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P5.js 日本語リファレンス(drawingContext)

Last updated at Posted at 2020-05-11

このページでは[「P5.js 日本語リファレンス」] (https://qiita.com/bit0101/items/91818244dc26c767a0fe) の 変数 drawingContextを説明します。

drawingContext

説明文

p5.j​​s APIはグラフィックを作成するための多くの機能を提供しますが、p5によって公開されていないネイティブなHTML5 Canvas機能がいくつかあります。次の例のように、変数 drawingContext を使用して直接呼び出すこともできます。これは canvas.getContext('2d') または canvas.getContext('webgl') を呼び出すのと同じです。呼び出すことができる可能な描画関数については, ネイティブキャンバスAPIを参照してください。

構文

drawingContext

function setup() {
  drawingContext.shadowOffsetX = 5;
  drawingContext.shadowOffsetY = -5;
  drawingContext.shadowBlur = 10;
  drawingContext.shadowColor = 'black';
  background(200);
  ellipse(width/ 2, height/ 2, 50, 50);
}

実行結果

drawingContext.png

著作権

p5.js was created by Lauren McCarthy and is developed by a community of collaborators, with support from the Processing Foundation and NYU ITP. Identity and graphic design by Jerel Johnson.

ライセンス

Creative Commons(CC BY-NC-SA 4.0) に従います。

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