动态调整pixi阶段的大小，并调整窗口大小和窗口加载的内容

Question

我正试图在窗口调整大小时动态调整pixi阶段（画布和内容）的大小。并且它最初加载到浏览器窗口的大小而不改变比率。

我正在使用以下内容将初始大小设置为window.innerHeight＆amp; var w; var h; window.onload = function() { var w = window.innerWidth; var h = window.innerHeight; //this part resizes the canvas but keeps ratio the same renderer.view.style.width = w + "px"; renderer.view.style.height = h + "px" // init(); }; - 但它正在做一些奇怪的事情，它以较小的尺寸加载（但不是html中指定的画布的大小）然后它正在扩展以适应窗口。

renderer.view

这是我的onresize函数 - 它正在调整画布大小，但不是内容。我认为它正在更新stage/renderer.view，它会调整内容的大小，但它没有这样做 - 我如何调整window.onresize = function (event){ var w = window.innerWidth; var h = window.innerHeight; //this part resizes the canvas but keeps ratio the same renderer.view.style.width = w + "px"; renderer.view.style.height = h + "px"; //this part adjusts the ratio: renderer.resize(w,h); } // create an new instance of a pixi stage var stage = new PIXI.Stage(0xff00ff); var renderer = PIXI.autoDetectRenderer(window.innerWidth, window.innerHeight); // add the renderer view element to the DOM var mypixiStage = document.body.appendChild(renderer.view); 内容的内容？

{{1}}

Answer 1

您需要设置调整大小事件函数的大小和比例以供参考。然后，您需要一个调整窗口大小的调整大小功能，以便在调整大小时保持比率。我也手动运行调整大小功能以启动初始页面加载。

另请注意，我没有运行renderer.resize。我只是调整绘图区域的大小。

这里有一个小提琴供您查看：http://jsfiddle.net/2wjw043f/

这是小提琴代码：

var size = [1920, 1080];
var ratio = size[0] / size[1];
var stage = new PIXI.Stage(0x333333, true);
var renderer = PIXI.autoDetectRenderer(size[0], size[1], null);
document.body.appendChild(renderer.view);
var texture = new PIXI.RenderTexture();
r1 = new PIXI.Graphics();
r1.beginFill(0x00ffff);
r1.drawRect(0, 0, 100, 100);
r1.endFill();
texture.render(r1);
var block = new PIXI.Sprite(texture);
block.position.x = 100;
block.position.y = 100;
block.anchor.x = .5;
block.anchor.y = .5;
stage.addChild(block);
requestAnimFrame(animate);
resize();
function animate() {
    requestAnimFrame(animate);
    block.rotation += .01;
    renderer.render(stage);
}
function resize() {
    if (window.innerWidth / window.innerHeight >= ratio) {
        var w = window.innerHeight * ratio;
        var h = window.innerHeight;
    } else {
        var w = window.innerWidth;
        var h = window.innerWidth / ratio;
    }
    renderer.view.style.width = w + 'px';
    renderer.view.style.height = h + 'px';
}
window.onresize = resize;

Answer 2

我一直在使用Pixi.js几周，并解决了调整画布大小的问题。这个类创建一个sprite，它有一个方法“applyResize”来完成大部分工作。画布背景的大小将与构造函数中的父“domElement”相同。初始化后，您必须向精灵添加'resize'事件监听器。或者你可以做些别的事来改善它。

class PixiBackground {

    constructor(type = 'cover', domElement, imgUrl) {
        this.domElement = domElement;
        this.imgUrl = imgUrl;
        this.parent = new PIXI.Container();
        this.sprite = new PIXI.Sprite.fromImage(this.imgUrl);
        this.parent.addChild(this.sprite);
        this.type = type;
    }

    addTo(container) {
        container.addChild(this.parent);
        this.applyResize();
    }

    applyResize() {
        const domSize = {
            x: this.domElement.clientWidth,
            y: this.domElement.clientHeight
        };
        const imageSize = {
            x: this.sprite.texture.width,
            y: this.sprite.texture.height
        };
        const domElementRatio = domSize.x / domSize.y;
        const imageRatio = imageSize.x / imageSize.y;
        var scale = 1;
        var position = new PIXI.Point(0, 0);

        if (this.type == 'cover' ? domElementRatio > imageRatio : domElementRatio < imageRatio) {
            //photo is taller than background
            scale = domSize.x / imageSize.x;
            position.y = -(imageSize.y * scale - domSize.y) / 2;
            position.x = 0;
        } else {
            //photo is wider than background
            scale = domSize.y / imageSize.y;
            position.x = -(imageSize.x * scale - domSize.x) / 2;
            position.y = 0;
        }
        this.sprite.scale = new PIXI.Point(scale, scale);
        this.sprite.position = position;
        return this;
    }
}

const imgUrl = 'https://images.unsplash.com/photo-1528723624453-3e53a413b392?ixlib=rb-0.3.5&q=85&fm=jpg&crop=entropy&cs=srgb&ixid=eyJhcHBfaWQiOjE0NTg5fQ&s=b44ae61a30e1a05f5defbf48cb5956eb';
const canvasParentElement = document.getElementById('canvasParentElement');
const renderer = PIXI.autoDetectRenderer({
    width: canvasParentElement.clientWidth,
    height: canvasParentElement.clientHeight
});
canvasParentElement.appendChild(renderer.view);

const stage = new PIXI.Container();
const pixiTestObject = new PixiBackground('cover', canvasParentElement, imgUrl);

PIXI.loader.add(imgUrl).load(function() {
    pixiTestObject.addTo(stage)
    requestAnimationFrame(animate);

    function animate() {
        requestAnimationFrame(animate);
        renderer.render(stage);
    }
});

window.addEventListener('resize', debounce(() => onResizeWindow(), 250));
window.addEventListener('resize', debounce(() => pixiTestObject.applyResize(), 250));

// From underscrore.js
function debounce(func, wait, immediate) {
    let timeout;
    return function() {
        let args = arguments;
        let later = () => {
            timeout = null;
            if (!immediate) func.apply(this, args);
        };
        let callNow = immediate && !timeout;
        clearTimeout(timeout);
        timeout = setTimeout(later, wait);
        if (callNow) func.apply(this, args);
    }
}

function onResizeWindow() {
    const canvas = renderer.view;
    const w = canvasParentElement.clientWidth;
    const h = canvasParentElement.clientHeight;
    canvas.style.width = w + 'px';
    canvas.style.height = h + 'px';
    canvas.width = w;
    canvas.height = h;
    renderer.resize(w, h);
}

  #canvasParentElement {
    background: black;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
  }

<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/4.8.1/pixi.min.js"></script>
<div id="canvasParentElement"></div>

Answer 3

从PixiJS 5.0开始，您可以简单地使用应用程序的 resizeTo 属性：

let app = new PIXI.Application({ resizeTo: window });

文档：http://pixijs.download/release/docs/PIXI.Application.html#Application

Answer 4

adaptive-scale对于调整大小和缩放比例非常有用

Answer 5

app.renderer.resize(window.innerWidth, window.innerHeight);
window.onresize = function()
{
    app.renderer.resize(window.innerWidth, window.innerHeight);
}