透過網頁讀取PSD後，依圖層輸出PNG檔案
在前面介紹過網頁可以讀取PSD檔案並擷取到該檔案的資訊，接著我們會希望能透過網頁上傳PSD檔之後，依照圖層來輸出圖片，同樣是利用PSD.js來輔助進行，可以透過我們製作的範例頁面來進行輸出測試。
預設輸出效果
透過PSD.js可將PSD內的各圖層輸出成PNG圖檔，亦可轉成Base 64圖檔格式，惟輸出時每個圖檔的尺寸並不會根據整體PSD檔大小來配置。
<!DOCTYPE html>
<html>
<head>
<title>psd.js image example</title>
<style type="text/css">
body, html {
padding: 0;
margin: 0;
}
#dropzone {
width: 500px;
height: 100px;
border: 1px #ababab dashed;
margin: 50px auto;
}
#dropzone p {
text-align: center;
line-height: 100px;
margin: 0;
padding: 0;
}
#image {
text-align: center;
}
</style>
<script type="text/javascript" src="psd.min.js"></script>
</head>
<body>
<div id="dropzone">
<p>Drop PSD here</p>
</div>
<div id="image"></div>
<pre id="data"></pre>
<script type="text/javascript">
(function () {
const PSD = require('psd');
document.getElementById('dropzone').addEventListener('dragover', onDragOver, true);
document.getElementById('dropzone').addEventListener('drop', onDrop, true);
function onDragOver(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
function onDrop(e) {
e.stopPropagation();
e.preventDefault();
PSD.fromEvent(e).then(function (psd) {
for (var i = 0; i < psd.layers.length; i ++){
document.getElementById('image').appendChild(psd.layers[i].image.toPng());
}
});
}
}());
</script>
</body>
</html>
依照整體PSD配置進行輸出
我們希望讓每個圖片在輸出後能保時相同的尺寸，也就是依照PSD的畫布大小來輸出每一張圖檔，但在原生PSD.js中並不具備這樣的功能，於是我們透過下述的方式來達成：
- 擷取PSD資訊並將圖檔轉為Base 64格式
- 產生與PSD尺寸大小相同的HTML Canvas
- 將產生的Base 64圖檔，依照原始位置放入Canvas中
- 將Canvas轉成PNG圖檔
可以參考我們製作的範例頁面
<!DOCTYPE html>
<html>
<head>
<title>psd.js image example</title>
<style type="text/css">
body, html {
padding: 0;
margin: 0;
}
#dropzone {
width: 500px;
height: 100px;
border: 1px #ababab dashed;
margin: 50px auto;
}
#dropzone p {
text-align: center;
line-height: 100px;
margin: 0;
padding: 0;
}
#image {
text-align: center;
}
</style>
<script type="text/javascript" src="psd.min.js"></script>
</head>
<body>
<div id="dropzone">
<p>Drop PSD here</p>
</div>
<div id="image"></div>
<pre id="data"></pre>
<script type="text/javascript">
(function () {
const PSD = require('psd');
document.getElementById('dropzone').addEventListener('dragover', onDragOver, true);
document.getElementById('dropzone').addEventListener('drop', onDrop, true);
function onDragOver(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
function onDrop(e) {
e.stopPropagation();
e.preventDefault();
PSD.fromEvent(e).then(function (psd) {
const PSDWidth = psd.tree().width;
const PSDHeight = psd.tree().height;
for (var i = 0; i < psd.layers.length; i ++){
const img = new Image();
img.src = psd.layers[i].image.toBase64();
console.log(psd);
const layerWidth = psd.layers[i].width;
const layerHeight = psd.layers[i].height;
const layerLeft = psd.layers[i].left;
const layerTop = psd.layers[i].top;
const canvas = document.createElement("canvas");
canvas.setAttribute('class', "canvas");
canvas.width = PSDWidth;
canvas.height = PSDHeight;
console.log("canvas :", canvas);
img.onload = function(){
canvas.getContext("2d").drawImage(img, layerLeft, layerTop, layerWidth, layerHeight);
document.getElementById('image').appendChild(canvas);
}
}
});
}
}());
</script>
</body>
</html>
PSD檔案輸出限制
1. 無法輸出帶有效果的圖片
在PSD中我們可能會針對圖層套用一些效果，例如：陰影、光暈、筆畫…等等，但在輸出後的圖檔將不會帶有這些效果。
解決方法：透過點陣化圖層效果，即可輸出相對應的圖檔。
2. 無法輸出帶有遮色片效果的圖片
解決方法：將圖層轉為智慧型物件，即可輸出相對應的圖檔。
3. 無法依圖層混合模式輸出圖片
解決方法：無法解決
вызвать нарколога на дом https://motik13.0pk.me/viewtopic.php?id=1995 .
нарколог на дом круглосуточно http://www.chesskomi.borda.ru/?1-8-0-00003045-000-0-0-1730729839 .
нарколог на дом срочно нарколог на дом срочно .
нарколог на дом краснодар нарколог на дом краснодар .
электрокарнизы москва http://www.elektrokarniz495.ru .
where to get clomid pills: can i get clomid prices – get cheap clomid without dr prescription
выезд нарколога на дом http://www.pelsh.forum24.ru/?1-8-0-00000125-000-0-0-1730729877 .
Have you ever considered about adding a little bit more than just your articles?
I mean, what you say is fundamental and everything. However think about if you added some great pictures or videos to give your posts
more, “pop”! Your content is excellent but with images and videos, this blog could definitely be one of the most beneficial
in its field. Very good blog!
электрокарнизы цена электрокарнизы цена .
нарколог на дом краснодар https://cah.forum24.ru/?1-19-0-00000459-000-0-0-1730729862 .
Convey the object code in, or embodied in, a bodily product (including a bodily distribution medium), accompanied by a written supply,
valid for at the very least three years and valid for
as long as you supply spare parts or customer help for that product mannequin,
to give anybody who possesses the article code both (1) a copy of the Corresponding Source
for all the software within the product that is covered by this License, on a durable physical medium
customarily used for software interchange, for a worth no more than your reasonable
value of bodily performing this conveying of source, or (2) access to repeat the Corresponding Source from a
network server at no charge. Notwithstanding any other provision of this License,
for those who modify the program, your modified version must prominently offer all users interacting with
it remotely by means of a computer community (if your
model supports such interplay) a possibility to receive the Corresponding Source of your model by
providing access to the Corresponding Source from a network server at no charge, by way of some customary
or customary technique of facilitating copying of software.
The GNU Affero General Public License is a free, copyleft license for software program and other
sorts of works, specifically designed to make sure cooperation with the group
in the case of network server software.
вызов нарколога на дом круглосуточно https://www.flanrp.rolevaya.com/viewtopic.php?id=146 .
вызов нарколога на дом svstrazh.forum24.ru/?1-3-0-00000233-000-0-0-1730729693 .
электрический карниз для штор электрический карниз для штор .
10 No-Fuss Strategies To Figuring Out Your Rubber Threshold
Wheelchair Ramp wheelchair ramp for suv (Erwin)
cheap priligy: Priligy tablets – cheap priligy
BBgate MarketPlace 2024 Breaking Bad Gate Forum
BBgate MarketPlace
Best Apps to Make Money in Pakistan, For Extra Income, Unusual Ways to Make Money in Pakistan, To Improve Your Financial Situation, The most effective applications for earning money in Pakistan, Facts about earning money in Pakistan through mobile applications, for successful earnings, Promising applications for earning money in Pakistan, Convenient ways to make passive income in Pakistan, Simple ways to make money in Pakistan through mobile apps, for active participation in earnings, Updated platforms for making money in Pakistan, The most interesting apps for making money in Pakistan, which will lead to financial independence, Unique ways to make money in Pakistan through apps, Effective ways to make money in Pakistan through apps: a short guide, Earnings in Pakistan using mobile apps: reality or fiction?, to increase incomeearning app in pakistan [url=https://makemoneyonlinehappy.com/]earning app in pakistan[/url] .
нарколог на дом краснодар https://www.pelsh.forum24.ru/?1-8-0-00000125-000-0-0-1730729877 .
нарколог на дом цены https://motik13.0pk.me/viewtopic.php?id=1995 .
нарколог на дом анонимно http://www.bisound.com/forum/showthread.php?p=1217304#post1217304/ .