@visactor/vchart/esm/series/word-cloud/animation.js

charts lib based @visactor/VGrammar

import { DEFAULT_ANIMATION_CONFIG } from "../../animation/config";

import { Factory } from "../../core/factory";

function computeWordDelay(duration, totalTime, wordCount) {
    return duration * wordCount < totalTime ? duration + (totalTime - wordCount * duration) / (wordCount - 1) : (totalTime - duration) / (wordCount - 1);
}

export const WordCloudScaleInAnimation = params => ({
    type: "scaleIn",
    duration: 200,
    delay: (datum, graphic) => {
        const animationConfig = params.animationConfig(), duration = (null == animationConfig ? void 0 : animationConfig.duration) || 200, totalTime = (null == animationConfig ? void 0 : animationConfig.totalTime) || DEFAULT_ANIMATION_CONFIG.appear.duration, count = graphic.context.graphicCount;
        return graphic.context.graphicIndex * computeWordDelay(duration, totalTime, count);
    }
});

export function wordcloudPresetAnimation(params, preset) {
    return !1 === preset ? {} : "fadeIn" === preset ? {
        type: "fadeIn"
    } : WordCloudScaleInAnimation(params);
}

export const registerWordCloudAnimation = () => {
    Factory.registerAnimation("wordCloud", ((params, preset) => ({
        appear: wordcloudPresetAnimation(params, preset),
        enter: {
            type: "fadeIn"
        },
        exit: {
            type: "fadeOut"
        },
        disappear: {
            type: "fadeOut"
        }
    })));
};
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