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
When it comes to your first time, many people wonder,ロボット セックス and sometimes worry about, being able to orgasm (coming or climaxing) and making their partner orgasm.
How To Recognize The Door Repairs Near Me Which Is Right For
You Upvc door repairs near Me
Wow, wonderful blog layout! How long have you been blogging for?
you made blogging look easy. The overall look of your site
is great, as well as the content!
Ten Things You Should Not Share On Twitter cerebral palsy Attorneys
Strategies For Winning Baccarat 프라그마틱 정품 [http://soluble-therapeutics.com/__media__/js/netsoltrademark.php?d=www.question-ksa.com/user/julyarm19]
Five Tools Everybody In The Double Glazing Suppliers Near Me
Industry Should Be Utilizing repair Double glazing window (vf4bq05ajlcqa.com)
15 Top Twitter Accounts To Discover Railroad Injuries
Attorneys Railroad Injuries Lawsuits
After exploring a few of the articles on your website, I honestly like
your technique of blogging. I saved as a favorite it to my bookmark webpage list and will be checking back soon. Take a look at my web site too and tell me how
you feel.
The 9 Things Your Parents Teach You About Upvc Window
Repair Near Me window Repair near me
This website was… how do you say it? Relevant!!
Finally I’ve found something which helped me.
Cheers!
What’s The Current Job Market For Double Glazed Repairs Near Me Professionals?
Double glazed repair
I know this if off topic but I’m looking into starting my own weblog and was curious what all is required to get setup?
I’m assuming having a blog like yours would cost a pretty penny?
I’m not very web savvy so I’m not 100% certain. Any suggestions or advice would be
greatly appreciated. Kudos
Double Glazing Door Repairs Near Me Tools To Ease Your Daily Life Double Glazing Door Repairs Near Me Trick Every Person Should Be Able To
repair
10 Things That Your Family Taught You About Upvc Windows Near Me upvc windows
Near me (Dev.roadsports.net)
Five Things You Didn’t Know About Veterans Disability Lawyers veterans
disability Lawsuit (https://72.caiwik.com/index/download2?diff=0&darken=1&utm_source=og&utm_campaign=2564&utm_content=%5BCID%5D&utm_clickid=vcc88ww8sosk84c0&aurl=https://vimeo.com/709648006&PushMode=popup)
Nice answers in return of this question with firm arguments and describing
all on the topic of that.
10 Meetups On Door Repair Near Me You Should Attend window replacement near me (https://chameau.net/bbs/board.php?bo_table=free&wr_id=942159)
Casino Characters And Many A Free Bet 프라그마틱 체험 (http://www.top-forum.ir)
Buyuk kazanclar icin en iyi casino Sweet bonanza
Guide To Double Glazed Window Replacement
Near Me: The Intermediate Guide To Double Glazed Window
Replacement Near Me glazed
See What Double Glazing Repairs Near Me Tricks The Celebs Are Utilizing
Double Glazing Repairs Near Me
Hello There. I found your blog using msn. This is
a really well written article. I will make sure to bookmark
it and return to read more of your useful info. Thanks for the post.
I will certainly comeback.
Here is my web blog: สาระน่ารู้ทั่วไป
Window Repairs Birmingham Tools To Streamline Your Daily Life Window Repairs Birmingham Technique Every Person Needs To Learn Doors and windows Supplier Birmingham
The 10 Most Scariest Things About Double Glazing Company Near Me Double glazing
company near me (higgledy-piggledy.xyz)
You’ll Never Be Able To Figure Out This Ferrari Key Programming
Near Me’s Benefits ferrari key programming
Incredible quest there. What occurred after? Take care!
It’s truly very complicated in this busy life to listen news on Television, thus I only use web for
that reason, and get the most up-to-date news.
You’ll Never Be Able To Figure Out This Upvc Door Repairs Near Me’s Benefits
upvc door repairs near me (http://www.katu.or.kr)
5 Lessons You Can Learn From Medical Malpractice Settlement Avalon medical Malpractice attorney
The 9 Things Your Parents Teach You About Upvc Door Hinges upvc Door hinges