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
купить диплом в благовещенске
5 Killer Qora’s Answers To Asbestos Attorney Mesothelioma mesothelioma lawyer (wiki.iurium.cz)
20 Insightful Quotes About Gas Engineer Corgi Registered Gas Engineer Near Me
Five Killer Quora Answers To Wine Fridge Integrated Wine Fridge Integrated
Mexican Easy Pharm: Mexican Easy Pharm – Mexican Easy Pharm
25 Amazing Facts About Buy A1 And A2 Driving License Online Köpa Svenskt körkort
How Train Accident Lawyer Became The Hottest Trend
In 2023 trucking wreck lawyer (Alena)
Guide To Black Friday Sofa Sale: The Intermediate
Guide The Steps To Black Friday Sofa Sale Sofa Sale
Mexican Easy Pharm: mexico pharmacies prescription drugs – Mexican Easy Pharm
Nine Things That Your Parent Taught You About Citroen Xsara Picasso
Key Fob Replacement Citroen xsara Picasso key
https://indiancertpharm.shop/# Indian pharmacy international shipping
reddit canadian pharmacy
15 Best Attorney For Asbestos Bloggers You Must
Follow mesothelioma lawsuit
5 Qualities People Are Looking For In Every Need Spare Car Key spare keys, https://hikvisiondb.webcam/wiki/Why_Do_So_Many_People_Would_Like_To_Learn_More_About_Spare_Key_For_Car_Cost,
mexican rx online: mexico drug stores pharmacies – medication from mexico pharmacy
Five Killer Quora Answers On Best Lightweight Single Stroller best lightweight single stroller
(http://www.yyml.online)
mexico pharmacies prescription drugs: Mexican Easy Pharm – pharmacies in mexico that ship to usa
You’ll Never Be Able To Figure Out This Ai Sentence Rewriter’s Secrets ai sentence rewriter
The 9 Things Your Parents Taught You About Leather U Shape Sectional leather u shape Sectional
What Is Window Glass Replacement Near Me And Why
Is Everyone Speakin’ About It? window pane replacement glass
Guide To Upvc Windows Repairs Near Me: The Intermediate Guide In Upvc Windows Repairs Near Me
Wood Window Repair Near Me
Responsible For The Mobility Devices Budget?
10 Very Bad Ways To Invest Your Money mobility scooters electric [Allie]
Mexican Easy Pharm: Mexican Easy Pharm – mexico drug stores pharmacies
medication from mexico pharmacy: mexican rx online – Mexican Easy Pharm
See What Frost Free Fridge Freezer 50/50 Sale Tricks The Celebs Are Utilizing Fridge Freezer 50/50 Sale (Fridge-Freezers47508.Fliplife-Wiki.Com)
mexican border pharmacies shipping to usa: buying prescription drugs in mexico – п»їbest mexican online pharmacies
Buy A Real Driving Licence UK Techniques To Simplify Your Daily Lifethe One Buy A Real
Driving Licence UK Trick Every Individual Should Learn Buy a Real driving licence uk
Mesothelioma And Asbestos Lawyer’s History History Of Mesothelioma And Asbestos Lawyer mesothelioma attorneys – Loyd –
5 Pragmatic Slots Free Lessons From Professionals 프라그마틱 슬롯 환수율
What NOT To Do With The Best Brand Of Refrigerator Industry The best brand of refrigerator (telegra.ph)
Mexican Easy Pharm: Mexican Easy Pharm – п»їbest mexican online pharmacies