Posted by marinv on December 14, 2010 at 1:43pm
Hello
I am using node_load in order to calculate the distance of a hotel to the city center.
There are two content types: "hotel", which contains the fields latitude, longitude and city;
The other content type is "city" with city name as title and the fields latitude and longitude, the coordinates of the city center (thanks to maxmind.com geolite dates};
I am using the following script:
<?php
$title=$data->node_title;
$city = $data->node_data_field_hid_field_city_value;
$k = $data->node_data_field_hid_field_latitud_value;
$l = $data->node_data_field_hid_field_longitude_value;
$node = node_load(array('title' => $city));
$m=$node->field_lat[0]['value'];
$n=$node->field_lng[0]['value'];
$k = $k/57.29577951;
$l = $l/57.29577951;
$m = $m/57.29577951;
$n = $n/57.29577951;
//convert all to radians: degree/57.29577951
if ($k == $m && $l == $n ){
$dist = 0;
}
else if ( (sin($k)* sin($m)+ cos($k)* cos($m)* cos($l-$n)) > 1){
$dist = 3963.1* acos(1);//
}
else{
$dist = 3963.1* acos(sin($k)<em>sin($m)+ cos($k)</em> cos($m)* cos($l-$n));
}
$dist = $dist*1.6;
if ($dist < 30) {
printf ('%0.2f', $dist);
echo " km to city center";
echo '<?b>';
}
?>The problem is when there are many cities with the same name; the script stops to the first one.
I suppose I should use "for each" command, in order to find the right city, but to be honest I do not know how.
Please help!
Comments
calculate distance between 2 addresses using geo modules
Hello,
I am a newbie,
how can I achieve this?
similar to goole map, I want to accept an address say: 162 summer st, Somerville Ma, (input form filed)
and a destination say Logan international airport (input form filed)
the result I want to use to calculate distance by say another value to get rates for the cost of trip using taxi.
is there some good semertan that can show me how to do that in Drupal 7. thanks in advance