1 files changed, 49 insertions, 0 deletions
diff --git a/Map/MapRenderComponents/MapVertices.swift b/Map/MapRenderComponents/MapVertices.swift
new file mode 100644
index 0000000..71f85be
--- /dev/null
+++ b/Map/MapRenderComponents/MapVertices.swift
@@ -0,0 +1,49 @@
+import SwiftUI
+
+struct MapVertices: View {
+
+  @Environment(\.colorScheme) var colorScheme
+
+  let mapSize: CGSize
+  let vertexSize: CGSize
+  let vertices: [Vertex]
+  let padding = CGFloat(4.0)
+
+  var color: MapColor {
+    MapColor.colorForScheme(colorScheme)
+  }
+
+  var body: some View {
+    ForEach(vertices, id: \.id) { vertex in
+      Path { path in
+        path.addEllipse(
+          in: CGRect(
+            origin: CGPoint(x: w(vertex.position.x), y: h(vertex.position.y)), size: vertexSize
+          ))
+      }.fill(color.foreground)
+      Text(vertex.label).foregroundColor(color.secondary).offset(
+        CGSize(
+          width: w(vertex.position.x) + vertexSize.width + padding,
+          height: h(vertex.position.y)))
+    }
+  }
+
+  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 MapVertices_Previews: PreviewProvider {
+  static var previews: some View {
+    MapVertices(
+      mapSize: CGSize(width: 400.0, height: 400.0), vertexSize: CGSize(width: 25.0, height: 25.0),
+      vertices: [
+        Vertex(id: 0, label: "A", position: CGPoint(x: 50.0, y: 50.0)),
+        Vertex(id: 0, label: "A", position: CGPoint(x: 10.0, y: 20.0)),
+      ])
+  }
+}