@maptalks/function-type - npm Package Compare versions

Comparing version 1.2.3 to 1.3.0

index.js

@@ -0,1 +1,8 @@
+import { ColorIn } from 'colorin';
+var isMapSupported = typeof Map === 'function';
+var colorInCache;
+if (isMapSupported) {
+    colorInCache = new Map();
+}
+
 /*eslint-disable no-var, prefer-const*/
@@ -25,2 +32,4 @@ function createFunction(parameters, defaultType) {
             innerFun = evaluateIdentityFunction;
+        } else if (type === 'color-interpolate') {
+            innerFun = evaluateColorInterpolateFunction;
         } else {
@@ -128,2 +137,27 @@ throw new Error('Unknown function type "' + type + '"');
 }
+const COLORIN_OPTIONS = {
+    width: 100,
+    height: 1
+};
+function evaluateColorInterpolateFunction(parameters, input) {
+    const stops = parameters.stops;
+    if (stops && stops.length > 1) {
+        let colorIn;
+        if (colorInCache) {
+            const key = JSON.stringify(stops);
+            if (!colorInCache.has(key)) {
+                const colorIn = new ColorIn(stops, COLORIN_OPTIONS);
+                colorInCache.set(key, colorIn);
+            }
+            colorIn = colorInCache.get(key);
+        } else {
+            colorIn = new ColorIn(stops, COLORIN_OPTIONS);
+        }
+        const [r, g, b, a] = colorIn.getColor(input);
+        return [r / 255, g / 255, b / 255, a / 255];
+    } else if (stops && stops.length === 1) {
+        return stops[0][1];
+    }
+    return null;
+}
 
@@ -149,3 +183,3 @@ function evaluateIdentityFunction(parameters, input) {
 function interpolateNumber(input, base, inputLower, inputUpper, outputLower, outputUpper) {
-    var difference =  inputUpper - inputLower;
+    var difference = inputUpper - inputLower;
     var progress = input - inputLower;
@@ -230,5 +264,3 @@
     }
-    var result = {
-            '__fn_types_loaded' : true
-        },
+    var result = { '__fn_types_loaded': true },
         props = [],
@@ -305,3 +337,3 @@ p;
             }
-        }    
+        }
     }
@@ -308,0 +340,0 @@ const fn = createFunction(parameters, defaultType);

package.json

 {
   "name": "@maptalks/function-type",
-  "version": "1.2.3",
+  "version": "1.3.0",
   "main": "./index.js",
   "module": "./index.js",
   "description": "function type support for maptalks",
-  "dependencies": {},
+  "dependencies": {
+    "colorin": "^0.4.0"
+  },
   "devDependencies": {
+    "@napi-rs/canvas": "^0.1.30",
     "eslint": "^5.0.1",
@@ -10,0 +13,0 @@ "eslint-config-maptalks": "^0.2.1",

No alert changes

Improved metrics

Total package byte prevSize

15065

8.33%

Lines of code

309

11.15%

Worsened metrics

Dependency count

1

Infinity%

Dev dependency count

7

16.67%

Dependency changes

• + Added

  colorin@^0.4.0

• + Added

  colorin@0.4.0
  (transitive)