Rectangles and Filled Shapes
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The fillStyle property allows you to set the color, gradient, or pattern used to fill shapes drawn on the canvas. You can assign a color using a string like "#ff0000" for red or "rgba(52, 152, 219, 0.5)" for a semi-transparent blue. Similarly, strokeStyle sets the color, gradient, or pattern for the outlines of shapes. Both properties accept CSS color values, enabling a wide variety of visual effects.
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To remove part of your drawing or reset a specific area, use clearRect(x, y, width, height). This method erases everything within the defined rectangle, allowing you to clear mistakes, update animations, or manage dynamic content efficiently. For example, calling ctx.clearRect(0, 0, canvas.width, canvas.height) will clear the entire canvas.
1. Which method would you use to draw a filled rectangle?
2. What property is used to set the color for filling shapes?
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Can you explain the difference between fillStyle and strokeStyle with examples?
How do I use gradients or patterns with fillStyle and strokeStyle?
What happens if I use clearRect on a part of the canvas that hasn't been drawn on yet?
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Rectangles and Filled Shapes
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index.html
The fillStyle property allows you to set the color, gradient, or pattern used to fill shapes drawn on the canvas. You can assign a color using a string like "#ff0000" for red or "rgba(52, 152, 219, 0.5)" for a semi-transparent blue. Similarly, strokeStyle sets the color, gradient, or pattern for the outlines of shapes. Both properties accept CSS color values, enabling a wide variety of visual effects.
index.html
To remove part of your drawing or reset a specific area, use clearRect(x, y, width, height). This method erases everything within the defined rectangle, allowing you to clear mistakes, update animations, or manage dynamic content efficiently. For example, calling ctx.clearRect(0, 0, canvas.width, canvas.height) will clear the entire canvas.
1. Which method would you use to draw a filled rectangle?
2. What property is used to set the color for filling shapes?
Tak for dine kommentarer!