Cleanup

Outdooractive · Dec 4, 2023 · 199a6b0 · 199a6b0
1 parent 09ef507
commit 199a6b0
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Showing 2 changed files with 15 additions and 5 deletions.
diff --git a/Sources/GISTools/Algorithms/FrechetDistance.swift b/Sources/GISTools/Algorithms/FrechetDistance.swift
@@ -35,11 +35,11 @@ extension LineString {
     /// Fréchet  distance between to geometries.
     ///
     /// - Parameters:
-    ///    - from: The other geometry of equal type
-    ///    - distanceFunction: The algorithm to use for distance calculations
-    ///    - segmentLength: Adds coordinates to the lines for improved matching (in meters)
+    ///    - from: The other geometry of equal type.
+    ///    - distanceFunction: The algorithm to use for distance calculations.
+    ///    - segmentLength: Adds coordinates to the lines for improved matching (in meters).
     ///
-    /// - Returns: The frechet distance between the to geometries
+    /// - Returns: The frechet distance between the two geometries.
     public func frechetDistance(
         from other: LineString,
         distanceFunction: FrechetDistanceFunction = .haversine,

diff --git a/Sources/GISTools/Algorithms/LineChunk.swift b/Sources/GISTools/Algorithms/LineChunk.swift
@@ -41,7 +41,7 @@ extension LineString {
             return LineString()
         }
 
-        return LineString(chunked(segmentLength: segmentLength).lineSegments) ?? LineString()
+        return LineString(chunked(segmentLength: segmentLength).lineSegments) ?? self
     }
 
 }
@@ -56,6 +56,16 @@ extension MultiLineString {
         MultiLineString(lineStrings.flatMap({ $0.chunked(segmentLength: segmentLength).lineStrings })) ?? self
     }
 
+    /// Divides a *MultiLineString* into evenly spaced segments of a specified length.
+    /// If the line is shorter than the segment length then the original line is returned.
+    ///
+    /// - Parameter segmentLength: How long to make each segment, in meters
+    public func evenlyDivided(segmentLength: CLLocationDistance) -> MultiLineString {
+        MultiLineString(lineStrings.map({
+            LineString($0.chunked(segmentLength: segmentLength).lineSegments) ?? $0
+        })) ?? self
+    }
+
 }
 
 extension Feature {