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TOPIC: Saving GPS coordinates

Saving GPS coordinates 1 year 2 months ago #118564

  • holch
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@tpartner: And it is not even 1.92, it is 1.91, even older...
Have a look at the manual! It is a really valuable source for information. Here some helpful links:
Manual (EN) | Question Types | Question Attributes | Workarounds

If you found this answer helpful and it saved you some time please consider a donation to the project to keep Limesurvey going!
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Saving GPS coordinates 1 year 2 months ago #118589

  • shawnchan
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Oh..I guess I have to upgrade Limesurvey before asking for help again.

Thanks again for your advise.
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Saving GPS coordinates 1 year 1 month ago #118976

  • shawnchan
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I used your scripts on Demo version of limesurvey and I can get the GPS coordinates now. The GPS coordinates is automatically shown the text box when I open the survey. Thanks tpartner for that.

What I'm trying to do now is to use the GPS function as a measure of quality control, making sure that they have done the interviews at the correct location.

Is there any way we can "secretly" store the GPS coordinates without noticing the users? because now GPS coordinates is shown on screen and even can be edited by users. I tried to do it by hiding the questions but I can't get the GPS coordinates when the question is hidden.
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Saving GPS coordinates 1 year 1 month ago #118981

  • tpartner
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You cannot manipulate a question that is hidden with the advanced question settings.

Try hiding the question with JavaScript.

<script type="text/javascript" charset="utf-8">
 
	$(document).ready(function(){
 
		// Identify this question
		var q1ID = '{QID}';
		var q1 = $('#question'+q1ID);
 
		// Hide this question
		q1.hide();
 
		function getGPS() {
			if (navigator.geolocation) {  
				navigator.geolocation.getCurrentPosition(showGPS, gpsError);
			} else {  
				$('input.text', q1).val('No GPS Functionality');  
			}
		}
 
		function gpsError(error) {
			//alert('GPS Error: '+error.code+', '+error.message);
		}
 
		function showGPS(position) {
			$('input.text', q1).val(position.coords.latitude+', '+position.coords.longitude);
		}
 
		getGPS();
 
	});
</script>
Cheers,
Tony Partner

Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
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Saving GPS coordinates 1 year 1 month ago #119032

  • shawnchan
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It's works perfectly now!!! Thanks a lot!
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Saving GPS coordinates 3 months 3 weeks ago #131079

  • rasheed
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Hello,

I wonder if there is a similar script for getting the device system info such as OS, Navigator,..

Thank you !
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Saving GPS coordinates 3 months 3 weeks ago #131081

  • holch
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Yes there is and you can find an example here in the forum. It might be a little older, but I gave an example where you save a lot of data about the browser and the screen etc. via Javascript into a hidden question. I am not sure if OS is included, but should be possible to include.
Have a look at the manual! It is a really valuable source for information. Here some helpful links:
Manual (EN) | Question Types | Question Attributes | Workarounds

If you found this answer helpful and it saved you some time please consider a donation to the project to keep Limesurvey going!
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Saving GPS coordinates 3 months 3 weeks ago #131082

  • holch
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Here the post that I mention. You just need to find out how to reference the OS via Javascript, but you should find some examples out there for this.

www.limesurvey.org/forum/can-i-do-this-w...g-screen-size#127805
Have a look at the manual! It is a really valuable source for information. Here some helpful links:
Manual (EN) | Question Types | Question Attributes | Workarounds

If you found this answer helpful and it saved you some time please consider a donation to the project to keep Limesurvey going!
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The following user(s) said Thank You: rasheed

Saving GPS coordinates 1 month 2 weeks ago #134398

  • Mazi
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shawnchan wrote:
What I'm trying to do now is to use the GPS function as a measure of quality control, making sure that they have done the interviews at the correct location.
One purpose of our recently released "OfflineSurveys" Limesurvey Android app is doing data collection on location. Since several users told us that it would be nice to store the current location's GPS coordinates, we have added an additional Android multimedia question type to get the current location from the device's GPS and store that at a Limesurvey question.
You can simply make such a question mandatory and that way force the user to always store the current location together with all other response details.

Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support)
Need Help? We offer professional Limesurvey support
Contact: marcel.minke(at)limesurvey.org'"
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Saving GPS coordinates 1 month 2 weeks ago #134489

  • OMdev
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I guess most of you already know but just for who don't..

Location from web browser:
#Gives the coordinates of the nearest Internet server respondent is connected to when survey start.
#Respondent will get a prompt in his browser which he has to confirm only then location will get captured.
#This approach will work even if device do not have GPS like laptop / desktop etc.

Location GPS(eg In Mazi offline application ):
#Capture coordinate using mobile GPS system.
#Highly precise
#No internet connectivity required.

It is very frequent requirement CAPI survys to capture GPS location the moment Interview starts. Clients wants it to confirm that interviewers and doing genuine interview.
Survey Designer and Programmer
"I always suggest to have a group by group display layout and create a seprate group for each question. This will be extra work but you will get flexiblity to create your question by using more than more lime survey question types."
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