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