miloPlot.py

Overview

This program is intended to be used to generate plots from an OTIS4 plot file using matplotlib.pyplot and numpy.

I wrote this code to facilitate getting trajectory results plotted and inserted in powerpoint and keynote. You might notice that the varible titles change based on the number of subplots along with the number of y gridlines

written by S.W.Paris January 2017

Paris Aerospace Technologies

This is version 0.9

things that still need to be done: expand the titles to include more otis ABLOCK variables add help function(s) python 3 testing other os testing - so far only macOS & Debian Linux better documentation

Dependencies

numpy matplotlib

Installation

You might want to add location of miloPlot.py in your PATH

Running

miloPlot.py is just a python program. There are several ways to run it I always use the terminal (command_line).

option 1 interactive (run from the "terminal")

[yourComputersPrompt]python miloPlot.py

This will launch an interactive session where you will be prompted for the files that contain the data to be plotted. You will also be prompted for the variables to be plotted. An example interactive session is shown in the file interactiveSession.txt

option 2 uses a file of commands to drive the program. This is launched from the terminal as follows

[yourComputersPrompt] python miloPlot.py -f commandsFile

commandFile is just a text file with the following form

inputFile nameOfYourFirstDataFile optionalDatalegend
inputFile nameOfYourNextDataFile  optionalDatalegend
                                - you can repeat this as many times as you like
                                  testing has been limited to 3 files or less
outputFile  nameOfYourOutputPdfFile - this is optional, if you do not specify an
                                    outputfile is is set to miloPlot.pdf
plot xVariableName yVariableName - there can be multiple y variable names
                                   each y variable is plotted on a separate subplot
                                   repeat plot lines for each new plot

Examples of commandFiles are included as commands1.txt and commands2.txt. If you request plots of variables in the commandFile that aren't in the data file, miloPlot just ignores those inputs.

option 3 you can always use a script that contains the interactive commands

This is launched from the terminal as follows

[yourComputersPrompt]python miloPlot.py < script.txt

An example script file is included as script.txt

Also included in the repository are three example data files, which are variations on the Bryson minimum time for a supersonic interceptor trajectory

test1.op1
test2.op1
test3.op1

License

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.

Disclaimer

My python skills are primitive at best, but this code does what I need it to do. It you find it useful great. I'm open to suggestions to make it better.

My "go to" reference for this work was the book: A Student’s Guide to Python for Physical Modeling, by Jesse M. Kinder & Philip Nelson

An awesome quick start for python.

robfalck / miloPlot