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...

46,645 Responses

  1. combined with a low extrinsic motivation for social acceptance or “honor.オナホ 高級“But what is “sexual drive”? I have no doubt that different temperaments,

  2. Are you having sex more or less frequently than that these days? Has something changed to lead to this shift? Or maybe ebbs and flows are what is normal for you; that’s also totally normal.Just get to know what your relationship rhythm is so that you’ll be able to tell when it goes off track and,オナホ ラブドール

  3. The obsession with another can go as far as needing to control a partner’s every action—needing them around all the time,keeping tabs on them,ラブドール 中古

  4. You might even turn this into a recreational research project as you seek ways to grow.ラブドール エロMany of us have fallen madly in love,

  5. as do all of the subjects in this post.In essence,ラブドール おすすめ

  6. リアル ドールmiscommunication,interpersonal conflicts,

  7. “They are not th-,” I began.海外 せっくす

  8. RegardsI think this is among the most vital information forme.セックス ドールAnd i am glad reading your article.

  9. 人形 エロ表示:

    and women are expected to take on a more submissive role to their male partners.ラブドール オナホGender roles play a complex role in sexual desire.

  10. 人形 エロ表示:

    高級 オナホThese inherited traits can influence how we view relationships,manage stress,

  11. I know how uncomfortable this topic is likely to make you.オナドールYour parent(s) may surprise you by being very sensitive to your discomfort.

  12. リアル ドールtry sending them thoughts of compassion.Perhaps they are an obnoxious person because they have had an incredibly painful life.

  13. 人形 エロ表示:

    I don’t think that anyone of any age wants to hear their parents having sex.Nor is anyone particularly comfortable with that thought or visual.オナドール

  14. Bonding over the insanity of the whole thing made us better communicators (“WTF were we thinking?!” is now the refrain when we recount the story to friends)which has improved our relationship—and our connection between the sheets—overall.My husband Neal and I bickered as we drove to “the Land of Love.人形 エロ

  15. 人形 エロ表示:

    ラブドール 中古Unless you’re new to dating or your last partner passed away,you have never been in a “successful” relationship.

  16. 人形 エロ表示:

    and Why the Boom?The pandemic inadvertently became a catalyst for the industry’s growth.ラブドール オナホThe industry saw the most significant growth during the COVID-19 pandemic,

  17. Sexual infidelity.オナドールEmotional infidelity (having an inappropriate emotional connection with someone,

  18. 高級 オナホthis year,my resolution is to think before I open my mouth.

  19. dear me!”But after about an hour,人形 エロI’m so desensitized to what’s happening around me that I start discussing Brexit with Saheedand I don’t even look up when a guy starts fucking a woman from behind against the armrest of the sofa.

  20. 高級 ラブドールthey serve shorter sentences.There have always been couples comprised of older women (cougars) and significantly younger men (cubs),

  21. 人形 エロ表示:

    We might even surmise that,オナホ 高級for Guggenheim,

  22. It doesn’t mean you’re indifferent to other people,ラブドール 男but if you make their responsibilities your own,

  23. ラブドール おすすめAnd if you feel like your friendships are lacking,give some attention to creating goals that can put you closer to developing the type of relationships that you desire.

  24. 人形 エロ表示:

    ”Also,ラブドール おすすめthe legs of my metaphorical tripod are not always symmetrical or always balanced.

  25. 人形 エロ表示:

    By lessening the pressure that you have to accomplish something extraordinary amidst so much chaos,you can mitigate the stress while still moving forward with your goals.リアル ドール

  26. The only way I would lose to that honking driver was by losing my peace of mind.ラブドール 男Why give difficult people power over how you feel and what you do? Your emotional equilibrium is not to be entrusted to the actions of others.

  27. 人形 エロ表示:

    人形 セックスSino Doll are professionals in the field,earning them a wonderful status for a few of the most effective and most real looking silicone intercourse dolls on the globe.

  28. オナドールsuch as finances,sexual behavior,

  29. ダッチワイフDuring a typical KAP session—prefaced by thorough evaluation and discussions with the provider—a patient will usually lie down in a quiet room and take the prescribed dose of ketamine.Providers might put on soft music or have patients wear an eye mask to keep the environment as relaxed as possible.

  30. オナドールBut also,among those with the experience,

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。