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...

46,038 Responses

  1. he knows what raping me will do to me and he does it anyway.It’s such a shock,オナドール

  2. the investigators assigned 20 to read Mintz’s A Tired Woman’s Guide to Passionate Sex,ラブドール オナホwhich previous research had shown provides a significant libido boost.

  3. 中国 えろ表示:

    ラブドール 高級 I see no reason to slow things down.” —A womanThere are many roads to developing enduring romantic relationships,

  4. 中国 エロ表示:

    女性 用 ラブドールor 10 conversations with their mom,yet the quantity didn’t matter so long as their son perceived them as open to talking about sexual topics.

  5. child porn表示:

    What’s up, yeah this article is actually pleasant and I have learned lot of things from it on the
    topic of blogging. thanks.

  6. 中国 エロ表示:

    Sign up for our e mail to appreciate ドール エロHong Kong devoid of paying a detail (along with some solutions once you’re emotion flush).

  7. now imagine the young student is actually walking with a friend,エロ ラブドールclose to sunset,

  8. 中国 エロ表示:

    They become cold,人形 エロcritical,

  9. As you can see in the following two graphs,ラブドール エロthe association between the age of the parents and the sex of the first child is stronger among women than among men.

  10. Bi people are just people, and there are so many different things that are also a part of their identity.女性 用 ラブドール Positive stereotypes are still stereotypes,’ he says.

  11. Need Inspiration? Try Looking Up Mercedes Keys Mercedes key replacement [emplois.fhpmco.fr]

  12. This tactic retains fees down without ラブドール 中古the need of sacrificing a realistic confront.

  13. I didn’t cry, but the only regret was that we weren’t emotionally tied.オナドール It was good in a way though because we were each other’s first.

  14. 中国 えろ表示:

    The market’s expansion is propelled by a ラブドール sexcombination of heightened consumer curiosity and significant advancements in material science and engineering

  15. More grandiose narcissists tend to have limited tolerance for imperfection in their lives,エロ 人形as they expect both themselves and those they are with to be “perfect.

  16. エロ 人形Other times,other people give us ideas we hadn’t considered.

  17. societal, and psychological aspects involved. jydollThe key to shaping our future interactions lies in recognizing and valuing technology’s role in meeting our inherent desires for companionship and closeness.

  18. if you had a tyrannical father who beat you often and scared you to the point that you could barely speak up around him,オナドールexpecting yourself to speak up now,

  19. The refractory period (RP) is the time from ejaculation/orgasm until men can raise their next erection.In teens and young adult men,ラブドール 高級

  20. but it feels weird.ダッチワイフIt feels like something is wrong and they don’t know what’s going on,

  21. Jean-Paul,高級 ラブドールstill angry over their late-night fight,

  22. The Most Worst Nightmare Concerning Replacement Window Glass Near
    Me Be Realized Windows replacements near me

  23. Helping your frustrated pursuer also means helping yourself.The solution starts with retraining your brain.高級 ラブドール

  24. 中国 えろ表示:

    damaging to the victim than The Importance of Speaking Up If You Witness Child Sexual AbuseYou should absolutely speak up,but it can sometimes be difficult to do.オナドール

  25. エロ 人形They state that during arguments,the happiest couples have five positive interactions for every one negative interaction.

  26. have been molested by the same perpetrator as your family member or friend but refuse to either face the truth about this or be afraid of what the perpetrator would do to you if you dare to speak up.I treated a young man in his twenties who disclosed to me that his father had sexually abused him for years.オナドール

  27. The latter is more associated with women. 女性 用 ラブドールI have spontaneous desire and my partner has reactive desire, so we are now physically intimate in a non-sexual way before sex begins, by cuddling or going on dates or just touching in any way.’

  28. 注文を確認する:次のステップに進む前に、ラブドール 中古注文が正確であることを再確認できます。

  29. 学習データの性質上すぐに服を脱ぎがちなモデルなので、セックス ロボットネガティブプロンプト欄に『nsfw』などを記載しておくといいでしょう。

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。