--- /dev/null
+
+<html>
+ <head>
+ <title>interaction model</title>
+ <!--[if IE]>
+ <script type="text/javascript" src="../excanvas.js"></script>
+ <![endif]-->
+ <script type="text/javascript" src="../strftime/strftime-min.js"></script>
+ <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
+ <script type="text/javascript" src="../dygraph-canvas.js"></script>
+ <script type="text/javascript" src="../dygraph.js"></script>
+ <script type="text/javascript" src="data.js"></script>
+ </head>
+ <body>
+ <table border='1'>
+ <tr><td>
+ <b>Default interaction model</b>
+ <div id="div_g" style="width:600px; height:300px;"></div>
+ </td><td>Zoom: click-drag<br/>Pan: shift-click-drag<br/>Restore zoom level: double-click<br/>
+ </td></tr>
+ <tr><td>
+ <b>No interaction model</b>
+ <div id="div_g2" style="width:600px; height:300px;"></div>
+ </td><td>Click and drag all you like, it won't do anything!</td></tr>
+ <tr><td>
+ <b>Custom interaction model</b>
+
+ <input type="button" value="Unzoom" onclick="unzoomGraph(g3)">
+ <div id="div_g3" style="width:600px; height:300px;"></div>
+ </td><td>
+ Zoom in: double-click, scroll wheel<br/>
+ Zoom out: ctrl-double-click, scroll wheel<br/>
+ Pan: click-drag<br/>
+ Restore zoom level: press button<br/>
+ </td></tr>
+ <tr><td>
+ <b>Fun model!</b>
+ <div id="div_g4" style="width:600px; height:300px;"></div>
+ </td><td>
+ Keep the mouse button pressed, and hover over all points
+ to mark them.
+ </td></tr>
+
+ </table>
+
+ <script type="text/javascript">
+ function downV3(event, g, context) {
+ context.initializeMouseDown(event, g, context);
+ Dygraph.startPan(event, g, context);
+ }
+
+ function moveV3(event, g, context) {
+ if (context.isPanning) {
+ Dygraph.movePan(event, g, context);
+ }
+ }
+
+ function upV3(event, g, context) {
+ if (context.isPanning) {
+ Dygraph.endPan(event, g, context);
+ }
+ }
+
+ function dblClickV3(event, g, context) {
+ if (event.ctrlKey) {
+ zoom(g, -(1/9));
+ } else {
+ zoom(g, +.1);
+ }
+ }
+
+ function scrollV3(event, g, context) {
+ var normal = event.detail ? event.detail * -1 : event.wheelDelta / 40;
+ // For me the normalized value shows 0.075 for one click. If I took
+ // that verbatim, it would be a 7.5%. I think I'm gonna take 1/10 of that.
+ // (double for left and right side)
+ var percentage = normal / 100;
+
+ zoom(g, percentage);
+ Dygraph.cancelEvent(event);
+ }
+
+ function zoom(g, percentage) {
+ // Adjusts [x, y] toward each other by percentage%
+ function adjustAxis(axis, percentage) {
+ var delta = axis[1] - axis[0];
+ var increment = delta * percentage;
+ return [ axis[0] + increment, axis[1] - increment ];
+ }
+
+ var yAxes = g.yAxisRanges();
+ var newYAxes = [];
+ for (var i = 0; i < yAxes.length; i++) {
+ newYAxes[i] = adjustAxis(yAxes[i], percentage);
+ }
+
+ g.updateOptions({
+ dateWindow: adjustAxis(g.xAxisRange(), percentage),
+ valueRange: newYAxes[0]
+ });
+ }
+
+ var v4Active = false;
+ var v4Canvas = null;
+
+ function downV4(event, g, context) {
+ context.initializeMouseDown(event, g, context);
+ v4Active = true;
+ moveV4(event, g, context); // in case the mouse went down on a data point.
+ }
+
+ var processed = [];
+
+ function moveV4(event, g, context) {
+ var RANGE = 7;
+
+ if (v4Active) {
+ var canvasx = Dygraph.pageX(event) - Dygraph.findPosX(g.graphDiv);
+ var canvasy = Dygraph.pageY(event) - Dygraph.findPosY(g.graphDiv);
+
+ var rows = g.numRows();
+ // Row layout:
+ // [date, [val1, stdev1], [val2, stdev2]]
+ for (var row = 0; row < rows; row++) {
+ var date = g.getValue(row, 0);
+ var x = g.toDomCoords(date, null)[0];
+ var diff = Math.abs(canvasx - x);
+ if (diff < RANGE) {
+ for (var col = 1; col < 3; col++) {
+ // TODO(konigsberg): these will throw exceptions as data is removed.
+ var vals = g.getValue(row, col);
+ if (vals == null) { continue; }
+ var val = vals[0];
+ var y = g.toDomCoords(null, val)[1];
+ var diff2 = Math.abs(canvasy - y);
+ if (diff2 < RANGE) {
+ var found = false;
+ for (var i in processed) {
+ var stored = processed[i];
+ if(stored[0] == row && stored[1] == col) {
+ found = true;
+ break;
+ }
+ }
+ if (!found) {
+ processed.push([row, col]);
+ drawV4(x, y);
+ }
+ return;
+ }
+ }
+ // drawV4(false, canvasx, canvasy);
+ }
+ }
+ // drawV4(false, canvasx, canvasy);
+ }
+ }
+
+ function upV4(event, g, context) {
+ if (v4Active) {
+ v4Active = false;
+ }
+ }
+
+ function dblClickV4(event, g, context) {
+ unzoomGraph(g4);
+ }
+
+ function drawV4(x, y) {
+ var ctx = v4Canvas;
+
+ ctx.strokeStyle = "#000000";
+ ctx.fillStyle = "#FFFF00";
+ ctx.beginPath();
+ ctx.arc(x,y,5,0,Math.PI*2,true);
+ ctx.closePath();
+ ctx.stroke();
+ ctx.fill();
+ }
+
+ function captureCanvas(canvas, area, g) {
+ v4Canvas = canvas;
+ }
+
+ var g = new Dygraph(document.getElementById("div_g"),
+ NoisyData, { errorBars : true });
+ var g2 = new Dygraph(document.getElementById("div_g2"),
+ NoisyData, { errorBars : true, interactionModel : {} });
+ var g3 = new Dygraph(document.getElementById("div_g3"),
+ NoisyData, { errorBars : true, interactionModel : {
+ 'mousedown' : downV3,
+ 'mousemove' : moveV3,
+ 'mouseup' : upV3,
+ 'dblclick' : dblClickV3,
+ 'mousewheel' : scrollV3
+ }});
+ var g4 = new Dygraph(document.getElementById("div_g4"),
+ NoisyData, { errorBars : true, drawPoints : true, interactionModel : {
+ 'mousedown' : downV4,
+ 'mousemove' : moveV4,
+ 'mouseup' : upV4,
+ 'dblclick' : dblClickV4,
+ },
+ underlayCallback : captureCanvas
+ });
+
+ function unzoomGraph(g) {
+ g.updateOptions({
+ dateWindow: null,
+ valueRange: null
+ });
+ }
+ </script>
+
+ </body>
+</html>
projects / dygraphs.git / blobdiff