var i, axis;
context.isPanning = true;
var xRange = g.xAxisRange();
- context.dateRange = xRange[1] - xRange[0];
- context.initialLeftmostDate = xRange[0];
+
+ if (g.getOptionForAxis("logscale", 'x')) {
+ context.initialLeftmostDate = Dygraph.log10(xRange[0]);
+ context.dateRange = Dygraph.log10(xRange[1]) - Dygraph.log10(xRange[0]);
+ } else {
+ context.initialLeftmostDate = xRange[0];
+ context.dateRange = xRange[1] - xRange[0];
+ }
context.xUnitsPerPixel = context.dateRange / (g.plotter_.area.w - 1);
if (g.attr_("panEdgeFraction")) {
var boundedTopY = g.toDomYCoord(yExtremes[0], i) + maxYPixelsToDraw;
var boundedBottomY = g.toDomYCoord(yExtremes[1], i) - maxYPixelsToDraw;
- var boundedTopValue = g.toDataYCoord(boundedTopY);
- var boundedBottomValue = g.toDataYCoord(boundedBottomY);
+ var boundedTopValue = g.toDataYCoord(boundedTopY, i);
+ var boundedBottomValue = g.toDataYCoord(boundedBottomY, i);
boundedValues[i] = [boundedTopValue, boundedBottomValue];
}
}
}
- g.dateWindow_ = [minDate, maxDate];
+ if (g.getOptionForAxis("logscale", 'x')) {
+ g.dateWindow_ = [ Math.pow(Dygraph.LOG_SCALE, minDate),
+ Math.pow(Dygraph.LOG_SCALE, maxDate) ];
+ } else {
+ g.dateWindow_ = [minDate, maxDate];
+ }
// y-axis scaling is automatic unless this is a full 2D pan.
if (context.is2DPan) {
+
+ var pixelsDragged = context.dragEndY - context.dragStartY;
+
// Adjust each axis appropriately.
for (var i = 0; i < g.axes_.length; i++) {
var axis = g.axes_[i];
var axis_data = context.axes[i];
-
- var pixelsDragged = context.dragEndY - context.dragStartY;
var unitsDragged = pixelsDragged * axis_data.unitsPerPixel;
var boundedValue = context.boundedValues ? context.boundedValues[i] : null;
minValue = maxValue - axis_data.dragValueRange;
}
}
- var logscale = g.attributes_.getForAxis("logscale", i);
- if (logscale) {
+ if (g.attributes_.getForAxis("logscale", i)) {
axis.valueWindow = [ Math.pow(Dygraph.LOG_SCALE, minValue),
Math.pow(Dygraph.LOG_SCALE, maxValue) ];
} else {
if (regionWidth >= 10 && context.dragDirection == Dygraph.HORIZONTAL) {
var left = Math.min(context.dragStartX, context.dragEndX),
right = Math.max(context.dragStartX, context.dragEndX);
- g.doZoomX_(Math.max(left, plotArea.x),
- Math.min(right, plotArea.x + plotArea.w));
+ left = Math.max(left, plotArea.x);
+ right = Math.min(right, plotArea.x + plotArea.w);
+ if (left < right) {
+ g.doZoomX_(left, right);
+ }
context.cancelNextDblclick = true;
} else if (regionHeight >= 10 && context.dragDirection == Dygraph.VERTICAL) {
var top = Math.min(context.dragStartY, context.dragEndY),
bottom = Math.max(context.dragStartY, context.dragEndY);
- g.doZoomY_(Math.max(top, plotArea.y),
- Math.min(bottom, plotArea.y + plotArea.h));
+ top = Math.max(top, plotArea.y);
+ bottom = Math.min(bottom, plotArea.y + plotArea.h);
+ if (top < bottom) {
+ g.doZoomY_(top, bottom);
+ }
context.cancelNextDblclick = true;
} else {
if (context.zoomMoved) g.clearZoomRect_();