reduce roughDTick by total length of breaks

- adjust tick spacing on x axes
- fixup tests

Author: archmoj

src/plots/cartesian/axes.js

@@ -536,7 +536,7 @@ axes.prepTicks = function(ax) {
         if(ax.tickmode === 'array') nt *= 100;
 
 
-        ax._roughDTick = Math.abs(rng[1] - rng[0]) / nt;
+        ax._roughDTick = (Math.abs(rng[1] - rng[0]) - (ax._lBreaks || 0)) / nt;
         axes.autoTicks(ax, ax._roughDTick);
 
         // check for a forced minimum dtick
@@ -628,7 +628,7 @@ axes.calcTicks = function calcTicks(ax) {
             var tf = 0;
             if(ax.tickmode === 'auto') {
                 tf =
-                    (ax._id.charAt(0) === 'y' ? 2 : 5) *
+                    (ax._id.charAt(0) === 'y' ? 2 : 6) *
                     (ax.tickfont ? ax.tickfont.size : 12);
             }
 

test/image/baselines/axes_breaks-candlestick2.png

@@ -856,7 +856,6 @@
             "text": "1D-z-array contour with rangebreaks"
         },
         "xaxis": {
-            "dtick": 1800000,
             "rangebreaks": [
                 {
                     "pattern": "hour",

test/image/baselines/axes_breaks-finance.png

@@ -128,7 +128,6 @@
             "text": "2D-z-array contour with rangebreaks"
         },
         "xaxis": {
-            "dtick": 1800000,
             "rangebreaks": [
                 {
                     "pattern": "hour",

test/image/baselines/axes_breaks-night_autorange-reversed.png

@@ -856,7 +856,6 @@
             "text": "1D-z-array heatmap with rangebreaks"
         },
         "xaxis": {
-            "dtick": 1800000,
             "rangebreaks": [
                 {
                     "pattern": "hour",

test/image/baselines/axes_breaks-overlap.png

@@ -128,7 +128,6 @@
             "text": "2D-z-array heatmap with rangebreaks"
         },
         "xaxis": {
-            "dtick": 1800000,
             "rangebreaks": [
                 {
                     "pattern": "hour",

test/image/baselines/axes_breaks-rangeslider.png

@@ -482,7 +482,6 @@
         "2020-01-02 16:55",
         "2020-01-03 09:55"
       ],
-      "dtick": 1800000,
       "rangebreaks": [{
         "pattern": "hour",
         "bounds": [18, 9]

test/image/baselines/axes_breaks-reversed-without-pattern.png

@@ -5016,7 +5016,7 @@ describe('Test axes', function() {
                 })
                 .then(function() {
                     _assert('with two rangebreaks', {
-                        tickVals: [0, 89, 189, 200]
+                        tickVals: [0, 5, 90, 95, 190, 195, 200]
                     });
                 })
                 .catch(failTest)