CGAL Lab bugs

[MaelRL]

Issue Details

Sorted by estimated amount of work / complexity.

Large

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1. make it possible to zoom arbitrarily close
2. when using orthographic projection, zoom is much shorter
3. Selection item's move point regularly crashes: https://gist.github.com/MaelRL/325d0eed9a351de4af244c44eece5937
4. the delete in Vao() takes a lot of time. See also comment here
5. Selection (graying) is not visible for faces directly orthogonal to the camera or when using orthographic projection
6. More than one selection item is broken
7. Save / Load scene is broken for C3T3 items
8. Fix some operations wrongly being applicable to every item (AW3, Fast distance, etc.)
9. Alpha transparency is broken
10. C3T3 item transparency slider doesn't work
11. Signed distance visualization is broken
12. [Feature request] Show element IDs in a polygon soup (at least vertex / face IDs)
13. Can't use "Selection > Move Point" if "Scale the scene" is being used
14. Move points on non triangulated meshes is a segfault

Medium

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1. [Feature request] Bbox Operation does not exist for different items
2. Affine transformation on deleted item = crash (Affine transformation plugin improvements #7472)
3. Cut planes in gray image visualization should have a border, for example of the same colors as the balls, to ease visualization
4. Affine transformation does not exist for polygon soups (Affine transformation plugin improvements #7472)
5. Inflate mesh with multiple selected items = crash
6. Show Edge IDs, move a vertex with a selection item, it now shows Vertices IDs
7. Plane equation parser (1*x+0*y+0*z-1=0 creates a plane with equation 1*x + 0*y + -4.37114e-08*z + 0 = 0)
8. Select Different Colors for Selected Items should call Reset Colors on the selected items. Issue can be observed if Color Each Connected Components is called first.
9. Reloading an OFF file recenters the view even if "Visiblity changes recenter" is not checked.
10. Allow "tetrahedra filtering" to filter more than one c3t3_item, and keep valid
11. Erasing a face from the mesh via selection item can purge the whole selection (e.g. select vertices, remove a star incident to a selected vertex, everything gets deselected)
12. Reloading resets simplex ID visibility choices
13. Loading a second C3T3 item messes up the choice (show protecting ball, cut plane, ...) of the first C3T3 item
14. "ctrl+space"-induced recentering due to a visibility change, and "ctrl+R"-induced recentering are not the same recentering
15. Take a mesh, color it, clip it, colors are wrong for the new faces (and you can't change the color...?)
16. Extrude FaceGraph's arrow can go out of the visibility box + performing extrusion does not recompute the scene's bbox
17. Visualization of soups of quads is broken (shows holes)
18. Isolated vertices are badly counted or updated? Maybe specific to opening a .obj file?
19. Adding a path of edges in the selection item (usually) results in a segfault
20. Trying to change an item's color while the scene is rotating makes the window unresponsive
21. loading : https://gist.github.com/MaelRL/d7c1b08326f7d0a122352ca6fb5b6257 is a segfault
22. https://gist.github.com/MaelRL/519cce626bea7f4723faef5e1daba9bb + "zoom to index v2" is a segfault

Small

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1. Polyhedron: confusion between using "unnamed" and "unamed" #7051
   Bug CGAL 3D demo +2
   
2. Corefinement creates an (empty) item even if the operation failed
3. "Edge Splitted"
4. After a corefnement Boolean operation we should no longer visualize the two input meshes, or as wireframe.
5. Fix items statistics producing NaNs (like angle averages)
6. Heat Method GUI resets the menu after selecting the vertex sources
7. Choice of the initial color map of the display plugin seems unused
8. Make it possible to have a multi line entry for tetrahedra (like points or polylines) instead of tedious point-by-point
9. Loading "item-0.01.obj" creates an item of name "item-0" (truncating should use the last dot, not the first)
10. Gray out the "Smooth Area" button (Meshing Smoothing) in the GUI if Ceres is not available
11. Autoref on non triangulated mesh = segfault
12. Join polyhedra -> no visibility arrows
13. Mesh_3 on an open surface is a segfault (it should produce a surface mesh (directly call PMP::'s function ?))
14. Deleting the shortest path item deletes the surface mesh item
15. Create New Group while selecting a group creates a group item that isn't a group
16. Why is PMP::self intersection showing up when one compiles the selection plugin
17. Creating a selection item / clicking the "Edition" tab emits "itemchanged" (surface mesh item)
18. Reloading a C3T3 item does not reset the "Show ..." (e.g. "show protecting spheres" remain checked, but protecting spheres aren't shown)
19. C3T3 item: "show protecting spheres" deselects the C3T3 item
20. Recentering recenters too much for point sets (generate a point set, ctrl+R --> too much)
21. C3T3 / tet soup items: selection of colors for interior tets / exterior faces does not follow user-selected colors
22. Removal of control vertices turn them into ROI vertices (deformation)
23. Clear ROI also clears control (deformation)
24. One cannot hide a model being edited (deformation)
25. Shift clicking vertex selection (e.g. in deformation) conflicts with shift cliking for point location
26. Basic generator's generate grid doesn't work for grids in the YZ plane
27. Clipping bbox "reset" button doesn't work if the box is larger than the initial box
28. calling triangulate faces causes a segfault if there are degenerate simplices
29. Harmonize "border" and "boundary" in operations
30. Create Points from a Polylines item is broken and returns 10^-316
31. Loading an OBJ without any face is a segfault
32. reading an OBJ with a "f 0 ..." is a segfault
33. reading an OBJ with "f 1" (single vertex-face is a segfault

[MaelRL]

1. Generate 2 spheres with the demo's generator. Respective radii 1 and 0.5, 4 iterations of subdivision
2. Mesh_3 with no sharp features, facet and cell size 0.03
3. segfault

[afabri]

When remeshing a surface the result should be drawn double sided.

[afabri]

Concerning the inflate I changed it to only work if a single polyhedron item is selected. It should be easy to put a loop around. As an inflated mesh has quickly self intersections I am wondering if the proposed inflate distance should not be a fraction of the average edge length and not a fraction of the bbox diagonal. @sloriot any opinion?

[afabri]

1. Generate 2 spheres with the demo's generator. Respective radii 1 and 0.5, 4 iterations of subdivision

   2. Mesh_3 with no sharp features, facet and cell size 0.03

   3. segfault

Sqrt3 subdivision?

[afabri]

[afabri]

works for me,

[sloriot]

Concerning the inflate I changed it to only work if a single polyhedron item is selected. It should be easy to put a loop around. As an inflated mesh has quickly self intersections I am wondering if the proposed inflate distance should not be a fraction of the average edge length and not a fraction of the bbox diagonal. @sloriot any opinion?

If you mean the default value, the bbox makes more sense. If you want to avoid self-intersections then you are interested in the lfs...

[afabri]

The average angle computation is fixed by #7161