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using dynamic request_attribute method for the example

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closes #2422

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1242 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Matthias Möller
2015-03-11 12:46:32 +00:00
parent 7c589bb661
commit 6ca78b0659
3 changed files with 19 additions and 9 deletions
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8
Doc/Tutorial/07b-delete_geometry/delete_geometry.cc
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@@ -51,9 +51,6 @@
struct MyTraits : public OpenMesh::DefaultTraits struct MyTraits : public OpenMesh::DefaultTraits
{ {
VertexAttributes(OpenMesh::Attributes::Status);
FaceAttributes(OpenMesh::Attributes::Status);
EdgeAttributes(OpenMesh::Attributes::Status);
}; };
@@ -67,6 +64,11 @@ int main()
{ {
MyMesh mesh; MyMesh mesh;
// the request has to be called before a vertex/face/edge can be deleted. it grants access to the status attribute
mesh.request_face_status();
mesh.request_edge_status();
mesh.request_vertex_status();
// generate vertices // generate vertices
MyMesh::VertexHandle vhandle[8]; MyMesh::VertexHandle vhandle[8];

9
Doc/tutorial_07b.docu
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@@ -9,11 +9,14 @@ we have to extend the default traits for our mesh class.
Vertices, faces and (half-)edges need the OpenMesh::Attributes::Status attribute Vertices, faces and (half-)edges need the OpenMesh::Attributes::Status attribute
which is used to hold the flag "deleted" if an element is deleted. which is used to hold the flag "deleted" if an element is deleted.
The struct which defines the mesh traits then looks like this: Instead of defining the required attributes via traits on compile-time, it is possible to request
attributes dynamically on run-time by requesting them.
In this example, we want to delete faces, edges and vertices, therefore requesting the status attribute is required.
\note You have to request attributes before you use them, if you don't enable them via traits.
\dontinclude delete_geometry.cc \dontinclude delete_geometry.cc
\skipline struct \skipline // the request
\until }; \until mesh.request_vertex_status();
After having created the geometry of the cube one can delete faces and vertices After having created the geometry of the cube one can delete faces and vertices
by simply calling delete_vertices() (delete_faces() or delete_edges() respectively). by simply calling delete_vertices() (delete_faces() or delete_edges() respectively).

11
src/Unittests/unittests_tutorials.cc
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@@ -609,9 +609,14 @@ TEST_F(OpenMeshTutorials, extending_the_mesh_using_traits) {
EXPECT_TRUE(ok) << "Cannot write mesh to file 'smoothed_extended_output.off'"; EXPECT_TRUE(ok) << "Cannot write mesh to file 'smoothed_extended_output.off'";
} }
/*
TEST_F(OpenMeshTutorials, deleting_geometry_elements) { TEST_F(OpenMeshTutorials, deleting_geometry_elements) {
MyMeshWithStatus mesh; Mesh mesh;
// the request has to be called before a vertex/face/edge can be deleted. it grants access to the status attribute
mesh.request_face_status();
mesh.request_edge_status();
mesh.request_vertex_status();
// generate vertices // generate vertices
MyMeshWithStatus::VertexHandle vhandle[8]; MyMeshWithStatus::VertexHandle vhandle[8];
@@ -730,7 +735,7 @@ TEST_F(OpenMeshTutorials, deleting_geometry_elements) {
EXPECT_TRUE(ok) << "Cannot write mesh to file 'deleted_output.off'"; EXPECT_TRUE(ok) << "Cannot write mesh to file 'deleted_output.off'";
} }
*/
TEST_F(OpenMeshTutorials, storing_custom_properties) { TEST_F(OpenMeshTutorials, storing_custom_properties) {
MyMesh mesh; MyMesh mesh;