Rename “collaboration chart” to “chord chart”

With the recent refactoring, the level of granularity in chart type
names became inconsistent. “Chord chart” is a more general term for the
kind of chart that we use to visualize collaboration.

docs/README.md

@@ -28,13 +28,13 @@ Charts generally have the following structure:
 ```
 
 - `<h3>`: the title of the chart (required)
-- `<canvas>`: used to configure regular charts; change the tag to `<table>` for tables and `<svg>` for collaboration charts
+- `<canvas>`: used to configure regular charts; change the tag to `<table>` for tables and `<svg>` for chord charts
   - `data-url`: the URL to the `.tsv` file that shall be rendered by the chart (generated by the [updater](../updater/README.md))
   - `data-type`: the chart type, supported types are:
     - `history`: time series charts for tracking metrics over time
     - `list`: horizontal bar charts for general numeric data
     - `table`: tables directly rendered from the TSV source
-    - `collaboration`: chord diagrams used to visualize connections between entities
+    - `chord`: chord diagrams used to visualize connections between entities
   - `data-config`: chart-type-specific configuration options (see [option list below](#configuration-options))
 - `<div class="info-box">`: zero or more info boxes with descriptive texts
 

docs/assets/js/charts.js

@@ -723,7 +723,7 @@ function visualizeSingleOrg(orgs, matrix, orgID)
     drawCoord(orgs, matrix);
 }
 
-function createCollaborationChart(canvas)
+function createChordChart(canvas)
 {
     const url = $(canvas).data('url');
     const quota = 50;
@@ -831,8 +831,8 @@ $(window).bind('load', function()
                             return createHistoryChart(canvas);
                         case 'list':
                             return createList(canvas);
-                        case 'collaboration':
-                            return createCollaborationChart(canvas);
+                        case 'chord':
+                            return createChordChart(canvas);
                     }
                 });
 

docs/index.html

@@ -10,7 +10,7 @@ <h3>Collaboration Across Organizations</h3>
 		width="1000"
 		height="1000"
 		data-url="{{ site.dataURL }}/org-collaboration.tsv"
-		data-type="collaboration"
+		data-type="chord"
 	></svg>
 	<div class="info-box">
 		<p>

docs/spec/charts.js

@@ -1,12 +1,12 @@
-/* global createCollaborationChart, createHistoryChart, createList, createTable, createSpinner */
+/* global createChordChart, createHistoryChart, createList, createTable, createSpinner */
 
 describe('global charts.js', function()
 {
-    describe('createCollaborationChart function', function()
+    describe('createChordChart function', function()
     {
         it('should exist', function()
         {
-            expect(createCollaborationChart).toBeDefined();
+            expect(createChordChart).toBeDefined();
         });
     });
     describe('createHistoryChart function', function()