| 1 | <!DOCTYPE html> |
| 2 | <html> |
| 3 | <head> |
| 4 | <link rel="stylesheet" href="../dist/dygraph.css"> |
| 5 | <title>Highlighted Region</title> |
| 6 | <script type="text/javascript" src="../dist/dygraph.js"></script> |
| 7 | |
| 8 | <script type="text/javascript" src="data.js"></script> |
| 9 | </head> |
| 10 | <body> |
| 11 | <p>Should draw a time series with an unusual region highlighted:</p> |
| 12 | <div id="div_g" style="width:600px; height:300px;"></div> |
| 13 | |
| 14 | <p>When you zoom/pan, the region should remain highlighted.</p> |
| 15 | |
| 16 | <script type="text/javascript"> |
| 17 | // A basic sinusoidal data series. |
| 18 | var data = []; |
| 19 | for (var i = 0; i < 1000; i++) { |
| 20 | var base = 10 * Math.sin(i / 90.0); |
| 21 | data.push([i, base, base + Math.sin(i / 2.0)]); |
| 22 | } |
| 23 | |
| 24 | // Shift one portion out of line. |
| 25 | var highlight_start = 450; |
| 26 | var highlight_end = 500; |
| 27 | for (var i = highlight_start; i <= highlight_end; i++) { |
| 28 | data[i][2] += 5.0; |
| 29 | } |
| 30 | |
| 31 | |
| 32 | var g = new Dygraph( |
| 33 | document.getElementById("div_g"), |
| 34 | data, |
| 35 | { |
| 36 | labels: ['X', 'Est.', 'Actual'], |
| 37 | animatedZooms: true, |
| 38 | underlayCallback: function(canvas, area, g) { |
| 39 | var bottom_left = g.toDomCoords(highlight_start, -20); |
| 40 | var top_right = g.toDomCoords(highlight_end, +20); |
| 41 | |
| 42 | var left = bottom_left[0]; |
| 43 | var right = top_right[0]; |
| 44 | |
| 45 | canvas.fillStyle = "rgba(255, 255, 102, 1.0)"; |
| 46 | canvas.fillRect(left, area.y, right - left, area.h); |
| 47 | } |
| 48 | |
| 49 | } |
| 50 | ); |
| 51 | </script> |
| 52 | </body> |
| 53 | </html> |