Mercurial > gemma
annotate pkg/octree/tree.go @ 2472:db0e4ab57977 octree-diff
Turn new point cloud into WKB form of MultiPointZ.
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
---|---|
date | Tue, 26 Feb 2019 12:22:04 +0100 |
parents | a1e751c08c56 |
children | c85b16db8a02 |
rev | line source |
---|---|
1017
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
1 // This is Free Software under GNU Affero General Public License v >= 3.0 |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
2 // without warranty, see README.md and license for details. |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
3 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
4 // SPDX-License-Identifier: AGPL-3.0-or-later |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
5 // License-Filename: LICENSES/AGPL-3.0.txt |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
6 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
7 // Copyright (C) 2018 by via donau |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
8 // – Österreichische Wasserstraßen-Gesellschaft mbH |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
9 // Software engineering by Intevation GmbH |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
10 // |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
11 // Author(s): |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de> |
a244b18cb916
Added GNU Affero General Public License.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
787
diff
changeset
|
13 |
727
41c8dc61f38f
Moved octree loading stuff to octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
726
diff
changeset
|
14 package octree |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
15 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
16 import ( |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
17 "math" |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
18 ) |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
19 |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
20 // Tree is an Octree holding triangles. |
727
41c8dc61f38f
Moved octree loading stuff to octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
726
diff
changeset
|
21 type Tree struct { |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
22 // EPSG is the projection. |
726
5af9ab39e715
Renamed a few types to uppercase names to prepare the move to the octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
707
diff
changeset
|
23 EPSG uint32 |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
24 |
726
5af9ab39e715
Renamed a few types to uppercase names to prepare the move to the octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
707
diff
changeset
|
25 vertices []Vertex |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
26 triangles [][]int32 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
27 index []int32 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
28 |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
29 // Min is the lower left corner of the bbox. |
726
5af9ab39e715
Renamed a few types to uppercase names to prepare the move to the octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
707
diff
changeset
|
30 Min Vertex |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
31 // Max is the upper right corner of the bbox. |
726
5af9ab39e715
Renamed a few types to uppercase names to prepare the move to the octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
707
diff
changeset
|
32 Max Vertex |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
33 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
34 |
2466
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
35 func (ot *Tree) Vertices() []Vertex { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
36 return ot.vertices |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
37 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
38 |
759
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
39 var scale = [4][4]float64{ |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
40 {0.0, 0.0, 0.5, 0.5}, |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
41 {0.5, 0.0, 1.0, 0.5}, |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
42 {0.0, 0.5, 0.5, 1.0}, |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
43 {0.5, 0.5, 1.0, 1.0}, |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
44 } |
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
45 |
2466
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
46 func (ot *Tree) Value(x, y float64) (float64, bool) { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
47 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
48 // out of bounding box |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
49 if x < ot.Min.X || ot.Max.X < x || |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
50 y < ot.Min.Y || ot.Max.Y < y { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
51 return 0, false |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
52 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
53 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
54 type frame struct { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
55 pos int32 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
56 Box2D |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
57 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
58 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
59 all := Box2D{ot.Min.X, ot.Min.Y, ot.Max.X, ot.Max.Y} |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
60 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
61 stack := []frame{{1, all}} |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
62 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
63 for len(stack) > 0 { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
64 top := stack[len(stack)-1] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
65 stack = stack[:len(stack)-1] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
66 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
67 if top.pos > 0 { // node |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
68 if index := ot.index[top.pos:]; len(index) > 7 { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
69 for i := 0; i < 4; i++ { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
70 a := index[i] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
71 b := index[i+4] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
72 if a == 0 && b == 0 { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
73 continue |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
74 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
75 dx := top.X2 - top.X1 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
76 dy := top.Y2 - top.Y1 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
77 nbox := Box2D{ |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
78 dx*scale[i][0] + top.X1, |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
79 dy*scale[i][1] + top.Y1, |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
80 dx*scale[i][2] + top.X1, |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
81 dy*scale[i][3] + top.Y1, |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
82 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
83 if nbox.Contains(x, y) { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
84 if a != 0 { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
85 stack = append(stack, frame{a, nbox}) |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
86 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
87 if b != 0 { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
88 stack = append(stack, frame{b, nbox}) |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
89 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
90 break |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
91 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
92 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
93 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
94 } else { // leaf |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
95 pos := -top.pos - 1 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
96 n := ot.index[pos] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
97 indices := ot.index[pos+1 : pos+1+n] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
98 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
99 for _, idx := range indices { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
100 tri := ot.triangles[idx] |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
101 t := Triangle{ |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
102 ot.vertices[tri[0]], |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
103 ot.vertices[tri[1]], |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
104 ot.vertices[tri[2]], |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
105 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
106 if t.Contains(x, y) { |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
107 return t.Plane3D().Z(x, y), true |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
108 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
109 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
110 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
111 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
112 |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
113 return 0, false |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
114 } |
a1e751c08c56
Calculate difference on single core.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1790
diff
changeset
|
115 |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
116 // Vertical does a vertical cross cut from (x1, y1) to (x2, y2). |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
117 func (ot *Tree) Vertical(x1, y1, x2, y2 float64, fn func(*Triangle)) { |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
118 |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
119 box := Box2D{ |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
120 X1: math.Min(x1, x2), |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
121 Y1: math.Min(y1, y2), |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
122 X2: math.Max(x1, x2), |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
123 Y2: math.Max(y1, y2), |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
124 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
125 |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
126 // out of bounding box |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
127 if box.X2 < ot.Min.X || ot.Max.X < box.X1 || |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
128 box.Y2 < ot.Min.Y || ot.Max.Y < box.Y1 { |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
129 return |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
130 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
131 |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
132 line := NewPlane2D(x1, y1, x2, y2) |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
133 |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
134 type frame struct { |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
135 pos int32 |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
136 Box2D |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
137 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
138 |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
139 dupes := map[int32]struct{}{} |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
140 |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
141 all := Box2D{ot.Min.X, ot.Min.Y, ot.Max.X, ot.Max.Y} |
761
033975d49c90
Removed a bit debug output on vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
760
diff
changeset
|
142 //log.Printf("area: %f\n", (box.x2-box.x1)*(box.y2-box.y1)) |
033975d49c90
Removed a bit debug output on vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
760
diff
changeset
|
143 //log.Printf("all: %f\n", (all.x2-all.x1)*(all.y2-all.y1)) |
758
0f3ba8bfa641
Simplified vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
757
diff
changeset
|
144 |
0f3ba8bfa641
Simplified vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
757
diff
changeset
|
145 stack := []frame{{1, all}} |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
146 |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
147 for len(stack) > 0 { |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
148 top := stack[len(stack)-1] |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
149 stack = stack[:len(stack)-1] |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
150 |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
151 if top.pos > 0 { // node |
1790
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
152 if index := ot.index[top.pos:]; len(index) > 7 { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
153 for i := 0; i < 4; i++ { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
154 a := index[i] |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
155 b := index[i+4] |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
156 if a == 0 && b == 0 { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
157 continue |
758
0f3ba8bfa641
Simplified vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
757
diff
changeset
|
158 } |
1790
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
159 dx := top.X2 - top.X1 |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
160 dy := top.Y2 - top.Y1 |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
161 nbox := Box2D{ |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
162 dx*scale[i][0] + top.X1, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
163 dy*scale[i][1] + top.Y1, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
164 dx*scale[i][2] + top.X1, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
165 dy*scale[i][3] + top.Y1, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
166 } |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
167 if nbox.Intersects(box) && nbox.IntersectsPlane(line) { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
168 if a != 0 { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
169 stack = append(stack, frame{a, nbox}) |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
170 } |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
171 if b != 0 { |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
172 stack = append(stack, frame{b, nbox}) |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
173 } |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
174 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
175 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
176 } |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
177 } else { // leaf |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
178 pos := -top.pos - 1 |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
179 n := ot.index[pos] |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
180 indices := ot.index[pos+1 : pos+1+n] |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
181 |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
182 for _, idx := range indices { |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
183 if _, found := dupes[idx]; found { |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
184 continue |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
185 } |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
186 tri := ot.triangles[idx] |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
187 t := Triangle{ |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
188 ot.vertices[tri[0]], |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
189 ot.vertices[tri[1]], |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
190 ot.vertices[tri[2]], |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
191 } |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
192 |
774
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
193 v0 := line.Eval(t[0].X, t[0].Y) |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
194 v1 := line.Eval(t[1].X, t[1].Y) |
c55771b7c502
Moved Box2D and Plane2D into vertex.go and made to API public.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
761
diff
changeset
|
195 v2 := line.Eval(t[2].X, t[2].Y) |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
196 |
787
3d927e06b92c
Triangle intersection. WIP. Currently interpolation is messed up.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
778
diff
changeset
|
197 if onPlane(v0) || onPlane(v1) || onPlane(v2) || |
759
46fe2ae761e8
Check bounding boxes against plane, too. WIP
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
758
diff
changeset
|
198 sides(sides(sides(0, v0), v1), v2) == 3 { |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
199 fn(&t) |
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
200 } |
758
0f3ba8bfa641
Simplified vertical traversal of octree.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
757
diff
changeset
|
201 dupes[idx] = struct{}{} |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
202 } |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
203 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
204 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
205 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
206 |
1692
f4dcbe8941a1
Octree: Resolved the remaing golint issues with this package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1017
diff
changeset
|
207 // Horizontal does a horizontal cross cut. |
727
41c8dc61f38f
Moved octree loading stuff to octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
726
diff
changeset
|
208 func (ot *Tree) Horizontal(h float64, fn func(*Triangle)) { |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
209 |
755
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
210 if h < ot.Min.Z || ot.Max.Z < h { |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
211 return |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
212 } |
1a1a8b5f2d02
Vertical traversal of octree for cross sections. WIP.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
728
diff
changeset
|
213 |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
214 type frame struct { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
215 pos int32 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
216 min float64 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
217 max float64 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
218 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
219 |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
220 dupes := map[int32]struct{}{} |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
221 |
756
5e14000829d1
Complete vertical octree traversal. Seems not very selective.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
755
diff
changeset
|
222 stack := []frame{{1, ot.Min.Z, ot.Max.Z}} |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
223 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
224 for len(stack) > 0 { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
225 top := stack[len(stack)-1] |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
226 stack = stack[:len(stack)-1] |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
227 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
228 pos := top.pos |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
229 if pos == 0 { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
230 continue |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
231 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
232 min, max := top.min, top.max |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
233 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
234 if pos > 0 { // node |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
235 if mid := (max-min)*0.5 + min; h >= mid { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
236 pos += 4 // nodes with z-bit set |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
237 min = mid |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
238 } else { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
239 max = mid |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
240 } |
1790
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
241 if index := ot.index[pos:]; len(index) > 3 { |
1788
00f34a00e6d5
Octree: Don't crash in horizontal traversal if the tree is empty.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1692
diff
changeset
|
242 stack = append(stack, |
1790
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
243 frame{index[0], min, max}, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
244 frame{index[1], min, max}, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
245 frame{index[2], min, max}, |
fe1aa62195c2
Octree: Same emtry tree fix for horizontal as for vertical traversal. Re-worked both to be BCE friendly.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1788
diff
changeset
|
246 frame{index[3], min, max}) |
1788
00f34a00e6d5
Octree: Don't crash in horizontal traversal if the tree is empty.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
1692
diff
changeset
|
247 } |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
248 } else { // leaf |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
249 pos = -pos - 1 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
250 n := ot.index[pos] |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
251 //log.Printf("%d %d %d\n", pos, n, len(ot.index)) |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
252 indices := ot.index[pos+1 : pos+1+n] |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
253 |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
254 for _, idx := range indices { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
255 if _, found := dupes[idx]; found { |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
256 continue |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
257 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
258 tri := ot.triangles[idx] |
726
5af9ab39e715
Renamed a few types to uppercase names to prepare the move to the octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
707
diff
changeset
|
259 t := Triangle{ |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
260 ot.vertices[tri[0]], |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
261 ot.vertices[tri[1]], |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
262 ot.vertices[tri[2]], |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
263 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
264 |
727
41c8dc61f38f
Moved octree loading stuff to octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
726
diff
changeset
|
265 if !(math.Min(t[0].Z, math.Min(t[1].Z, t[2].Z)) > h || |
41c8dc61f38f
Moved octree loading stuff to octree package.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
726
diff
changeset
|
266 math.Max(t[0].Z, math.Max(t[1].Z, t[2].Z)) < h) { |
707
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
267 dupes[idx] = struct{}{} |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
268 fn(&t) |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
269 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
270 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
271 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
272 } |
9db4ae29ded9
octree: Moved octree traveral code to own file.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
273 } |