Question: So I have a polygon feature classes with unique identifying names to them that I want to use to rename some other feature classes that are of the point feature type and have the same geography of one of the matching polygon feature classes. Basically the points from the second feature class fit within the polygon feature class. The point feature class has no name identify to it so I would like to change that and add at least part of the name of the polygon feature class to the name based on that fact they share the same geography. 

I was thinking I could use the Select by Location tool but the problem is I basically just have a bunch of unnamed point feature classes in a folder so it's not like I can select individual feature classes. So some how I need to iterate thru all point feature classes and rename them based on the polygon feature class they match up to. I'm guessing I may use Arcpy to do this. Any help or direction would be appreciated.

Answer: 
Cartographic rules to represent the relief as contours are presented in [Imhof's famous book on relief representation, chapter C](http://esripress.esri.com/display/index.cfm?fuseaction=display&websiteID=118&moduleID=1). Some of these rules are given on [this wikipedia page](http://en.wikipedia.org/wiki/Cartographic_relief_depiction#Contour_lines). The main recommendation when simplifying contours it to preserve the terrain main characteristics.

Smoothing the contours independently do not prevent them to overlap: It is advised to smooth the DTM first. A traditional Gaussian smoothing with a suitable parameter depending on the target resolution allows to erase the small details. A drawback is that DTM smoothing fills the valleys and depressions, and flattens the ridges and peaks. Using the douglass-peucker filter algorithm like [in this paper](http://www.isprs.org/proceedings/XXXVII/congress/1_pdf/129.pdf) may be a solution. There are also [number of methods](http://www.citeulike.org/user/jgaffuri/tag/contour) based on the use of contour smoothing algorithms constrained by the drainage network or a skeleton. Finally, to prevent the contours to overlap in sloppy parts, it is possible [to erase them locally](http://www.geos.ed.ac.uk/homes/wam/MackSteven2006.pdf) or also [deform them](http://icaci.org/documents/ICC_proceedings/ICC2009/html/refer/19_2.pdf).
There is a easy way using gdal\_contour. After setting all option in the dialog window you can then edit the command line and instead the "-i interval" you can use fixed levels "-fl levels". Like the image shows bellow. You can check other options here <http://www.gdal.org/gdal_contour.html>

[![enter image description here](https://i.stack.imgur.com/H2Pta.png)](https://i.stack.imgur.com/H2Pta.png)