3rd-party/poly2tri
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This commit is contained in:
zzzzrrr 2009-08-04 21:53:13 -04:00
parent 660f5d752a
commit 456a6a8d15
2 changed files with 10 additions and 5 deletions
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2
src/org/poly2tri/Poly2Tri.scala
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@ -84,7 +84,7 @@ class Poly2TriDemo extends BasicGame("Poly2Tri") {
val strange = "data/strange.dat"
val i18 = "data/i.18"
var currentModel = i18
var currentModel = strange
def init(container: GameContainer) {
selectModel(currentModel)

13
src/org/poly2tri/cdt/CDT.scala
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@ -124,7 +124,7 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
// Implement sweep-line
private def sweep {
for(i <- 1 until points.size) {
for(i <- 1 until 10 /*points.size*/) {
val point = points(i)
// Process Point event
val triangle = pointEvent(point)
@ -138,7 +138,7 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
val node = aFront.locate(point)
if(point.x == node.point.x && node != aFront.head) {
if(point.x == node.point.x && node.prev != null) {
// Projected point coincides with existing point; create two triangles
val rPts = Array(point, node.point, node.next.point)
@ -202,13 +202,14 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
// STEP 2: Remove intersected triangles
// STEP 3: Triangulate empty areas.
if(firstTriangle != null && !firstTriangle.contains(edge)) {
if(firstTriangle != null && !firstTriangle.contains(edge) && firstTriangle != triangle) {
// Collect intersected triangles
val triangles = new ArrayBuffer[Triangle]
triangles += firstTriangle
val e = edge.p - edge.q
while(!triangles.last.contains(edge.p))
while(!triangles.last.contains(edge.p))
triangles += triangles.last.findNeighbor(e)
// TODO: Implement this section
@ -226,6 +227,7 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
val points = new ArrayBuffer[Point]
var node = aFront.locate(point1)
val node1 = node
val foo = node
node = node.next
@ -243,6 +245,9 @@ class CDT(val points: List[Point], val segments: List[Segment], iTriangle: Trian
node1.next = node2
node2.prev = node1
T.first.neighbors(0) = foo.next.triangle
T.first.neighbors(2) = foo.triangle
T.foreach(t => mesh.map += t)
}