[Qgis-user] Road network download

Etienne Trimaille etienne.trimaille at gmail.com
Fri May 4 12:27:25 PDT 2018


For instance, you can use the field calculator to clean some values in the
'oneway' column.
You can also display an arrow on the line if the field oneway=yes

2018-05-04 15:22 GMT-04:00 Xristos Xristoou <saxri89 at gmail.com>:

> Thank you!  How to do that ? Pre processing?
>
>
> Στις Παρ, 4 Μαΐ 2018 - 22:19 ο χρήστης Etienne Trimaille <
> etienne.trimaille at gmail.com> έγραψε:
>
>> Values are written in the link I put about -1, 1, yes. Often, with OSM
>> data, you need some pre-processing to clean all these values. It's based on
>> the direction of the line.
>>
>> Maybe shapefiles from geofabrik are cleaner?
>>
>> 2018-05-04 13:24 GMT-04:00 Xristos Xristoou <saxri89 at gmail.com>:
>>
>>> I have oneway field with value -1,1,yes and no .but that values is in
>>> lines and i cant understand connections for oneways
>>>
>>>
>>> Στις Παρ, 4 Μαΐ 2018 - 20:19 ο χρήστης Etienne Trimaille <
>>> etienne.trimaille at gmail.com> έγραψε:
>>>
>>>> Sorry, I fail to understand. With OSM data in QGIS, you have the
>>>> 'oneway' column in the attribute table. If the field is empty, it means
>>>> either OSM doesn't have data for that road or by default it's not oneway.
>>>>
>>>> https://wiki.openstreetmap.org/wiki/Key:oneway oneway=no is the
>>>> default so OSM contributors let this field empty. (only to avoid a
>>>> confusion in some areas).
>>>>
>>>> 2018-05-04 13:10 GMT-04:00 Xristos Xristoou <saxri89 at gmail.com>:
>>>>
>>>>> Hello
>>>>>
>>>>>
>>>>> I need to download road network to used for travel problems.
>>>>>
>>>>> In that road i need to have details for oneways connections.
>>>>>
>>>>>
>>>>> I try to use OSM download QGIS plugin to take the roads but that data
>>>>> dont have direction details for oneway road connections.
>>>>>
>>>>>
>>>>>
>>>>> Any idea ?
>>>>>
>>>>> Thank you
>>>>>
>>>>> _______________________________________________
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>>>>
>>>>
>>
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