warm to cool (#454)

client/src/components/continuousLegend/index.js

@@ -2,7 +2,7 @@
 import React from "react";
 import { connect } from "react-redux";
 import * as d3 from "d3";
-import { interpolateViridis, interpolateWarm } from "d3-scale-chromatic";
+import { interpolateViridis, interpolateCool } from "d3-scale-chromatic";
 
 // create continuous color legend
 // http://bl.ocks.org/syntagmatic/e8ccca52559796be775553b467593a9f
@@ -126,7 +126,7 @@ class ContinuousLegend extends React.Component {
       if (colorScale.range()[0][0] !== "#") {
         continuous(
           "#continuous_legend",
-          d3.scaleSequential(interpolateWarm).domain(colorScale.domain()),
+          d3.scaleSequential(interpolateCool).domain(colorScale.domain()),
           colorAccessor
         );
       }

client/src/middleware/updateCellColors.js

@@ -6,7 +6,7 @@ import {
   interpolateSpectral,
   interpolateRainbow,
   interpolateBlues,
-  interpolateWarm
+  interpolateCool
 } from "d3-scale-chromatic";
 import * as globals from "../globals";
 import parseRGB from "../util/parseRGB";
@@ -89,7 +89,7 @@ const updateCellColorsMiddleware = store => next => action => {
 
     for (let i = 0; i < obsAnnotations.length; i += 1) {
       const obs = obsAnnotations[i];
-      const c = interpolateWarm(colorScale(obs[action.colorAccessor]));
+      const c = interpolateCool(colorScale(obs[action.colorAccessor]));
       colorsByName[i] = c;
       colorsByRGB[i] = parseRGB(c);
     }
@@ -107,7 +107,7 @@ const updateCellColorsMiddleware = store => next => action => {
       ]); /* invert viridis... probably pass this scale through to others */
 
     for (let i = 0, len = expression.length; i < len; i += 1) {
-      const c = interpolateWarm(colorScale(expression[i]));
+      const c = interpolateCool(colorScale(expression[i]));
       colorsByName[i] = c;
       colorsByRGB[i] = parseRGB(c);
     }