default tip for auto

Author: mbostock

src/marks/auto.js

@@ -133,7 +133,8 @@ export function autoSpec(data, options) {
     y: Y ?? undefined, // treat null y as undefined for implicit stack
     [colorMode]: C ?? colorColor,
     z: Z,
-    r: S ?? undefined // treat null size as undefined for default constant radius
+    r: S ?? undefined, // treat null size as undefined for default constant radius
+    tip: true
   };
   let transformImpl;
   let transformOptions = {[colorMode]: colorReduce ?? undefined, r: sizeReduce ?? undefined};

test/marks/auto-test.js

@@ -19,7 +19,8 @@ it("Plot.autoSpec makes a histogram from a quantitative dimension", () => {
       y: undefined,
       fill: undefined,
       z: undefined,
-      r: undefined
+      r: undefined,
+      tip: true
     },
     transformImpl: "binX",
     transformOptions: {fill: undefined, r: undefined, y: "count"},
@@ -45,7 +46,8 @@ it("Plot.autoSpec makes a bar chart from an ordinal dimension", () => {
       y: undefined,
       fill: "blue",
       z: undefined,
-      r: undefined
+      r: undefined,
+      tip: true
     },
     transformImpl: "groupX",
     transformOptions: {fill: undefined, r: undefined, y: "count"},
@@ -75,7 +77,8 @@ it("Plot.autoSpec makes a line from a monotonic dimension", () => {
       y: Object.assign([1, 1, 38], {label: "value"}),
       stroke: undefined,
       z: undefined,
-      r: undefined
+      r: undefined,
+      tip: true
     },
     transformImpl: undefined,
     transformOptions: {stroke: undefined, r: undefined},
@@ -105,7 +108,8 @@ it("Plot.autoSpec makes a dot plot from two quantitative dimensions", () => {
       y: Object.assign([0, 3, 2], {label: "y"}),
       stroke: undefined,
       z: undefined,
-      r: undefined
+      r: undefined,
+      tip: true
     },
     transformImpl: undefined,
     transformOptions: {stroke: undefined, r: undefined},
@@ -138,7 +142,8 @@ it("Plot.autoSpec makes a faceted heatmap", () => {
       y: {value: Object.assign([0, 3, 2, 1, 6, 2], {label: "y"})},
       fill: undefined,
       z: undefined,
-      r: undefined
+      r: undefined,
+      tip: true
     },
     transformImpl: "bin",
     transformOptions: {fill: "count", r: undefined},