let displayLabels = [];
if (rangeMode === '10s') {
const currentTime = this.times[this.times.length - 1];
for (let i = 0; i < this.times.length; i++) {
if (currentTime - this.times[i] <= 10) {
displayData.push(this.data[i]);
displayTimes.push(this.times[i]);
displayLabels.push(this.labels[i]);
}
}
} else {
displayData = [...this.data];
displayTimes = [...this.times];
displayLabels = [...this.labels];
}
if (displayData.length === 0) return;
const minValue = Math.min(...displayData);
const maxValue = Math.max(...displayData);
const range = maxValue - minValue || 1;
let minTime, maxTime, timeRange;
if (scaleMode === 'time') {
minTime = displayTimes[0];
maxTime = displayTimes[displayTimes.length - 1];
timeRange = maxTime - minTime || 1;
}
ctx.strokeStyle = '#444';
ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(padding, padding);
ctx.lineTo(padding, this.height - padding);
ctx.lineTo(this.width - padding, this.height - padding);
ctx.stroke();
ctx.fillStyle = '#aaa';
ctx.font = '11px Arial';
ctx.textAlign = 'right';
if (this.signal.valueTable) {
const uniqueValues = [...new Set(displayData)].sort((a, b) => a - b);
if (uniqueValues.length <= 5) {
uniqueValues.forEach((val, idx) => {
const y = this.height - padding - ((val - minValue) / range) * graphHeight;
const text = this.getValueText(val);
ctx.fillText(text, padding - 5, y + 5);
});
} else {
ctx.fillText(this.getValueText(maxValue), padding - 5, padding + 5);
ctx.fillText(this.getValueText(minValue), padding - 5, this.height - padding);
}
} else {
ctx.fillText(maxValue.toFixed(2), padding - 5, padding + 5);
ctx.fillText(minValue.toFixed(2), padding - 5, this.height - padding);
}
ctx.textAlign = 'center';
ctx.fillStyle = '#aaa';
ctx.font = '10px Arial';
if (displayLabels.length > 0) {
ctx.fillText(displayLabels[0] + 's', padding, this.height - padding + 15);
if (displayLabels.length > 1) {
const lastIdx = displayLabels.length - 1;
let xPos;
if (scaleMode === 'time') {
xPos = this.width - padding;
} else {
xPos = padding + (graphWidth / (MAX_DATA_POINTS - 1)) * Math.min(lastIdx, MAX_DATA_POINTS - 1);
}
ctx.fillText(displayLabels[lastIdx] + 's', xPos, this.height - padding + 15);
}
}
ctx.fillText('Time (sec)', this.width / 2, this.height - 5);
ctx.strokeStyle = '#333';
ctx.lineWidth = 1;
for (let i = 1; i < 5; i++) {
const y = padding + (graphHeight / 5) * i;
ctx.beginPath();
ctx.moveTo(padding, y);
ctx.lineTo(this.width - padding, y);
ctx.stroke();
}
if (displayData.length < 1) return;
ctx.fillStyle = this.colors.line;
for (let i = 0; i < displayData.length; i++) {
let x;
if (scaleMode === 'time') {
const timePos = (displayTimes[i] - minTime) / timeRange;
x = padding + graphWidth * timePos;
} else {
x = padding + (graphWidth / (MAX_DATA_POINTS - 1)) * i;
}
const y = this.height - padding - ((displayData[i] - minValue) / range) * graphHeight;
ctx.beginPath();
ctx.arc(x, y, 5, 0, Math.PI * 2);
ctx.fill();
ctx.strokeStyle = '#fff';
ctx.lineWidth = 1;
ctx.stroke();
}
}
}
function initWebSocket() {
const hostname = window.location.hostname;
ws = new WebSocket('ws://' + hostname + ':81');
ws.onopen = function() {
console.log('WebSocket connected');
updateStatus('Connected', false);
};
ws.onclose = function() {
console.log('WebSocket disconnected');
updateStatus('Disconnected', true);
setTimeout(initWebSocket, 3000);
};
ws.onmessage = function(event) {
try {
const data = JSON.parse(event.data);
// ★★★ 핵심 수정: 'update' 타입도 처리
if (graphing) {
if (data.type === 'canBatch') {
processCANData(data.messages);
} else if (data.type === 'update' || data.type === 'status') {
// 서버가 보내는 update 타입의 messages 배열 처리
if (data.messages && data.messages.length > 0) {
processCANDataFromUpdate(data.messages);
}
}
}
} catch(e) {
console.error('Error:', e);
}
};
}
function updateStatus(text, isError) {
const status = document.getElementById('status');
status.textContent = text;
status.className = 'status' + (isError ? ' disconnected' : '');
}
function loadData() {
try {
const signals = localStorage.getItem('selected_signals');
const dbc = localStorage.getItem('dbc_content');
const savedSortMode = localStorage.getItem('sort_mode');
if (!signals || !dbc) {
alert('No signals selected. Please select signals first.');
window.close();
return false;
}
if (savedSortMode) {
sortMode = savedSortMode;
}
selectedSignals = JSON.parse(signals);
dbcData = {messages: {}};
selectedSignals.forEach(sig => {
if (!dbcData.messages[sig.messageId]) {
dbcData.messages[sig.messageId] = {
id: sig.messageId,
signals: []
};
}
dbcData.messages[sig.messageId].signals.push(sig);
});
console.log('Loaded', selectedSignals.length, 'signals');
selectedSignals.forEach(sig => {
if (sig.valueTable) {
console.log('Signal with Value Table:', sig.name, sig.valueTable);
}
});
return true;
} catch(e) {
console.error('Failed to load data:', e);
alert('Failed to load signal data');
window.close();
return false;
}
}
function sortSignalsForDisplay() {
if (sortMode === 'name-asc') {
return [...selectedSignals].sort((a, b) => a.name.localeCompare(b.name));
} else if (sortMode === 'name-desc') {
return [...selectedSignals].sort((a, b) => b.name.localeCompare(a.name));
} else {
return selectedSignals;
}
}
function setSortMode(mode) {
sortMode = mode;
document.querySelectorAll('[id^="btn-sort-"]').forEach(btn => btn.classList.remove('active'));
document.getElementById('btn-sort-' + mode).classList.add('active');
createGraphs();
console.log('Sort mode changed to:', mode);
}
function createGraphs() {
const graphsDiv = document.getElementById('graphs');
graphsDiv.innerHTML = '';
charts = {};
const sortedSignals = sortSignalsForDisplay();
sortedSignals.forEach((signal, index) => {
const container = document.createElement('div');
container.className = 'graph-container';
const canvas = document.createElement('canvas');
canvas.id = 'chart-' + index;
container.innerHTML =
'<div class="graph-header">' +
'<div class="graph-title">' + signal.name + ' (0x' + signal.messageId.toString(16).toUpperCase() + ')' +
(signal.unit ? ' [' + signal.unit + ']' : '') + '</div>' +
'<div class="graph-value" id="value-' + index + '">-</div>' +
'</div>';
container.appendChild(canvas);
graphsDiv.appendChild(container);
charts[index] = new SimpleChart(canvas, signal, index);
});
document.getElementById('graph-count').textContent = sortedSignals.length;
}
function startGraphing() {
if (!graphing) {
graphing = true;
startTime = Date.now();
lastTimestamps = {};
updateStatus('Graphing...', false);
console.log('Started graphing at', new Date().toISOString());
}
}
function stopGraphing() {
graphing = false;
updateStatus('Stopped', false);
console.log('Stopped graphing');
}
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');
Object.values(charts).forEach(chart => chart.draw());
console.log('Scale mode changed to:', mode);
}
function setRangeMode(mode) {
rangeMode = mode;
document.getElementById('btn-range-10s').classList.toggle('active', mode === '10s');
document.getElementById('btn-range-all').classList.toggle('active', mode === 'all');
Object.values(charts).forEach(chart => chart.draw());
console.log('Range mode changed to:', mode);
}
// ★★★ 새로운 함수: update 타입 메시지 처리
// 서버가 보내는 형식: {id: 숫자, dlc: 숫자, data: [배열], count: 숫자}
// ★★★ count가 증가한 경우에만 그래프에 데이터 추가
function processCANDataFromUpdate(messages) {
const elapsedTime = ((Date.now() - startTime) / 1000).toFixed(1);
const sortedSignals = sortSignalsForDisplay();
let processedCount = 0;
messages.forEach(canMsg => {
// id가 숫자로 오는 경우 처리
let msgId = canMsg.id;
if (typeof msgId === 'string') {
msgId = parseInt(msgId.replace('0x', ''), 16);
}
// Extended CAN ID 처리 (bit 31 제거)
if (msgId & 0x80000000) {
msgId = msgId & 0x1FFFFFFF;
}
// ★ count가 증가한 경우에만 처리 (새로운 CAN 메시지가 있을 때만)
const prevCount = lastCanCounts[msgId] || 0;
const currentCount = canMsg.count || 0;
if (currentCount <= prevCount) {
// count가 증가하지 않았으면 스킵
return;
}
// count 업데이트
lastCanCounts[msgId] = currentCount;
totalMsgReceived++;
// data가 배열로 오는 경우 HEX 문자열로 변환
let hexData = '';
if (Array.isArray(canMsg.data)) {
hexData = canMsg.data.map(b => b.toString(16).padStart(2, '0')).join('');
} else if (typeof canMsg.data === 'string') {
hexData = canMsg.data.replace(/\s/g, '');
}
sortedSignals.forEach((signal, index) => {
if (signal.messageId === msgId && charts[index]) {
try {
const value = decodeSignalFromHex(signal, hexData);
charts[index].addData(value, elapsedTime);
const valueDiv = document.getElementById('value-' + index);
if (valueDiv) {
if (signal.valueTable && signal.valueTable[value] !== undefined) {
valueDiv.textContent = signal.valueTable[value];
} else {
valueDiv.textContent = value.toFixed(2) + (signal.unit ? ' ' + signal.unit : '');
}
}
processedCount++;
} catch(e) {
console.error('Error decoding signal ' + signal.name + ':', e);
}
}
});
});
if (processedCount > 0) {
console.log('Added', processedCount, 'new data points from update');
}
updateStatistics();
}
// 기존 canBatch 처리 함수 (문자열 형식 데이터용)
function processCANData(messages) {
const elapsedTime = ((Date.now() - startTime) / 1000).toFixed(1);
const sortedSignals = sortSignalsForDisplay();
console.log('Processing', messages.length, 'messages at time', elapsedTime + 's');
let processedCount = 0;
totalMsgReceived += messages.length;
messages.forEach(canMsg => {
const idStr = (canMsg.id || '').toString().replace(/\s/g, '').toUpperCase();
let msgId = parseInt(idStr.replace('0X', ''), 16);
if (msgId & 0x80000000) {
msgId = msgId & 0x1FFFFFFF;
}
const timestamp = canMsg.timestamp;
sortedSignals.forEach((signal, index) => {
if (signal.messageId === msgId && charts[index]) {
try {
const value = decodeSignal(signal, canMsg.data);
charts[index].addData(value, elapsedTime);
const valueDiv = document.getElementById('value-' + index);
if (valueDiv) {
if (signal.valueTable && signal.valueTable[value] !== undefined) {
valueDiv.textContent = signal.valueTable[value];
} else {
valueDiv.textContent = value.toFixed(2) + (signal.unit ? ' ' + signal.unit : '');
}
}
processedCount++;
} catch(e) {
console.error('Error decoding signal ' + signal.name + ':', e);
}
}
});
});
if (processedCount > 0) {
console.log('Added', processedCount, 'new data points');
}
updateStatistics();
}
function updateStatistics() {
let totalDataPoints = 0;
Object.values(charts).forEach(chart => {
totalDataPoints += chart.data.length;
});
document.getElementById('data-point-count').textContent = totalDataPoints;
document.getElementById('msg-received').textContent = totalMsgReceived;
const recordingTime = ((Date.now() - startTime) / 1000).toFixed(1);
document.getElementById('recording-time').textContent = recordingTime + 's';
}
// ★ HEX 문자열에서 바이트 배열로 변환 후 디코딩
function decodeSignalFromHex(signal, hexData) {
const bytes = [];
const cleanHex = hexData.toUpperCase();
for (let i = 0; i < cleanHex.length && i < 16; i += 2) {
bytes.push(parseInt(cleanHex.substring(i, i + 2), 16));
}
while (bytes.length < 8) bytes.push(0);
return decodeSignalFromBytes(signal, bytes);
}
function decodeSignal(signal, hexData) {
const bytes = [];
if (typeof hexData === 'string') {
const cleanHex = hexData.replace(/\s/g, '').toUpperCase();
for (let i = 0; i < cleanHex.length && i < 16; i += 2) {
bytes.push(parseInt(cleanHex.substring(i, i + 2), 16));
}
} else if (Array.isArray(hexData)) {
bytes.push(...hexData);
}
while (bytes.length < 8) bytes.push(0);
return decodeSignalFromBytes(signal, bytes);
}
function decodeSignalFromBytes(signal, bytes) {
let rawValue = 0;
if (signal.byteOrder === 'intel') {
for (let i = 0; i < signal.bitLength; i++) {
const bitPos = signal.startBit + i;
const byteIdx = Math.floor(bitPos / 8);
const bitIdx = bitPos % 8;
if (byteIdx < bytes.length) {
const bit = (bytes[byteIdx] >> bitIdx) & 1;
rawValue |= (bit << i);
}
}
} else {
for (let i = 0; i < signal.bitLength; i++) {
const bitPos = signal.startBit - i;
const byteIdx = Math.floor(bitPos / 8);
const bitIdx = 7 - (bitPos % 8);
if (byteIdx < bytes.length && byteIdx >= 0) {
const bit = (bytes[byteIdx] >> bitIdx) & 1;
rawValue |= (bit << (signal.bitLength - 1 - i));
}
}
}
if (signal.signed && (rawValue & (1 << (signal.bitLength - 1)))) {
rawValue -= (1 << signal.bitLength);
}
return rawValue * signal.factor + signal.offset;
}
function downloadCSV() {
if (Object.keys(charts).length === 0) {
alert('No data to download!');
return;
}
let csvContent = 'Time(s)';
const sortedSignals = sortSignalsForDisplay();
sortedSignals.forEach(signal => {
const unit = signal.unit ? ' [' + signal.unit + ']' : '';
csvContent += ',' + signal.name + unit;
if (signal.valueTable) {
csvContent += ',' + signal.name + '_Text';
}
});
csvContent += '\n';
let maxLength = 0;
Object.values(charts).forEach(chart => {
if (chart.labels.length > maxLength) {
maxLength = chart.labels.length;
}
});
for (let i = 0; i < maxLength; i++) {
let row = '';
let timeValue = '';
sortedSignals.forEach((signal, index) => {
const chart = charts[index];
if (chart && chart.labels[i] !== undefined) {
if (timeValue === '') {
timeValue = chart.labels[i];
}
const value = chart.data[i];
row += ',' + value.toFixed(6);
if (signal.valueTable) {
const text = signal.valueTable[value] !== undefined ?
signal.valueTable[value] : '';
row += ',"' + text + '"';
}
} else {
row += ',';
if (signal.valueTable) {
row += ',';
}
}
});
if (timeValue !== '') {
csvContent += timeValue + row + '\n';
}
}
const blob = new Blob([csvContent], { type: 'text/csv;charset=utf-8;' });
const link = document.createElement('a');
const url = URL.createObjectURL(blob);
const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, -5);
link.setAttribute('href', url);
link.setAttribute('download', 'can_signals_' + timestamp + '.csv');
link.style.visibility = 'hidden';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
console.log('CSV downloaded with ' + maxLength + ' data points');
}
function clearData() {
if (!confirm('Clear all recorded data? This cannot be undone.')) {
return;
}
Object.values(charts).forEach(chart => {
chart.data = [];
chart.times = [];
chart.labels = [];
chart.rawValues = [];
chart.currentValue = 0;
chart.currentText = '';
chart.draw();
});
lastTimestamps = {};
lastCanCounts = {}; // ★ count 기록도 초기화
startTime = Date.now();
totalMsgReceived = 0;
updateStatistics();
console.log('All data cleared');
}
if (loadData()) {
createGraphs();
initWebSocket();
startGraphing();
}
</script>
</body>
</html>
)rawliteral";
#endif