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
A Time-Travelling Journey: What People Discussed About Asbestos Lawsuit 20 Years Ago asbestos attorneys
The Reasons You’re Not Successing At Upvc Door
Locking Mechanism replacing panel In upvc door
One Key Trick Everybody Should Know The One Sofa On Sale Trick Every Person Should Learn futon for sale (https://fewpal.com/post/824057_https-walsh-tucker-thoughtlanes-net-20-best-tweets-of-all-time-about-sofas-cheap.html)
Five Killer Quora Answers To Table Top Freezer Uk freezer
uk – Katharina –
Buy A Driving License With Code 95: The Ugly Facts About Buy A Driving License With Code 95 Kup prawo jazdy kategorii B bez egzaminu
7 Things About Peritoneal Mesothelioma Not Caused By Asbestos You’ll Kick Yourself
For Not Knowing mesothelioma attorney (Nannette)
4 Dirty Little Secrets About Non Asbestos Causes Of Mesothelioma And The Non Asbestos Causes Of Mesothelioma Industry mesothelioma Attorney
See What Gas Safety Engineer Milton Keynes Tricks The Celebs Are Making Use Of gas safety engineer
milton keynes (northwestu.edu)
50 50 Integrated Fridge Tools To Make Your Everyday
Lifethe Only 50 50 Integrated Fridge Trick
Every Individual Should Be Able To 50 50 integrated fridge
best canadian pharmacy to order from: Canadian Md Pharm – canada drugs online reviews
15 Gifts For The Asbestosis Asbestos Mesothelioma Attorney Lover In Your Life mesothelioma lawsuit
What’s The Current Job Market For Fridge And Freezer Professionals Like?
fridge and Freezer
I felt engaged and motivated throughout the entire piece,and I’ve learned a great deal from your insights.ラブドール
Their extensive selection includes dolls with diverse styles,and sizes,ラブドール えろ
The combination of exceptional quality,ラブドール エロand a seamless shopping experience makes JP-Dolls a top choice.
美人 セックスMany customers,appreciate the superior quality and excellent service provided by JP-Dolls.
natural movements,ラブドール エロenhancing the overall lifelike experience.
リアル ドールshowcasing the pinnacle of realism and quality in doll craftsmanship.The website offers a diverse range of customization options,
and I appreciate the depth of analysis you’ve brought to the table.I want to take a moment to acknowledge the tremendous effort you put into this article.ダッチワイフ
ラブドール えろThe site’s user-friendly interface made the customization experience easy and enjoyable.and a seamless shopping experience makes com the go-to choice for anyone seeking a high-quality,
Purchasing a doll from com has been an exercise in excellence,especially in realistic doll customization.ラブドール えろ
providing a nuanced view that added depth to the discussion.ラブドールThank you for sharing such balanced and practical content.
Many people rave about JP-Dolls,and now I understand why.ラブドール エロ
ラブドール 中古This purchase has been extremely satisfying,and I highly recommend Ultimate Love Dolls for anyone seeking a high-quality,
I highly recommend this site to anyone looking for a high-quality,realistic companion.ラブドール 中古
Cots 4 Tots Tools To Ease Your Everyday Lifethe
Only Cots 4 Tots Technique Every Person Needs To Be Able To
cots 4 Tots
What Freezers Experts Would Like You To Know fridge freezers (olderworkers.com.Au)
enabling me to create a doll that fits my exact needs.美人 セックスThe realism is extraordinary,
with lifelike skin texture and intricately crafted facial features.The customization process on com was user-friendly and enjoyable,ラブドール 中古
I am truly impressed by the quality and depth of research you conducted for this article.The breadth of information you provided was thorough and meticulously detailed,ラブドール