for (var i = 0; i < setCount; i++) {
var setName = setNames[i];
var color = this.colors[setName];
+ var strokeWidth = this.dygraph_.attr_("strokeWidth", setName);
// setup graphics context
context.save();
var point = this.layout.points[0];
- var pointSize = this.dygraph_.attr_("pointSize");
+ var pointSize = this.dygraph_.attr_("pointSize", setName);
var prevX = null, prevY = null;
- var drawPoints = this.dygraph_.attr_("drawPoints");
+ var drawPoints = this.dygraph_.attr_("drawPoints", setName);
var points = this.layout.points;
for (var j = 0; j < points.length; j++) {
var point = points[j];
prevX = point.canvasx;
prevY = point.canvasy;
} else {
- ctx.beginPath();
- ctx.strokeStyle = color;
- ctx.lineWidth = this.options.strokeWidth;
- ctx.moveTo(prevX, prevY);
- if (stepPlot) {
- ctx.lineTo(point.canvasx, prevY);
+ // TODO(danvk): figure out why this conditional is necessary.
+ if (strokeWidth) {
+ ctx.beginPath();
+ ctx.strokeStyle = color;
+ ctx.lineWidth = strokeWidth;
+ ctx.moveTo(prevX, prevY);
+ if (stepPlot) {
+ ctx.lineTo(point.canvasx, prevY);
+ }
+ prevX = point.canvasx;
+ prevY = point.canvasy;
+ ctx.lineTo(prevX, prevY);
+ ctx.stroke();
}
- prevX = point.canvasx;
- prevY = point.canvasy;
- ctx.lineTo(prevX, prevY);
- ctx.stroke();
}
if (drawPoints || isIsolated) {
this.start_();
};
-Dygraph.prototype.attr_ = function(name) {
- if (typeof(this.user_attrs_[name]) != 'undefined') {
+Dygraph.prototype.attr_ = function(name, seriesName) {
+ if (seriesName &&
+ typeof(this.user_attrs_[seriesName]) != 'undefined' &&
+ this.user_attrs_[seriesName] != null &&
+ typeof(this.user_attrs_[seriesName][name]) != 'undefined') {
+ return this.user_attrs_[seriesName][name];
+ } else if (typeof(this.user_attrs_[name]) != 'undefined') {
return this.user_attrs_[name];
} else if (typeof(this.attrs_[name]) != 'undefined') {
return this.attrs_[name];
*/
Dygraph.prototype.updateSelection_ = function() {
// Clear the previously drawn vertical, if there is one
- var circleSize = this.attr_('highlightCircleSize');
var ctx = this.canvas_.getContext("2d");
if (this.previousVerticalX_ >= 0) {
+ // Determine the maximum highlight circle size.
+ var maxCircleSize = 0;
+ var labels = this.attr_('labels');
+ for (var i = 1; i < labels.length; i++) {
+ var r = this.attr_('highlightCircleSize', labels[i]);
+ if (r > maxCircleSize) maxCircleSize = r;
+ }
var px = this.previousVerticalX_;
- ctx.clearRect(px - circleSize - 1, 0, 2 * circleSize + 2, this.height_);
+ ctx.clearRect(px - maxCircleSize - 1, 0,
+ 2 * maxCircleSize + 2, this.height_);
}
var isOK = function(x) { return x && !isNaN(x); };
ctx.save();
for (var i = 0; i < this.selPoints_.length; i++) {
if (!isOK(this.selPoints_[i].canvasy)) continue;
+ var circleSize =
+ this.attr_('highlightCircleSize', this.selPoints_[i].name);
ctx.beginPath();
ctx.fillStyle = this.plotter_.colors[this.selPoints_[i].name];
ctx.arc(canvasx, this.selPoints_[i].canvasy, circleSize,
this.setColors_();
this.attrs_['pointSize'] = 0.5 * this.attr_('highlightCircleSize');
- var connectSeparatedPoints = this.attr_('connectSeparatedPoints');
-
// Loop over the fields (series). Go from the last to the first,
// because if they're stacked that's how we accumulate the values.
for (var i = data[0].length - 1; i >= 1; i--) {
if (!this.visibility()[i - 1]) continue;
+ var connectSeparatedPoints = this.attr_('connectSeparatedPoints', i);
+
var series = [];
for (var j = 0; j < data.length; j++) {
if (data[j][i] != null || !connectSeparatedPoints) {
if (attrs.valueRange) {
this.valueRange_ = attrs.valueRange;
}
+
+ // TODO(danvk): validate per-series options.
+ // Supported:
+ // strokeWidth
+ // pointSize
+ // drawPoints
+ // highlightCircleSize
+
Dygraph.update(this.user_attrs_, attrs);
Dygraph.update(this.renderOptions_, attrs);
return this.annotations_;
};
+/**
+ * Get the index of a series (column) given its name. The first column is the
+ * x-axis, so the data series start with index 1.
+ */
+Dygraph.prototype.indexFromSetName = function(name) {
+ var labels = this.attr_("labels");
+ for (var i = 0; i < labels.length; i++) {
+ if (labels[i] == name) return i;
+ }
+ return null;
+};
+
Dygraph.addAnnotationRule = function() {
if (Dygraph.addedAnnotationCSS) return;
{
labels: labels,
drawPoints: true,
+ strokeWidth: 0.0,
drawCallback: function(g, is_initial) {
if (!is_initial) return;
var c = g.getColors();
// Generate a new data set with the regression lines.
var new_labels = [];
var new_colors = [];
+ var new_opts = {};
for (var i = 0; i < labels.length; i++) {
new_labels.push(labels[i]);
if (i) new_colors.push(orig_colors[i - 1]);
if (coeffs[i]) {
// Darken the series by 50% to generate its regression.
- new_labels.push(labels[i] + " Regression");
+ var label = labels[i] + " Regression";
+ new_labels.push(label);
var c = new RGBColor(orig_colors[i - 1]);
c.r = Math.floor(255 - 0.5 * (255 - c.r));
c.g = Math.floor(255 - 0.5 * (255 - c.g));
c.b = Math.floor(255 - 0.5 * (255 - c.b));
new_colors.push(c.toHex());
+ new_opts[label] = {
+ drawPoints: false,
+ strokeWidth: 1.0
+ };
}
}
}
}
- // TODO(danvk): set colors intelligently.
-
- g.updateOptions({
- file: new_data,
- labels: new_labels,
- colors: new_colors
- });
+ new_opts.file = new_data;
+ new_opts.labels = new_labels;
+ new_opts.colors = new_colors;
+ g.updateOptions(new_opts);
}
function clearLines() {
for (var i = 0; i < coeffs.length; i++) coeffs[i] = null;
updateChart();
}
-
- // function drawLines(ctx, area, layout) {
- // if (typeof(g) == 'undefined') return; // won't be set on the initial draw.
-
- // var range = g.xAxisRange();
- // for (var i = 0; i < coeffs.length; i++) {
- // if (!coeffs[i]) continue;
- // var a = coeffs[i][1];
- // var b = coeffs[i][0];
-
- // var x1 = range[0];
- // var y1 = a * x1 + b;
- // var x2 = range[1];
- // var y2 = a * x2 + b;
-
- // var p1 = g.toDomCoords(x1, y1);
- // var p2 = g.toDomCoords(x2, y2);
-
- // var color = g.getColors()[i - 1];
- // ctx.save();
- // ctx.strokeStyle = color;
- // ctx.lineWidth = 1.0;
- // ctx.beginPath();
- // ctx.moveTo(p1[0], p1[1]);
- // ctx.lineTo(p2[0], p2[1]);
- // ctx.closePath();
- // ctx.stroke();
- // ctx.restore();
- // }
- // }
</script>
{
labels: ['X', 'Y1', 'Y2'],
underlayCallback: drawLines,
- drawPoints: true
+ drawPoints: true,
+ strokeWidth: 0.0
}
);
--- /dev/null
+<html>
+ <head>
+ <title>Per-Series Properties</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>
+ </head>
+ <body>
+ <h2>Chart with per-series properties</h2>
+ <div id="demodiv"></div>
+ <br/><br/>
+ <div id="demodiv2"></div>
+
+ <script type="text/javascript">
+ g = new Dygraph(
+ document.getElementById("demodiv"),
+ function() {
+ var zp = function(x) { if (x < 10) return "0"+x; else return x; };
+ var r = "date,parabola,line,another line,sine wave\n";
+ for (var i=1; i<=31; i++) {
+ r += "200610" + zp(i);
+ r += "," + 10*(i*(31-i));
+ r += "," + 10*(8*i);
+ r += "," + 10*(250 - 8*i);
+ r += "," + 10*(125 + 125 * Math.sin(0.3*i));
+ r += "\n";
+ }
+ return r;
+ },
+ {
+ strokeWidth: 2,
+ 'parabola': {
+ strokeWidth: 0.0,
+ drawPoints: true,
+ pointSize: 4,
+ highlightCircleSize: 6
+ },
+ 'line': {
+ strokeWidth: 1.0,
+ drawPoints: true,
+ pointSize: 1.5
+ },
+ 'sine wave': {
+ strokeWidth: 3,
+ highlightCircleSize: 10
+ }
+ }
+ );
+ </script>
+</body>
+</html>
projects / dygraphs.git / commitdiff