| 1 | <!DOCTYPE html> |
| 2 | <html> |
| 3 | <head> |
| 4 | <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9"> |
| 5 | <title>demo</title> |
| 6 | <!--[if IE]> |
| 7 | <script type="text/javascript" src="../excanvas.js"></script> |
| 8 | <![endif]--> |
| 9 | <!-- |
| 10 | <script type="text/javascript" src="dygraph-combined.js"></script> |
| 11 | --> |
| 12 | <!-- |
| 13 | For production (minified) code, use: |
| 14 | <script type="text/javascript" src="dygraph-combined.js"></script> |
| 15 | --> |
| 16 | <script type="text/javascript" src="../dygraph-dev.js"></script> |
| 17 | |
| 18 | <style type="text/css"> |
| 19 | .annotation { |
| 20 | } |
| 21 | </style> |
| 22 | </head> |
| 23 | <body> |
| 24 | <h3>Annotations Demo</h3> |
| 25 | <p>Click any point to add an annotation to it or click "Add Annotation".</p> |
| 26 | <input type="button" value="Add Annotation" onclick="add()" /> |
| 27 | <input type="button" value="Shove to bottom" onclick="bottom(this)" /> |
| 28 | <div id="events"> </div> |
| 29 | <div style="position:absolute; left:200px; top: 200px;" id="g_div"></div> |
| 30 | <div style="position:absolute; left:700px; top: 200px;" id="list"></div> |
| 31 | |
| 32 | <script type="text/javascript"> |
| 33 | var eventDiv = document.getElementById("events"); |
| 34 | function nameAnnotation(ann) { |
| 35 | return "(" + ann.series + ", " + ann.x + ")"; |
| 36 | } |
| 37 | |
| 38 | annotations = []; |
| 39 | var graph_initialized = false; |
| 40 | |
| 41 | g = new Dygraph( |
| 42 | document.getElementById("g_div"), |
| 43 | function() { |
| 44 | var zp = function(x) { if (x < 10) return "0"+x; else return x; }; |
| 45 | var r = "date,parabola,line,another line,sine wave\n"; |
| 46 | for (var i=1; i<=31; i++) { |
| 47 | r += "200610" + zp(i); |
| 48 | r += "," + 10*(i*(31-i)); |
| 49 | r += "," + 10*(8*i); |
| 50 | r += "," + 10*(250 - 8*i); |
| 51 | r += "," + 10*(125 + 125 * Math.sin(0.3*i)); |
| 52 | r += "\n"; |
| 53 | } |
| 54 | return r; |
| 55 | }, |
| 56 | { |
| 57 | rollPeriod: 1, |
| 58 | showRoller: true, |
| 59 | width: 480, |
| 60 | height: 320, |
| 61 | drawCallback: function(g, is_initial) { |
| 62 | if (is_initial) { |
| 63 | graph_initialized = true; |
| 64 | if (annotations.length > 0) { |
| 65 | g.setAnnotations(annotations); |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | var ann = g.annotations(); |
| 70 | var html = ""; |
| 71 | for (var i = 0; i < ann.length; i++) { |
| 72 | var name = nameAnnotation(ann[i]); |
| 73 | html += "<span id='" + name + "'>" |
| 74 | html += name + ": " + (ann[i].shortText || '(icon)') |
| 75 | html += " -> " + ann[i].text + "</span><br/>"; |
| 76 | } |
| 77 | document.getElementById("list").innerHTML = html; |
| 78 | } |
| 79 | } |
| 80 | ); |
| 81 | |
| 82 | var last_ann = 0; |
| 83 | for (var x = 10; x < 15; x += 2) { |
| 84 | annotations.push( { |
| 85 | series: 'sine wave', |
| 86 | x: "200610" + x, |
| 87 | shortText: x, |
| 88 | text: 'Stock Market Crash ' + x |
| 89 | } ); |
| 90 | last_ann = x; |
| 91 | } |
| 92 | annotations.push( { |
| 93 | series: 'another line', |
| 94 | x: "20061013", |
| 95 | icon: 'dollar.png', |
| 96 | width: 18, |
| 97 | height: 23, |
| 98 | tickHeight: 4, |
| 99 | text: 'Another one', |
| 100 | cssClass: 'annotation', |
| 101 | clickHandler: function() { |
| 102 | document.getElementById("events").innerHTML += "special handler<br/>"; |
| 103 | } |
| 104 | } ); |
| 105 | annotations.push( { |
| 106 | series: 'parabola', |
| 107 | x: '20061012', |
| 108 | shortText: 'P', |
| 109 | text: 'Parabola Annotation at same x-coord' |
| 110 | } ); |
| 111 | |
| 112 | if (graph_initialized) { |
| 113 | g.setAnnotations(annotations); |
| 114 | } |
| 115 | |
| 116 | function add() { |
| 117 | var x = last_ann + 2; |
| 118 | var annnotations = g.annotations(); |
| 119 | annotations.push( { |
| 120 | series: 'line', |
| 121 | x: "200610" + x, |
| 122 | shortText: x, |
| 123 | text: 'Line ' + x, |
| 124 | tickHeight: 10 |
| 125 | } ); |
| 126 | last_ann = x; |
| 127 | g.setAnnotations(annotations); |
| 128 | } |
| 129 | |
| 130 | function bottom(el) { |
| 131 | var to_bottom = true; |
| 132 | if (el.value != 'Shove to bottom') to_bottom = false; |
| 133 | |
| 134 | var anns = g.annotations(); |
| 135 | for (var i = 0; i < anns.length; i++) { |
| 136 | anns[i].attachAtBottom = to_bottom; |
| 137 | } |
| 138 | g.setAnnotations(anns); |
| 139 | |
| 140 | if (to_bottom) { |
| 141 | el.value = 'Lift back up'; |
| 142 | } else { |
| 143 | el.value = 'Shove to bottom'; |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | var saveBg = ''; |
| 148 | var num = 0; |
| 149 | g.updateOptions( { |
| 150 | annotationClickHandler: function(ann, point, dg, event) { |
| 151 | eventDiv.innerHTML += "click: " + nameAnnotation(ann) + "<br/>"; |
| 152 | }, |
| 153 | annotationDblClickHandler: function(ann, point, dg, event) { |
| 154 | eventDiv.innerHTML += "dblclick: " + nameAnnotation(ann) + "<br/>"; |
| 155 | }, |
| 156 | annotationMouseOverHandler: function(ann, point, dg, event) { |
| 157 | document.getElementById(nameAnnotation(ann)).style.fontWeight = 'bold'; |
| 158 | saveBg = ann.div.style.backgroundColor; |
| 159 | ann.div.style.backgroundColor = '#ddd'; |
| 160 | }, |
| 161 | annotationMouseOutHandler: function(ann, point, dg, event) { |
| 162 | document.getElementById(nameAnnotation(ann)).style.fontWeight = 'normal'; |
| 163 | ann.div.style.backgroundColor = saveBg; |
| 164 | }, |
| 165 | |
| 166 | pointClickCallback: function(event, p) { |
| 167 | // Check if the point is already annotated. |
| 168 | if (p.annotation) return; |
| 169 | |
| 170 | // If not, add one. |
| 171 | var ann = { |
| 172 | series: p.name, |
| 173 | xval: p.xval, |
| 174 | shortText: num, |
| 175 | text: "Annotation #" + num |
| 176 | }; |
| 177 | var anns = g.annotations(); |
| 178 | anns.push(ann); |
| 179 | g.setAnnotations(anns); |
| 180 | |
| 181 | num++; |
| 182 | } |
| 183 | }); |
| 184 | </script> |
| 185 | </body> |
| 186 | </html> |