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vtvt_demo_2.html
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<!DOCTYPE html>
<html lang="en-CA">
<head>
<title>vtvt demo</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="vtvt_demo_styles.css">
<script type="text/javascript" src="vtvt.js"></script>
</head>
<body>
<h3>Demo canvas #2</h3>
<p>Another illustration of vector addition</p>
<div class="canvas-wrapper">
<canvas id='vector_canvas_2' class="canvas-wrapped"></canvas>
</div>
<script>
// *************************************************************************************************
// Demo canvas 2
// initialize the scene
var scene2 = new vtvt({canvas_id: "vector_canvas_2", grid_res: 16, circle_rad: 0.5, show_matrix: false, show_eig: false});
// vector , can be dragged
scene2.addVector({coords: [-2, -4], c: "190, 160, 0", draggable: true, kind: 'vector', label: "v1"});
scene2.addVector({coords: [-1, 7], c: "0, 160, 190", draggable: true, kind: 'vector', label: "v2", map_coords: function(){
return {
mapXo: scene2.vectors[0].coord_x,
mapYo: scene2.vectors[0].coord_y
};
} });
scene2.addVector({coords: [6, 1], c: "190, 0, 190", draggable: true, kind: 'vector', label: "v3", map_coords: function(){
return {
mapXo: scene2.vectors[0].coord_x + scene2.vectors[1].coord_x,
mapYo: scene2.vectors[0].coord_y + scene2.vectors[1].coord_y
};
} });
scene2.addVector({c: "200,200,200", draggable: true, kind: 'vector', draggable: false, label: " v1+v2+v3", map_coords: function(){
return {
mapX: scene2.vectors[0].coord_x + scene2.vectors[1].coord_x + scene2.vectors[2].coord_x,
mapY: scene2.vectors[0].coord_y + scene2.vectors[1].coord_y + scene2.vectors[2].coord_y
};
} });
// render
scene2.render();
</script>
</body>
</html>