A Graphical User Interface to the OrbitPy and InstruPy packages.
Requires: Unix-like operating system (requirement of orbitpy), python 3.8, pip, orbitpy, instrupy, cartopy, metpy and scipy.
CartoPy must be first installed separately. Note that CartoPy has several dependencies whose installation procedure may be different depending on the underlying operating system. Please check here
If conda is being utilized, then CartoPy installation is simple and can be done using the command:
conda install -c conda-forge cartopy
After CartoPy installation, run the following command in the main repo directory:
make
Run the application using the following command from terminal:
python bin/eosimapp.py
CesiumJs is used for producing 3D animations. Please see the 'Cesium App' for details on updating access token and the link to the Cesium script.
In some cases, runtime errors involving the numpy package such as the one below may ensue:
module compiled against API version 0xf but this version of numpy is 0xe
This may be due to incompatile numpy package installation. Please run the below command to fix it:
pip install numpy --upgrade --ignore-installed
The following error is also related to the numpy error described above:
ImportError: you must compile the Fortran code first. f2py -m lowtran7 -c lowtran7.f numpy.core.multiarray failed to import
It occurs when eosim-gui tries to import the instrupy package.
Further the instrupy package tests also fail after the eosim-gui package installation.
The error can be fixed by re-installing numpy with the command given above.
If Windows Subsystem for Linux 2 (WSL2) is being used, the animation display using CesiumJs does not work properly. The following error is displayed:
tcgetpgrp failed: Not a tty
Running the following command removes the error (atleast from display) (See here).
export BROWSER="/mnt/c/path/to/browser.exe"
Example:
export BROWSER="/mnt/c/Program Files/Google/Chrome/Application/chrome.exe"
The Cesium JavaScript app is based on the showcased example of Cesium features in the cesium-workshop repository. It is contained in the .\cesium_app\ folder.
The original index.html file has been modified, while the original cesium-workshop index.html file has been retained under the name
workshop_index.html.
A new eosimApp.js javascript source file has been added (based on the available App.js source file). This source file is the one being executed. (Refer to <script src="Source/eosimApp.js"></script> in the index.html file.)
The interface with this app is through CZML files. A new CZML file is produced based on the mission processed in EOSim. This file is saved in the
location cesium_app/Source/SampleData/.
The simple.czml file in cesium_app/Source/SampleData/ is a new addition which was not there in the cesium-workshop repo.
Note: The cesium-app needs to be updated each time a new version is released by updating the <script src=> and the <link href=>
tags in the 'cesium_app/index.html` file.
Note: A access token must be specified in the eosimApp.js file. A free token can be obtained by registering at https://cesium.com
- TODO: Add facility to input user Access-token. Current version relies on the default Cesium token.
Documentation about the code base is available in the docs/eosim-gui_codebase.pptx presentation.
The Commands File Schema.docx contains the schema definition for the commands file which can be used to animate spacecraft operations.
The file structure is as below:
│ .gitignore
│ debug.log
│ LICENSE
│ Makefile
│ README.md
│ setup.py
│
│
├───bin
│ eosimapp.py
│
├───cesium_app
│ │ .gitignore
│ │ index.css
│ │ index.html
│ │ LICENSE.md
│ │ package-lock.json
│ │ package.json
│ │ README.md
│ │ server.js
│ │ workshop_index.html
│ │
│ └───Source
│ │ App.js
│ │ AppSkeleton.js
│ │ eosimApp.js
│ │
│ ├───Images
│ │ ajax-loader.gif
│ │
│ └───SampleData
│ │ eosim_data.czml
│ │ sampleFlight.czml
│ │ sampleGeocacheLocations.kml
│ │ sampleNeighborhoods.geojson
│ │ simple.czml
│ │ testdata.czml
│ │
│ └───Models
│ CesiumDrone.gltf
│
├───docs
│ codebase_description.pptx
│ Commands File Schema.docx
│
├───eosim
│ config.py
│ __init__.py
│
├───gui
│ executeframe.py
│ helpwindow.py
│ mainapplication.py
│ mapprojections.py
│ welcomeframe.py
│ __init__.py
│
├───configure
│ │ cfconstellation.py
│ │ cfcoverage.py
│ │ cfframe.py
│ │ cfgroundstation.py
│ │ cfintersatellitecomm.py
│ │ cfmission.py
│ │ cfpropagate.py
│ │ cfsatellite.py
│ │ cfsensor.py
│ │ __init__.py
│
├───help
│ cone_maneuver.png
│ help_database.json
│ mercator_proj.png
│ rollonly_maneuver.png
│
├───operations
│ │ operationsframe.py
│ │ __init__.py
│
│
├───visualize
│ insightsframe.py
│ vis2dframe.py
│ visglobeframe.py
│ vismapframe.py
│ visualizeframe.py
│ __init__.py
│
├───czml_templates
│ clock_template.json
│ contacts_template.json
│ covgrid_pkt_template.json
│ ground_station_template.json
│ observed_gp_template.json
│ satellite_template.json
Copyright 2021 Bay Area Environmental Research Institute
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
This work has been funded by grants from the National Aeronautics and Space Administration (NASA) Earth Science Technology Office (ESTO) through the Advanced Information Systems Technology (AIST) Program.
EOSim uses:
- CesiumJS (https://cesium.com/cesiumjs/)
- cesium-workshop (https://github.com/CesiumGS/cesium-workshop)
Please contact Vinay (vinay.ravindra@nasa.gov)