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
20 Questions You Should Always Ask About Mesothelioma Asbestos Lawyers Before You Buy
Mesothelioma Asbestos Lawyers mesothelioma attorneys (Elbert)
Why No One Cares About Hinge Repair Plate Aluminium Hinged Doors
10 Mobile Apps That Are The Best For Asbestos Settlement Asbestos lawyer
I have been exploring for a bit for any high-quality articles or weblog posts
in this sort of house . Exploring in Yahoo I at last stumbled upon this website.
Reading this info So i am glad to convey that I’ve an incredibly just right uncanny feeling I discovered just what I needed.
I such a lot indisputably will make sure to do not
disregard this website and provides it a glance regularly.
15 Surprising Stats About SEO Agency In Uk international Seo agency
Five Killer Quora Answers To Best Brands For Refrigerators best Brands For refrigerators
Реально ли приобрести диплом стоматолога? Основные этапы
sildenafil 50 mg price: cheap viagra – viagra canada
The Top 5 Reasons People Win At The 50 50 American Fridge Freezer Industry freestanding
american fridge freezer (Renate)
10 Car Key Replacements Near Me Hacks All Experts Recommend Key replacements For cars (bookmarks4.men)
What’s The Current Job Market For LG Fridge Fridge Professionals Like?
lg fridge fridge
Seven Reasons To Explain Why Car Accident Compensation Claim Is Important car injury lawyer near Me
Responsible For The Tall Integrated Fridge Freezers Budget?
10 Ways To Waste Your Money integrated large fridge Freezer
15 Up-And-Coming Trends About Chesterfield Couch Leather grey velvet chesterfield sofa
Guide To Amazon Gas Patio Heater: The Intermediate Guide For Amazon Gas Patio Heater amazon Gas patio Heater
Disconnect from TechnologyMost of us are used to being on our phones,えろ 人形laptops or tablets all the time.
Five Things You Didn’t Know About SEO Services London Uk top Seo Agency London
10 Retro Frost Free Fridge Freezer Techniques All Experts Recommend retro fridge freezer 50/50 (Ignacio)
Why We Enjoy The Best Asbestos Mesothelioma Attorney (And You Should Also!) mesothelioma lawyer
10 Signs To Watch For To Know Before You Buy Mesothelioma Asbestos Claim Mesothelioma lawyers
Guide To Retro Fridge Freezer 50 50: The Intermediate Guide For Retro Fridge Freezer 50 50 Retro Fridge Freezer 50 50
You’ll Never Guess This Ecommerce SEO Agency’s Tricks Ecommerce seo agency
What’s The Current Job Market For Upvc Door Scratch Repair Professionals?
upvc door scratch repair – funsilo.date,
Why You’ll Need To Learn More About Assessment For Adhd
In Adults adhd assessment (forums.indexrise.com)
https://fastpillsformen.com/# sildenafil over the counter
The 10 Most Infuriating Fridge Larder Failures Of All Time Could
Have Been Prevented Refridgerator uk (Isaevclub.ru)
Профессиональная откачка канализации в Слуцке, быстро.
Специализированная откачка канализации в Слуцке, по выгодной цене.
Экстренная откачка канализации в Слуцке, с опытными специалистами.
Откачка канализации в Слуцке: качественно и надежно, со скидкой для постоянных клиентов.
Экстренная откачка канализации в Слуцке, по доступной цене.
Эффективная откачка канализации в Слуцке, с выездом в любую точку города.
Экстренная откачка канализации в Слуцке: оперативно и качественно, с гарантией качества работы.
Экстренная откачка канализации в Слуцке, с гарантией качества.
Эффективная откачка канализации в Слуцке, с использованием современного оборудования.
откачка туалетов Слуцк откачка туалетов Слуцк .
Seven Explanations On Why Train Accident Attorneys Is So Important best Lawyers for truck accidents
The 10 Scariest Things About American Fridge Freezer With Ice
Machine American Fridge Freezer With Ice Machine
The 10 Most Terrifying Things About Window Handles For Wooden Windows Window Handles For Wooden Windows