Fix centroid calculation. Bump turf to v6.5

draftlogs/7115_fix.md

@@ -0,0 +1,2 @@
+ - Fix centroid calculation in turf [[#7115](https://github.com/plotly/plotly.js/pull/7115)], with thanks to @birkskyum for the contribution!
+

package.json

@@ -71,9 +71,9 @@
     "@plotly/d3-sankey": "0.7.2",
     "@plotly/d3-sankey-circular": "0.33.1",
     "@plotly/mapbox-gl": "1.13.4",
-    "@turf/area": "^6.4.0",
-    "@turf/bbox": "^6.4.0",
-    "@turf/centroid": "^6.0.2",
+    "@turf/area": "^6.5.0",
+    "@turf/bbox": "^6.5.0",
+    "@turf/centroid": "^6.5.0",
     "base64-arraybuffer": "^1.0.2",
     "canvas-fit": "^1.5.0",
     "color-alpha": "1.0.4",

src/lib/geo_location_utils.js

@@ -226,7 +226,11 @@ function extractTraceFeature(calcTrace) {
                 };
 
                 // Compute centroid, add it to the properties
-                fOut.properties.ct = findCentroid(fOut);
+                if (fOut.geometry.coordinates.length > 0) {
+                    fOut.properties.ct = findCentroid(fOut);
+                } else {
+                    fOut.properties.ct = [NaN, NaN];
+                }
 
                 // Mutate in in/out features into calcdata
                 cdi.fIn = fIn;

test/jasmine/tests/choropleth_test.js

@@ -353,7 +353,7 @@ describe('Test choropleth hover:', function() {
             fig.data[0].hovertemplate = '%{properties.name}<extra>%{ct[0]:.1f} | %{ct[1]:.1f}</extra>';
             fig.layout.geo.projection = {scale: 20};
 
-            run(hasCssTransform, [300, 200], fig, ['New York', '-75.1 | 42.6'])
+            run(hasCssTransform, [300, 200], fig, ['New York', '-75.2 | 42.6'])
             .then(done, done.fail);
         });
     });

test/jasmine/tests/choroplethmap_test.js

@@ -489,7 +489,7 @@ describe('Test choroplethmap convert:', function() {
         var opts = convertModule.convert(calcTrace);
 
         expect(opts.geojson.features[0].geometry.coordinates).toBe(coordsIn);
-        expect(calcTrace[0].ct).toEqual([100.4, 0.4]);
+        expect(calcTrace[0].ct).toEqual([100.5, 0.5]);
     });
 
     it('should find correct centroid (multi-polygon case)', function() {
@@ -498,7 +498,7 @@ describe('Test choroplethmap convert:', function() {
         var coordsIn = [
             [
                 // this one has the bigger area
-                [[30, 20], [45, 40], [10, 40], [30, 20]]
+                [[30, 20], [47, 40], [10, 33], [30, 20]]
             ],
             [
                 [[15, 5], [40, 10], [10, 20], [5, 10], [15, 5]]
@@ -511,7 +511,7 @@ describe('Test choroplethmap convert:', function() {
         var opts = convertModule.convert(calcTrace);
 
         expect(opts.geojson.features[0].geometry.coordinates).toBe(coordsIn);
-        expect(calcTrace[0].ct).toEqual([28.75, 30]);
+        expect(calcTrace[0].ct).toEqual([29, 31]);
     });
 });
 
@@ -639,7 +639,7 @@ describe('Test choroplethmap hover:', function() {
             return fig;
         },
         nums: '### 100',
-        name: '-86.7 | 32.0 ###',
+        name: '-86.7 | 31.9 ###',
         evtPts: [{location: 100, z: 10, pointNumber: 0, curveNumber: 0}]
     }];
 

test/jasmine/tests/choroplethmapbox_test.js

@@ -490,7 +490,7 @@ describe('Test choroplethmapbox convert:', function() {
         var opts = convertModule.convert(calcTrace);
 
         expect(opts.geojson.features[0].geometry.coordinates).toBe(coordsIn);
-        expect(calcTrace[0].ct).toEqual([100.4, 0.4]);
+        expect(calcTrace[0].ct).toEqual([100.5, 0.5]);
     });
 
     it('should find correct centroid (multi-polygon case)', function() {
@@ -499,7 +499,7 @@ describe('Test choroplethmapbox convert:', function() {
         var coordsIn = [
             [
                 // this one has the bigger area
-                [[30, 20], [45, 40], [10, 40], [30, 20]]
+                [[30, 20], [47, 40], [10, 33], [30, 20]]
             ],
             [
                 [[15, 5], [40, 10], [10, 20], [5, 10], [15, 5]]
@@ -512,7 +512,7 @@ describe('Test choroplethmapbox convert:', function() {
         var opts = convertModule.convert(calcTrace);
 
         expect(opts.geojson.features[0].geometry.coordinates).toBe(coordsIn);
-        expect(calcTrace[0].ct).toEqual([28.75, 30]);
+        expect(calcTrace[0].ct).toEqual([29, 31]);
     });
 });
 
@@ -640,7 +640,7 @@ describe('Test choroplethmapbox hover:', function() {
             return fig;
         },
         nums: '### 100',
-        name: '-86.7 | 32.0 ###',
+        name: '-86.7 | 31.9 ###',
         evtPts: [{location: 100, z: 10, pointNumber: 0, curveNumber: 0}]
     }];