[JavaScript] Two Types Of Canvas Size.
GOAL
To understand canvas size, canvas.width and canvas.height, and how to set the size.
2 types of canvas size.
- width and height set by css that determine the size of canvas element relative to the window size
- canvas.width and canvas.height are reference values that determine the criteria for the image to display
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These two sizes have separate meanings and are set independently.
What is the difference between canvas.width and canvas.height?
<style type="text/css"> #canvas-container{ width: 800px; height: 500px; border: solid 2px; } </style> <div id="canvas-area"> <canvas id="canvas-container" width=800 height=500></canvas> </div>
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Change the canvas element size (display size).
<style type="text/css"> #canvas-container{ width: 400px; height: 400px; border: solid 2px; } </style> <div id="canvas-area"> <canvas id="canvas-container" width=800 height=500></canvas> </div>
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Change the canvas buffer size.
<style type="text/css"> #canvas-container{ width: 800px; height: 500px; border: solid 2px; } </style> <div id="canvas-area"> <canvas id="canvas-container" width=250 height=600></canvas> </div>
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