TopoDOT or Terrascan?

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soranan
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TopoDOT or Terrascan?

Post by soranan » Wed Nov 07, 2018 1:21 pm

Hi everyone

I wanted to hear your opinions on which software to use for vectorising points, lines, etc. from a point cloud which comes from a Laser scanner.
TopoDOT and Terrascan are two options which after my opinion can handle our needs. Let me specify our needs in detail:
Our main purpose is to vectorize data from road scannings (Pavements, curbs (front and back), surface changes, building facades in 2D, manholes, gullies, street signs, lamps etc.)
We are using Microstation as CAD-software.
Note that we do not need registration of point cloud, since it is already done.

Which software can you recommend (TopoDOTT or TerraScan), and what is your experiences with them? Pros and cons.

Thank you very much in advance.

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JLarson
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Re: TopoDOT or Terrascan?

Post by JLarson » Wed Nov 07, 2018 3:22 pm

If you desired deliverable is a topo drawing in Microstation: TopoDOT is the best tool in my opinion. Terrascan has some great features for classifying point clouds, but for actually getting a drawing out the other end, TopoDOT has a whole suite of tools that get you straight to the end product.
Jason Larson, PLS
NAIK Consulting Group
New York, NY

brian715
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Re: TopoDOT or Terrascan?

Post by brian715 » Wed Nov 07, 2018 10:42 pm

JLarson wrote:
Wed Nov 07, 2018 3:22 pm
If you desired deliverable is a topo drawing in Microstation: TopoDOT is the best tool in my opinion. Terrascan has some great features for classifying point clouds, but for actually getting a drawing out the other end, TopoDOT has a whole suite of tools that get you straight to the end product.
+1 for TopoDOT

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James Hall
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Re: TopoDOT or Terrascan?

Post by James Hall » Sun Dec 09, 2018 3:44 pm

TopoDOT

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hakkilhe
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Re: TopoDOT or Terrascan?

Post by hakkilhe » Mon Dec 10, 2018 8:11 am

soranan wrote:
Wed Nov 07, 2018 1:21 pm
Our main purpose is to vectorize data from road scannings (Pavements, curbs (front and back), surface changes, building facades in 2D, manholes, gullies, street signs, lamps etc.)
I've done all those with TerraScan, using both mobile and UAV point cloud data. For some elements you can use automatic (wires, posts, painted lines etc) or semiautomatic procedures, some need lots of manual work. And as JLarson said already, it's great for point cloud classifications. Feature extraction is much more faster and succesfull when you have well classified point clouds.

I also like the possibility of greating your own macros for different kind of purposes and then you can run them for huge amount of data.

About cons, TerraScan isn't the easiest software to use and needs much training (or at least I needed), before you can use it effectively.
Then, I think that's same with almost all softwares. But when you get used to it, possibilities are almost unlimited.

Though, I have no experience with TopoDOT, so can't say if it's better or not.
Heikki Häkkilä
Laser Scanning Manager / Vitomittaus Oy, Finland
heikki.hakkila[at]vitomittaus.fi / www.vitomittaus.fi

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