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open-aerospace / openrocketdoc

A document format for describing sounding rockets.
https://open-aerospace.github.io/openrocketdoc/
GNU General Public License v3.0
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Mass reading errors from .ork file #3

Open sanketdiwale opened 7 years ago

sanketdiwale commented 7 years ago

Hi Nathan,

I noticed a mismatch in the mass of the rocket and its components when reading a open rocket (.ork) file from the openrocketdoc interface and from OpenRocket-15.03.jar itself.

I have provided a minimal example below and attached the .ork file I was reading below.

Minimal Example

import openrocketdoc from openrocketdoc import loaders rocketloader = openrocketdoc.loaders.Openrocket() rocket = rocketloader.load('StarterDesign.ork') print("Rocket Mass:") print(rocket.mass)

Example Output

Rocket Mass: 2.03641177398

Issue

If I open the file with the OpenRocket simulator version 15.03 that can be downloaded from http://openrocket.sourceforge.net/download.html

I see that the mass of the rocket without motor is 2447 grams. Further if I check the mass of the nose cone component in open rocket it is 218 grams while in the openrocketdoc interface it is 0.

Question:

I was wondering if this is a bug or this is the expected behaviour. Further if I have components with overridden mass the loader does not see the overridden component mass either.

Is there some way by which I can get the correct component and rocket mass readings from the .ork file?

Thanks, Sanket

.ork file attached:

StarterDesign.ork.zip