declare isReversed() function

Author: archmoj

src/plots/cartesian/autorange.js

@@ -87,6 +87,12 @@ function getAutoRange(gd, ax) {
     if(ax.autorange === 'reversed') {
         axReverse = true;
         ax.autorange = true;
+    } else if(ax.autorange === 'min reversed') {
+        axReverse = true;
+        ax.autorange = 'min';
+    } else if(ax.autorange === 'max reversed') {
+        axReverse = true;
+        ax.autorange = 'max';
     }
 
     var rangeMode = ax.rangemode;
@@ -214,7 +220,7 @@ function makePadFn(fullLayout, ax, max) {
         (ax.ticklabelposition || '').indexOf('inside') !== -1 ||
         (anchorAxis.ticklabelposition || '').indexOf('inside') !== -1
     ) {
-        var axReverse = ax.autorange === 'reversed';
+        var axReverse = ax.isReversed();
         if(!axReverse) {
             var rng = Lib.simpleMap(ax.range, ax.r2l);
             axReverse = rng[1] < rng[0];

src/plots/cartesian/set_convert.js

@@ -901,6 +901,15 @@ module.exports = function setConvert(ax, fullLayout) {
         return autorangeDflt;
     };
 
+    ax.isReversed = function() {
+        var autorange = ax.autorange;
+        return (
+            autorange === 'reversed' ||
+            autorange === 'min reversed' ||
+            autorange === 'max reversed'
+        );
+    };
+
     ax.isPtWithinRange = function(d, calendar) {
         var coord = ax.c2l(d[axLetter], null, calendar);
         var r0 = ax.r2l(ax.range[0]);

src/plots/gl3d/scene.js

@@ -738,7 +738,7 @@ proto.plot = function(sceneData, fullLayout, layout) {
             sceneBounds[0][i] = range[0];
             sceneBounds[1][i] = range[1];
 
-            if(axis.autorange === 'reversed') {
+            if(axis.isReversed()) {
                 // swap bounds:
                 var tmp = sceneBounds[0][i];
                 sceneBounds[0][i] = sceneBounds[1][i];

src/plots/polar/layout_defaults.js

@@ -89,7 +89,7 @@ function handleDefaults(contIn, contOut, coerce, opts) {
                     handleAutorangeOptionsDefaults(coerceAxis);
 
                     if(axType === 'linear' || axType === '-') coerceAxis('rangemode');
-                    if(autoRange === 'reversed') axOut._m = -1;
+                    if(axOut.isReversed()) axOut._m = -1;
                 }
 
                 axOut.cleanRange('range', {dfltRange: [0, 1]});