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comparison InteractiveCharts/LineChart/Helpers/LinePath.swift @ 8:959175ee5ebd

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Implement interaction with ChartView
author Dennis Concepción Martín <66180929+denniscm190@users.noreply.github.com>
date Mon, 26 Apr 2021 23:06:42 +0200
parents f828c7c408d4
children
comparison
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7:a9690565726b 8:959175ee5ebd
8 import SwiftUI 8 import SwiftUI
9 9
10 struct LinePath: Shape { 10 struct LinePath: Shape {
11 var data: [Double] 11 var data: [Double]
12 var (width, height): (CGFloat, CGFloat) 12 var (width, height): (CGFloat, CGFloat)
13 @Binding var pathPoints: [CGPoint]
13 14
14 func path(in rect: CGRect) -> Path { 15 func path(in rect: CGRect) -> Path {
15 var path = Path() 16 var path = Path()
16 17
17 let normalizedData = normalize(data) 18 let normalizedData = normalize(data)
18 let widthBetweenDataPoints = Double(width) / Double(normalizedData.count - 1) // Remove first point 19 let widthBetweenDataPoints = Double(width) / Double(normalizedData.count - 1) // Remove first point
19 let initialPoint = normalizedData[0] * Double(height) 20 let initialPoint = normalizedData[0] * Double(height)
20 var x: Double = 0 21 var x: Double = 0
21
22 var pathPoints = [CGPoint]()
23 22
24 path.move(to: CGPoint(x: x, y: initialPoint)) 23 path.move(to: CGPoint(x: x, y: initialPoint))
25 for y in normalizedData { 24 for y in normalizedData {
26 if normalizedData.firstIndex(of: y) != 0 { // Skip first point 25 if normalizedData.firstIndex(of: y) != 0 { // Skip first point
27 x += widthBetweenDataPoints 26 x += widthBetweenDataPoints