Refactor decision of contour levels into its own function

JuliaGeometry · Nov 3, 2014 · 7bded64 · 7bded64
1 parent ff8c309
commit 7bded64
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/src/Contour.jl b/src/Contour.jl
@@ -22,13 +22,16 @@ function contour(x, y, z, level::Number)
 end
 contours(x,y,z,levels) = [contour(x,y,z,l) for l in levels]
 function contours(x,y,z,Nlevels::Integer)
-    zmin,zmax = extrema(z)
-    dz = (zmax-zmin) / (Nlevels+1)
-    levels = range(zmin+dz,dz,Nlevels)
-    contours(x,y,z,levels)
+    contours(x,y,z,contourlevels(z,Nlevels))
 end
 contours(x,y,z) = contours(x,y,z,10)
 
+function contourlevels(z,n)
+    zmin,zmax = extrema(z)
+    dz = (zmax-zmin) / (n+1)
+    range(zmin+dz,dz,n)
+end
+
 function coordinates(c::Curve2)
     N = length(c.vertices)
     xlist = Array(Float64,N)