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- <?php
- require_once ("config.php");
- require_once ("phpcoord.php");
-
- $preview_page = new preview_page;
-
- class preview_page {
-
- //Properties
- var $warnings = "";
- var $center_long = 0;
- var $center_lat = 0;
- var $bottom_left_long = 0;
- var $bottom_left_lat = 0;
- var $top_right_long = 0;
- var $top_right_lat = 0;
-
- //Constructor
- function preview_page() {
- $this->setup();
- $this->bind();
- }
-
- //setup
- function setup (){
-
- //Grab the postcode and area size from the get string
-
- if (!isset($_GET['postcode'])){
- $this->warnings .= "No postcode specified ";
- }
- if (!isset($_GET['area_size'])){
- $this->warnings .= "No area size specified ";
- }
-
- if ($this->warnings == ""){
-
- //Get OS ref from postcode
- $xy = postcode_to_location($_GET['postcode']);
-
- //Get the centroid long / lat (google maps doesnt handle grid refs)
- $os_ref = new OSRef($xy[0], $xy[1]);
- $long_lat = $os_ref->toLatLng();
- $this->center_long = $long_lat->lng;
- $this->center_lat = $long_lat->lat;
-
- //get long lat for the bounding box (OS grid refs are in meters in case you were wondering)
-
- //bottom left
- $area_size_meters = alert_size_to_meters($_GET['area_size']);
- $os_ref = new OSRef($xy[0] - $area_size_meters, $xy[1] - $area_size_meters);
- $long_lat = $os_ref->toLatLng();
- $this->bottom_left_long = $long_lat->lng;
- $this->bottom_left_lat = $long_lat->lat;
-
- //top right
- $area_size_meters = alert_size_to_meters($_GET['area_size']);
- $os_ref = new OSRef($xy[0] + $area_size_meters, $xy[1] + $area_size_meters);
- $long_lat = $os_ref->toLatLng();
- $this->top_right_long = $long_lat->lng;
- $this->top_right_lat = $long_lat->lat;
-
- }
-
- }
-
- //Bind
- function bind () {
-
- //page vars
- $form_action = $_SERVER['PHP_SELF'];
-
- //smarty
- $smarty = new Smarty;
- $smarty->force_compile = true;
- $smarty->compile_dir = SMARTY_COMPILE_DIRECTORY;
-
- $smarty->assign("warnings", $this->warnings);
- $smarty->assign("center_long", $this->center_long);
- $smarty->assign("center_lat", $this->center_lat);
- $smarty->assign("bottom_left_long", $this->bottom_left_long);
- $smarty->assign("bottom_left_lat", $this->bottom_left_lat);
- $smarty->assign("top_right_long", $this->top_right_long);
- $smarty->assign("top_right_lat", $this->top_right_lat);
- $smarty->assign("warnings", $this->warnings);
- $smarty->assign("google_maps_key", GOOGLE_MAPS_KEY);
-
- //Render
- $smarty->display('preview.tpl');
-
- }
-
- }
-
-
-
- ?>
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