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zzzzrrr 2009-11-11 20:22:27 -05:00
parent dede764bb7
commit 8635340839
1 changed files with 10 additions and 22 deletions
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32
python/include/triangulator.pyx
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@ -99,18 +99,15 @@ class Triangulator(object) {
trapezoidalMap.clear
i += 1
// Mark outside trapezoids
for t in trapezoidalMap.map
markOutside(t)
// Collect interior trapezoids
for t in trapezoidalMap.map
if t.inside:
trapezoids.append(t)
t.addPoints()
// Generate the triangles
createMountains
createMountains()
}
@ -132,29 +129,20 @@ class Triangulator(object) {
if(s.mPoints.size > 0) {
val mountain = new MonotoneMountain
var k: List[Point] = None
mountain = MonotoneMountain()
// Sorting is a perfromance hit. Literature says this can be accomplised in
// linear time, although I don't see a way around using traditional methods
// when using a randomized incremental algorithm
if(s.mPoints.size < 10)
// Insertion sort is one of the fastest algorithms for sorting arrays containing
// fewer than ten elements, or for lists that are already mostly sorted.
k = Util.insertSort((p1: Point, p2: Point) => p1 < p2)(s.mPoints).toList
if len(s.mPoints) < 10:
k = insertSort((p1: Point, p2: Point) => p1 < p2)(s.mPoints).toList
else
k = Util.msort((p1: Point, p2: Point) => p1 < p2)(s.mPoints.toList)
k = msort((p1: Point, p2: Point) => p1 < p2)(s.mPoints.toList)
val points = s.p :: k ::: List(s.q)
points = s.p :: k ::: List(s.q)
var j = 0
while(j < points.size) {
mountain += points(j)
j += 1
}
for p in points:
mountain.add(p)
// Triangulate monotone mountain
mountain process
mountain.process()
// Extract the triangles into a single list
j = 0