ArcMap 10 Limit Points Create TIN

[WilliamPlatt]

Hello All, I'm trying to create a TIN from a mulipoint feature class.  I remember in 9.3 you could limit the points by distance between them.  I cannot find that option anywhere using 10.  Can someone tell me how to do this?

Thanks

[KhalidDuri1]

Hello William,

This can be done with the Delineate TIN Data Area tool in the ArcToolbox > 3D Analyst Tools > TIN Management toolset.

Regards,
Khalid

[WilliamPlatt]

The "Delineate TIN Data Area" removes triangles that are larger than "Maximum Length Edge".  What I want to do is lower the "resolution" of the TIN.  For example, I have point data with a distance between them of 6 inches.  My system can't handle all of those points.  So I want to create a TIN that has a 12 inch "resolution", only using half of the points.  If I remember correctly in 9.3 there was a setting that you could change this when creating a TIN through ArcMap.  I cannot find anything like this in 10.0. 

Thanks

[WilliamPlatt]

I have found the "Decimate TIN" tool.  This takes an input TIN and lowers the "resolution" by the Z Tolerance or by Count.  This would help if I had a TIN created already that had all of my points in it.  However, my problem is that I have too more data points than a single TIN can hold.  I haven't found a tool yet that lets me combine two TINS.  Anyone know of such a tool?  In the mean time I will keep searching.

Thanks

Will

[WilliamPlatt]

The only thing I have found is to create a terrain and then export a TIN from that.  It is a pain not to have the option when creating a TIN, but it worked for me.