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Diffstat (limited to 'Map/MapRenderComponents/MapEdges.swift')
| -rw-r--r-- | Map/MapRenderComponents/MapEdges.swift | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/Map/MapRenderComponents/MapEdges.swift b/Map/MapRenderComponents/MapEdges.swift deleted file mode 100644 index d40d2aa..0000000 --- a/Map/MapRenderComponents/MapEdges.swift +++ /dev/null @@ -1,92 +0,0 @@ -// -// MapEdges.swift -// Map -// -// Created by Ruben Beltran del Rio on 2/2/21. -// - -import SwiftUI - -struct MapEdges: View { - - @Environment(\.colorScheme) var colorScheme - - let mapSize: CGSize - let lineWidth: CGFloat - let vertexSize: CGSize - let edges: [MapEdge] - - let arrowheadSize = CGFloat(10.0) - - var color: Color { - MapColor.colorForScheme(colorScheme).foreground - } - - var body: some View { - ForEach(edges, id: \.id) { edge in - Path { path in - - // First we transform edges from percentage to map coordinates - let origin = CGPoint(x: w(edge.origin.x), y: h(edge.origin.y)) - let destination = CGPoint(x: w(edge.destination.x), y: h(edge.destination.y)) - - let slope = (destination.y - origin.y) / (destination.x - origin.x) - let angle = atan(slope) - let multiplier = CGFloat(slope < 0 ? -1.0 : 1.0) - let upperAngle = angle - CGFloat.pi / 4.0 - let lowerAngle = angle + CGFloat.pi / 4.0 - - let offsetOrigin = CGPoint( - x: origin.x + multiplier * (vertexSize.width / 2.0) * cos(angle), - y: origin.y + multiplier * (vertexSize.height / 2.0) * sin(angle)) - let offsetDestination = CGPoint( - x: destination.x - multiplier * (vertexSize.width / 2.0) * cos(angle), - y: destination.y - multiplier * (vertexSize.height / 2.0) * sin(angle)) - - path.move(to: offsetOrigin) - path.addLine(to: offsetDestination) - - if edge.arrowhead { - path.move(to: offsetDestination) - path.addLine( - to: CGPoint( - x: offsetDestination.x - multiplier * arrowheadSize * cos(upperAngle), - y: - offsetDestination.y - multiplier * arrowheadSize * sin(upperAngle))) - - path.move(to: offsetDestination) - path.addLine( - to: CGPoint( - x: offsetDestination.x - multiplier * arrowheadSize * cos(lowerAngle), - y: - offsetDestination.y - multiplier * arrowheadSize * sin(lowerAngle))) - } - path.move(to: offsetDestination) - path.closeSubpath() - }.applying( - CGAffineTransform(translationX: vertexSize.width / 2.0, y: vertexSize.height / 2.0) - ).stroke(color, lineWidth: lineWidth) - } - } - - func h(_ dimension: CGFloat) -> CGFloat { - max(0.0, min(mapSize.height, dimension * mapSize.height / 100.0)) - } - - func w(_ dimension: CGFloat) -> CGFloat { - max(0.0, min(mapSize.width, dimension * mapSize.width / 100.0)) - } -} - -struct MapEdges_Previews: PreviewProvider { - static var previews: some View { - MapEdges( - mapSize: CGSize(width: 400.0, height: 400.0), lineWidth: 1.0, - vertexSize: CGSize(width: 25.0, height: 25.0), - edges: [ - MapEdge( - id: 1, origin: CGPoint(x: 2.0, y: 34.0), destination: CGPoint(x: 23.0, y: 76.2), - arrowhead: true) - ]) - } -} |