[talk-au] Brisbane river

Ross info at 4x4falcon.com
Mon Jul 20 22:49:41 UTC 2015


Good.

Cheers
Ross


On 21/07/15 06:35, Phillip and Kerrie wrote:
> Thank you Ross for the pointer about my tool chain.
>
> I have now found a much more comprehensive import tool set and am able 
> to produce the picture that I am looking for.
>
> On 20 July 2015 at 16:26, Phillip and Kerrie <philkez at gmail.com 
> <mailto:philkez at gmail.com>> wrote:
>
>     Thanks,
>     I will now go away and look into using a different tool set to get
>     the data into QGIS.
>
>     On 20 July 2015 at 15:51, Ross <info at 4x4falcon.com
>     <mailto:info at 4x4falcon.com>> wrote:
>
>         Ok.
>
>         So looking at this:
>
>         http://www.openstreetmap.org/relation/1693549
>
>         The riverbank multipolygon is closed otherwise this would not
>         render.  It is a relation made up of 5 ways.
>
>         Are you sure you are loading all the data?
>
>         There are also limits on how many nodes you can have in a way,
>         that's why larger lakes rivers etc are made up of numerous
>         ways in a multipolygon relation.
>
>         I'd suggest rather than changing the osm data you modify the
>         data in QGIS and then generate the map.
>
>         Cheers
>         Ross
>
>
>
>
>
>         On 20/07/15 13:52, Phillip and Kerrie wrote:
>>         yes I would just be closing the river bank ways.
>>
>>         And yes I am tagging for the renderer. I am making maps for
>>         my employer, in QGIS and mapinfo, and wanted to use the OMS
>>         data imported as lines and polygons as part of my background.
>>
>>         For this to work with the QGIS importer the river banks need
>>         to be closed so as to become polygons.
>>
>>         Phillip Shelton
>>
>>         On 20 July 2015 at 13:40, Ross <info at 4x4falcon.com
>>         <mailto:info at 4x4falcon.com>> wrote:
>>
>>             Guess it depends on how you go about this.
>>
>>             I'm guessing that you intend to create
>>             waterway=riverbank[1] multipolygons for the rivers and
>>             leave the waterway=river[2] in place marking the
>>             centerline of the river.
>>
>>             If so  should not be a problem.
>>
>>             Be careful that you are not tagging for the renderer
>>             though. As this:
>>
>>             "Having the wide rivers as closed objects means that
>>             waterways import as polygons and that makes making good
>>             looking maps easier."
>>
>>             sounds very much like manipulating the data to create the
>>             output you want.
>>
>>             Cheers
>>             Ross
>>
>>
>>             [1]http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driverbank
>>             [2]http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driver
>>
>>
>>             On 20/07/15 13:17, Phillip and Kerrie wrote:
>>>             HI,
>>>
>>>             I recently downloaded the openstreetmap data for parts
>>>             of South East Queensland.  When I imported this data
>>>             into GIS, I found that the waterways were not always
>>>             closed objects. Having the wide rivers as closed objects
>>>             means that waterways import as polygons and that makes
>>>             making good looking maps easier.
>>>
>>>             Would I be stepping on anyone's toes if I closed the
>>>             waterway ways on the wider rivers in SEQ?
>>>
>>>             Phillip Shelton
>>>
>>>
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>>
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>>
>>
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