[Geomoose-users] GM 1.6 Identify subset of layer features

[Brent Fraser]

What happens if you set the STATUS OFF for both the parcel layers?  Your 
config should work; I'll have to do a little more digging...

Best Regards,
Brent Fraser


On 12/1/2010 1:59 PM, Brian Welch wrote:
> Thanks Brent,
> My experience with GM 1.6 is that white spaces in layer names kills 
> the Identify process, even if the names in the XML file match the 
> layer map file and the Identify.map layer name. My workaround has been 
> to use underscores for any layers that provide feedback with the 
> Identify tool. It's been a useful way to cue the users that the layer 
> is "Identifiable".
> Since I have many layers in my Identify. map file I've pasted just the 
> two that correspond to the parcels and the colleges (see below message 
> text). Note that both refer to the same shapefile that contains all of 
> the parcels for the region. I don't want to eliminate the college 
> parcels in the generic parcel file since the college layer is one that 
> is off by default (and it's off the Identify tool returns only results 
> for the generic parcel layer). Likewise I wouldn't want to eliminate 
> the college parcels from the generic parcel Identify.map layer since 
> that would still return parcel-specific information.
> My goal is to allow interested users to turn on the college layer and 
> then be able to click college-owned parcels to see additional 
> information related to the college. I don't mind that both the college 
> and generic parcel information shows up in the Information tab (that's 
> actually a good thing!). I just don't want the college data to show up 
> for the non-college parcels, even if the college layer is turned on.
> I had hoped that it would be possible to utilize the underlying 
> generic parcel data for both, but it looks like I'll have to export a 
> separate shapefile for the college overlay in order to get the 
> Identify to differentiate between the underlying parcels and the 
> college parcels. Unless anyone has a new suggestion...
> Thanks!
> Brian
>  LAYER # Rice Co. Parcels Polygon Layer
>   NAME 'RiceCo_Parcels'
>   DATA 'landrecords/RiceCo_parcelsUTM.shp'
>   STATUS ON
>   TYPE POLYGON
>   METADATA
>   qstring_validation_pattern '.'
>   END
>   TEMPLATE 'landrecords/identify_RCparcel.html'
>   TOLERANCE 0
>  END
>  LAYER # Colleges Polygon Layer
>   NAME 'Colleges'
>   DATA './landrecords/RiceCo_parcelsUTM.shp'
>   STATUS ON
>   TYPE POLYGON
>   METADATA
>    qstring_validation_pattern '.'
>   END
>   CLASSITEM 'DEEDHOLD'
>   TEMPLATE './landrecords/identify_Colleges.html'
>   TOLERANCE 0
>   CLASS
>    EXPRESSION /*COLLEGE/
>   END
>  END
> --------
> Brian Welch, GIS Technician
> City of Northfield
> Northfield, MN 55057
> 507-645-3027
>
>
> >>> Brent Fraser <bfraser at geoanalytic.com> 12/1/2010 2:37 PM >>>
> I think GM 1.6 strips the spaces before passing the layer names to 
> mapserver.  So in theory you could have a map title of "My Colleges" 
> in the mapbook and a layer with a name of MyColleges in the mapserver 
> map file.
>
> As for the results problem, it's difficult to say without seeing the 
> entire identify.map (and the <map> defs in the mapbook), but I'd guess 
> you have two layers in your indentify.map: one for college parcels and 
> one for other parcels.  You need to have a class in the the other 
> parcels layer that does not include colleges (basically negate the 
> expression in the college layer)
>
> Best Regards,
> Brent Fraser
>
> On 12/1/2010 1:18 PM, Brian Welch wrote:
>> Some bug-checking did catch a white space in my layer name in the XML 
>> file. That's now been fixed with an underscore so all the layer 
>> references match: XML file, layer map file and Identify.map file. I 
>> get the appropriate Identify results to appear, but they appear for 
>> ALL parcels, not just the college parcels. The attempt to add an 
>> expression that I pasted in my previous post had no effect on the 
>> results: the college data appears for Identify queries of ANY parcel.
>> Is there a way to get the Identify query to mirror the expression 
>> used to create the layer?
>> Thanks.
>> Brian
>> --------
>> Brian Welch, GIS Technician
>> City of Northfield
>> Northfield, MN 55057
>> 507-645-3027
>>
>>
>> >>> Brent Fraser <bfraser at geoanalytic.com> 12/1/2010 11:31 AM >>>
>> Brian,
>>
>>   Couldn't you just use the same layer definition in your 
>> identify.map as you use in your display layer?
>> Best Regards,
>> Brent Fraser
>>
>> On 12/1/2010 8:53 AM, Brian Welch wrote:
>>> I'm using Geomoose v1.6
>>> I have a layer in my application that shows a subset of parcels 
>>> (local college-owned land). The mapping layer in GM uses a simple 
>>> expression based on the property owner's name to map just those 
>>> properties owned by the colleges.
>>> I'd like to create an appropriate layer in the Identify.map file 
>>> that will act only on that subset in order to display specific 
>>> information related to the colleges. However, I don't want the 
>>> college information to show up for all parcels in town. Is there 
>>> some way to replicate the expression that I use in the CLASS call of 
>>> the mapping file to get the LAYER in the Identify.map file to act 
>>> only the college-owned parcels? I can't figure out whether the 
>>> qstring_validation_pattern is where I should focus, and if so, what 
>>> is the appropriate query syntax? The field name is [DEEDHOLD] and 
>>> the query value would be "*COLLEGE" (note the need for a wildcard to 
>>> pick up both colleges in town).
>>> I'd like to know if this is possible by modifying the Identify.map 
>>> layer with an appropriate query or whether I should just take the 
>>> easy way out and create a separate shapefile of college-owned parcels.
>>> Thanks.
>>> Brian
>>> --------
>>> Brian Welch, GIS Technician
>>> City of Northfield
>>> Northfield, MN 55057
>>> 507-645-3027
>>>
>>>
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