Merge pull request #20 from plotly/multiple-streams

etpinard · etpinard · commit 13186582d56d · 2015-04-16T10:29:24.000-04:00
Add multiple trace stream example
diff --git a/examples/streaming-multiple-traces.js b/examples/streaming-multiple-traces.js
@@ -0,0 +1,46 @@
+var config = require('./config.json'),
+    username = config.user,
+    apikey = config.apikey,
+    tokens = config.tokens,
+    Plotly = require('../.')(username, apikey),
+    Signal = require('random-signal');
+
+function initTrace(i) {
+    return {
+        x: [],  // init. data arrays
+        y: [],
+        type: 'scatter',
+        mode: 'lines+markers',
+        stream: {
+            "token": tokens[i],
+            "maxpoints": 100
+        }
+    };
+}
+
+var data = [0, 1].map(initTrace);
+
+var layout = {
+    filename: "stream-multiple-traces",
+    fileopt: "overwrite",
+    layout: {
+      title: "streaming mock sensor data"
+    },
+    world_readable: true
+};
+
+
+Plotly.plot(data, layout, function (err, resp) {
+    if (err) return console.log("ERROR", err, data);
+    console.log(resp);
+
+    [0, 1].forEach(function(i) {
+        var plotlystream = Plotly.stream(tokens[i], function() {}),
+            signalstream = Signal({tdelta: 100});
+
+        plotlystream.on("error", function (err) { signalstream.destroy(); });
+
+        signalstream.pipe(plotlystream);
+    });
+
+});
