PLY point clouds without a mesh crash the program

[parkerlreed]

Describe the bug
When trying to open a PLY that is just a colored point cloud, F3D says there's no faces, but also crashes.

This is generated from RTAB-Map's default export options. RTAB-Map's viewer is also VTK so I believe this should work.

To Reproduce
Steps to reproduce the behavior:

1. Open the file f3d dog.ply
2. Observe crash

Expected behavior
A graceful exit at least (possibly supporting this type of PLY)

System Information:

• OS: Arch Linux
• GPU and GPU driver: 780M AMDGPU

F3D Information

F3D 3.0.0

F3D - A fast and minimalist 3D viewer
Version: 3.0.0-RC3-9-g8d72f2d0.
Build date: 2025-01-15 15:07:23.
Build system: Linux 64-bits.
Compiler: GNU 14.2.1.
Module ImGui: ON.
Module OpenEXR: ON.
Module Raytracing: ON.
VTK version: 9.4.1.
Copyright (C) 2019-2021 Kitware SAS.
Copyright (C) 2021-2024 Michael Migliore, Mathieu Westphal.
License BSD-3-Clause.

Additional context

[parker@parker-framework RTAB-Map]$ f3d dog.ply 
Warning:  Can't find property 'vertex_indices' in element 'face'
free(): double free detected in tcache 2
Aborted (core dumped)

File

dog.zip

[mwestphal]

Stack trace:

(gdb) bt
#0  0x00007ffff76a53f4 in ?? () from /usr/lib/libc.so.6
#1  0x00007ffff764c120 in raise () from /usr/lib/libc.so.6
#2  0x00007ffff76334c3 in abort () from /usr/lib/libc.so.6
#3  0x00007ffff7634354 in ?? () from /usr/lib/libc.so.6
#4  0x00007ffff76af765 in ?? () from /usr/lib/libc.so.6
#5  0x00007ffff76b1e1f in ?? () from /usr/lib/libc.so.6
#6  0x00007ffff76b45ce in free () from /usr/lib/libc.so.6
#7  0x00007ffff74e2426 in vtkPLY::ply_close (plyfile=0x5555561f2c40) at /home/glow/dev/vtk/vtk1/src/IO/PLY/vtkPLY.cxx:1365
#8  0x00007ffff74ead2a in vtkPLYReader::RequestData (this=0x555555c9bf60, outputVector=0x55555617e310) at /home/glow/dev/vtk/vtk1/src/IO/PLY/vtkPLYReader.cxx:622
#9  0x00007ffff1ebe248 in vtkPolyDataAlgorithm::ProcessRequest (this=0x555555c9bf60, request=0x5555561e9ea0, inputVector=0x0, outputVector=0x55555617e310) at /home/glow/dev/vtk/vtk1/src/Common/ExecutionModel/vtkPolyDataAlgorithm.cxx:76
#10 0x00007ffff1e8e445 in vtkExecutive::CallAlgorithm (this=0x55555617f2c0, request=0x5555561e9ea0, direction=1, inInfo=0x0, outInfo=0x55555617e310) at /home/glow/dev/vtk/vtk1/src/Common/ExecutionModel/vtkExecutive.cxx:723
#11 0x00007ffff1e7fe5e in vtkDemandDrivenPipeline::ExecuteData (this=0x55555617f2c0, request=0x5555561e9ea0, inInfo=0x0, outInfo=0x55555617e310) at /home/glow/dev/vtk/vtk1/src/Common/ExecutionModel/vtkDemandDrivenPipeline.cxx:450

[mwestphal]

I think there is two issues here:

1. Unable to read this file for some reason
2. Crash on closing the file because PLY reader does not cleanup correctly