--- a/include/common-geo.inc.php +++ b/include/common-geo.inc.php @@ -1,1 +1,151 @@ +<?php +// SELECT array_to_string(array(SELECT REPLACE(name_2006, ',', '\,') as name FROM suburbs order by name), ',') +$suburbs = explode(",", "Acton,Ainslie,Amaroo,Aranda,Banks,Barton,Belconnen,Bonner,Bonython,Braddon,Bruce,Calwell,Campbell,Chapman,Charnwood,Chifley,Chisholm,City,Conder,Cook,Curtin,Deakin,Dickson,Downer,Duffy,Dunlop,Evatt,Fadden,Farrer,Fisher,Florey,Flynn,Forrest,Franklin,Fraser,Fyshwick,Garran,Gilmore,Giralang,Gordon,Gowrie,Greenway,Griffith,Gungahlin,Hackett,Hall,Harrison,Hawker,Higgins,Holder,Holt,Hughes,Hume,Isaacs,Isabella Plains,Kaleen,Kambah,Kingston,Latham,Lawson,Lyneham,Lyons,Macarthur,Macgregor,Macquarie,Mawson,McKellar,Melba,Mitchell,Monash,Narrabundah,Ngunnawal,Nicholls,Oaks Estate,O'Connor,O'Malley,Oxley,Page,Palmerston,Parkes,Pearce,Phillip,Pialligo,Red Hill,Reid,Richardson,Rivett,Russell,Scullin,Spence,Stirling,Symonston,Tharwa,Theodore,Torrens,Turner,Wanniassa,Waramanga,Watson,Weetangera,Weston,Yarralumla"); +function staticmap($mapPoints, $zoom = 0, $markerImage = "iconb", $collapsible = true) +{ + $width = 300; + $height = 300; + $metersperpixel[9] = 305.492 * $width; + $metersperpixel[10] = 152.746 * $width; + $metersperpixel[11] = 76.373 * $width; + $metersperpixel[12] = 38.187 * $width; + $metersperpixel[13] = 19.093 * $width; + $metersperpixel[14] = 9.547 * $width; + $metersperpixel[15] = 4.773 * $width; + $metersperpixel[16] = 2.387 * $width; + // $metersperpixel[17]=1.193*$width; + $center = ""; + $markers = ""; + $minlat = 999; + $minlon = 999; + $maxlat = 0; + $maxlon = 0; + if (sizeof($mapPoints) < 1) return "map error"; + if (sizeof($mapPoints) === 1) { + if ($zoom == 0) $zoom = 14; + $markers.= "{$mapPoints[0][0]},{$mapPoints[0][1]},$markerimage"; + $center = "{$mapPoints[0][0]},{$mapPoints[0][1]}"; + } + else { + foreach ($mapPoints as $index => $mapPoint) { + $markers.= $mapPoint[0] . "," . $mapPoint[1] . "," . $markerImage . ($index + 1); + if ($index + 1 != sizeof($mapPoints)) $markers.= "|"; + if ($mapPoint[0] < $minlat) $minlat = $mapPoint[0]; + if ($mapPoint[0] > $maxlat) $maxlat = $mapPoint[0]; + if ($mapPoint[1] < $minlon) $minlon = $mapPoint[1]; + if ($mapPoint[1] > $maxlon) $maxlon = $mapPoint[1]; + $totalLat+= $mapPoint[0]; + $totalLon+= $mapPoint[1]; + } + if ($zoom == 0) { + $mapwidthinmeters = distance($minlat, $minlon, $minlat, $maxlon); + foreach (array_reverse($metersperpixel, true) as $zoomLevel => $maxdistance) { + if ($zoom == 0 && $mapwidthinmeters < ($maxdistance + 50)) $zoom = $zoomLevel; + } + } + $center = $totalLat / sizeof($mapPoints) . "," . $totalLon / sizeof($mapPoints); + } + $output = ""; + if ($collapsible) $output.= '<div data-role="collapsible" data-collapsed="true"><h3>Open Map...</h3>'; + $output.= '<center><img src="' . curPageURL() . 'lib/staticmaplite/staticmap.php?center=' . $center . '&zoom=' . $zoom . '&size=' . $width . 'x' . $height . '&maptype=mapnik&markers=' . +$markers . '" width=' . $width . ' height=' . $height . '></center>'; + if ($collapsible) $output.= '</div>'; + return $output; +} +function distance($lat1, $lng1, $lat2, $lng2, $roundLargeValues = false) +{ + $pi80 = M_PI / 180; + $lat1*= $pi80; + $lng1*= $pi80; + $lat2*= $pi80; + $lng2*= $pi80; + $r = 6372.797; // mean radius of Earth in km + $dlat = $lat2 - $lat1; + $dlng = $lng2 - $lng1; + $a = sin($dlat / 2) * sin($dlat / 2) + cos($lat1) * cos($lat2) * sin($dlng / 2) * sin($dlng / 2); + $c = 2 * atan2(sqrt($a) , sqrt(1 - $a)); + $km = $r * $c; + if ($roundLargeValues) { + if ($km < 1) return floor($km * 1000); + else return round($km,2)."k"; + } else return floor($km * 1000); +} +function decodePolylineToArray($encoded) +{ + // source: http://latlongeeks.com/forum/viewtopic.php?f=4&t=5 + $length = strlen($encoded); + $index = 0; + $points = array(); + $lat = 0; + $lng = 0; + while ($index < $length) { + // Temporary variable to hold each ASCII byte. + $b = 0; + // The encoded polyline consists of a latitude value followed by a + // longitude value. They should always come in pairs. Read the + // latitude value first. + $shift = 0; + $result = 0; + do { + // The `ord(substr($encoded, $index++))` statement returns the ASCII + // code for the character at $index. Subtract 63 to get the original + // value. (63 was added to ensure proper ASCII characters are displayed + // in the encoded polyline string, which is `human` readable) + $b = ord(substr($encoded, $index++)) - 63; + // AND the bits of the byte with 0x1f to get the original 5-bit `chunk. + // Then left shift the bits by the required amount, which increases + // by 5 bits each time. + // OR the value into $results, which sums up the individual 5-bit chunks + // into the original value. Since the 5-bit chunks were reversed in + // order during encoding, reading them in this way ensures proper + // summation. + $result|= ($b & 0x1f) << $shift; + $shift+= 5; + } + // Continue while the read byte is >= 0x20 since the last `chunk` + // was not OR'd with 0x20 during the conversion process. (Signals the end) + while ($b >= 0x20); + // Check if negative, and convert. (All negative values have the last bit + // set) + $dlat = (($result & 1) ? ~($result >> 1) : ($result >> 1)); + // Compute actual latitude since value is offset from previous value. + $lat+= $dlat; + // The next values will correspond to the longitude for this point. + $shift = 0; + $result = 0; + do { + $b = ord(substr($encoded, $index++)) - 63; + $result|= ($b & 0x1f) << $shift; + $shift+= 5; + } while ($b >= 0x20); + $dlng = (($result & 1) ? ~($result >> 1) : ($result >> 1)); + $lng+= $dlng; + // The actual latitude and longitude values were multiplied by + // 1e5 before encoding so that they could be converted to a 32-bit + // integer representation. (With a decimal accuracy of 5 places) + // Convert back to original values. + $points[] = array( + $lat * 1e-5, + $lng * 1e-5 + ); + } + return $points; +} +function geocode($query, $giveOptions) +{ + global $cloudmadeAPIkey; + $url = "http://geocoding.cloudmade.com/$cloudmadeAPIkey/geocoding/v2/find.js?query=" . urlencode($query) . "&bbox=-35.5,149.00,-35.15,149.1930&return_location=true&bbox_only=true"; + $contents = json_decode(getPage($url)); + if ($giveOptions) return $contents->features; + elseif (isset($contents->features[0]->centroid)) return $contents->features[0]->centroid->coordinates[0] . "," . $contents->features[0]->centroid->coordinates[1]; + else return ""; +} +function reverseGeocode($lat, $lng) +{ + global $cloudmadeAPIkey; + $url = "http://geocoding.cloudmade.com/$cloudmadeAPIkey/geocoding/v2/find.js?around=" . $lat . "," . $lng . "&distance=closest&object_type=road"; + $contents = json_decode(getPage($url)); + return $contents->features[0]->properties->name; +} +?>