HTML Canvas program
Canvas Example
In HTML, a <canvas> element looks like this:
(1) <!DOCTYPE html>
<html>
<body>
<canvas id="myCanvas" width="200" height="100"
style="border:1px solid #000000;">
</canvas>
</body>
</html>
HTML Canvas Drawing
(2)
<!DOCTYPE html>
<html>
<body>
<canvas id="myCanvas" width="200" height="100"
style="border:1px solid #c3c3c3;">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
ctx.fillStyle = "#FF0000";
ctx.fillRect(0,0,150,75);
</script>
</body>
</html>
HTML Canvas Coordinates
Canvas Coordinates
The HTML canvas is a two-dimensional grid.
The upper-left corner of the canvas has the coordinates (0,0)
In the previous chapter, you saw this method used: fillRect(0,0,150,75).
This means: Start at the upper-left corner (0,0) and draw a 150x75 pixels rectangle.
(3) <!DOCTYPE html>
<html>
<body>
<canvas id="myCanvas" width="200" height="100"
style="border:1px solid #d3d3d3;">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
ctx.moveTo(0,0);
ctx.lineTo(200,100);
ctx.stroke();
</script>
</body>
</html>
मैं इस ब्लॉग का संस्थापक और एक पेशेवर ब्लॉगर हूं। यहाँ पर मैं नियमित रूप से अपने पाठकों के लिए उपयोगी और मददगार जानकारी शेयर करता हूं।
Written by Rajeev Tiwari
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