# CanvasContext. bezierCurveTo(number cp1x, number cp1y, number cp2x, number cp2y, number x, number and)
with Promise style call: Not supported
Mini Program plugin: Support
Create a cubic bezier curve path. The starting point of a curve is the previous point in the path.
# parameter
# number cp1x
Of the first Bezier control point. x coordinate
# number cp1y
Of the first Bezier control point. and coordinate
# number cp2x
Of the second Bessel control point. x coordinate
# number cp2y
Of the second Bessel control point. and coordinate
# number x
Ending point x coordinate
# number and
Ending point and coordinate
# sample code
const ctx = wx.createCanvasContext('myCanvas')
// Draw points
ctx.beginPath()
ctx.arc(20, 20, 2, 0, 2 * Math.PI)
ctx.setFillStyle('red')
ctx.fill()
ctx.beginPath()
ctx.arc(200, 20, 2, 0, 2 * Math.PI)
ctx.setFillStyle('lightgreen')
ctx.fill()
ctx.beginPath()
ctx.arc(20, 100, 2, 0, 2 * Math.PI)
ctx.arc(200, 100, 2, 0, 2 * Math.PI)
ctx.setFillStyle('blue')
ctx.fill()
ctx.setFillStyle('black' )
ctx.setFontSize(12)
// Draw guides
ctx.beginPath()
ctx.moveTo(20, 20)
ctx.lineTo(20, 100)
ctx.lineTo(150, 75)
ctx.moveTo(200, 20)
ctx.lineTo(200, 100)
ctx.lineTo(70, 75)
ctx.setStrokeStyle('#AAAAAA')
ctx.stroke()
// Draw quadratic curve
ctx.beginPath()
ctx.moveTo(20, 20)
Ctx.bezierCurveTo(20, 100, 200, 100, 200, 20)
ctx.setStrokeStyle('black' )
ctx.stroke()
ctx.draw()
In the light of moveTo(20, 20) BezierCurveTo(20, 100, 200, 100, 200, 20) The three key coordinates are as follows:
- Red: starting point(20, 20)
- Blue: Two control points(20, 100) (200, 100)
- Green: The End Point(200, 20)