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The3rdDimension
The3rdDimension
@bc-surveyor
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Joined: September 21, 2018 9:39 am
Last seen: April 9, 2026 12:52 pm
Topics: 106 / Replies: 176
Topic
Replies: 2
Views: 500
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RE: Looking for a bit of peer review... (error propagation)

?ÿ Version 1 is all done. I may revisit this in a few months with some ideas I have for additional features. ?ÿ ?ÿ ?ÿ

3 years ago
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RE: WEATHER

I'm north of you in Vancouver at the moment, We got 9.5" overnight with more on the way. The site survey I have to do this afternoon should be product...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

@bill93?ÿ ?ÿ I was thinking the same thing.?ÿ Didn't Kent do a pretty exhaustive series of posts back on POB about real world techniques for error e...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

I gave up on the std dev. of the delta hz pos equations. They just weren't making sense to me. Instead I did the coordinate error ellipse at 95% and ...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

The variances of samples drawn from a normal distribution follow the Chi square distribution. Look here for more: 1.3.5.8. Chi-Square Test for the Va...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

I interpreted your single face observation, where you divided by sqrt(0.05) as being a single observation. ?ÿ If the standard deviation of a an inst...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

I often get in trouble with error propagation calculations, so I'll defer to Bill and not comment on the math. But here are two questions from reading...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

?ÿ I think I finally got it... ?ÿ Hz Pos = ƒ?? (ƒ??N)2 + (ƒ??E)2 ?ÿ Using error propagation, we can determine the standard deviation of the rel...

3 years ago
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RE: Looking for a bit of peer review... (error propagation)

Nice looking spreadsheet. I haven't checked any of the formulas. Picky comment: I don't like the label sigma95%.?ÿ Sigma has a usual meaning and is n...

3 years ago
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RE: Manual Error Propagation

It's definitely something along those lines. Whenever I take the sin of an azimuth at or near 90/270 degrees I get a value at or near 1. So when I mul...

4 years ago
Topic
Replies: 6
Views: 1237
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RE: A helpful aid for utilizing point clouds to extract data

@jacob-wall?ÿ ?ÿ Thanks, yea it isn't as feature heavy as Cloudworx unfortunately. But I don't believe you can share your point cloud via a web lin...

4 years ago
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Replies: 35
Views: 2253
Topic
Replies: 5
Views: 1238
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RE: Delivering point clouds to your client?

This looks quite similar to what I shared, not too crazy at $3100/year for 40 projects. $80/project

4 years ago
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RE: Delivering point clouds to your client?

The issue with me doing this is my clients would need recap, the vast majority don't. And tbh Potree seems to have more tools than recap.

4 years ago
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RE: Delivering point clouds to your client?

Are these scanner dependent??ÿ When you say you deliver a recap are you talking about an .rcp file from Autodesk Recap?

4 years ago
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