d3-interpolate - npm Package Compare versions

Comparing version 1.3.3 to 1.4.0

dist/d3-interpolate.js

@@ -1,2 +0,2 @@
-// https://d3js.org/d3-interpolate/ v1.3.3 Copyright 2019 Mike Bostock
+// https://d3js.org/d3-interpolate/ v1.4.0 Copyright 2019 Mike Bostock
 (function (global, factory) {
@@ -125,3 +125,22 @@ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('d3-color')) :
 
+function numberArray(a, b) {
+  if (!b) b = [];
+  var n = a ? Math.min(b.length, a.length) : 0,
+      c = b.slice(),
+      i;
+  return function(t) {
+    for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;
+    return c;
+  };
+}
+
+function isNumberArray(x) {
+  return ArrayBuffer.isView(x) && !(x instanceof DataView);
+}
+
 function array(a, b) {
+  return (isNumberArray(b) ? numberArray : genericArray)(a, b);
+}
+
+function genericArray(a, b) {
   var nb = b ? b.length : 0,
@@ -144,4 +163,4 @@ na = a ? Math.min(nb, a.length) : 0,
   var d = new Date;
-  return a = +a, b -= a, function(t) {
-    return d.setTime(a + b * t), d;
+  return a = +a, b = +b, function(t) {
+    return d.setTime(a * (1 - t) + b * t), d;
   };
@@ -151,4 +170,4 @@ }
 function number(a, b) {
-  return a = +a, b -= a, function(t) {
-    return a + b * t;
+  return a = +a, b = +b, function(t) {
+    return a * (1 - t) + b * t;
   };
@@ -249,3 +268,4 @@ }
       : b instanceof Date ? date
-      : Array.isArray(b) ? array
+      : isNumberArray(b) ? numberArray
+      : Array.isArray(b) ? genericArray
       : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object
@@ -271,4 +291,4 @@ : number)(a, b);
 function round(a, b) {
-  return a = +a, b -= a, function(t) {
-    return Math.round(a + b * t);
+  return a = +a, b = +b, function(t) {
+    return Math.round(a * (1 - t) + b * t);
   };
@@ -563,2 +583,3 @@ }
 exports.interpolateNumber = number;
+exports.interpolateNumberArray = numberArray;
 exports.interpolateObject = object;
@@ -565,0 +586,0 @@ exports.interpolateRgb = rgb;

dist/d3-interpolate.min.js

@@ -1,2 +0,2 @@
-// https://d3js.org/d3-interpolate/ v1.3.3 Copyright 2019 Mike Bostock
-!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports,require("d3-color")):"function"==typeof define&&define.amd?define(["exports","d3-color"],n):n((t=t||self).d3=t.d3||{},t.d3)}(this,function(t,n){"use strict";function r(t,n,r,e,o){var a=t*t,u=a*t;return((1-3*t+3*a-u)*n+(4-6*a+3*u)*r+(1+3*t+3*a-3*u)*e+u*o)/6}function e(t){var n=t.length-1;return function(e){var o=e<=0?e=0:e>=1?(e=1,n-1):Math.floor(e*n),a=t[o],u=t[o+1],i=o>0?t[o-1]:2*a-u,l=o<n-1?t[o+2]:2*u-a;return r((e-o/n)*n,i,a,u,l)}}function o(t){var n=t.length;return function(e){var o=Math.floor(((e%=1)<0?++e:e)*n),a=t[(o+n-1)%n],u=t[o%n],i=t[(o+1)%n],l=t[(o+2)%n];return r((e-o/n)*n,a,u,i,l)}}function a(t){return function(){return t}}function u(t,n){return function(r){return t+r*n}}function i(t,n){var r=n-t;return r?u(t,r>180||r<-180?r-360*Math.round(r/360):r):a(isNaN(t)?n:t)}function l(t){return 1==(t=+t)?c:function(n,r){return r-n?function(t,n,r){return 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+// https://d3js.org/d3-interpolate/ v1.4.0 Copyright 2019 Mike Bostock
+!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?n(exports,require("d3-color")):"function"==typeof define&&define.amd?define(["exports","d3-color"],n):n((t=t||self).d3=t.d3||{},t.d3)}(this,function(t,n){"use strict";function r(t,n,r,e,a){var o=t*t,u=o*t;return((1-3*t+3*o-u)*n+(4-6*o+3*u)*r+(1+3*t+3*o-3*u)*e+u*a)/6}function e(t){var n=t.length-1;return function(e){var a=e<=0?e=0:e>=1?(e=1,n-1):Math.floor(e*n),o=t[a],u=t[a+1],i=a>0?t[a-1]:2*o-u,l=a<n-1?t[a+2]:2*u-o;return r((e-a/n)*n,i,o,u,l)}}function a(t){var n=t.length;return function(e){var a=Math.floor(((e%=1)<0?++e:e)*n),o=t[(a+n-1)%n],u=t[a%n],i=t[(a+1)%n],l=t[(a+2)%n];return r((e-a/n)*n,o,u,i,l)}}function o(t){return function(){return t}}function u(t,n){return function(r){return t+r*n}}function i(t,n){var r=n-t;return r?u(t,r>180||r<-180?r-360*Math.round(r/360):r):o(isNaN(t)?n:t)}function l(t){return 1==(t=+t)?c:function(n,r){return r-n?function(t,n,r){return 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package.json

 {
   "name": "d3-interpolate",
-  "version": "1.3.3",
+  "version": "1.4.0",
   "description": "Interpolate numbers, colors, strings, arrays, objects, whatever!",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -57,5 +57,6 @@ # d3-interpolate
 5. If *b* is a string, use [interpolateString](#interpolateString).
-6. If *b* is an [array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray), use [interpolateArray](#interpolateArray).
-7. If *b* is coercible to a number, use [interpolateNumber](#interpolateNumber).
-8. Use [interpolateObject](#interpolateObject).
+6. If *b* is a [typed array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray) of numbers, use [interpolateNumberArray](#interpolateNumberArray).
+7. If *b* is a generic [array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray), use [interpolateArray](#interpolateArray).
+8. If *b* is coercible to a number, use [interpolateNumber](#interpolateNumber).
+9. Use [interpolateObject](#interpolateObject).
 
@@ -96,4 +97,6 @@ Based on the chosen interpolator, *a* is coerced to the suitable corresponding type.
 
-Returns an interpolator between the two arrays *a* and *b*. Internally, an array template is created that is the same length in *b*. For each element in *b*, if there exists a corresponding element in *a*, a generic interpolator is created for the two elements using [interpolate](#interpolate). If there is no such element, the static value from *b* is used in the template. Then, for the given parameter *t*, the template’s embedded interpolators are evaluated. The updated array template is then returned.
+Returns an interpolator between the two arrays *a* and *b*. If *b* is a typed array (e.g., Float64Array), [interpolateNumberArray](#interpolateNumberArray) is called instead.
 
+Internally, an array template is created that is the same length as *b*. For each element in *b*, if there exists a corresponding element in *a*, a generic interpolator is created for the two elements using [interpolate](#interpolate). If there is no such element, the static value from *b* is used in the template. Then, for the given parameter *t*, the template’s embedded interpolators are evaluated. The updated array template is then returned.
+
 For example, if *a* is the array `[0, 1]` and *b* is the array `[1, 10, 100]`, then the result of the interpolator for *t* = 0.5 is the array `[0.5, 5.5, 100]`.
@@ -103,2 +106,8 @@
 
+<a name="interpolateNumberArray" href="#interpolateNumberArray">#</a> d3.<b>interpolateNumberArray</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-interpolate/blob/master/src/numberArray.js), [Examples](https://observablehq.com/@d3/d3-interpolatenumberarray)
+
+Returns an interpolator between the two arrays of numbers *a* and *b*. Internally, an array template is created that is the same type and length as *b*. For each element in *b*, if there exists a corresponding element in *a*, the values are directly interpolated in the array template. If there is no such element, the static value from *b* is copied. The updated array template is then returned.
+
+Note: For performance reasons, **no defensive copy** is made of the template array and the arguments *a* and *b*; modifications of these arrays may affect subsequent evaluation of the interpolator.
+
 <a name="interpolateObject" href="#interpolateObject">#</a> d3.<b>interpolateObject</b>(<i>a</i>, <i>b</i>) · [Source](https://github.com/d3/d3-interpolate/blob/master/src/object.js), [Examples](https://observablehq.com/@d3/d3-interpolateobject)
@@ -105,0 +114,0 @@

src/array.js

 import value from "./value.js";
+import numberArray, {isNumberArray} from "./numberArray.js";
 
 export default function(a, b) {
+  return (isNumberArray(b) ? numberArray : genericArray)(a, b);
+}
+
+export function genericArray(a, b) {
   var nb = b ? b.length : 0,
@@ -5,0 +10,0 @@ na = a ? Math.min(nb, a.length) : 0,

src/date.js

 export default function(a, b) {
   var d = new Date;
-  return a = +a, b -= a, function(t) {
-    return d.setTime(a + b * t), d;
+  return a = +a, b = +b, function(t) {
+    return d.setTime(a * (1 - t) + b * t), d;
   };
 }

src/index.js

@@ -9,2 +9,3 @@ export {default as interpolate} from "./value.js";
 export {default as interpolateNumber} from "./number.js";
+export {default as interpolateNumberArray} from "./numberArray.js";
 export {default as interpolateObject} from "./object.js";
@@ -11,0 +12,0 @@ export {default as interpolateRound} from "./round.js";

src/number.js

 export default function(a, b) {
-  return a = +a, b -= a, function(t) {
-    return a + b * t;
+  return a = +a, b = +b, function(t) {
+    return a * (1 - t) + b * t;
   };
 }

src/round.js

 export default function(a, b) {
-  return a = +a, b -= a, function(t) {
-    return Math.round(a + b * t);
+  return a = +a, b = +b, function(t) {
+    return Math.round(a * (1 - t) + b * t);
   };
 }

src/value.js

 import {color} from "d3-color";
 import rgb from "./rgb.js";
-import array from "./array.js";
+import {genericArray} from "./array.js";
 import date from "./date.js";
@@ -9,2 +9,3 @@ import number from "./number.js";
 import constant from "./constant.js";
+import numberArray, {isNumberArray} from "./numberArray.js";
 
@@ -18,5 +19,6 @@ export default function(a, b) {
       : b instanceof Date ? date
-      : Array.isArray(b) ? array
+      : isNumberArray(b) ? numberArray
+      : Array.isArray(b) ? genericArray
       : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object
       : number)(a, b);
 }

No alert changes

Improved metrics

Total package byte prevSize

69594

increased by4.1%

Number of package files

31

increased by3.33%

Lines of code

1080

increased by3.75%

Number of lines in readme file

251

increased by3.72%

No dependency changes