<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi Kelly,<DIV>I'm not familiar with your national atlas specific projections, but do you have more details about the LCC projection you are referring to? LCC is a general class of projection that will have some more localised parameters depending on, generally speaking, where you are centering your map. The lat_0/1/2 and lon_0 values might change depending on where you are doing your mapping. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Do you already know the more full description of the LCC projection you have in mind?</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Tyler</DIV><DIV><BR><DIV><DIV>On 24-Jul-06, at 6:49 PM, Kelly Koehn wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">I've been working with mapserver for quite some time now and I thought I'd made some strides in the areas of projections but I seem to have went into it all backwards. I started out with the National Atlas datasets for counties and states. I've come to the conclusion that the projection they want you to use is 'latlong', ellps is 'GRS80', and datum is 'NAD83'. The names are 'statesp020' and 'countyp020' I believe.</SPAN></FONT></DIV><DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">This is all fine and dandy except unless you project the map as LCC it seems to be vertically challenged. For instance, the county that I live in (Sedgwick, in Kansas) is not a rectangle.. its square. I've found some examples of the lat/long to LCC projection but most seem a bit foggy.</SPAN></FONT></DIV><DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">My real question has to do with the whole 'lat/long to meters' conversion and how to make heads or tails of the 'cs2cs' program that supposedly converts the values. Is there some magic trick to this program that I'm not finding? </SPAN></FONT></DIV><DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">I have some other questions about exactly what the lat_0, lat_1, lat_2, lon_0 values should be for the LCC projection but I'll save those for another time.</SPAN></FONT></DIV><DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">Any help would be great! I'm about ready to rip my hair out!</SPAN></FONT></DIV><DIV><FONT face="Arial" size="2"></FONT> </DIV><DIV><FONT face="Arial" size="2"><SPAN class="Apple-style-span" style="font-family: Arial; font-size: 10px; ">Kelly</SPAN></FONT></DIV><DIV> </DIV><BR class="Apple-interchange-newline"></SPAN></BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>