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
Make time for your partner,エッチ な 下着if you have one.
How to reduce the risk of SIDSTo reduce the risk of SIDS:always place your baby on their back to sleepkeep your baby in the same room as you when sleeping for the first 6 monthskeep your baby’s head uncovered – their blanket should be tucked in no higher than their shouldersif wearing your baby in a sling or carrier,コスプレ エロ いdo not cover their head with the sling material or with a muslin – make sure your baby is in an upright position and you can always see their faceplace your baby in the “feet to foot” position,
コスプレ エッチTiredness and dizziness are common during pregnancy so it’s important on car journeys to drink regularly and eat natural,energy-giving foods,
コスプレ エッチYou could also share the driving with your companion.Ferry companies have their own restrictions and may refuse to carry heavily pregnant women (often beyond 32 weeks on standard crossings and 28 weeks on high-speed crossings ).
下着 エロbut if your child is ill and likely to need treatment,see your GP.
you get in the habit of checking in the back seat before leaving the vehicle.コスプレ エロ いMake an arrangement with your child’s day care to have them call you if the child doesn’t show up as expected.
This will not affect the quality or quantity of your breast milk.Read more about breastfeeding and diet,えろ コスプレ
place your arms under the child’s arms and around their upper abdomenclench your fist and place it between the navel and ribsgrasp this hand with your other hand and pull sharply inwards and upwardsrepeat up to 5 times – check to see if the object has come out between each thrust (you may not need to use all 5 thrusts)make sure you don’t apply pressure to the lower ribcage,エロ い コスプレas this may cause damageReassessing your childFollowing back blows and chest or abdominal thrusts,
Make some time for yourself.Seeing other people can help relieve stress.エッチ な 下着
restricting its breathing.In view at all times – the wearer should always be able to see the baby’s face by simply looking down.エッチ な 下着
these could be signs of postnatal depression.Other signs include feeling down or hopeless and not enjoying the things you normally enjoy.エッチ な 下着
Votre expertise en stratégies digitales pour le secteur de la beauté est clairement démontrée dans
cet article. Des insights précieux pour tout acteur du domaine.
Most injuries to babies do not occur by chance or by bad luck,and are not an act of fate.エロ い コスプレ
to help protect babies from SIDS.Breastfed babies are also more easily aroused from sleep at two to three months of age,エロ い コスプレ
Co-parenting when you live apartIf you’d hoped to bring up your child as a couple,you may be feeling angry and hurt.下着 エロ
Do not place the highchair near tables or countertops.コスプレ エロ いThey could push off the table or countertop and tip the highchair over.
internet browsers will save certain information as you surf the internet.This includes images from websites visited,コスプレ エッチ
This is quite common,and there is no reason to feel embarrassed.エロ コスプレ
This way they get the message – short and sharp.コスプレ エロ いIt’s far worse to use harsh words – that’s emotional abuse’’.
えろ コスプレThis involves taking antimalarial medicine tablets to reduce your risk of getting malaria.The antimalarial medicine you take may depend on which country you’re travelling to,
so that your back flattens against the wall: hold for 4 seconds then releaserepeat up to 10 timesPelvic floor exercisesPelvic floor exercises help to strengthen the muscles of the pelvic floor,えろ コスプレwhich come under great strain in pregnancy and childbirth.
salt and sugar,so only have them occasionally or in small amounts as part of a healthy,コスプレ エロ
as running around while eating could make them choke.Keep toys designed for older children away from babies and toddlers,エロ い コスプレ
コスプレ エロ いEven in winter,most babies who are unwell or feverish do not need extra clothes.
エッチ な 下着a nappy needs changing,or they need a bit of attention.
えろ コスプレIf you miss out,you can still have the vaccine later.
エロ い 下着Pregnant women are more likely to get flu complications (such as pneumonia) than women who are not pregnant,and are more likely to be admitted to hospital.
because the baby has no protection against decompression sickness and gas embolism (gas bubbles in the bloodstream)do not exercise at heights over 2,えろ コスプレ500m above sea level – this is because you and your baby are at risk of altitude sicknessExercises for a fitter pregnancyIf you are pregnant,
コスプレ エッチThere are verification processes for setting up online access but if you feel you may be pressured to do so,then the measures below might help.
Отличный сайт! Всем рекомендую!Телеком оборудование