* dragStartX/dragStartY/etc. properties). This function modifies the context.
*/
Dygraph.Interaction.startPan = function(event, g, context) {
* dragStartX/dragStartY/etc. properties). This function modifies the context.
*/
Dygraph.Interaction.startPan = function(event, g, context) {
context.isPanning = true;
var xRange = g.xAxisRange();
context.dateRange = xRange[1] - xRange[0];
context.isPanning = true;
var xRange = g.xAxisRange();
context.dateRange = xRange[1] - xRange[0];
var yExtremes = axis.extremeRange;
var boundedTopY = g.toDomYCoord(yExtremes[0], i) + maxYPixelsToDraw;
var yExtremes = axis.extremeRange;
var boundedTopY = g.toDomYCoord(yExtremes[0], i) + maxYPixelsToDraw;
// Record the range of each y-axis at the start of the drag.
// If any axis has a valueRange or valueWindow, then we want a 2D pan.
context.is2DPan = false;
// Record the range of each y-axis at the start of the drag.
// If any axis has a valueRange or valueWindow, then we want a 2D pan.
context.is2DPan = false;
var yRange = g.yAxisRange(i);
// TODO(konigsberg): These values should be in |context|.
// In log scale, initialTopValue, dragValueRange and unitsPerPixel are log scale.
var yRange = g.yAxisRange(i);
// TODO(konigsberg): These values should be in |context|.
// In log scale, initialTopValue, dragValueRange and unitsPerPixel are log scale.
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&
var regionHeight = Math.abs(context.dragEndY - context.dragStartY);
if (regionWidth < 2 && regionHeight < 2 &&