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
You’ll Never Guess This Is Treadmill Incline Good’s Tricks is treadmill incline good
What’s Everyone Talking About Subcold Mini Fridge Today cheap fridges uk
How The 10 Worst Upvc Replacement Window Handles Errors Of All
Time Could Have Been Prevented Handles For upvc windows
Here’s An Interesting Fact Concerning Truck Accident Attorney Near Me Truck Accidents
20 Myths About Private Mental Health Assessment: Busted mental health disorder Assessment
(http://yerliakor.Com/)
What’s The Job Market For Dangerous Drugs Lawsuits Professionals?
Dangerous Drugs
The Guide To Semi Truck Lawyer In 2023 Semi truck accident Attorneys
Максимальные скидки с нашим промокодом. Максимальные скидки с нашим промокодом. .
With thanks, Great information.
A Retrospective: What People Discussed About Birth Injury Compensation 20 Years Ago
Birth injury Attorney
Your Worst Nightmare Concerning Double Glazed Window Repairs Be Realized
installation
The Indonesian Pharmacists Organization (Pafi) іs actually a quakified company devoted tоwards progressing
pharmacy technique ɑnd also health carde in Indonesia viɑ education andd
learning, educating, neighborhood welplness plan advocacy, ɑs
well ass efforts. Pafi mɑkes certain pharmacists
ɑre actually outfitted аlоng witth the most uⲣ to datе know-һow towɑrds
give һigh topp premium ɑs weell as risk-free pharmacy companies tоwards the general public.
Guide To Upvc Repairs Near Me: The Intermediate Guide In Upvc Repairs Near Me Upvc repairs near me
Nine Things That Your Parent Taught You About Honda Spare Key honda spare
key (Nelle)
9 . What Your Parents Taught You About Best Lightweight Folding Mobility Scooter Uk
best lightweight folding Mobility scooter uk
Are You Responsible For The Titration Budget? 12 Ways To Spend Your Money private adhd medication titration (mckee-craft-3.technetbloggers.de)
Way cool! Some extremely valid points! I appreciate you penning this article
and also the rest of the website is really good.
10 Things That Your Family Taught You About Veleco Mobility Scooter Uk
veleco mobility scooter uk
It’s The Dangerous Drugs Law Firm Case Study You’ll Never Forget
lawyers
Everything posted was actually very reasonable.
But, think on this, what if you typed a catchier title?
I am not suggesting your content is not good.,
but what if you added something to maybe get folk’s
attention? I mean 透過網頁讀取PSD後，依圖層輸出PNG檔案 – 馬老師 雲端研究室 is kinda plain. You should look at Yahoo’s
home page and note how they create article titles to get viewers to open the links.
You might try adding a video or a related pic or two to get people
excited about what you’ve got to say. Just my opinion, it might make your
blog a little bit more interesting.
my blog post – man up gummies
Avoid Making This Fatal Mistake With Your Small Wood Burning Stove 913875.xyz
10 Double Glazing Installers Near Me Techniques All Experts
Recommend doors repairs near me; https://Simonhwjwh.blogsidea.com/34889356/10-things-everyone-hates-about-sash-windows-repair,
20 Top Tweets Of All Time About Senseo Coffee Senseo Coffee makers
What’s The Reason Everyone Is Talking About Lader
Fridge This Moment fridge freezers uk
Online Store Uk Tools To Ease Your Daily Lifethe One
Online Store Uk Trick That Every Person Must Know online
store uk – http://010-5773-0560.1004114.co.kr –
10 Websites To Help You Learn To Be An Expert In Car Boot
Scooters Collapsible Knee Scooter
After exposure to asbestos, mesothelioma-related symptoms can develop decades later.
The most frequent type of mesothelioma is pleural mesothelioma.
Other types include peritoneal mesothelioma and mesothelioma testicularis.
15 Best Single Cup Coffee Maker Bloggers You Should Follow best single cup coffee maker
10 Signs To Watch For To Buy A Multi Fuel Stoves For Sale 349338
Hey there, You have done an incredible job. I will definitely digg it and personally suggest to my friends.
I’m confident they’ll be benefited from this site.