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。

圖層配置

Layer 1 (421 x 38)
Layer 2 (490 x 479)
Layer 3 (1024 x 800)

<!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:

  1. 擷取PSD資訊並將圖檔轉為Base 64格式
  2. 產生與PSD尺寸大小相同的HTML Canvas
  3. 將產生的Base 64圖檔,依照原始位置放入Canvas中
  4. 將Canvas轉成PNG圖檔
圖層配置
Layer 1 (1024 x 800)
Layer 2 (1024 x 800)
Layer 3 (1024 x 800)

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。

圖層設定

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

圖層設定
Before
After

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

Layer 1
Layer 2
Layer 3
Layer 4

解決方法:無法解決

You may also like...

61,972 Responses

  1. MichaelNok表示:

    You can now order your Spirit Halloween costume on Uber Eats
    кракен вход
    Uber is cashing in on spooky season.

    The ridehailing company will now deliver costumes, makeup, and even decorations from Spirit Halloween, the largest Halloween retailer in North America, Uber announced in a press release Friday.

    Big-box retailers are getting into Halloween earlier and earlier, suggesting American consumers continue spending on the October holiday even as they pull back from other discretionary purchases.

    Customers in the US and Canada can buy their Chipotle burrito costume for the same price as in store, but without having to visit the seasonal Halloween store that pops up in abandoned storefronts every year, Uber said. Of course, there will still be the fees associated with Uber Eats delivery.

    Spirit Halloween has 1,525 locations.

    “The holiday season officially kicks off this time of year, and households across the country are looking to on-demand delivery to get what’s needed—now,” said Beryl Sanders, director of US grocery and retail partnerships at Uber, in a statement.

    Since the pandemic, different types of retailers have partnered with Uber to deliver their goods – such as Olive Garden for its breadsticks and pasta. Uber Eats has also partnered with Big Lots, Lowe’s, Michael’s and Party City for on-demand delivery.

    Uber and its competitors have also experimented with robot deliveries, though those have not fully taken off in the US market.

  2. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт плоттеров с гарантией
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  3. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: ремонт серверов на дому
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  4. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт плоттеров в москве
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  5. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: обслуживание сервер цена
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  6. Curtisges表示:

    You can now order your Spirit Halloween costume on Uber Eats
    kraken сайт
    Uber is cashing in on spooky season.

    The ridehailing company will now deliver costumes, makeup, and even decorations from Spirit Halloween, the largest Halloween retailer in North America, Uber announced in a press release Friday.

    Big-box retailers are getting into Halloween earlier and earlier, suggesting American consumers continue spending on the October holiday even as they pull back from other discretionary purchases.

    Customers in the US and Canada can buy their Chipotle burrito costume for the same price as in store, but without having to visit the seasonal Halloween store that pops up in abandoned storefronts every year, Uber said. Of course, there will still be the fees associated with Uber Eats delivery.

    Spirit Halloween has 1,525 locations.

    “The holiday season officially kicks off this time of year, and households across the country are looking to on-demand delivery to get what’s needed—now,” said Beryl Sanders, director of US grocery and retail partnerships at Uber, in a statement.

    Since the pandemic, different types of retailers have partnered with Uber to deliver their goods – such as Olive Garden for its breadsticks and pasta. Uber Eats has also partnered with Big Lots, Lowe’s, Michael’s and Party City for on-demand delivery.

    Uber and its competitors have also experimented with robot deliveries, though those have not fully taken off in the US market.

  7. DouglasHoapy表示:

    1xBet Pakistan Promo Code https://idematapp.com/wp-content/pages/1xbet_promo_codes_free_bonus_offers.html
    1xBet offers promo codes for users in Pakistan, providing them with bonuses like free bets, deposit matches, or free spins. These codes enhance the betting experience for Pakistani users.

  8. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт обслуживание плоттеров
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  9. 15 Ideas For Gifts For Those Who Are The Box Sash Window Lover In Your Life upvc sash windows near Me – https://ai-db.science

  10. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт плоттеров москва
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  11. VictorNoity表示:

    You can now order your Spirit Halloween costume on Uber Eats
    kra8 gl
    Uber is cashing in on spooky season.

    The ridehailing company will now deliver costumes, makeup, and even decorations from Spirit Halloween, the largest Halloween retailer in North America, Uber announced in a press release Friday.

    Big-box retailers are getting into Halloween earlier and earlier, suggesting American consumers continue spending on the October holiday even as they pull back from other discretionary purchases.

    Customers in the US and Canada can buy their Chipotle burrito costume for the same price as in store, but without having to visit the seasonal Halloween store that pops up in abandoned storefronts every year, Uber said. Of course, there will still be the fees associated with Uber Eats delivery.

    Spirit Halloween has 1,525 locations.

    “The holiday season officially kicks off this time of year, and households across the country are looking to on-demand delivery to get what’s needed—now,” said Beryl Sanders, director of US grocery and retail partnerships at Uber, in a statement.

    Since the pandemic, different types of retailers have partnered with Uber to deliver their goods – such as Olive Garden for its breadsticks and pasta. Uber Eats has also partnered with Big Lots, Lowe’s, Michael’s and Party City for on-demand delivery.

    Uber and its competitors have also experimented with robot deliveries, though those have not fully taken off in the US market.

  12. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт плоттеров в москве
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  13. EugeneZetry表示:

    You can now order your Spirit Halloween costume on Uber Eats
    kraken даркнет
    Uber is cashing in on spooky season.

    The ridehailing company will now deliver costumes, makeup, and even decorations from Spirit Halloween, the largest Halloween retailer in North America, Uber announced in a press release Friday.

    Big-box retailers are getting into Halloween earlier and earlier, suggesting American consumers continue spending on the October holiday even as they pull back from other discretionary purchases.

    Customers in the US and Canada can buy their Chipotle burrito costume for the same price as in store, but without having to visit the seasonal Halloween store that pops up in abandoned storefronts every year, Uber said. Of course, there will still be the fees associated with Uber Eats delivery.

    Spirit Halloween has 1,525 locations.

    “The holiday season officially kicks off this time of year, and households across the country are looking to on-demand delivery to get what’s needed—now,” said Beryl Sanders, director of US grocery and retail partnerships at Uber, in a statement.

    Since the pandemic, different types of retailers have partnered with Uber to deliver their goods – such as Olive Garden for its breadsticks and pasta. Uber Eats has also partnered with Big Lots, Lowe’s, Michael’s and Party City for on-demand delivery.

    Uber and its competitors have also experimented with robot deliveries, though those have not fully taken off in the US market.

  14. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: сколько длится обслуживание сервера
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  15. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: профессиональный ремонт серверов
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  16. Cecile表示:

    hi!,I love your writing very much! proportion we keep up
    a correspondence more about your article on AOL? I need an expert in this area to unravel my problem.
    Maybe that’s you! Looking ahead to see you.

  17. I feel that is among the so much vital info for me.

    And i’m happy reading your article. However wanna commentary on few
    normal things, The web site style is ideal, the articles
    is actually nice : D. Good activity, cheers

  18. Charlesrab表示:

    Viagra prix pharmacie paris Meilleur Viagra sans ordonnance 24h Viagra homme sans ordonnance belgique

  19. HeathZex表示:

    pharmacie en ligne fiable: Pharmacies en ligne certifiees – pharmacie en ligne pas cher

  20. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: ремонт серверного оборудования
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  21. Профессиональный сервисный центр по ремонту бытовой техники с выездом на дом.
    Мы предлагаем:ремонт бытовой техники в уфе
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  22. Сервисный центр предлагает ремонт стиральной машины whirlpool недорого мастер по ремонту стиральной машины whirlpool

  23. Профессиональный сервисный центр по ремонту плоттеров в Москве.
    Мы предлагаем: ремонт широкоформатных плоттеров
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  24. Renaldo表示:

    You’ll Never Guess This Asbestos Attorneys Oklahoma’s Tricks asbestos attorneys – Renaldo,

  25. Thanks for finally writing about > 透過網頁讀取PSD後,依圖層輸出PNG檔案 – 馬老師 雲端研究室 < Liked it!

  26. When someone writes an piece of writing he/she maintains the idea of a user in his/her brain that how a user can know it.
    So that’s why this piece of writing is great.
    Thanks!

  27. Профессиональный сервисный центр по ремонту серверов в Москве.
    Мы предлагаем: ремонт серверов
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  28. Профессиональный сервисный центр по ремонту объективов в Москве.
    Мы предлагаем: цены на ремонт объективов
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

  29. Armandoknot表示:

    Как развить чувство юмора с помощью смешных шуток

  30. Профессиональный сервисный центр по ремонту объективов в Москве.
    Мы предлагаем: ремонт объективов в москве
    Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом!

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。