Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-03 Thread Andreas Neumann
Very cool - thank you Bernhard! Andreas Am 03.09.2013 11:04, schrieb Bernhard Ströbl: > Hi Nathan, > > I took your code and made a new tool in the DigitizingTools plugin from it. > Anybody interested in flipping lines in QGIS 2 please download and > install DigitizingTools >= 0.3.0 > > Digitizi

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-03 Thread Nathan Woodrow
Bernhard, Fine with me. Saves me the extra work :) - Nathan On Tue, Sep 3, 2013 at 7:04 PM, Bernhard Ströbl wrote: > Hi Nathan, > > I took your code and made a new tool in the DigitizingTools plugin from it. > Anybody interested in flipping lines in QGIS 2 please download and install > Digiti

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-03 Thread Bernhard Ströbl
Hi Nathan, I took your code and made a new tool in the DigitizingTools plugin from it. Anybody interested in flipping lines in QGIS 2 please download and install DigitizingTools >= 0.3.0 DigitizingTools is meant to be a compilation of tools not yet available in QGIS or scattered in variuos pl

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-02 Thread Nathan Woodrow
On Mon, Sep 2, 2013 at 11:19 PM, Andreas Neumann wrote: > Personally I would prefer if a tool for switching line direction would > be in QGIS core rather than in a plugin. I hope that we can do that for > QGIS 2.1 - I don't consider changing the line direction as exotic or > special that it could

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-02 Thread Andreas Neumann
Hi, In waste-water management line direction also matters. Operators always digitize the LINESTRING geometry downstream from higher to lower levels. So far I did not have any issue with this - esp. not with storage, rendering, import/export. There may be some edge cases with some analysis tool -

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-01 Thread Anita Graser
Hi Stefan, Nathan developed the line direction switcher http://gis.stackexchange.com/questions/9261/how-can-i-switch-line-direction-in-qgis I do a lot of work with street networks where line direction is very important. So far, I haven't run into any problems due to the direction being me

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-01 Thread Stefan Keller
Hi Alexandre Thanks for the quick answer and the hint to the plugin LineSwitch (from Underdark?). Besides that the plugin page is'nt online currently for me - I'd like to emphasize that my main question is about the reliability through all processing steps to maintain the direction. I actually wan

Re: [Qgis-user] [Qgis-developer] About a 'directed' LINESTRING (e.g. for oneway streets)?

2013-09-01 Thread Alexandre Neto
Linestrings have a direction already, you can use marker lines with arrows to represent the original direction. For analysis you can revert the polyline direction using it's attributes, or using the switch the direction of polyline plugin [1] to actually invert vertex order. Alexandre Neto [1] h