How to draw dots and dots with Canvas in HTML5

This article mainly explains "how to draw dots and dots in HTML5 with Canvas". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to draw dots and dots with Canvas in HTML5.

The code is as follows:

Var canvasPrototype = window.CanvasRenderingContext2D & & CanvasRenderingContext2D.prototype

CanvasPrototype.dottedLine = function (x1, y1, x2, y2, interval) {

If (! interval) {

Interval = 5

}

Var isHorizontal=true

If (x1==x2) {

IsHorizontal=false

}

Var len = isHorizontal? X2-x1: y2-y1

This.moveTo (x1, y1)

Var progress=0

While (len > progress) {

Progress + = interval

If (progress > len) {

Progress = len

}

If (isHorizontal) {

This.moveTo (x1 recording materials y1)

This.arc (x1 recording records, y1 recording, 1 reciting, 0 recording, 2 recording, Math.PIMagneTrue)

This.fill ()

} else {

This.moveTo (x1century y1progress)

This.arc (x1 recordy1 recording books, 1 record0meme 2 fugitive Math.PIMagneTrue)

This.fill ()

}

}

}

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