Pass The Latitude And Longitude Values From 2 Separate Labels To 2 Variables
Aug 10, 2010
Im familiarising myself with google maps but i cant seem to get what i thought was the simplest thing to work. Im trying to pass the latitude and longitude values from 2 separate labels to 2 javascript variables.
I have a google maps application which has an address text box. When we type in the postal address, it gives the corresponding latitude and longitude as a pop up info window on a google map. All i want to do is to be able to get the latitude and longitude info into two text boxes on the html page. I am trying to modify the code but for some reason, I am unable to do it. Here is my code.
HTML page
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head>
I am trying to create an application which utilizes the distance finder. I want to be able to calculate the distance between two points. I have managed to (with the aid of a lot of tutorials) be able to calculate the distances between two points.
Now, in the application, there will be times where the user does not supply us with their location to calculate the distance. In this situation, the Latitude and Longitude will be calculated and this location will be shown to the user in the address form instead of with Latitude and Longitude.
What I have on one page is the distance calculator:
And on my other page I've got the latitude and longitude calculator.
I'm also stuck because these two pages will act as functions and will be linked to the main page where the input and output will occur. I'm new to JavaScript, but I am willing to do a lot to get this to work.
I'm currently working on a personal site and I'm using a very interesting javascript library written by Jacob from nihilogic.dk. This library allows me to extract some EXIF-data from pictures. My site will serve as a picture site where I will post pictures from my future world trip (one year travel from north america to south america).
My idea is to take pictures with a camera with GPS functionality so all the pictures will be tagged (in the exif) with a latitude and longitude value. The objective is to post these pictures on my site when I'm on tour and dynamically link them to a google map so visitors and myself can see the exact location where the picture was taken.
The following libraries offered by nihilogic: (binaryajax.js and exif.js) [URL] are able to read EXIF data such as latitude and longitude from the picture.
Since I'm trying to work with jquery I also tried the jquery version which does also read exif data. However the jquery version of the script doesn't read latitude and longitude tags.You can find this script here:jquery.exif.js
My question is it possible to find a solution that will allow reading out the longitude and latitude data with the jquery script? Is it possible to tell me how to enable this data in jquery?
Here's a test sample of my site using this script. click on the little globe icon under the first picture to see google maps and EXIF data.
I'm currently using some code that takes the latitude and longitude from a Google map and outputs it in a table when the user drags a marker on the map. I previously had it working that the outputted latitude and longitude appeared in an input box but I can no longer get this to work again.
I have posted the Javascript code below. <script type="text/javascript"> function load() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map")); map.addControl(new GSmallMapControl()); map.addControl(new GMapTypeControl()); var center = new GLatLng(55.54555, -3.39634 ); map.setCenter(center, 15); geocoder = new GClientGeocoder(); .....
This is the table I output the latitude and longitude to <table class="latlontable" style="float:left"> <tr><td width="100"><b>Latitude</b></td> <td id="lat" name="lat"></td></tr> <tr><td width="100"><b>Longitude</b></td> <td id="lng" name="lng"></td> </tr></table>
The code below assigns a value to the Latitude and to the Longitude table cells when the submit button is pressed. I would like to have these values appear in text boxes instead. Obviously I need to amend onclick="javascript:usePointFromPostcode(document.getElementById('postcode').value, placeMarkerAtPoint)" to make this work but I can't seem to. Assuming two text boxes with names lng and lat, how would I amend the line?
I've found the Harvesine forumla to get the distance between any two points of latitude and longitude on the earth's surface. What I want is a little different - I want that, given a point and a distance, to get the latitude and longitude of a second point. I'm having trouble reversing the forumla. The current formula:
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