Add pattern fill for scatter filled area

draftlogs/6101_add.md

@@ -0,0 +1 @@
+ - Add pattern fill for scatter filled area

src/components/drawing/index.js

@@ -177,24 +177,42 @@ drawing.dashStyle = function(dash, lineWidth) {
     return dash;
 };
 
+function setFillStyle(sel, trace, gd) {
+    var markerPattern = trace.fillpattern;
+    var patternShape = markerPattern && drawing.getPatternAttr(markerPattern.shape, 0, '');
+    if(patternShape) {
+        var patternBGColor = drawing.getPatternAttr(markerPattern.bgcolor, 0, null);
+        var patternFGColor = drawing.getPatternAttr(markerPattern.fgcolor, 0, null);
+        var patternFGOpacity = markerPattern.fgopacity;
+        var patternSize = drawing.getPatternAttr(markerPattern.size, 0, 8);
+        var patternSolidity = drawing.getPatternAttr(markerPattern.solidity, 0, 0.3);
+        var patternID = trace.uid;
+        drawing.pattern(sel, 'point', gd, patternID,
+            patternShape, patternSize, patternSolidity,
+            undefined, markerPattern.fillmode,
+            patternBGColor, patternFGColor, patternFGOpacity
+        );
+    } else if(trace.fillcolor) {
+        sel.call(Color.fill, trace.fillcolor);
+    }
+}
+
 // Same as fillGroupStyle, except in this case the selection may be a transition
-drawing.singleFillStyle = function(sel) {
+drawing.singleFillStyle = function(sel, gd) {
     var node = d3.select(sel.node());
     var data = node.data();
-    var fillcolor = (((data[0] || [])[0] || {}).trace || {}).fillcolor;
-    if(fillcolor) {
-        sel.call(Color.fill, fillcolor);
-    }
+    var trace = ((data[0] || [])[0] || {}).trace || {};
+    setFillStyle(sel, trace, gd);
 };
 
-drawing.fillGroupStyle = function(s) {
+drawing.fillGroupStyle = function(s, gd) {
     s.style('stroke-width', 0)
     .each(function(d) {
         var shape = d3.select(this);
         // N.B. 'd' won't be a calcdata item when
         // fill !== 'none' on a segment-less and marker-less trace
         if(d[0].trace) {
-            shape.call(Color.fill, d[0].trace.fillcolor);
+            setFillStyle(shape, d[0].trace, gd);
         }
     });
 };
@@ -347,12 +365,7 @@ drawing.gradient = function(sel, gd, gradientID, type, colorscale, prop) {
     sel.style(prop, getFullUrl(fullID, gd))
         .style(prop + '-opacity', null);
 
-    var className2query = function(s) {
-        return '.' + s.attr('class').replace(/\s/g, '.');
-    };
-    var k = className2query(d3.select(sel.node().parentNode)) +
-        '>' + className2query(sel);
-    fullLayout._gradientUrlQueryParts[k] = 1;
+    sel.classed('gradient_filled', true);
 };
 
 /**
@@ -559,11 +572,6 @@ drawing.pattern = function(sel, calledBy, gd, patternID, shape, size, solidity,
         .style('fill-opacity', null);
 
     sel.classed('pattern_filled', true);
-    var className2query = function(s) {
-        return '.' + s.attr('class').replace(/\s/g, '.');
-    };
-    var k = className2query(d3.select(sel.node().parentNode)) + '>.pattern_filled';
-    fullLayout._patternUrlQueryParts[k] = 1;
 };
 
 /*
@@ -579,9 +587,7 @@ drawing.initGradients = function(gd) {
     var gradientsGroup = Lib.ensureSingle(fullLayout._defs, 'g', 'gradients');
     gradientsGroup.selectAll('linearGradient,radialGradient').remove();
 
-    // initialize stash of query parts filled in Drawing.gradient,
-    // used to fix URL strings during image exports
-    fullLayout._gradientUrlQueryParts = {};
+    d3.select(gd).selectAll('.gradient_filled').classed('gradient_filled', false);
 };
 
 drawing.initPatterns = function(gd) {
@@ -590,9 +596,7 @@ drawing.initPatterns = function(gd) {
     var patternsGroup = Lib.ensureSingle(fullLayout._defs, 'g', 'patterns');
     patternsGroup.selectAll('pattern').remove();
 
-    // initialize stash of query parts filled in Drawing.pattern,
-    // used to fix URL strings during image exports
-    fullLayout._patternUrlQueryParts = {};
+    d3.select(gd).selectAll('.pattern_filled').classed('pattern_filled', false);
 };
 
 drawing.getPatternAttr = function(mp, i, dflt) {

src/components/legend/style.js

@@ -111,12 +111,16 @@ module.exports = function style(s, gd, legend) {
         var colorscale = cOpts.colorscale;
         var reversescale = cOpts.reversescale;
 
-        var fillGradient = function(s) {
+        var fillStyle = function(s) {
             if(s.size()) {
-                var gradientID = 'legendfill-' + trace.uid;
-                Drawing.gradient(s, gd, gradientID,
-                    getGradientDirection(reversescale),
-                    colorscale, 'fill');
+                if(showFill) {
+                    Drawing.fillGroupStyle(s, gd);
+                } else {
+                    var gradientID = 'legendfill-' + trace.uid;
+                    Drawing.gradient(s, gd, gradientID,
+                        getGradientDirection(reversescale),
+                        colorscale, 'fill');
+                }
             }
         };
 
@@ -145,7 +149,7 @@ module.exports = function style(s, gd, legend) {
         fill.enter().append('path').classed('js-fill', true);
         fill.exit().remove();
         fill.attr('d', pathStart + 'h' + itemWidth + 'v6h-' + itemWidth + 'z')
-            .call(showFill ? Drawing.fillGroupStyle : fillGradient);
+            .call(fillStyle);
 
         if(showLine || showGradientLine) {
             var lw = boundLineWidth(undefined, trace.line, MAX_LINE_WIDTH, CST_LINE_WIDTH);

src/snapshot/tosvg.js

@@ -33,7 +33,7 @@ module.exports = function toSVG(gd, format, scale) {
     var toppaper = fullLayout._toppaper;
     var width = fullLayout.width;
     var height = fullLayout.height;
-    var i, k;
+    var i;
 
     // make background color a rect in the svg, then revert after scraping
     // all other alterations have been dealt with by properly preparing the svg
@@ -106,32 +106,21 @@ module.exports = function toSVG(gd, format, scale) {
             }
         });
 
-    var queryParts = [];
-    if(fullLayout._gradientUrlQueryParts) {
-        for(k in fullLayout._gradientUrlQueryParts) queryParts.push(k);
-    }
-
-    if(fullLayout._patternUrlQueryParts) {
-        for(k in fullLayout._patternUrlQueryParts) queryParts.push(k);
-    }
+    svg.selectAll('.gradient_filled,.pattern_filled').each(function() {
+        var pt = d3.select(this);
 
-    if(queryParts.length) {
-        svg.selectAll(queryParts.join(',')).each(function() {
-            var pt = d3.select(this);
-
-            // similar to font family styles above,
-            // we must remove " after the SVG DOM has been serialized
-            var fill = this.style.fill;
-            if(fill && fill.indexOf('url(') !== -1) {
-                pt.style('fill', fill.replace(DOUBLEQUOTE_REGEX, DUMMY_SUB));
-            }
+        // similar to font family styles above,
+        // we must remove " after the SVG DOM has been serialized
+        var fill = this.style.fill;
+        if(fill && fill.indexOf('url(') !== -1) {
+            pt.style('fill', fill.replace(DOUBLEQUOTE_REGEX, DUMMY_SUB));
+        }
 
-            var stroke = this.style.stroke;
-            if(stroke && stroke.indexOf('url(') !== -1) {
-                pt.style('stroke', stroke.replace(DOUBLEQUOTE_REGEX, DUMMY_SUB));
-            }
-        });
-    }
+        var stroke = this.style.stroke;
+        if(stroke && stroke.indexOf('url(') !== -1) {
+            pt.style('stroke', stroke.replace(DOUBLEQUOTE_REGEX, DUMMY_SUB));
+        }
+    });
 
     if(format === 'pdf' || format === 'eps') {
         // these formats make the extra line MathJax adds around symbols look super thick in some cases

src/traces/scatter/attributes.js

@@ -6,6 +6,7 @@ var hovertemplateAttrs = require('../../plots/template_attributes').hovertemplat
 var colorScaleAttrs = require('../../components/colorscale/attributes');
 var fontAttrs = require('../../plots/font_attributes');
 var dash = require('../../components/drawing/attributes').dash;
+var pattern = require('../../components/drawing/attributes').pattern;
 
 var Drawing = require('../../components/drawing');
 var constants = require('./constants');
@@ -363,6 +364,7 @@ module.exports = {
             'marker color, or marker line color, whichever is available.'
         ].join(' ')
     },
+    fillpattern: pattern,
     marker: extendFlat({
         symbol: {
             valType: 'enumerated',

src/traces/scatter/defaults.js

@@ -14,6 +14,7 @@ var handleLineDefaults = require('./line_defaults');
 var handleLineShapeDefaults = require('./line_shape_defaults');
 var handleTextDefaults = require('./text_defaults');
 var handleFillColorDefaults = require('./fillcolor_defaults');
+var coercePattern = require('../../lib').coercePattern;
 
 module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout) {
     function coerce(attr, dflt) {
@@ -67,6 +68,7 @@ module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout
     if(traceOut.fill !== 'none') {
         handleFillColorDefaults(traceIn, traceOut, defaultColor, coerce);
         if(!subTypes.hasLines(traceOut)) handleLineShapeDefaults(traceIn, traceOut, coerce);
+        coercePattern(coerce, 'fillpattern', traceOut.fillcolor, false);
     }
 
     var lineColor = (traceOut.line || {}).color;

src/traces/scatter/plot.js

@@ -304,11 +304,11 @@ function plotOne(gd, idx, plotinfo, cdscatter, cdscatterAll, element, transition
                     // the points on the axes are the first two points. Otherwise
                     // animations get a little crazy if the number of points changes.
                     transition(ownFillEl3).attr('d', 'M' + pt1 + 'L' + pt0 + 'L' + fullpath.substr(1))
-                        .call(Drawing.singleFillStyle);
+                        .call(Drawing.singleFillStyle, gd);
                 } else {
                     // fill to self: just join the path to itself
                     transition(ownFillEl3).attr('d', fullpath + 'Z')
-                        .call(Drawing.singleFillStyle);
+                        .call(Drawing.singleFillStyle, gd);
                 }
             }
         } else if(tonext) {
@@ -320,15 +320,15 @@ function plotOne(gd, idx, plotinfo, cdscatter, cdscatterAll, element, transition
                     // This makes strange results if one path is *not* entirely
                     // inside the other, but then that is a strange usage.
                     transition(tonext).attr('d', fullpath + 'Z' + prevRevpath + 'Z')
-                        .call(Drawing.singleFillStyle);
+                        .call(Drawing.singleFillStyle, gd);
                 } else {
                     // tonextx/y: for now just connect endpoints with lines. This is
                     // the correct behavior if the endpoints are at the same value of
                     // y/x, but if they *aren't*, we should ideally do more complicated
                     // things depending on whether the new endpoint projects onto the
                     // existing curve or off the end of it
                     transition(tonext).attr('d', fullpath + 'L' + prevRevpath.substr(1) + 'Z')
-                        .call(Drawing.singleFillStyle);
+                        .call(Drawing.singleFillStyle, gd);
                 }
                 trace._polygons = trace._polygons.concat(prevPolygons);
             } else {

src/traces/scatter/style.js

@@ -27,7 +27,7 @@ function style(gd) {
         .call(Drawing.lineGroupStyle);
 
     s.selectAll('g.trace path.js-fill')
-        .call(Drawing.fillGroupStyle);
+        .call(Drawing.fillGroupStyle, gd);
 
     Registry.getComponentMethod('errorbars', 'style')(s);
 }

test/image/mocks/z-scatter_fill_pattern.json

@@ -0,0 +1,69 @@
+{
+    "data": [
+        {
+            "x": [1, 2, 3, 4, 5],
+            "y": [0.1, 0.3, 0.2, 0.8, 0.7],
+            "stackgroup": "one",
+            "fillpattern": {
+                "fillmode": "overlay",
+                "shape": "/"
+            }
+        },
+        {
+            "x": [1, 2, 3, 4, 5],
+            "y": [0.3, 0.2, 0.1, 0.1, 0.2],
+            "stackgroup": "one",
+            "fillpattern": {
+                "fillmode": "overlay",
+                "shape": "\\"
+            }
+        },
+        {
+            "x": [1, 2, 3, 4, 5],
+            "y": [0.8, 0.8, 0.6, 0.7, 0.4],
+            "stackgroup": "one",
+            "fillpattern": {
+                "fillmode": "overlay",
+                "shape": "."
+            }
+        },
+
+        {
+            "xaxis": "x2",
+            "yaxis": "y2",
+            "x": [1, 2, 3, 4, 5, 6],
+            "y": [0.1, 0.3, 0.4, 1.1, 0.8, 0.3],
+            "fill": "tozeroy",
+            "fillpattern": {
+                "fillmode": "replace",
+                "solidity": 0.4,
+                "size": 12,
+                "shape": "-"
+            }
+        },
+        {
+            "xaxis": "x2",
+            "yaxis": "y2",
+            "x": [1, 2, 3, 4, 5, 6],
+            "y": [0.8, 0.7, 0.1, 0.6, 0.7, 0.8],
+            "fill": "tonexty",
+            "fillpattern": {
+                "fillmode": "replace",
+                "solidity": 0.4,
+                "size": 12,
+                "shape": "|"
+            }
+        }
+    ],
+    "layout": {
+        "title": {"text": "Pattern fill for scatter"},
+        "width": 800,
+        "height": 400,
+
+        "grid": {
+            "rows": 1,
+            "columns": 2,
+            "pattern": "independent"
+        }
+    }
+}