Hi Richards, Thanks for the tip. However I never use raster files for overlays/geo-crosstabs. Regards, Rudy B.
On Mar 31, 2005 5:01 PM, Richard Hoskins <[EMAIL PROTECTED]> wrote: > > I can tell you about the raster conversion stuff. If I need to do overlays > at a state-wide scale, several areas within a state, then you cannot do it > with raster files, because you loose geographic resolution if you do the > whole state or you have to do one region at a time. One problem I had was to > do this kind of overlay with hundreds of regions over the census data (at > the same time) . With vector overlay this is quite easy and the variance of > the result is constant. Maptitude has several functions for overlay which > really cannot be done in raster-vector overlay operations. With raster > overlay one will get a different variance for each geographic scale. If you > are doing spatial modeling this is .... not good. > > Dick Hoskins > WA State DOH > Olympia, WA > > > > ________________________________ > From: Aniruddha Banerjee [mailto:[EMAIL PROTECTED] > Sent: Thursday, March 31, 2005 1:09 PM > To: [email protected] > Subject: Re: [Maptitude] attaching block group > > > The edit-fill feature is the most powerful feature a GIS software can > have. E.g. one can find the number of points (e.g. bars) within a > block, or block plus 1 mile buffer, etc. Try doing that in any other > software. Other software require vector-raster conversion before one > can 'edit-fill-aggregate; by-mile etc' queries. Regards, Rudy B. > > > On Tue, 29 Mar 2005 15:06:49 -0700, [EMAIL PROTECTED] > <[EMAIL PROTECTED]> wrote: > > > Amazingly I find many reasonably experienced Maptitude users who do not > > know about it. > > > > Dick. > > > > Both the Tag and the Aggregate functions are buried in to the Edit/Fill > > menu, and available only when a table is active. > > > > However, they are not mere EDIT type of functions. They are powerful > tools > > that can perform very specific geographic Analysis, and I think they > > deserve a more visible location in the Maptitude interface. They may well > > be included under Tools / Geographic Analysis. > > > > At any rate, I think this is one of the very few points in which the > > Maptitude interface is not as intuitive as new users would like it to be. > > > > Cheers > > > > Armando > > > > > > > > > > > > -------- Original Message -------- > > Subject: RE: [Maptitude] attaching block group > > From: "Hoskins, Richard E." <[EMAIL PROTECTED]> > > Date: Tue, March 29, 2005 2:10 pm > > To: "'[email protected]'" <[email protected]> > > > > The "tag" feature is one of the best features in Maptitude. I use it > > practically every day. Other software usually requires several steps to do > > the same thing. Amazingly I find many reasonably experienced Maptitude > users > > who do not know about it. > > > > Dick H > > ________________________________ > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Sent: Monday, March 28, 2005 12:43 PM > > To: [email protected] > > Subject: RE: [Maptitude] attaching block group > > > > > > In the maptitude Help look for fill / tagging. > > > > You will get precise isntructions on how to attach data from one layer to > > records in another layer. > > > > Cheers > > > > Armando > > > > > > > > > > > > -------- Original Message -------- > > Subject: [Maptitude] attaching block group > > From: "Mark Duncan" <[EMAIL PROTECTED]> > > Date: Mon, March 28, 2005 4:46 pm > > To: [email protected] > > > > I have a large geo. file of demographic data by block group and > > another large geo. file of customer data. I would like to attach a > > block group id to each record in my customer file. Can I do this with > > an overlay? Anyone know how? > > thx, > > mark > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > Yahoo! Groups Sponsor > > ADVERTISEMENT > > > > > > Yahoo! Groups Sponsor > > ADVERTISEMENT > > > > ________________________________ > > Yahoo! Groups Links > > > > To visit your group on the web, go to: > > http://groups.yahoo.com/group/Maptitude/ > > > > To unsubscribe from this group, send an email to: > > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > ________________________________ > Yahoo! Groups Links > > > To visit your group on the web, go to: > http://groups.yahoo.com/group/Maptitude/ > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. ------------------------ Yahoo! Groups Sponsor --------------------~--> Has someone you know been affected by illness or disease? Network for Good is THE place to support health awareness efforts! http://us.click.yahoo.com/RzSHvD/UOnJAA/79vVAA/C5grlB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Maptitude/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
