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July 17, 2019 01:24
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Rombo en JavaScript con Canvas
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width"> | |
<title>Rombo con canvas</title> | |
</head> | |
<body> | |
<h1>Rombo con canvas y JavaScript</h1> | |
<a href="//parzibyte.me/blog">By Parzibyte</a> | |
<br> | |
<canvas id="canvas"></canvas> | |
<script src="script.js"></script> | |
</body> | |
</html> |
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/** | |
* Ejercicios con Canvas y JavaScript: dibujo de figuras geométricas | |
* | |
* https://parzibyte.me/blog | |
*/ | |
const ALTURA_CANVAS = 200, | |
ANCHURA_CANVAS = 400; | |
// Obtener el elemento del DOM | |
const canvas = document.querySelector("#canvas"); | |
canvas.width = ANCHURA_CANVAS; | |
canvas.height = ALTURA_CANVAS; | |
// Del canvas, obtener el contexto para poder dibujar | |
const contexto = canvas.getContext("2d"); | |
// Estilo de dibujo | |
// Grosor de línea | |
contexto.lineWidth = 5; | |
// Color de línea | |
contexto.strokeStyle = "#212121"; | |
// Color de relleno | |
contexto.fillStyle = "#C2185B"; | |
// Comenzamos la ruta de dibujo, o path | |
contexto.beginPath(); | |
// Nos movemos a la "punta" superior | |
contexto.moveTo(55, 5); | |
// Dibujamos la línea que va hacia la derecha | |
contexto.lineTo(105, 55); | |
// Ahora la que va hacia abajo | |
contexto.lineTo(55, 105); | |
// Ahora la que va hacia la izquierda | |
contexto.lineTo(5, 55); | |
// Y dejamos que la última línea la dibuje JS | |
contexto.closePath(); | |
// Hacemos que se dibuje | |
contexto.stroke(); | |
// Lo rellenamos | |
contexto.fill(); |
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