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test_delaunay.html
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test_delaunay.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8"/>
<title>Test Delaunay</title>
<style>
#container {
float: right;
width: 600px;
height: 400px;
}
</style>
<script src="webapp/libs/jquery.min.js"></script>
<script src="webapp/cnc/delaunay.js"></script>
</head>
<body>
<canvas id="container" width="600" height="400"></canvas>
<script>
var triangleCounter = 0;
var container = $('#container');
var canvas = container[0];
var context = canvas.getContext('2d');
function drawTriangle(triangle, vertices, fill) {
var points = triangle.verticesIndexes;
context.beginPath();
context.moveTo(vertices[points[0]].x, vertices[points[0]].y);
context.lineTo(vertices[points[1]].x, vertices[points[1]].y);
context.lineTo(vertices[points[2]].x, vertices[points[2]].y);
context.lineTo(vertices[points[0]].x, vertices[points[0]].y);
context.fillStyle = 'green';
if (fill)
context.fill();
context.stroke();
}
function drawPoint(x, y, color) {
context.beginPath();
context.arc(x, y, 1, 0, 2 * Math.PI, false);
context.fillStyle = color;
context.fill();
}
var delaunayState = createDelaunay(0, 0, container.width(), container.height());
container.click(function (event) {
appendVertex(event.offsetX, event.offsetY, delaunayState);
context.clearRect(0, 0, canvas.width, canvas.height);
$.each(delaunayState.triangles, function (index, triangle) {
if (!triangle.deleted)
if (!triangle.fromSuper)
drawTriangle(triangle, delaunayState.vertices);
});
$.each(delaunayState.vertices, function (_, vertex) {
drawPoint(vertex.x, vertex.y, 'green');
});
});
</script>
</body>