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
kamagra generic purchase kamagra sale sildenafil 50mg pill
buy atorvastatin 40mg generic order tenormin for sale pregabalin 150mg canada
order lipitor generic order pregabalin online cheap order pregabalin for sale
Online poker
penis enlargement
online porn video
essay revision help online
compare and contrast essay help
college application essay help
help in writing essays
essay writer
best essay editing service
sildenafil 50mg price kamagra 50mg without prescription sildenafil online buy
On this site u can buy all known nft monkey for very good price!
Bazı naif kızlar, onlara ne kadar şişman bir şov gördüklerini
bilemezler ve daha sonra kendilerini en iyi kalitede HD Şişme bebek
Porno Videoları: Jimnastik, Akrobatik, Tıraşlı, 18’lik,
Oyuncak, Kılsız, Rus, Göt sikme, Anal, 3’lü grup üzerinde inilip aldatmak için çok fazla oynamayı
bırakıyorlar. Şişme bebek HD Seks Videoları 1733
Sikilesi kız.
Bu video toplamda 50187 kez izlendi. YORUMLA 11 Yorum.
Okadar güzel amın varki amına kurban olurum diyor erkek kızın güzel götüne bakıpda asılmamak mümkünmü diyen pezevenk sevgilisi liseli fahişeyi
sikmek isteyen abaza beylerle türk porno severleri
sikiştirmek iç,n en büyük yaraklı erkege vermek istiyor.
liseli porno, porno.
purchase tizanidine online tadalafil uk tadalafil 40mg us
Some truly nice stuff on this website , I like it.
cost pregabalin order generic pregabalin 75 mg pregabalin 75 mg for sale
order custom essays online
essays help
lord of the flies essay help
lyrica 150mg ca purchase lyrica online buy pregabalin 150mg generic
zanaflex for sale buy cialis 20mg without prescription real cialis fast shipping
buy zanaflex for sale zanaflex without prescription order cialis 5mg sale
law school essay writing service
cheap custom essay
buy essay writing online
This article actually helped me with a report I was doing.
Thanks for posting this. Looking for these resources 😀
Your idea is outstanding; the issue is something that not enough persons are speaking intelligently about. I’m very happy that I stumbled throughout this in my seek for one thing regarding this.
lyrica 150mg price lyrica 150mg ca pregabalin uk
pregabalin 75 mg sale order lyrica 75 mg online pregabalin 75 mg pill
order zetia 10mg online cheap oral zetia baclofen oral
need help writing an essay
buy custom essays
help writing essays for scholarships
american singles
flirt dating site
online dating no info
I do not know if it’s just me or if everybody else encountering problems with your blog.
It appears like some of the text in your content are running
off the screen. Can someone else please comment and let
me know if this is happening to them as well?
This could be a problem with my internet browser because I’ve
had this happen previously. Cheers
Also visit my web blog :: สาระน่ารู้
payday loan