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Hello,
I have the following situation:
Respondents indicate which city they live in (there are only 13 cities to choose from). Based on that, a map should be shown positioned on that city. How can I do that automatically?
This is how I do it now: for every city I have a question of type 'free short text' and at location I set OpenStreetMap at Use Mapping Service. A map is shown of the city the respondent indicated earlier in the survey (I fill in latitude and longitude of that specific city at 'Default position'). But is there a way to fill in latitude and longitude automatically (so I only need 1 question of type 'free short text' and location OpenStreetMap)?
Secondly, I want to lay a grid over that map showing the neighborhoods/districts of that city. Is that possible? How do I do that? I have a GEOJSN file with all the neighborhoods/districts of different cities (more than those 13 cities). How do I link this to the question with the map? I know this can be done via a Javascript, but I can't find how to do this. Can anyone help me? How can I show the correct grid?
To answer your first question:
Use a question of type equation where you set the lat and long of the selected city. I suppose it is a single punch question.
Equation question "coord"
{if(city==1,'50.22222 8.12345',if(city==2,'45.3456 12.2345',if(city=,....
Then you enter {coord} in "default position".
The second question? I do not understand your goal. Can you show something?
Joffm
Volunteers are not paid.
Not because they are worthless, but because they are priceless
I tried your solution with coord and it works! Thank you very much!
The second question: We show in a further question the neighborhoods/districts of that city and with the overlay of neighborhoods/districts on the map, the respondents can see in which neighborhoods/district their street is situated. And that is what we are interested in. How can I do that? I have a GEOJSN file, but is that the way to do this? Is there another (easier) way to do that?
,....
