Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

Hi I have Lidar data in ee0 files (interchange files). Can i ovaerlay them on some maps like say Bing Maps or Geoserver with Open Layers? If yes whats the right way of doing it?

Thanks

share|improve this question
1  
Shapefile or even better a database (like postgres) –  Mapperz Jun 21 '11 at 20:37
    
Yes eventually that will be the way. And i know how to render shapefiles. Problem is i am new to lidar data. So I need some solutions to work with Lidar. To get it into database or shapefiles. Is the GeoTIFF an option too?? Also when you say a shapefile/db, will it be a points shapefile/db? wont it be too intensive if i try to render high resolution lidar data of say entire texas? –  Shaunak Jun 21 '11 at 20:41
    
The Database can be a big as you like - it's the end application that will choke - Bing or Google Maps are limited on the number of features (without clustering). Lidar data will be too intensive for large area for web mapping –  Mapperz Jun 21 '11 at 20:44
    
so what are my options to show some elevation overlays on my maps? –  Shaunak Jun 21 '11 at 20:52
    
You will need to do some select (maybe random) filtering to limit the amount of data. –  Mapperz Jun 22 '11 at 14:07

1 Answer 1

up vote 2 down vote accepted

Your first step is to convert the e00 file to something useful - see http://freegeographytools.com/2007/converting-e00-vector-data-to-shapefiles-a-free-and-fairly-painless-approach for details if you don't have access to ArcToolBox.

share|improve this answer
    
that sounds like a good start. Say i get the ee0 files in a shapefiles or even a database. Even then, the data i have is of very high resolution and a very large area. If i try to render the points from shapefiles on the map it will be too slow. How do people usually show elevation models on maps? –  Shaunak Jun 21 '11 at 20:59
    
Usually as a GeoTiff through GeoServer (but try the shapefile anyway see jgrasstechtips.blogspot.com/2011/06/…) –  iant Jun 21 '11 at 21:01
    
You can restricting your elevation data to a single return, instead of taking all return values into consideration. Even better if you can take, say, 20% of the sample value, which will reduce amount of data and maintain a "general" elevation picture. There are tools available to extract n% data out of a LIDAR sample (see this tool, and this too). –  ujjwalesri Jun 22 '11 at 5:58

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.