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
lisinopril 20 mg canadian
buy fildena without prescription – purchase cefuroxime sale oral viagra 150mg
buy sildenafil pills – buy trazodone 100mg online sildenafil medication
fildena 100mg brand – purchase trazodone for sale order sildenafil 100mg
buy flagyl 400mg generic – bactrim 960mg brand purchase cephalexin generic
Pretty nice post. I just stumbled upon your weblog and wished
to say that I have really enjoyed browsing your blog posts.
In any case I will be subscribing to your feed and I hope you write again soon!
buy metronidazole 400mg online – purchase cephalexin online cheap brand cephalexin 500mg
wining slots
play free online slots machine 999999999999
play with my pussy
metronidazole medication – buy flagyl 200mg for sale cephalexin 500mg cost
old vegas slots games
baba casino
slots lotty manna
buy propecia 1mg without prescription – buy ampicillin 500mg generic cipro 1000mg cheap
buy finasteride sale – oral finasteride 5mg ciprofloxacin 500mg tablet
https://weedseeds.garden/northern-lights-seeds/
60292283da marsabb
https://weedseeds.garden/lowryder-seeds/
60292283da shaynati
https://weedseeds.garden/og-kush-seeds/
60292283da tarnbry
https://weedseeds.garden/cbd-oil-for-ptsd/
60292283da nanroz
hey thanks for the info. appreciate the good work
buy generic finasteride 1mg – buy fluconazole online buy ciprofloxacin 1000mg for sale
What made you first develop an interest in this topic?
order ondansetron 8mg generic – ondansetron 4mg pill buy valacyclovir online
zofran 4mg pills – simvastatin price valacyclovir pills
Why does all this matter? Because like most things sold at IKEA, their cabinets are all very modular. There aren’t really any “custom” options if you need or want differently sized cabinets. You’re at the mercy of the sizes IKEA produces in bulk. Yes, you can sort of customize the interiors but as for the exterior dimensions, there’s a finite number of options. Angled cuts are possible, but doing that takes more work. This isn’t necessarily a bad thing, but it does mean that IKEA kitchens work really well in some spaces and not so well in others. More on that shortly. Adding ground fault circuit interrupter (GFCI) outlets to a kitchen reduces the likelihood of electrical shocks in a place where water and electricity are often side by side. Many older kitchens are not up to current codes, so updating and acquiring the necessary permits to modernize the safety of the kitchen will both increase the safety of your home and increase the home’s value. A kitchen remodel also offers an opportunity to reconfigure the storage to be more efficient, reducing the number of sharp items on the counter and providing good lighting for tasks involving knives and hot pans. http://cruzzqft753208.suomiblog.com/bathtub-replacement-price-26654219 High-end materials like exotic woods and stone are natural resources that come at a cost. For example, slab-stone countertops can cost between $25 and $100 per square foot. Many homeowners who seek special materials do so because they like the look and durability of these materials. To build an extra bedroom in your attic, Houselogic.com estimates a cost of around $75,000. While the price is steep, the addition of an extra bedroom can help your house fetch a higher price when you sell. The data Houselogic.com used showed you can recoup about half of your renovation costs when you add a bedroom in the attic. “The number one kitchen remodel request involves removing a wall to create an вЂopen concept’ layout,” says Tschudi. “If that wall is what’s called a load-bearing wall, removing it will be expensive and reduce the overall stability of the house. On the other hand, if the wall is not structural, the cost to remove it is very reasonable. If you are going to remove a wall, structural or not, be sure to engage with a licensed structural engineer.”
We are a group of volunteers and starting a new initiative in our community. Your blog provided us with valuable information to work on|.You have done a marvellous job!
This article actually helped me with a report I was doing.
I love your blog. It looks every informative.
order zofran 8mg pills – valacyclovir uk buy valtrex 1000mg for sale
There is perceptibly a lot to identify about this. I consider you made some good points in features also.
A wholly agreeable point of view, I think primarily based on my own experience with this that your points are well made, and your analysis on target.
A good web site with interesting content, that’s what I need. Thank you for making this web site, and I will be visiting again. Do you do newsletters? I Can’t find it.
purchase tadalafil without prescription – buy mobic 15mg online cheap cheap tamsulosin 0.2mg