X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-interaction-model.js;h=2af345c7dcf7f4f7fe18d9871dc1db4900bc76af;hb=94647da23ed251ba0f1da8d155d2552680a4e9cf;hp=b1981d77ce9ed2460f063f73e660e4115a97371a;hpb=b04888ccae2e78f4b1113e3904e2828d8dcaed08;p=dygraphs.git

diff --git a/dygraph-interaction-model.js b/dygraph-interaction-model.js
index b1981d7..2af345c 100644
--- a/dygraph-interaction-model.js
+++ b/dygraph-interaction-model.js
@@ -63,8 +63,8 @@ Dygraph.Interaction.startPan = function(event, g, context) {
       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];
     }
@@ -136,12 +136,13 @@ Dygraph.Interaction.movePan = function(event, g, context) {
 
   // 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;
@@ -349,14 +350,20 @@ Dygraph.Interaction.endZoom = function(event, g, context) {
   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_();