From b062ba1493f8ef27b8bb7314c50f4cae3e574373 Mon Sep 17 00:00:00 2001
From: Andrzej Skrodzki <askrodzki@palantir.com>
Date: Wed, 12 Nov 2014 12:11:04 -0800
Subject: [PATCH] Close #1320.

---
 plottable.d.ts                                |  1 +
 plottable.js                                  | 13 ++++++++++---
 src/components/plots/stackedAreaPlot.ts       | 16 ++++++++++++----
 test/components/plots/stackedAreaPlotTests.ts | 11 +++++++++++
 test/tests.js                                 |  9 +++++++++
 5 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/plottable.d.ts b/plottable.d.ts
index 192812254f..06a83dfbaf 100644
--- a/plottable.d.ts
+++ b/plottable.d.ts
@@ -3208,6 +3208,7 @@ declare module Plottable {
             _updateYDomainer(): void;
             _onDatasetUpdate(): void;
             _generateAttrToProjector(): AttributeToProjector;
+            _wholeDatumAttributes(): string[];
         }
     }
 }
diff --git a/plottable.js b/plottable.js
index 1d15249cbb..042a1f7279 100644
--- a/plottable.js
+++ b/plottable.js
@@ -7993,14 +7993,21 @@ var Plottable;
             StackedArea.prototype._generateAttrToProjector = function () {
                 var _this = this;
                 var attrToProjector = _super.prototype._generateAttrToProjector.call(this);
+                var wholeDatumAttributes = this._wholeDatumAttributes();
+                var isSingleDatumAttr = function (attr) { return wholeDatumAttributes.indexOf(attr) === -1; };
+                var singleDatumAttributes = d3.keys(attrToProjector).filter(isSingleDatumAttr);
+                singleDatumAttributes.forEach(function (attribute) {
+                    var projector = attrToProjector[attribute];
+                    attrToProjector[attribute] = function (data, i) { return data.length > 0 ? projector(data[0], i) : null; };
+                });
                 var yAccessor = this._projectors["y"].accessor;
                 attrToProjector["y"] = function (d) { return _this._yScale.scale(+yAccessor(d) + d["_PLOTTABLE_PROTECTED_FIELD_STACK_OFFSET"]); };
                 attrToProjector["y0"] = function (d) { return _this._yScale.scale(d["_PLOTTABLE_PROTECTED_FIELD_STACK_OFFSET"]); };
-                // Align fill with first index
-                var fillProjector = attrToProjector["fill"];
-                attrToProjector["fill"] = function (d, i) { return (d && d[0]) ? fillProjector(d[0], i) : null; };
                 return attrToProjector;
             };
+            StackedArea.prototype._wholeDatumAttributes = function () {
+                return ["x", "y", "defined"];
+            };
             return StackedArea;
         })(Plot.AbstractStacked);
         Plot.StackedArea = StackedArea;
diff --git a/src/components/plots/stackedAreaPlot.ts b/src/components/plots/stackedAreaPlot.ts
index 989659b6ec..52243ca3c8 100644
--- a/src/components/plots/stackedAreaPlot.ts
+++ b/src/components/plots/stackedAreaPlot.ts
@@ -73,16 +73,24 @@ export module Plot {
 
     public _generateAttrToProjector() {
       var attrToProjector = super._generateAttrToProjector();
+      var wholeDatumAttributes = this._wholeDatumAttributes();
+      var isSingleDatumAttr = (attr: string) => wholeDatumAttributes.indexOf(attr) === -1;
+      var singleDatumAttributes = d3.keys(attrToProjector).filter(isSingleDatumAttr);
+      singleDatumAttributes.forEach((attribute: string) => {
+        var projector = attrToProjector[attribute];
+        attrToProjector[attribute] = (data: any[], i: number) => data.length > 0 ? projector(data[0], i) : null;
+      });
+
       var yAccessor = this._projectors["y"].accessor;
       attrToProjector["y"] = (d: any) => this._yScale.scale(+yAccessor(d) + d["_PLOTTABLE_PROTECTED_FIELD_STACK_OFFSET"]);
       attrToProjector["y0"] = (d: any) => this._yScale.scale(d["_PLOTTABLE_PROTECTED_FIELD_STACK_OFFSET"]);
 
-      // Align fill with first index
-      var fillProjector = attrToProjector["fill"];
-      attrToProjector["fill"] = (d, i) => (d && d[0]) ? fillProjector(d[0], i) : null;
-
       return attrToProjector;
     }
+
+    public _wholeDatumAttributes() {
+      return ["x", "y", "defined"];
+    }
   }
 }
 }
diff --git a/test/components/plots/stackedAreaPlotTests.ts b/test/components/plots/stackedAreaPlotTests.ts
index 39c6c7f3b2..a609672629 100644
--- a/test/components/plots/stackedAreaPlotTests.ts
+++ b/test/components/plots/stackedAreaPlotTests.ts
@@ -348,5 +348,16 @@ describe("Plots", () => {
       svg.remove();
     });
 
+    it("project works correctly", () => {
+      renderer.project("check", "type");
+      var areas = renderer._renderArea.selectAll(".area");
+      var area0 = d3.select(areas[0][0]);
+      assert.strictEqual(area0.attr("check"), "a", "projector has been applied to first area");
+
+      var area1 = d3.select(areas[0][1]);
+      assert.strictEqual(area1.attr("check"), "b", "projector has been applied to second area");
+      svg.remove();
+    });
+
   });
 });
diff --git a/test/tests.js b/test/tests.js
index 2ba13d06fc..fffc1f049f 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -3506,6 +3506,15 @@ describe("Plots", function () {
             assert.strictEqual(4, domain[1], "highest area stacking is at upper limit of yScale domain");
             svg.remove();
         });
+        it("project works correctly", function () {
+            renderer.project("check", "type");
+            var areas = renderer._renderArea.selectAll(".area");
+            var area0 = d3.select(areas[0][0]);
+            assert.strictEqual(area0.attr("check"), "a", "projector has been applied to first area");
+            var area1 = d3.select(areas[0][1]);
+            assert.strictEqual(area1.attr("check"), "b", "projector has been applied to second area");
+            svg.remove();
+        });
     });
 });