Saving GPS coordinates

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4 years 6 months ago #95003 by marcic
marcic created the topic: Saving GPS coordinates
Hi there,

I was wondering if Limesurvey can save GPS coordinates obtained after clicking a link with a Javascript? I can get the coordinates to show in a Text display type of question but could not manage to get the two lines to be saved.

Maybe some of you are aware of a workaround available.

attached see lss file with one group and question with the script

Best,

Marcis

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4 years 6 months ago #95008 by orvil
orvil replied the topic: Saving GPS coordinates
Hi,

use an equation type question to read the text field (with EM). The result of the equation will be stored.
And: may be it is possible to poke your data directly to an equation type question.

Best regards/Beste Grüße,
O. Villani

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4 years 6 months ago #95019 by marcic
marcic replied the topic: Saving GPS coordinates
Thanks for your reply but apparently my skills with javascript are too weak and I cannot implement your propsed solution.

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4 years 6 months ago #95025 by tpartner
tpartner replied the topic: Saving GPS coordinates
Please attach your sample survey.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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4 years 6 months ago - 4 years 6 months ago #95026 by marcic
marcic replied the topic: Saving GPS coordinates
Sorry, apparently the lss file was not attached. Here it is again.



What I was trying to do was to implement one of these solutions:

macmost.com/iphone-gps-location-with-javascript.html

merged.ca/iphone/html5-geolocation
Last Edit: 4 years 6 months ago by marcic. Reason: no file attached

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4 years 6 months ago #95031 by tpartner
tpartner replied the topic: Saving GPS coordinates
Still no file attached but here's an example using your first link in a short-text question.

Add this to the question source (I used a button element to fire the geolocation function):
<button class="gpsLink" type="button">Get GPS Data</button>
<script type="text/javascript" charset="utf-8">
 
	$(document).ready(function(){
 
		// Identify this question
		var q1ID = '{QID}';
		var q1 = $('#question'+q1ID);
 
		// Click event for the button
		$('.gpsLink').click(function(){
			getGPS();
		});
 
		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);
		}
 
	});
</script>

Here's a test survey:

File Attachment:

File Name: limesurvey...tion.lss
File Size:12 KB

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
Attachments:
The following user(s) said Thank You: marcic

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4 years 6 months ago #95052 by marcic
marcic replied the topic: Saving GPS coordinates
Excellent! works as I imagined how it should work. Perhaps this could be added to workarounds?

Thanks,

Marcis

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4 years 6 months ago #95053 by tpartner
tpartner replied the topic: Saving GPS coordinates
Sure, we could add it but I'm hesitant given that it won't work in IE 7-8.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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2 years 7 months ago #118147 by dgtano
dgtano replied the topic: Saving GPS coordinates
Hello. Thank you very much for your contribution.
I would automatically save the GPS coordinates, without the button. Is it possible?

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2 years 7 months ago #118196 by tpartner
tpartner replied the topic: Saving GPS coordinates
This will fire the getGPS() function when the page is loaded.

<script type="text/javascript" charset="utf-8">
 
	$(document).ready(function(){
 
		// Identify this question
		var q1ID = '{QID}';
		var q1 = $('#question'+q1ID);
 
		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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2 years 7 months ago #118197 by dgtano
dgtano replied the topic: Saving GPS coordinates
Fantastic. Tks a lot

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2 years 6 months ago - 2 years 6 months ago #118541 by shawnchan
shawnchan replied the topic: Saving GPS coordinates
Hello,

Thank you very much for your effort, it looks like everybody else can work it out with your sample survey. I also tried to do it with your sample survey [limesurvey_survey_geolocation.lss ], but nothing shows in the text box after clicking the button, although a pop-up window shows up and asking for permission to get the location. Do you have any idea on this? I can get the location in Google map so I guess it's not the signal problem.

I also tried it on both android device and IPAD but it's still not working.

Thanks a lot.

LimeSurvey: Version 1.91+ Build 11379
Last Edit: 2 years 6 months ago by shawnchan.

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2 years 6 months ago #118554 by tpartner
tpartner replied the topic: Saving GPS coordinates
The survey was developed for LS 2+. Please upgrade your installation.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.

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2 years 6 months ago #118555 by shawnchan
shawnchan replied the topic: Saving GPS coordinates
Thanks for you reply. Is there any way I can get the GPS coordinates without an upgrade?

I tried to copy the two functions getGPS and showGPS to the lss file by the version 1.91 and then import back to LS but no luck..is there any way you can help to modify the lss file attached? It would be great if the lime survey can automatically save the GPS coordinates and store the coordinates as a variable.

I am attaching a sample survey generated by limesurvey Version 1.91+ Build 11379.

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2 years 6 months ago #118557 by tpartner
tpartner replied the topic: Saving GPS coordinates
I'm sorry, I cannot develop or test for 1.92 - it's too old.

Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
The following user(s) said Thank You: DenisChenu

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