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885c13e4 RK |
1 | |
2 | <html> | |
3 | <head> | |
4 | <title>interaction model</title> | |
5 | <!--[if IE]> | |
6 | <script type="text/javascript" src="../excanvas.js"></script> | |
7 | <![endif]--> | |
8 | <script type="text/javascript" src="../strftime/strftime-min.js"></script> | |
9 | <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script> | |
10 | <script type="text/javascript" src="../dygraph-canvas.js"></script> | |
11 | <script type="text/javascript" src="../dygraph.js"></script> | |
12 | <script type="text/javascript" src="data.js"></script> | |
13 | </head> | |
14 | <body> | |
15 | <table border='1'> | |
16 | <tr><td> | |
17 | <b>Default interaction model</b> | |
18 | <div id="div_g" style="width:600px; height:300px;"></div> | |
19 | </td><td>Zoom: click-drag<br/>Pan: shift-click-drag<br/>Restore zoom level: double-click<br/> | |
20 | </td></tr> | |
21 | <tr><td> | |
22 | <b>No interaction model</b> | |
23 | <div id="div_g2" style="width:600px; height:300px;"></div> | |
24 | </td><td>Click and drag all you like, it won't do anything!</td></tr> | |
25 | <tr><td> | |
26 | <b>Custom interaction model</b> | |
27 | ||
28 | <input type="button" value="Unzoom" onclick="unzoomGraph(g3)"> | |
29 | <div id="div_g3" style="width:600px; height:300px;"></div> | |
30 | </td><td> | |
31 | Zoom in: double-click, scroll wheel<br/> | |
32 | Zoom out: ctrl-double-click, scroll wheel<br/> | |
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33 | Standard Zoom: shift-click-drag |
34 | Standard Pan: click-drag<br/> | |
885c13e4 RK |
35 | Restore zoom level: press button<br/> |
36 | </td></tr> | |
37 | <tr><td> | |
38 | <b>Fun model!</b> | |
39 | <div id="div_g4" style="width:600px; height:300px;"></div> | |
40 | </td><td> | |
41 | Keep the mouse button pressed, and hover over all points | |
42 | to mark them. | |
43 | </td></tr> | |
44 | ||
45 | </table> | |
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47 | <script type="text/javascript"> |
48 | function downV3(event, g, context) { | |
49 | context.initializeMouseDown(event, g, context); | |
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50 | if (event.altKey || event.shiftKey) { |
51 | Dygraph.startZoom(event, g, context); | |
52 | } else { | |
53 | Dygraph.startPan(event, g, context); | |
54 | } | |
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55 | } |
56 | ||
57 | function moveV3(event, g, context) { | |
58 | if (context.isPanning) { | |
59 | Dygraph.movePan(event, g, context); | |
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60 | } else if (context.isZooming) { |
61 | Dygraph.moveZoom(event, g, context); | |
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62 | } |
63 | } | |
64 | ||
65 | function upV3(event, g, context) { | |
66 | if (context.isPanning) { | |
67 | Dygraph.endPan(event, g, context); | |
1f237ed6 RK |
68 | } else if (context.isZooming) { |
69 | Dygraph.endZoom(event, g, context); | |
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70 | } |
71 | } | |
72 | ||
73 | function dblClickV3(event, g, context) { | |
74 | if (event.ctrlKey) { | |
75 | zoom(g, -(1/9)); | |
76 | } else { | |
77 | zoom(g, +.1); | |
78 | } | |
79 | } | |
80 | ||
81 | function scrollV3(event, g, context) { | |
82 | var normal = event.detail ? event.detail * -1 : event.wheelDelta / 40; | |
83 | // For me the normalized value shows 0.075 for one click. If I took | |
84 | // that verbatim, it would be a 7.5%. I think I'm gonna take 1/10 of that. | |
85 | // (double for left and right side) | |
86 | var percentage = normal / 100; | |
87 | ||
88 | zoom(g, percentage); | |
89 | Dygraph.cancelEvent(event); | |
90 | } | |
91 | ||
92 | function zoom(g, percentage) { | |
93 | // Adjusts [x, y] toward each other by percentage% | |
94 | function adjustAxis(axis, percentage) { | |
95 | var delta = axis[1] - axis[0]; | |
96 | var increment = delta * percentage; | |
97 | return [ axis[0] + increment, axis[1] - increment ]; | |
98 | } | |
99 | ||
100 | var yAxes = g.yAxisRanges(); | |
101 | var newYAxes = []; | |
102 | for (var i = 0; i < yAxes.length; i++) { | |
103 | newYAxes[i] = adjustAxis(yAxes[i], percentage); | |
104 | } | |
105 | ||
106 | g.updateOptions({ | |
107 | dateWindow: adjustAxis(g.xAxisRange(), percentage), | |
108 | valueRange: newYAxes[0] | |
109 | }); | |
110 | } | |
111 | ||
112 | var v4Active = false; | |
113 | var v4Canvas = null; | |
114 | ||
115 | function downV4(event, g, context) { | |
116 | context.initializeMouseDown(event, g, context); | |
117 | v4Active = true; | |
118 | moveV4(event, g, context); // in case the mouse went down on a data point. | |
119 | } | |
120 | ||
121 | var processed = []; | |
122 | ||
123 | function moveV4(event, g, context) { | |
124 | var RANGE = 7; | |
125 | ||
126 | if (v4Active) { | |
127 | var canvasx = Dygraph.pageX(event) - Dygraph.findPosX(g.graphDiv); | |
128 | var canvasy = Dygraph.pageY(event) - Dygraph.findPosY(g.graphDiv); | |
129 | ||
130 | var rows = g.numRows(); | |
131 | // Row layout: | |
132 | // [date, [val1, stdev1], [val2, stdev2]] | |
133 | for (var row = 0; row < rows; row++) { | |
134 | var date = g.getValue(row, 0); | |
135 | var x = g.toDomCoords(date, null)[0]; | |
136 | var diff = Math.abs(canvasx - x); | |
137 | if (diff < RANGE) { | |
138 | for (var col = 1; col < 3; col++) { | |
139 | // TODO(konigsberg): these will throw exceptions as data is removed. | |
140 | var vals = g.getValue(row, col); | |
141 | if (vals == null) { continue; } | |
142 | var val = vals[0]; | |
143 | var y = g.toDomCoords(null, val)[1]; | |
144 | var diff2 = Math.abs(canvasy - y); | |
145 | if (diff2 < RANGE) { | |
146 | var found = false; | |
147 | for (var i in processed) { | |
148 | var stored = processed[i]; | |
149 | if(stored[0] == row && stored[1] == col) { | |
150 | found = true; | |
151 | break; | |
152 | } | |
153 | } | |
154 | if (!found) { | |
155 | processed.push([row, col]); | |
156 | drawV4(x, y); | |
157 | } | |
158 | return; | |
159 | } | |
160 | } | |
161 | // drawV4(false, canvasx, canvasy); | |
162 | } | |
163 | } | |
164 | // drawV4(false, canvasx, canvasy); | |
165 | } | |
166 | } | |
167 | ||
168 | function upV4(event, g, context) { | |
169 | if (v4Active) { | |
170 | v4Active = false; | |
171 | } | |
172 | } | |
173 | ||
174 | function dblClickV4(event, g, context) { | |
175 | unzoomGraph(g4); | |
176 | } | |
177 | ||
178 | function drawV4(x, y) { | |
179 | var ctx = v4Canvas; | |
180 | ||
181 | ctx.strokeStyle = "#000000"; | |
182 | ctx.fillStyle = "#FFFF00"; | |
183 | ctx.beginPath(); | |
184 | ctx.arc(x,y,5,0,Math.PI*2,true); | |
185 | ctx.closePath(); | |
186 | ctx.stroke(); | |
187 | ctx.fill(); | |
188 | } | |
189 | ||
190 | function captureCanvas(canvas, area, g) { | |
191 | v4Canvas = canvas; | |
192 | } | |
193 | ||
194 | var g = new Dygraph(document.getElementById("div_g"), | |
195 | NoisyData, { errorBars : true }); | |
196 | var g2 = new Dygraph(document.getElementById("div_g2"), | |
197 | NoisyData, { errorBars : true, interactionModel : {} }); | |
198 | var g3 = new Dygraph(document.getElementById("div_g3"), | |
199 | NoisyData, { errorBars : true, interactionModel : { | |
200 | 'mousedown' : downV3, | |
201 | 'mousemove' : moveV3, | |
202 | 'mouseup' : upV3, | |
203 | 'dblclick' : dblClickV3, | |
204 | 'mousewheel' : scrollV3 | |
205 | }}); | |
206 | var g4 = new Dygraph(document.getElementById("div_g4"), | |
207 | NoisyData, { errorBars : true, drawPoints : true, interactionModel : { | |
208 | 'mousedown' : downV4, | |
209 | 'mousemove' : moveV4, | |
210 | 'mouseup' : upV4, | |
211 | 'dblclick' : dblClickV4, | |
212 | }, | |
213 | underlayCallback : captureCanvas | |
214 | }); | |
215 | ||
216 | function unzoomGraph(g) { | |
217 | g.updateOptions({ | |
218 | dateWindow: null, | |
219 | valueRange: null | |
220 | }); | |
221 | } | |
222 | </script> | |
223 | ||
224 | </body> | |
225 | </html> |