Latest Contributions by DanPatterson_Retired

If you want a floating point output, then one or both of the inputs need to be floating point, otherwise, integer division is the default.  This is common in many programming languages since it allows you to produce integer output without the need to remove the decimals which is harder ... View more

Integer division, caste one or both of the rasters to a Float ... View more

remove it, rename it, re-add it ... View more

You can use a UTM projection, an Albers, Lambert conformal conic etc etc, there are thousands, so you will need to do some basic reading on projections and/or find out what is the most suitable projection for your area.  Many governments use standardized projections which might give you a start if you study area is small ... View more

I agree, but there is only one coordinate system for the coordinates, long/lat and projected coordinates aren't stored in the same file.  It should operate as the calculate geometry done via the interface.  If you are interested post on the ArcGIS Ideas site   http://ideas.arcgis.com/ ... View more

Project your data and ensure that you X, Y and Z values are in the same units (ie meters or feet), then run the slope tool.  You can't use decimal degree coordinates mixed in with elevations in other units. ... View more

It might be the space in the toolbox name. ... View more

No.   An open debate, but since Python has been adopted by the open-source community as well means that  developers have a common thread between FOSS and commercial software... ... View more

There are "relates", one to many or many to many, but you are suggesting something somewhat different if I am not mistaken, you will need a common field in both tables to do either a join or a relate. ... View more

Pythonwin that comes on your installation CD is probably the standard, Pyscripter is much newer is isn't distributed with Arc but is nice, but lacks script folding which is a nice feature of Pythonwin ... View more

several suggestions 1  type as little as possible in the raster calculator, select available buttons 2  I think x should be * 3  ensure that there are spaces between gridnames and operators, which be automatic if you select buttons 4  Output Raster will fail since there is a space and it is on the wrong side of the equal sign Give some of these ideas a try ... View more

Andrea, have you tried logging onto the forum site then switching over to your listed link?  Also, I think the ArcGIS sites login is case sensitive whereas this forum's user name is not.  It is worth a shot. ... View more

just use a code block and import re into a def http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//005s0000002m000000 ... View more

If you have an ArcInfo license then use Erase http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00080000000m000000 otherwise Union the two files, then manually delete the intersecting area ... View more