byun
3af955852a
esp32와 mcp2515로 can data 실시간 로깅(sd spi) 하는 프로그램 코드인데 로깅은 잘돼 하지만 그래프 웹페이지에서 변수를 선택한 후 start누르면 그래프가 실시간 그려지지 않아 실시간 그래프 그려지도록 데이터 수정해줘 ESP32가 인터넷에 연결되지 않은 상태라서 다른 방법 없을까? graph 웹페이지에서 dbc 넣은 다음 그래프 잘 출력되는데 그래프의 x축 에 대한 값 sec을 표현해주었으면 하고 다른페이지 이동 클릭한다음 graph 페이지 오면 넣었던 dbc가 없어져 다시 넣어야 하는데 넣었던 dbc는 다른 페이지 이동해도 유지할 수 있도록 수정해줘
722 lines
28 KiB
C++
722 lines
28 KiB
C++
#ifndef GRAPH_H
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#define GRAPH_H
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const char graph_html[] PROGMEM = R"rawliteral(
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<title>CAN Signal Graph</title>
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<style>
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* { margin: 0; padding: 0; box-sizing: border-box; }
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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background: linear-gradient(135deg, #43cea2 0%, #185a9d 100%);
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min-height: 100vh;
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padding: 10px;
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}
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.container {
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max-width: 1600px;
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margin: 0 auto;
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background: white;
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border-radius: 15px;
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box-shadow: 0 20px 60px rgba(0,0,0,0.3);
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overflow: hidden;
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}
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.header {
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background: linear-gradient(135deg, #43cea2 0%, #185a9d 100%);
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color: white;
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padding: 20px;
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text-align: center;
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}
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.header h1 { font-size: 1.8em; margin-bottom: 5px; }
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.nav {
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background: #2c3e50;
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padding: 10px;
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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justify-content: center;
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}
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.nav a {
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color: white;
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text-decoration: none;
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padding: 10px 15px;
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border-radius: 5px;
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transition: all 0.3s;
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font-size: 0.9em;
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}
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.nav a:hover { background: #34495e; }
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.nav a.active { background: #3498db; }
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.content { padding: 15px; }
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.dbc-upload {
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background: #f8f9fa;
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padding: 20px;
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border-radius: 10px;
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margin-bottom: 15px;
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}
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.upload-area {
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border: 3px dashed #43cea2;
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border-radius: 10px;
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padding: 30px 20px;
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text-align: center;
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cursor: pointer;
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transition: all 0.3s;
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}
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.upload-area:hover { background: #f0f9ff; border-color: #185a9d; }
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.upload-area input { display: none; }
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.signal-selector {
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background: #f8f9fa;
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padding: 15px;
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border-radius: 10px;
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margin-bottom: 15px;
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}
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.signal-grid {
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display: grid;
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grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
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gap: 10px;
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margin-top: 15px;
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}
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.signal-item {
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background: white;
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padding: 12px;
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border-radius: 8px;
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border: 2px solid #ddd;
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cursor: pointer;
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transition: all 0.3s;
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}
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.signal-item:hover { border-color: #43cea2; transform: translateY(-2px); }
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.signal-item.selected { border-color: #185a9d; background: #e3f2fd; }
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.signal-name { font-weight: 600; color: #333; margin-bottom: 5px; font-size: 0.9em; }
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.signal-info { font-size: 0.8em; color: #666; }
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.graph-container {
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background: white;
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padding: 15px;
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border-radius: 10px;
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margin-bottom: 15px;
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border: 2px solid #e0e0e0;
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}
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.graph-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 10px;
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padding-bottom: 8px;
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border-bottom: 2px solid #43cea2;
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}
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.graph-title {
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font-size: 1em;
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font-weight: 600;
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color: #333;
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}
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.graph-value {
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font-size: 1.2em;
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font-weight: 700;
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color: #185a9d;
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font-family: 'Courier New', monospace;
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}
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canvas {
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width: 100%;
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height: 250px;
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border: 1px solid #ddd;
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border-radius: 5px;
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background: #fafafa;
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}
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.controls {
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display: flex;
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gap: 8px;
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margin-bottom: 15px;
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flex-wrap: wrap;
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}
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.btn {
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padding: 10px 20px;
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border: none;
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border-radius: 5px;
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font-size: 0.9em;
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font-weight: 600;
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cursor: pointer;
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transition: all 0.3s;
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}
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.btn-primary { background: linear-gradient(135deg, #43cea2 0%, #185a9d 100%); color: white; }
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.btn-success { background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%); color: white; }
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.btn-danger { background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%); color: white; }
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.btn:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.3); }
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h2 {
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color: #333;
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margin: 20px 0 15px 0;
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padding-bottom: 8px;
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border-bottom: 3px solid #43cea2;
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font-size: 1.3em;
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}
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.status { padding: 12px; background: #fff3cd; border-radius: 5px; margin-bottom: 15px; font-size: 0.9em; }
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.status.success { background: #d4edda; color: #155724; }
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.status.error { background: #f8d7da; color: #721c24; }
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@media (max-width: 768px) {
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body { padding: 5px; }
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.header h1 { font-size: 1.5em; }
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.content { padding: 10px; }
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.signal-grid { grid-template-columns: 1fr; gap: 8px; }
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canvas { height: 200px; }
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h2 { font-size: 1.1em; }
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="header">
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<h1>CAN Signal Graph</h1>
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<p>Real-time Signal Visualization (Offline Mode)</p>
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</div>
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<div class="nav">
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<a href="/">Monitor</a>
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<a href="/transmit">Transmit</a>
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<a href="/graph" class="active">Graph</a>
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</div>
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<div class="content">
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<div id="status" class="status" style="display:none;"></div>
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<h2>Upload DBC File</h2>
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<div class="dbc-upload">
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<div class="upload-area" onclick="document.getElementById('dbc-file').click()">
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<input type="file" id="dbc-file" accept=".dbc" onchange="loadDBCFile(event)">
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<p style="font-size: 1.1em; margin-bottom: 8px;">Click to upload DBC</p>
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<p style="color: #666; font-size: 0.85em;" id="dbc-status">No file loaded</p>
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</div>
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</div>
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<div id="signal-section" style="display:none;">
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<h2>Select Signals (Max 6)</h2>
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<div class="controls">
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<button class="btn btn-success" onclick="startGraphing()">Start</button>
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<button class="btn btn-danger" onclick="stopGraphing()">Stop</button>
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<button class="btn btn-primary" onclick="clearSelection()">Clear</button>
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</div>
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<div class="signal-selector">
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<div id="signal-list" class="signal-grid"></div>
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</div>
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<h2>Real-time Graphs</h2>
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<div id="graphs"></div>
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</div>
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</div>
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</div>
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<script>
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let ws;
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let dbcData = {};
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let selectedSignals = [];
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let charts = {};
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let graphing = false;
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let startTime = 0;
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const MAX_SIGNALS = 6;
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const MAX_DATA_POINTS = 60;
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const COLORS = [
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{line: '#FF6384', fill: 'rgba(255, 99, 132, 0.1)'},
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{line: '#36A2EB', fill: 'rgba(54, 162, 235, 0.1)'},
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{line: '#FFCE56', fill: 'rgba(255, 206, 86, 0.1)'},
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{line: '#4BC0C0', fill: 'rgba(75, 192, 192, 0.1)'},
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{line: '#9966FF', fill: 'rgba(153, 102, 255, 0.1)'},
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{line: '#FF9F40', fill: 'rgba(255, 159, 64, 0.1)'}
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];
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// 커스텀 차트 클래스
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class SimpleChart {
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constructor(canvas, signal, colorIndex) {
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this.canvas = canvas;
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this.ctx = canvas.getContext('2d');
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this.signal = signal;
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this.data = [];
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this.labels = [];
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this.colors = COLORS[colorIndex % COLORS.length];
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this.currentValue = 0;
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// Canvas 크기 설정
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this.resizeCanvas();
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window.addEventListener('resize', () => this.resizeCanvas());
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}
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resizeCanvas() {
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const rect = this.canvas.getBoundingClientRect();
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this.canvas.width = rect.width * window.devicePixelRatio;
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this.canvas.height = rect.height * window.devicePixelRatio;
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this.ctx.scale(window.devicePixelRatio, window.devicePixelRatio);
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this.width = rect.width;
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this.height = rect.height;
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this.draw();
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}
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addData(value, label) {
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this.data.push(value);
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this.labels.push(label);
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this.currentValue = value;
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if (this.data.length > MAX_DATA_POINTS) {
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this.data.shift();
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this.labels.shift();
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}
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this.draw();
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}
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draw() {
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if (this.data.length === 0) return;
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const ctx = this.ctx;
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const padding = 40;
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const graphWidth = this.width - padding * 2;
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const graphHeight = this.height - padding * 2;
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// 배경 클리어
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ctx.clearRect(0, 0, this.width, this.height);
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// 데이터 범위 계산
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const minValue = Math.min(...this.data);
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const maxValue = Math.max(...this.data);
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const range = maxValue - minValue || 1;
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// 축 그리기
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ctx.strokeStyle = '#ddd';
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ctx.lineWidth = 1;
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ctx.beginPath();
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ctx.moveTo(padding, padding);
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ctx.lineTo(padding, this.height - padding);
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ctx.lineTo(this.width - padding, this.height - padding);
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ctx.stroke();
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// Y축 라벨
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ctx.fillStyle = '#666';
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ctx.font = '11px Arial';
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ctx.textAlign = 'right';
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ctx.fillText(maxValue.toFixed(2), padding - 5, padding + 5);
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ctx.fillText(minValue.toFixed(2), padding - 5, this.height - padding);
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// X축 라벨 (시간 - 초 단위)
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ctx.textAlign = 'center';
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ctx.fillStyle = '#666';
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ctx.font = '10px Arial';
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if (this.labels.length > 0) {
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// 첫 번째와 마지막 시간 표시
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ctx.fillText(this.labels[0] + 's', padding, this.height - padding + 15);
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if (this.labels.length > 1) {
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const lastIdx = this.labels.length - 1;
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ctx.fillText(this.labels[lastIdx] + 's',
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padding + (graphWidth / (MAX_DATA_POINTS - 1)) * lastIdx,
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this.height - padding + 15);
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}
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}
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// X축 타이틀
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ctx.fillText('Time (sec)', this.width / 2, this.height - 5);
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// 그리드 라인
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ctx.strokeStyle = '#f0f0f0';
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ctx.lineWidth = 1;
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for (let i = 1; i < 5; i++) {
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const y = padding + (graphHeight / 5) * i;
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ctx.beginPath();
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ctx.moveTo(padding, y);
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ctx.lineTo(this.width - padding, y);
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ctx.stroke();
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}
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if (this.data.length < 2) return;
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// 영역 채우기
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ctx.fillStyle = this.colors.fill;
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ctx.beginPath();
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ctx.moveTo(padding, this.height - padding);
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for (let i = 0; i < this.data.length; i++) {
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const x = padding + (graphWidth / (MAX_DATA_POINTS - 1)) * i;
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const y = this.height - padding - ((this.data[i] - minValue) / range) * graphHeight;
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if (i === 0) {
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ctx.lineTo(x, y);
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} else {
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ctx.lineTo(x, y);
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}
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}
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ctx.lineTo(padding + (graphWidth / (MAX_DATA_POINTS - 1)) * (this.data.length - 1), this.height - padding);
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ctx.closePath();
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ctx.fill();
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// 선 그리기
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ctx.strokeStyle = this.colors.line;
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ctx.lineWidth = 2;
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ctx.beginPath();
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for (let i = 0; i < this.data.length; i++) {
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const x = padding + (graphWidth / (MAX_DATA_POINTS - 1)) * i;
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const y = this.height - padding - ((this.data[i] - minValue) / range) * graphHeight;
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if (i === 0) {
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ctx.moveTo(x, y);
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} else {
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ctx.lineTo(x, y);
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}
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}
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ctx.stroke();
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// 데이터 포인트
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ctx.fillStyle = this.colors.line;
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for (let i = 0; i < this.data.length; i++) {
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const x = padding + (graphWidth / (MAX_DATA_POINTS - 1)) * i;
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const y = this.height - padding - ((this.data[i] - minValue) / range) * graphHeight;
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ctx.beginPath();
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ctx.arc(x, y, 2, 0, Math.PI * 2);
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ctx.fill();
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}
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}
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}
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function initWebSocket() {
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ws = new WebSocket('ws://' + window.location.hostname + ':81');
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ws.onopen = function() {
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console.log('WebSocket connected');
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showStatus('Connected', 'success');
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};
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ws.onclose = function() {
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console.log('WebSocket disconnected');
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showStatus('Disconnected - Reconnecting...', 'error');
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setTimeout(initWebSocket, 3000);
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};
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ws.onmessage = function(event) {
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try {
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const data = JSON.parse(event.data);
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if (data.type === 'canBatch' && graphing) {
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processCANData(data.messages);
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}
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} catch(e) {
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console.error('Error parsing WebSocket data:', e);
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}
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};
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}
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function loadDBCFile(event) {
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const file = event.target.files[0];
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if (!file) return;
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const reader = new FileReader();
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reader.onload = function(e) {
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const content = e.target.result;
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parseDBCContent(content);
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document.getElementById('dbc-status').textContent = file.name;
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// DBC 파일 저장
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saveDBCToLocalStorage(content, file.name);
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};
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reader.readAsText(file);
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}
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// DBC 파일을 localStorage에 저장
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function saveDBCToLocalStorage(content, filename) {
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try {
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localStorage.setItem('dbc_content', content);
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localStorage.setItem('dbc_filename', filename);
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console.log('DBC saved to localStorage:', filename);
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} catch(e) {
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console.error('Failed to save DBC to localStorage:', e);
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}
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}
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// localStorage에서 DBC 파일 복원
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function loadDBCFromLocalStorage() {
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try {
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const content = localStorage.getItem('dbc_content');
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const filename = localStorage.getItem('dbc_filename');
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if (content && filename) {
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parseDBCContent(content);
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document.getElementById('dbc-status').textContent = filename + ' (restored)';
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showStatus('DBC file restored: ' + filename, 'success');
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console.log('DBC restored from localStorage:', filename);
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return true;
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}
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} catch(e) {
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console.error('Failed to load DBC from localStorage:', e);
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}
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return false;
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}
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function parseDBCContent(content) {
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dbcData = {messages: {}};
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const lines = content.split('\n');
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let currentMessage = null;
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for (let line of lines) {
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line = line.trim();
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if (line.startsWith('BO_ ')) {
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const match = line.match(/BO_\s+(\d+)\s+(\w+)\s*:/);
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if (match) {
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const id = parseInt(match[1]);
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const name = match[2];
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currentMessage = {id: id, name: name, signals: []};
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dbcData.messages[id] = currentMessage;
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}
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}
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else if (line.startsWith('SG_ ') && currentMessage) {
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const match = line.match(/SG_\s+(\w+)\s*:\s*(\d+)\|(\d+)@([01])([+-])\s*\(([^,]+),([^)]+)\)\s*\[([^\]]+)\]\s*"([^"]*)"/);
|
|
if (match) {
|
|
const signal = {
|
|
name: match[1],
|
|
startBit: parseInt(match[2]),
|
|
bitLength: parseInt(match[3]),
|
|
byteOrder: match[4] === '0' ? 'motorola' : 'intel',
|
|
signed: match[5] === '-',
|
|
factor: parseFloat(match[6]),
|
|
offset: parseFloat(match[7]),
|
|
unit: match[9],
|
|
messageId: currentMessage.id,
|
|
messageName: currentMessage.name
|
|
};
|
|
currentMessage.signals.push(signal);
|
|
}
|
|
}
|
|
}
|
|
|
|
displaySignals();
|
|
showStatus('DBC loaded: ' + Object.keys(dbcData.messages).length + ' messages', 'success');
|
|
}
|
|
|
|
function displaySignals() {
|
|
const signalList = document.getElementById('signal-list');
|
|
signalList.innerHTML = '';
|
|
|
|
for (let msgId in dbcData.messages) {
|
|
const msg = dbcData.messages[msgId];
|
|
msg.signals.forEach(signal => {
|
|
const item = document.createElement('div');
|
|
item.className = 'signal-item';
|
|
item.onclick = () => toggleSignal(signal, item);
|
|
item.innerHTML =
|
|
'<div class="signal-name">' + signal.name + '</div>' +
|
|
'<div class="signal-info">' +
|
|
'ID: 0x' + signal.messageId.toString(16).toUpperCase() + ' | ' +
|
|
signal.bitLength + 'bit' +
|
|
(signal.unit ? ' | ' + signal.unit : '') +
|
|
'</div>';
|
|
signalList.appendChild(item);
|
|
});
|
|
}
|
|
|
|
document.getElementById('signal-section').style.display = 'block';
|
|
}
|
|
|
|
function toggleSignal(signal, element) {
|
|
const index = selectedSignals.findIndex(s =>
|
|
s.messageId === signal.messageId && s.name === signal.name);
|
|
|
|
if (index >= 0) {
|
|
selectedSignals.splice(index, 1);
|
|
element.classList.remove('selected');
|
|
} else {
|
|
if (selectedSignals.length >= MAX_SIGNALS) {
|
|
showStatus('Max ' + MAX_SIGNALS + ' signals!', 'error');
|
|
return;
|
|
}
|
|
selectedSignals.push(signal);
|
|
element.classList.add('selected');
|
|
}
|
|
}
|
|
|
|
function clearSelection() {
|
|
selectedSignals = [];
|
|
document.querySelectorAll('.signal-item').forEach(item => {
|
|
item.classList.remove('selected');
|
|
});
|
|
}
|
|
|
|
function startGraphing() {
|
|
if (selectedSignals.length === 0) {
|
|
showStatus('Select at least one signal!', 'error');
|
|
return;
|
|
}
|
|
|
|
graphing = true;
|
|
startTime = Date.now(); // 시작 시간 기록
|
|
createGraphs();
|
|
showStatus('Graphing ' + selectedSignals.length + ' signals', 'success');
|
|
}
|
|
|
|
function stopGraphing() {
|
|
graphing = false;
|
|
showStatus('Stopped', 'success');
|
|
}
|
|
|
|
function createGraphs() {
|
|
const graphsDiv = document.getElementById('graphs');
|
|
graphsDiv.innerHTML = '';
|
|
charts = {};
|
|
|
|
selectedSignals.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);
|
|
});
|
|
}
|
|
|
|
function processCANData(messages) {
|
|
// 경과 시간 계산 (초 단위, 소수점 1자리)
|
|
const elapsedTime = ((Date.now() - startTime) / 1000).toFixed(1);
|
|
|
|
messages.forEach(canMsg => {
|
|
const idStr = canMsg.id.replace(/\s/g, '').toUpperCase();
|
|
const msgId = parseInt(idStr, 16);
|
|
|
|
selectedSignals.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) {
|
|
valueDiv.textContent = value.toFixed(2) + (signal.unit ? ' ' + signal.unit : '');
|
|
}
|
|
} catch(e) {
|
|
console.error('Error decoding signal', signal.name, ':', e);
|
|
}
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
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));
|
|
}
|
|
}
|
|
|
|
while (bytes.length < 8) {
|
|
bytes.push(0);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
const physicalValue = rawValue * signal.factor + signal.offset;
|
|
|
|
return physicalValue;
|
|
}
|
|
|
|
function showStatus(message, type) {
|
|
const status = document.getElementById('status');
|
|
status.textContent = message;
|
|
status.className = 'status ' + type;
|
|
status.style.display = 'block';
|
|
setTimeout(() => { status.style.display = 'none'; }, 5000);
|
|
}
|
|
|
|
const uploadArea = document.querySelector('.upload-area');
|
|
['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
|
|
uploadArea.addEventListener(eventName, e => {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
});
|
|
});
|
|
|
|
['dragenter', 'dragover'].forEach(eventName => {
|
|
uploadArea.addEventListener(eventName, () => {
|
|
uploadArea.style.borderColor = '#185a9d';
|
|
uploadArea.style.background = '#f0f9ff';
|
|
});
|
|
});
|
|
|
|
['dragleave', 'drop'].forEach(eventName => {
|
|
uploadArea.addEventListener(eventName, () => {
|
|
uploadArea.style.borderColor = '#43cea2';
|
|
uploadArea.style.background = '';
|
|
});
|
|
});
|
|
|
|
uploadArea.addEventListener('drop', function(e) {
|
|
const file = e.dataTransfer.files[0];
|
|
if (file && file.name.endsWith('.dbc')) {
|
|
const reader = new FileReader();
|
|
reader.onload = function(ev) {
|
|
parseDBCContent(ev.target.result);
|
|
document.getElementById('dbc-status').textContent = file.name;
|
|
|
|
// DBC 파일 저장
|
|
saveDBCToLocalStorage(ev.target.result, file.name);
|
|
};
|
|
reader.readAsText(file);
|
|
}
|
|
});
|
|
|
|
// 페이지 로드 시 localStorage에서 DBC 복원
|
|
window.addEventListener('load', function() {
|
|
loadDBCFromLocalStorage();
|
|
});
|
|
|
|
initWebSocket();
|
|
</script>
|
|
</body>
|
|
</html>
|
|
)rawliteral";
|
|
|
|
#endif |