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
The edit-fill feature is the most powerful feature a GIS software can
From: Aniruddha Banerjee [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 31, 2005 1:09 PM
To: [email protected]
Subject: Re: [Maptitude] attaching block group
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
>
>
>
>
>
>
>
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