konva
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<p align="center"> <img src="https://raw.githubusercontent.com/konvajs/konvajs.github.io/master/apple-touch-icon-180x180.png" alt="Konva logo" height="180" /> </p>
15 lines (14 loc) • 685 B
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var Factory_1 = require("../Factory");
var Node_1 = require("../Node");
var Validators_1 = require("../Validators");
exports.Noise = function (imageData) {
var amount = this.noise() * 255, data = imageData.data, nPixels = data.length, half = amount / 2, i;
for (i = 0; i < nPixels; i += 4) {
data[i + 0] += half - 2 * half * Math.random();
data[i + 1] += half - 2 * half * Math.random();
data[i + 2] += half - 2 * half * Math.random();
}
};
Factory_1.Factory.addGetterSetter(Node_1.Node, 'noise', 0.2, Validators_1.getNumberValidator(), Factory_1.Factory.afterSetFilter);