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Ref Frame as a Child of a Created Ref Frame Centers on the Sun #170

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astrodavid10 opened this issue Oct 20, 2020 · 7 comments
Open

Ref Frame as a Child of a Created Ref Frame Centers on the Sun #170

astrodavid10 opened this issue Oct 20, 2020 · 7 comments
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@astrodavid10
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If I create a reference frame for an asteroid like Bennu and then create a ref frame as a child to show OSIRIS-REx's orbit at Bennu, it centers and scales for the sun instead. See the attached.
OSIRIS-REx.zip

@pkgw
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pkgw commented Oct 21, 2020

Do you think this is a new issue? This seems like the kind of functionality that would have been exercised in the past ..

@astrodavid10
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I don't think that it is new... I'm not sure I had ever put forth good effort to get a new ref frame to have children ref frames with something like a trajectory.

@pkgw
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pkgw commented Dec 3, 2021

Flagged by @astrodavid10 as something to look at for the upcoming release. CC @Carifio24.

@Carifio24
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@astrodavid10 I was looking into this using the example that you gave, but I'm unsure what I should expect to see at these reference frames. If I track Bennu, I see this:
image

When I track OSIRIS-REx, I see:
image

I can pan around and see the trajectory intersecting itself, like this:
image

I'm just curious what I should expect to see at the OSIRIS reference frame.

@astrodavid10
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astrodavid10 commented Feb 2, 2022

@Carifio24 The green are the orbits of OSIRIS-REx around Bennu and they should be attached to Bennu and not the Sun. If you are tracking OSIRIS-REx and zoom out you'll notice that it is residing in the Sun.

@astrodavid10
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@Carifio24 They are the correct shape and scale (or at least close) but are attached as a child of the sun incorrectly.

@Carifio24
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@astrodavid10 Ah, ok. For some reason, I'm actually unable to zoom in or out when tracking either of these layers. I also get the warning that "This file does not seem to be a valid collection", but the layers still appear in the layer manager.

I know that parts of WWTL files are often compressed, so I'm wondering if decompressing the .zip that you attached had some adverse effect. Could you share the (unzipped) layer file?

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