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Hohmann Transfer Orbit


eetu

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Hullo.

I've been wanting to do something less-commercial educational work, and I feel

like H would be a perfect tool for stuff like that. Just to practice I started to build

a scene to visualize "optimal" transfer orbits. It's still a bit physically incorrect, angular

velocities are wrong and launch timing too. I'd also like to add vector visualizations

to show the location and magnitude of the needed burns.

hohmann.png

screencap

There's nothing especially clever going on, the math ain't heavy either. The toughest

thing was to get an ellipse to touch two known points with one focal point at the sun,

but by adding some limitations to the scene it wasn't too hard ;)

As a side note I LOVE how we can now add our own parameters anywhere on the

nodes and not just on a spare panel!

h9param.png

eetu.

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I've been wanting to do something less-commercial educational work, and I feel

like H would be a perfect tool for stuff like that.

Yep, I've been doing educational games this year and I have to say that is very gratifying. And Houdini always come into my mind with it's flexibilities and power.

As a side note I LOVE how we can now add our own parameters anywhere on the

nodes and not just on a spare panel!

That is good to hear, I haven't had much time to play with v9, but I hated to have to use the spare panel on earlier version.

Keep up with the good work!

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As a side note I LOVE how we can now add our own parameters anywhere on the

nodes and not just on a spare panel!

Good to know and will be extremely useful BUT from the screenshot you provide it will also be confusing as there is no indication what is a default parameter and what is added by the user. It would be good to have something as simple as a different color for the user-added parameters so we can tell them apart from the defaults.

j

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Good to know and will be extremely useful BUT from the screenshot you provide it will also be confusing as there is no indication what is a default parameter and what is added by the user. It would be good to have something as simple as a different color for the user-added parameters so we can tell them apart from the defaults.

j

afaik there, in fact, are, different ways the defaults and changed params are visualized (bold and normal font). Same as anywhere else in Houdini (Edit Parameters Interface->Channels->Defaults)

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