AutoCAD Civil 3D Customization

AutoCAD Civil 3D Customization

25 Posts
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Registered: ‎12-05-2010
Post 1 of 4

Point Clouds - creating isd files

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01-20-2011 12:42 AM



I would like to convert many xyz files, representing point clouds, to the isd files. I have found some dll's dealing with point clouds' objects (see bellow), however I could not find any supporting documentation.

Could you perhaps help me with some sample code in VB.NET or direct me to some useful resources?



These dll's are, in my opinion, related to Point Clouds:


25 Posts
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Registered: ‎12-05-2010
Post 2 of 4

Re: Point Clouds - creating isd files

01-25-2011 05:05 AM in reply to: matejt

Does anyone have any experience working with Point Clouds in .NET?

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Registered: ‎06-08-2007
Post 3 of 4

Re: Point Clouds - creating isd files

11-09-2012 03:49 PM in reply to: matejt

oh now it's almost 2013 and i need to find out this too.


i need to make a program to get the selected boxes and then densify the surface from point cloud.


i am a seasoned programmer but then i haven't tried the above mentioned dll yet and not sure if this is doable. it's actually pretty important.


because right now i have many  those areas needs to densify. for over 300km of lidar surfaces. need to have at least 5m apart points but now i have about 5 billion points already in point cloud (seperate database)


each click takes at least 5-10 minutes to add 1 million points, i have 4 segments of the surfaces in 4 files maybe 100 boundaries to add extra points to. but stupid software only let user pick one at a time. this is pretty important. job is in jeaperdy right now.


Mr Jeff Mishler are you around? help me out on this one.


this is the hardest task i have to do to date.

Civil 3D 2014
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Registered: ‎06-09-2009
Post 4 of 4

Re: Point Clouds - creating isd files

11-13-2012 09:14 PM in reply to: matejt

Hi matejt,


Point Cloud API is exposed only through ObjectARX (C++) and it's part of AutoCAD API. Vertical application like Civil 3D and Map 3D has Point CLoud UI features / tools and capable of performing additional task compared to AutoCAD Point cloud tool, but there is no API exposed for the same. There was a sample in ADN website on AutoCAD Point cloud API using ARX and by Googling you might see some relevant blog post on the same subject.



Partha Sarkar
Developer Technical Services
Autodesk Developer Network

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