From aacd2217c5c33628b9a2ad4457977b842d165145 Mon Sep 17 00:00:00 2001
From: "bocska.karina" <bocska.karina@hallgato.ppke.hu>
Date: Sun, 3 Nov 2024 10:21:34 +0100
Subject: [PATCH] use normals as origin point
---
headers/tetrahedronGenerator.hpp | 19 +++++++++++++++----
pointClouds/downsampled_trafo.ply | 4 ++--
pointClouds/tetrahedron_downsampled_trafo.obj | 4 ++--
.../tetrahedron_downsampled_trafo_normals.fbx | 3 +++
4 files changed, 22 insertions(+), 8 deletions(-)
create mode 100644 pointClouds/tetrahedron_downsampled_trafo_normals.fbx
diff --git a/headers/tetrahedronGenerator.hpp b/headers/tetrahedronGenerator.hpp
index fa46f99..3f7458a 100644
--- a/headers/tetrahedronGenerator.hpp
+++ b/headers/tetrahedronGenerator.hpp
@@ -52,6 +52,7 @@ inline void createTetrahedronModel(std::string plyFile) {
dist *= 0.2f;
int i = 1;
+ int vn_i = 1;
for (pcl::PointXYZRGB &pt : cloud->points) {
std::vector<pcl::PointXYZ> vertex =
calculateTetrahedronVertices(dist, pt.x, pt.y, pt.z);
@@ -63,12 +64,22 @@ inline void createTetrahedronModel(std::string plyFile) {
<< std::endl;
}
+ // write the original point coordinate as the vertex normal
+ fout << "vn " << pt.x << " " << pt.y << " " << pt.z << std::endl;
+
// write the faces
- fout << "f " << i << " " << i + 1 << " " << i + 2 << std::endl;
- fout << "f " << i << " " << i + 2 << " " << i + 3 << std::endl;
- fout << "f " << i << " " << i + 3 << " " << i + 1 << std::endl;
- fout << "f " << i + 1 << " " << i + 3 << " " << i + 2 << std::endl;
+ std::string vn = "//" + std::to_string(vn_i);
+ fout << "f " << i << vn << " " << i + 1 << vn << " " << i + 2 << vn
+ << std::endl;
+ fout << "f " << i << vn << " " << i + 2 << vn << " " << i + 3 << vn
+ << std::endl;
+ fout << "f " << i << vn << " " << i + 3 << vn << " " << i + 1 << vn
+ << std::endl;
+ fout << "f " << i + 1 << vn << " " << i + 3 << vn << " " << i + 2 << vn
+ << std::endl;
+
i += 4;
+ vn_i++;
}
fout.close();
diff --git a/pointClouds/downsampled_trafo.ply b/pointClouds/downsampled_trafo.ply
index 203cc99..5f3558c 100644
--- a/pointClouds/downsampled_trafo.ply
+++ b/pointClouds/downsampled_trafo.ply
@@ -1,3 +1,3 @@
version https://git-lfs.github.com/spec/v1
-oid sha256:e2ff144a5f62edae0b4b5a534d1dd960c85c0cf5f2717778f3793786459eeada
-size 2320387
+oid sha256:964b958d8e902b7b885d02d9fad4ff1f5a018d9225aeaa19ceed97a0abccde93
+size 815364
diff --git a/pointClouds/tetrahedron_downsampled_trafo.obj b/pointClouds/tetrahedron_downsampled_trafo.obj
index 511a436..6b8846f 100644
--- a/pointClouds/tetrahedron_downsampled_trafo.obj
+++ b/pointClouds/tetrahedron_downsampled_trafo.obj
@@ -1,3 +1,3 @@
version https://git-lfs.github.com/spec/v1
-oid sha256:83412fd727cd76f4fc60d2c0c12c7d9f6da678b5a0de7b018d0df0162cb5d2c0
-size 7604927
+oid sha256:9916f32f45b4b9bf5551d30f9f95a78c2d21281145d939d0bb0606d0cb22a57c
+size 10360938
diff --git a/pointClouds/tetrahedron_downsampled_trafo_normals.fbx b/pointClouds/tetrahedron_downsampled_trafo_normals.fbx
new file mode 100644
index 0000000..959b70b
--- /dev/null
+++ b/pointClouds/tetrahedron_downsampled_trafo_normals.fbx
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b9d947e802aa203b1c41815035335dcfb4db0d541910aafacde796c08316a40f
+size 5760044
--
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