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<DIV><SPAN class=002505721-28082007><FONT face=Arial size=2>Hello
Grassuser,</FONT></SPAN></DIV>
<DIV><SPAN class=002505721-28082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002505721-28082007><FONT face=Arial size=2>I am looking for a
Grass equivalent to Focalmean(grid, ANNULUS, irad, orad) (info at <A
href="http://edndoc.esri.com/arcobjects/9.2/NET/shared/geoprocessing/spatial_analyst_tools/focalmean.htm">http://edndoc.esri.com/arcobjects/9.2/NET/shared/geoprocessing/spatial_analyst_tools/focalmean.htm</A>).
What I ultimately want to do is calculate Topographic Position Index (info at <A
href="http://www.jennessent.com/downloads/TPI-poster-TNC_18x22.pdf">http://www.jennessent.com/downloads/TPI-poster-TNC_18x22.pdf</A>).</FONT></SPAN></DIV>
<DIV><SPAN class=002505721-28082007><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=002505721-28082007><FONT face=Arial
size=2>Bob</FONT></SPAN></DIV>
<DIV><SPAN class=002505721-28082007>
<DIV class=Section1>
<P><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Bob
Moskovitz</SPAN></B> <BR><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Seismic Hazard Zonation
Project</SPAN></B><BR><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">California Geological
Survey</SPAN></B> <BR><B><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'">http://www.conservation.ca.gov/cgs/shzp</SPAN></B><SPAN
style="COLOR: blue"><?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P><SPAN
style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">CONFIDENTIALITY
NOTICE: This communication is intended only for the use of the individual or
entity to which it is addressed. This message contains information from the
State of California, California Geological Survey, which may be privileged,
confidential and exempt from disclosure under applicable law, including the
Electronic Communications Privacy Act. If the reader of this communication is
not the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly
prohibited.</SPAN></P></DIV></SPAN></DIV></BODY></HTML>