[Qgis-user] regularly spaced address markers on alternating side of road

[Tyler Veinot]

Those are all good suggestions, I feel kind of silly asking now because the solutions all seem painfully obvious. Thanks for putting up with me ;)
Cheers

Sent from my Bell Sony device over Canada’s largest network.

---- Dan Jacobson wrote ----

>Thanks. I did
>$ qgis numbers/chain_number.qgs
>and indeed saw your line with the four digit numbers on it.
>
>Actually I think I should avoid doing my project by hand via
>mouseclicks (Qgis), and instead learn PostGIS and write "batch job" SQL script
>SELECT points WHERE each point is at 25 meter increments from the start
>of road. Then print label on alternating side of road etc.
>Maybe I can accomplish the whole thing without a GUI.
>
>I'll send this to both lists.
>
>>>>>> "FMRdM" == Fernando M Roxo da Motta <petro at roxo.org> writes:
>
>FMRdM> On Wed, 29 Jun 2016 14:38:52 +0800, Dan Jacobson <jidanni at jidanni.org>
>FMRdM> wrote:
>
>FMRdM>   Hello,
>
>FMRdM>   I am sending attached a ZIP with a simple project with a line and a
>FMRdM> point layer result of a chainage each 25 meters.
>
>FMRdM>   I don't know if I got your problem exactly, but in this project I
>FMRdM> used the chainage result to label the layer.
>
>FMRdM>   I was not able to make the layer going on alternate sides of the line
>FMRdM> as desired, but perhaps this can be a start.
>
>FMRdM>   In order to put the label on the point I choose in placement the
>FMRdM> option "offset from point" and made the offset zero.
>
>FMRdM>   It is possible to play with the marker (ex. make it have transparent
>FMRdM> fill and border in order to make it invisible).
>
>FMRdM>   I think it will make it look like the map you pointed in the link
>FMRdM> bellow.
>
>> Thanks. The idea is every 25 meters there should be a (proposed) house
>> number (location) on the left, then one on the right, left, etc.
>> Making for a total of 20 + 20 = 40 per kilometer.
>> Sort of like what I did with GRASS years ago
>> http://jidanni.org/geo/house_numbering/mountain.html
>> but clearer via using two sides of the roads... but just putting them
>> all down the middle would be OK too. Yes, it would be good to avoid
>> depending on plugins.
>> In fact just a bunch of dots along the center of the road would be
>> fine, which then I suppose I could hack the .qgs file to add labels
>> to with a perl script which I thankfully know how to write. I'll just
>> remind the government workers to remember odd goes on the left, etc.
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