Click the buttons to change the zoom level or just use the normal
+ click-and drag. While zoom typically works by click-and-drag, the
+ buttons are useful for testing.
Window coordinates (in dates and values):
-
+
Zoom operations:
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
@@ -31,7 +39,10 @@
g = new Dygraph(
document.getElementById("div_g"),
NoisyData, {
- zoomCallback : function(a,b,c,d) { showDimensions(a,b,c,d); }
+ errorBars: true,
+ zoomCallback : function(minDate, maxDate, yRange) {
+ showDimensions(minDate, maxDate, yRange);
+ }
}
);
@@ -41,33 +52,43 @@
// Pull an initial value for logging.
var minDate = g.xAxisRange()[0];
var maxDate = g.xAxisRange()[1];
- var minValue = g.yAxisRange()[0];
- var maxValue = g.yAxisRange()[1];
+ var minValue = g.yAxisRange();
+ showDimensions(minDate, maxDate, yAxisRange);
- showDimensions(minDate, maxDate, minValue, maxValue);
+ function showDimensions(minDate, maxDate, yAxisRange) {
+ showXDimensions(minDate, maxDate);
+ showYDimensions(yAxisRange);
+ }
+
+ function showXDimensions(first, second) {
+ var elem = document.getElementById("xdimensions");
+ elem.innerHTML = "dateWindow : [" + first + ", "+ second + "]";
+ }
+
+ function showYDimensions(range) {
+ var elem = document.getElementById("ydimensions");
+ elem.innerHTML = "valueRange : [" + range + "]";
+ }
+
+ function zoomGraphX(minDate, maxDate) {
+ g.updateOptions({
+ dateWindow: [minDate, maxDate]
+ });
+ showXDimensions(minDate, maxDate);
+ }
- function showDimensions(minDate, maxDate, minValue, maxValue) {
- var elem = document.getElementById("dimensions");
- elem.innerHTML =
- "dateWindow : [" + minDate + " , "+ maxDate + "], " +
- "valueRange : [" + minValue + " , "+ maxValue + "],";
+ function zoomGraphY(minValue, maxValue) {
+ g.updateOptions({
+ valueRange: [minValue, maxValue]
+ });
+ showYDimensions(minValue, maxValue);
}
- function sizeGraph(i) {
- switch(i) {
- case 0: g.doUnzoom_();
- break;
- case 1: g.doZoomYValues_(5, 3);
- break;
- case 2: g.doZoomYValues_(4, 0);
- break;
- case 3: g.doZoomYValues_(4, 2);
- break;
- case 4: g.doZoomYValues_(2, 0);
- break;
- case 5: g.doZoomYValues_(1, 0);
- break;
- }
+ function unzoomGraph() {
+ g.updateOptions({
+ dateWindow: null,
+ valueRange: null
+ });
}