ramshandilya/bezier

Algorithm to draw smooth bezier curves through a set of points

Bezier

Algorithm to draw smooth bezier curves through a set of points - written in Swift.

bezier's Issues

daynamic add graphPoints ?

Is there any way to dynamic add graph points?

Swift 3

CubicCurveALgorithm.swift is not compatible with swift 3 syntax

It plain and simple just doesn't work

Try the following:

Modify your constraints for a width of 3000 and a height of 500. then replace your dataPoints with this:
private func createCGPointArray() ->[CGPoint] {
var pointArray: [CGPoint?] = []
pointArray.append(CGPoint(x:0, y:0))
pointArray.append(CGPoint(x:54.0, y:0))
pointArray.append(CGPoint(x:108.0, y:0))
pointArray.append(CGPoint(x:162.0, y:0))
pointArray.append(CGPoint(x:217.0, y:0))
pointArray.append(CGPoint(x:271.0, y:0))
pointArray.append(CGPoint(x:325.0, y:0))
pointArray.append(CGPoint(x:379.0, y:0))
pointArray.append(CGPoint(x:434.0, y:0))
pointArray.append(CGPoint(x:488.0, y:0))
pointArray.append(CGPoint(x:542.0, y:0))
pointArray.append(CGPoint(x:597.0, y:0))
pointArray.append(CGPoint(x:651.0, y:0))
pointArray.append(CGPoint(x:705.0, y:0))
pointArray.append(CGPoint(x:759.0, y:0))
pointArray.append(CGPoint(x:814.0, y:0))
pointArray.append(CGPoint(x:868.5, y:0))
pointArray.append(CGPoint(x:922.0, y:0))
pointArray.append(CGPoint(x:977.0, y:0))
pointArray.append(CGPoint(x:1031.0, y:0))
pointArray.append(CGPoint(x:1085.0, y:0))
pointArray.append(CGPoint(x:1139.0, y:0))
pointArray.append(CGPoint(x:1194.0, y:0))
pointArray.append(CGPoint(x:1248.0, y:0))
pointArray.append(CGPoint(x:1302.0, y:39.0))
pointArray.append(CGPoint(x:1357.0, y:177.0))
pointArray.append(CGPoint(x:1411.0, y:236.0))
pointArray.append(CGPoint(x:1465.0, y:157.0))
pointArray.append(CGPoint(x:1519.0, y:295.0))
pointArray.append(CGPoint(x:1574.0, y:354.0))
pointArray.append(CGPoint(x:1628.0, y:414.0))
pointArray.append(CGPoint(x:1682.0, y:414.0))
pointArray.append(CGPoint(x:1737.0, y:414.0))
pointArray.append(CGPoint(x:1791.0, y:473.0))
pointArray.append(CGPoint(x:1845.0, y:473.0))
pointArray.append(CGPoint(x:1899.0, y:473.0))
pointArray.append(CGPoint(x:1954.0, y:236.0))
pointArray.append(CGPoint(x:2008.0, y:236.0))
pointArray.append(CGPoint(x:2062.0, y:157.0))
pointArray.append(CGPoint(x:2116.0, y:78.0))
pointArray.append(CGPoint(x:2171.0, y:39.0))
pointArray.append(CGPoint(x:2225.0, y:0))
pointArray.append(CGPoint(x:2279.0, y:0))
pointArray.append(CGPoint(x:2334.0, y:0))
pointArray.append(CGPoint(x:2388.0, y:0))
pointArray.append(CGPoint(x:2442.0, y:0))

    return pointArray as! [CGPoint]
}

I think you can see this should be a flat line at the bottom of the screen with a "hump" towards the end, then back to Zero. What you get when converting these coordinates is mind boggling.

Incorrect curve

Hi,

There is some issue with this code, it doesn't work well with all data. Please replace your points with:
"100, 200, 300, 120, 400, 350, 350, 170, 200".

You will see this:

Top of the curve should be exactly in point, not above/below. Do you know how to fix it?