Rectangles in HTML Canvas
- Previous Page Shapes in Canvas
- Next Page Circular in Canvas
Sample
Ihanda ang isang rectangle na 150*100 pixel:
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
ctx.beginPath();
ctx.rect(20, 20, 150, 100);
ctx.stroke();
rect() method
Ang method na rect() ay nagdodagdag ng isang rectangle sa path.
Gramata:
context.rect(x, y, width, height)
| Parametro | Paglalarawan |
|---|---|
| x | Ang x-coordinate ng kanang itaas ng rectangle. |
| y | Ang y-coordinate ng kanang itaas ng rectangle. |
| width | Ang lapad ng rectangle, sa mga pixel. |
| height | Ang taas ng rectangle, sa mga pixel. |
More samples
Sample
gumawa ng tatlong rectangle gamit ang method na rect():
JavaScript:
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
// 红色矩形
ctx.beginPath();
ctx.lineWidth = "6";
ctx.strokeStyle = "red";
ctx.rect(5, 5, 290, 140);
ctx.stroke();
// 绿色矩形
ctx.beginPath();
ctx.lineWidth = "4";
ctx.strokeStyle = "green";
ctx.rect(30, 30, 50, 50);
ctx.stroke();
// 蓝色矩形
ctx.beginPath();
ctx.lineWidth = "10";
ctx.strokeStyle = "blue";
ctx.rect(50, 50, 150, 80);
ctx.stroke();
For more information, see:
- Previous Page Shapes in Canvas
- Next Page Circular in Canvas
