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ftk's Issues

Question about compile in win10

Hello, thanks for your work!
I am trying to use it as c++ library on win10, but I find that there are several head files that dependent on Linux. Thus, I am wondering is this code only for Linux and is there any simple recipe to transplant it to Windows?

Build in windows

How to build paraview plugins in windows system? Thanks for work!

Using the connected_component feature with the CLI

Hi,

I'm working on Connected Component Labeling (CCL) in massive distributed setting and I have found your work https://arxiv.org/abs/2003.02351 very interesting. So I wanted to try ftk via the CLI before trying to use it as a library to perform CCL, but I'm stumbling into some minor issues that you could may be help me to solve.

I have installed the master version of ftk with spack:

$ spack install --add ftk@master +mpi +vtk ^[email protected]

I have a file my_file.vti that contain 3D data with 4 scalar fields and a vector field of 3 components. One of this scalars field is named "contribution" and I want to identify each group of voxels that have a value above 1.

This look like an undocumented use of ftk so I have try several options of ftk that look promising to me such as: -f connected_component, --threshold 1.0, --var contribution, --output-type discrete|sliced but none of the combination that have tried seams to work.

Here are the two most illustrative examples of my problem:

$ ftk -f connected_component -i my_file.vti -n 1 --var contribution --output test.vtp

produced the following output:

[FTK FATAL] VTK variable not found
Obtained 7 stack frames.
ftk(_ZN3ftk15print_backtraceEv+0x2c) [0x55f680772acc]
ftk(_ZN3ftk5fatalEiNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE+0x81) [0x55f680777c21]
ftk(+0x19790b) [0x55f68089a90b]
ftk(+0x59bd7) [0x55f68075cbd7]
ftk(+0x3236a) [0x55f68073536a]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f0c056d9083]
ftk(+0x3266e) [0x55f68073566e]

and without the option --var:

$ ftk -f connected_component -i my_file.vti -n 1 --output test.vtp

I have this output:

terminate called after throwing an instance of 'std::logic_error'
  what():  basic_string::_M_construct null not valid
*** Process received signal ***
Signal: Aborted (6)
Signal code:  (-6)
[ 0] /lib/x86_64-linux-gnu/libpthread.so.0(+0x14420)[0x7f181c636420]
[ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb)[0x7f181bdf700b]
[ 2] /lib/x86_64-linux-gnu/libc.so.6(abort+0x12b)[0x7f181bdd6859]
[ 3] /home/user/software/spack/opt/spack/linux/gcc-9.4.0/gcc-runtime-9.4.0-tu4d4s4qlhsu3r73sgs2ta7gkecvv24m/lib/libstdc++.so.6(+0x9e8d1)[0x7f181c1b08d1]
[ 4] /home/user/software/spack/opt/spack/linux/gcc-9.4.0/gcc-runtime-9.4.0-tu4d4s4qlhsu3r73sgs2ta7gkecvv24m/lib/libstdc++.so.6(+0xaa37c)[0x7f181c1bc37c]
[ 5] /home/user/software/spack/opt/spack/linux/gcc-9.4.0/gcc-runtime-9.4.0-tu4d4s4qlhsu3r73sgs2ta7gkecvv24m/lib/libstdc++.so.6(+0xaa3e7)[0x7f181c1bc3e7]
[ 6] /home/user/software/spack/opt/spack/linux/gcc-9.4.0/gcc-runtime-9.4.0-tu4d4s4qlhsu3r73sgs2ta7gkecvv24m/lib/libstdc++.so.6(+0xaa699)[0x7f181c1bc699]
[ 7] /home/user/software/spack/opt/spack/linux/gcc-9.4.0/gcc-runtime-9.4.0-tu4d4s4qlhsu3r73sgs2ta7gkecvv24m/lib/libstdc++.so.6(_ZSt19__throw_logic_errorPKc+0x41)[0x7f181c1b31dc]
[ 8] ftk(+0x3387b)[0x56181c1ac87b]
[ 9] ftk(+0x1971de)[0x56181c3101de]
[10] ftk(+0x59bd7)[0x56181c1d2bd7]
[11] ftk(+0x3236a)[0x56181c1ab36a]
[12] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x7f181bdd8083]
[13] ftk(+0x3266e)[0x56181c1ab66e]
*** End of error message ***
Abandon (core dumped)

Thanks in advance,
Killian

Tracking custom entities

Hello,

I recently came across this project, and it looks quite interesting!

We have developed a methodology to identify certain features in climate data
https://bitbucket.org/vgl_iisc/rossby-wave-packet-identification/src/master/

and we would like to see if we could use ftk to track the features we identify.
Unlike the typical use-case that ftk describes in the accompanying paper,
our objects comprises of multiple critical points per feature. (See Figure 2
in our paper)

Does FTK have an API to which we can provide the features we identify (typically
clusters of critical points or graphs) and track them across time?

TIA,
Joy

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