Dygraph.WARNING = 3;
Dygraph.ERROR = 3;
+// Used for initializing annotation CSS rules only once.
+Dygraph.addedAnnotationCSS = false;
+
Dygraph.prototype.__old_init__ = function(div, file, labels, attrs) {
// Labels is no longer a constructor parameter, since it's typically set
// directly from the data source. It also conains a name for the x-axis,
this.valueRange_ = attrs.valueRange || null;
this.wilsonInterval_ = attrs.wilsonInterval || true;
this.is_initial_draw_ = true;
+ this.annotations_ = [];
// Clear the div. This ensure that, if multiple dygraphs are passed the same
// div, then only one will be drawn.
// Make a note of whether labels will be pulled from the CSV file.
this.labelsFromCSV_ = (this.attr_("labels") == null);
+ Dygraph.addAnnotationRule();
+
// Create the containing DIV and other interactive elements
this.createInterface_();
}
for (var i = 1; i < datasets.length; i++) {
+ if (!this.visibility()[i - 1]) continue;
this.layout_.addDataset(this.attr_("labels")[i], datasets[i]);
}
this.attrs_.labels = lines[0].split(delim);
}
+ // Parse the x as a float or return null if it's not a number.
+ var parseFloatOrNull = function(x) {
+ if (x.length == 0) return null;
+ return parseFloat(x);
+ };
+
var xParser;
var defaultParserSet = false; // attempt to auto-detect x value type
var expectedCols = this.attr_("labels").length;
for (var j = 1; j < inFields.length; j++) {
// TODO(danvk): figure out an appropriate way to flag parse errors.
var vals = inFields[j].split("/");
- fields[j] = [parseFloat(vals[0]), parseFloat(vals[1])];
+ fields[j] = [parseFloatOrNull(vals[0]), parseFloatOrNull(vals[1])];
}
} else if (this.attr_("errorBars")) {
// If there are error bars, values are (value, stddev) pairs
for (var j = 1; j < inFields.length; j += 2)
- fields[(j + 1) / 2] = [parseFloat(inFields[j]),
- parseFloat(inFields[j + 1])];
+ fields[(j + 1) / 2] = [parseFloatOrNull(inFields[j]),
+ parseFloatOrNull(inFields[j + 1])];
} else if (this.attr_("customBars")) {
// Bars are a low;center;high tuple
for (var j = 1; j < inFields.length; j++) {
var vals = inFields[j].split(";");
- fields[j] = [ parseFloat(vals[0]),
- parseFloat(vals[1]),
- parseFloat(vals[2]) ];
+ fields[j] = [ parseFloatOrNull(vals[0]),
+ parseFloatOrNull(vals[1]),
+ parseFloatOrNull(vals[2]) ];
}
} else {
// Values are just numbers
for (var j = 1; j < inFields.length; j++) {
- fields[j] = parseFloat(inFields[j]);
+ fields[j] = parseFloatOrNull(inFields[j]);
}
}
if (ret.length > 0 && fields[0] < ret[ret.length - 1][0]) {
* The data is expected to have a first column that is either a date or a
* number. All subsequent columns must be numbers. If there is a clear mismatch
* between this.xValueParser_ and the type of the first column, it will be
- * fixed. Returned value is in the same format as return value of parseCSV_.
+ * fixed. Fills out rawData_.
* @param {Array.<Object>} data See above.
* @private
*/
var cols = data.getNumberOfColumns();
var rows = data.getNumberOfRows();
- // Read column labels
- var labels = [];
- for (var i = 0; i < cols; i++) {
- labels.push(data.getColumnLabel(i));
- if (i != 0 && this.attr_("errorBars")) i += 1;
- }
- this.attrs_.labels = labels;
- cols = labels.length;
-
var indepType = data.getColumnType(0);
if (indepType == 'date' || indepType == 'datetime') {
this.attrs_.xValueFormatter = Dygraph.dateString_;
return null;
}
+ // Array of the column indices which contain data (and not annotations).
+ var colIdx = [];
+ var annotationCols = {}; // data index -> [annotation cols]
+ var hasAnnotations = false;
+ for (var i = 1; i < cols; i++) {
+ var type = data.getColumnType(i);
+ if (type == 'number') {
+ colIdx.push(i);
+ } else if (type == 'string' && this.attr_('displayAnnotations')) {
+ // This is OK -- it's an annotation column.
+ var dataIdx = colIdx[colIdx.length - 1];
+ if (!annotationCols.hasOwnProperty(dataIdx)) {
+ annotationCols[dataIdx] = [i];
+ } else {
+ annotationCols[dataIdx].push(i);
+ }
+ hasAnnotations = true;
+ } else {
+ this.error("Only 'number' is supported as a dependent type with Gviz." +
+ " 'string' is only supported if displayAnnotations is true");
+ }
+ }
+
+ // Read column labels
+ // TODO(danvk): add support back for errorBars
+ var labels = [data.getColumnLabel(0)];
+ for (var i = 0; i < colIdx.length; i++) {
+ labels.push(data.getColumnLabel(colIdx[i]));
+ }
+ this.attrs_.labels = labels;
+ cols = labels.length;
+
var ret = [];
var outOfOrder = false;
+ var annotations = [];
for (var i = 0; i < rows; i++) {
var row = [];
if (typeof(data.getValue(i, 0)) === 'undefined' ||
row.push(data.getValue(i, 0));
}
if (!this.attr_("errorBars")) {
- for (var j = 1; j < cols; j++) {
- row.push(data.getValue(i, j));
+ for (var j = 0; j < colIdx.length; j++) {
+ var col = colIdx[j];
+ row.push(data.getValue(i, col));
+ if (hasAnnotations &&
+ annotationCols.hasOwnProperty(col) &&
+ data.getValue(i, annotationCols[col][0]) != null) {
+ var ann = {};
+ ann.series = data.getColumnLabel(col);
+ ann.xval = row[0];
+ ann.shortText = String.fromCharCode(65 /* A */ + annotations.length)
+ ann.text = '';
+ for (var k = 0; k < annotationCols[col].length; k++) {
+ if (k) ann.text += "\n";
+ ann.text += data.getValue(i, annotationCols[col][k]);
+ }
+ annotations.push(ann);
+ }
}
} else {
for (var j = 0; j < cols - 1; j++) {
this.warn("DataTable is out of order; order it correctly to speed loading.");
ret.sort(function(a,b) { return a[0] - b[0] });
}
- return ret;
+ this.rawData_ = ret;
+
+ if (annotations.length > 0) {
+ this.setAnnotations(annotations, true);
+ }
}
// These functions are all based on MochiKit.
} else if (typeof this.file_ == 'object' &&
typeof this.file_.getColumnRange == 'function') {
// must be a DataTable from gviz.
- this.rawData_ = this.parseDataTable_(this.file_);
+ this.parseDataTable_(this.file_);
this.drawGraph_(this.rawData_);
} else if (typeof this.file_ == 'string') {
// Heuristic: a newline means it's CSV data. Otherwise it's an URL.
this.valueRange_ = attrs.valueRange;
}
Dygraph.update(this.user_attrs_, attrs);
+ Dygraph.update(this.renderOptions_, attrs);
this.labelsFromCSV_ = (this.attr_("labels") == null);
};
/**
+ * Update the list of annotations and redraw the chart.
+ */
+Dygraph.prototype.setAnnotations = function(ann, suppressDraw) {
+ this.annotations_ = ann;
+ this.layout_.setAnnotations(this.annotations_);
+ if (!suppressDraw) {
+ this.drawGraph_(this.rawData_);
+ }
+};
+
+/**
+ * Return the list of annotations.
+ */
+Dygraph.prototype.annotations = function() {
+ return this.annotations_;
+};
+
+Dygraph.addAnnotationRule = function() {
+ if (Dygraph.addedAnnotationCSS) return;
+
+ var mysheet;
+ if (document.styleSheets.length > 0) {
+ mysheet = document.styleSheets[0];
+ } else {
+ var styleSheetElement = document.createElement("style");
+ styleSheetElement.type = "text/css";
+ document.getElementsByTagName("head")[0].appendChild(styleSheetElement);
+ for(i = 0; i < document.styleSheets.length; i++) {
+ if (document.styleSheets[i].disabled) continue;
+ mysheet = document.styleSheets[i];
+ }
+ }
+
+ var rule = "border: 1px solid black; " +
+ "background-color: white; " +
+ "text-align: center;";
+ if (mysheet.insertRule) { // Firefox
+ mysheet.insertRule(".dygraphDefaultAnnotation { " + rule + " }");
+ } else if (mysheet.addRule) { // IE
+ mysheet.addRule(".dygraphDefaultAnnotation", rule);
+ }
+
+ Dygraph.addedAnnotationCSS = true;
+}
+
+/**
* Create a new canvas element. This is more complex than a simple
* document.createElement("canvas") because of IE and excanvas.
*/
projects / dygraphs.git / blobdiff