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improvced documentation

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Guillaume Raffy 2022-12-01 16:20:08 +01:00
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README.md
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# grassloper
an application to estimate the slope of a granular surface flow
GRAnular Surface SLOPER: an application to estimate the slope of a granular surface flow
`grassloper` uses the output of [tractrac](https://perso.univ-rennes1.fr/joris.heyman/trac.html).
# how to install
`grassloper` is delivered as a simple pip application, and as such it can be installed from scratch using the following steps:
```sh
# create a python virtual environment (we name it name grassloper.venv)
# create a python virtual environment (we name it grassloper.venv)
bob@stykades:~/work/grassloper$ python3 -m venv grassloper.venv
# activate the virtual environment to use it
bob@stykades:~/work/grassloper$ source ./grassloper.venv/bin/activate

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grassloper/main.py
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#!/usr/bin/env python3
import numpy as np
import cv2
from pathlib import Path
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parser.add_argument('--part-pos-file', type=Path, default=None, required=True, help='the input file containing the particle positions')
parser.add_argument('--results-file', type=Path, default=None, required=True, help='the output file containing for each frame one line fitting the granular surface (hdf5 file format)')
parser.add_argument('--part-pos-file-format', type=str, choices=['tractrac-hdf5'], default='tractrac-hdf5', help='the file format of the input file that contains particle positions')
parser.add_argument('--particle-radius', type=float, required=True, help='the radius of the particles in pixels', default=11)
parser.add_argument('--particle-radius', type=float, required=True, help='the radius of the particles in pixels (make sure that the radius is big enough to unsure that neighbouring particles touch each other)', default=11)
parser.add_argument('--debug-dir', type=Path, default=None, help='where to store image processing debug files')
args = parser.parse_args()
# python3 ./tractrac.git/Python/tractrac.py -f ./grassloper.git/samples/sample002.avi --output 1 -a --saveplot