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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: [gislist] create TIN from lidar |
| Date: |
06/09/2005 02:55:01 PM |
| From: |
Brian Russo |
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If it's just a plain TIN (where the vertices correspond to known data
points only) and no interpolation done, it's irrelevant whether you clip
or not.
- bri
Gerald Lee wrote:
> I would create the tin without clipping first. Then I would modify/clip
> the tin with the Farm polygon. I have gotten more realistic results with
> that approach. I convert/import the lidar(.xyz data) into an access
> table then import into SHP or GDB.
>
> Gerald
>
> -----Original Message-----
> From: gislist-bounces@lists.geocomm.com
> [mailto:gislist-bounces@lists.geocomm.com] On Behalf Of GIS GIS
> Sent: Thursday, June 09, 2005 9:55 AM
> To: gislist@lists.geocomm.com: arcgis@lists.directionsmag.com:
> esri-l@esri.com
> Subject: [gislist] create TIN from lidar
>
> hi folks,
>
> I have a farm polygon and I have the lidar data. What I have done is
> clip the lidar data using the farm polygon. I am thinking if I could
> using the clipped lidar data to create a TIN surface. The point
> confused me is that I don't know if I should using the lidar data ONLY
> within the farm boundary or the extended lidar data beyound the farm
> boundary, say to some buffer distance. Anyone could help me out? What
> is the best way to create TIN when you have the lidar data? I am using
> ArcView 3.3.
>
> Thanks a lot.
>
> Xu
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--
Brian Russo <brian@russo-associates.com>
Russo & Associates: Geospatial Services & Solutions
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