[Qgis-user] Looking for a suggestion on a vector format

[Randal Hale]

If we're both thinking of this the same way - no. Typically QGIS is a 
container for one project (your qgs file). So if you had two approach 
maps - that's two projects. Although you could come up with a structure 
to your data/directories to somewhat make that happen. I can't think of 
any software off the top of my head that allows for multiple projects to 
be nested together.

Well - let me back up. You can have multiple map composer sessions in 
one QGIS Project. So that may get you closer to what you want. I had a 
similar problem and then created one qgs project per area (in other 
words one database with 1 project and 18 areas of interest so I had 18 
qgs files).

I was looking back and Nicolas had a good suggestion with spatialite. 
Spatialite isn't as complicated and is one file. Potentially you would 
only have two files to worry with - but a database like 
postgresql/postgis might be more robust.



On 12/18/2015 11:33 AM, Jesse McGraw wrote:
> Even though I'd prefer one file per procedure, a QGIS project + a 
> database would probably be an acceptable compromise.
>
> However, how could I then add that new project file to an existing 
> project as a new layer?  Is there a concept in QGIS of sub projects?
>
> On 12/18/2015 10:01 AM, Randal Hale wrote:
>> Ye gads...
>>
>> Well....I would say no to shapefiles.
>> Spatialite would work - probably postgis would be better.
>>
>> You could contain your project in one QGIS File - for instance I'm 
>> story an entire project in postgis and am retrieving various 
>> components through about 20 qgs files. All the annotation etc is 
>> stored in the qgs file, all labels, line colors, and map layouts. All 
>> the data is stored in PostGIS.
>>
>> Of course that's a much larger discussion than my simple few 
>> sentences - but I think if you want everything stand alone.....eh - 
>> it's going to have to be at least two components or QGIS/<file 
>> format> of some sort. I think there will always be some external 
>> querying (be it automatic or manual)....of I'm understanding it all 
>> correctly.
>>
>> ...and I just looked at your example and that's a head scratcher. I 
>> think QGIS with Atlas to pull from the database automatically maybe a 
>> better train of thought.
>>
>> I just wanted to say Good Luck, We're all counting on you.
>>
>> Randy
>>
>> On 12/18/2015 09:14 AM, Jesse McGraw wrote:
>>> All,
>>>   Before I go too far down the wrong path perhaps you can help me 
>>> with a suggestion on a vector format to use for a project of mine:
>>>
>>> I'm to looking to basically re-create various Instrument Approach 
>>> Procedure plates (see here 
>>> <http://aeronav.faa.gov/d-tpp/1513/00375il28r.pdf> for an example 
>>> for San Francisco International - SFO ) from a database via a perl 
>>> script and display a number of them as vector overlays in an 
>>> existing QGIS project
>>>
>>> What would be a good format to use for this purpose?
>>>
>>> I'm imagining something like a QGIS project file, but I want it to 
>>> contain to contain all of the various bits of information internally 
>>> (coordinates, names, styling, icons etc.) and not have to query 
>>> anything external so each file is a stand-alone unit.
>>>
>>> Ideally all of the coordinates would be real world lon/lat so no 
>>> transformation would be required.  Bonus points if the format is 
>>> openly standardized and easy to work with
>>>
>>> DWG/DXF?  SVG?
>>>
>>> Thanks,
>>>   Jesse
>>>
>>>
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>>
>> -- 
>> -----------------
>> Randal Hale
>> North River Geographic Systems, Inc
>> http://www.northrivergeographic.com
>> 423.653.3611rjhale at northrivergeographic.com
>> twitter:rjhalehttp://about.me/rjhale
>> http://www.northrivergeographic.com/introduction-to-quantum-gis
>> Southeast OSGEO:http://wiki.osgeo.org/wiki/Southeast_US
>

-- 
-----------------
Randal Hale
North River Geographic Systems, Inc
http://www.northrivergeographic.com
423.653.3611 rjhale at northrivergeographic.com
twitter:rjhale     http://about.me/rjhale
http://www.northrivergeographic.com/introduction-to-quantum-gis
Southeast OSGEO: http://wiki.osgeo.org/wiki/Southeast_US

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