1. Import

2026-03-29 10:34:57 +02:00
parent b0e00c1259
commit a1129565af
4899 changed files with 3007593 additions and 0 deletions
--- a/html/include/inc_pnpoly.inc.php
+++ b/html/include/inc_pnpoly.inc.php
@@ -0,0 +1,76 @@
+<?php
+
+function pnpoly($px, $py, $x, $y) {
+  $npol = count($px);
+  $c = false;
+  for ($i = 0, $j = $npol - 1; $i < $npol; $j = $i++) {
+    if (((($py[$i] <= $y) && ($y < $py[$j])) ||
+         (($py[$j] <= $y) && ($y < $py[$i]))) &&
+        ($x < ($px[$j] - $px[$i]) * ($y - $py[$i]) / ($py[$j] - $py[$i]) + $px[$i]))
+      $c = !$c;
+  }
+  return $c;
+}
+
+// Check for coordinates being in zipcode
+function isInZipcodeArea($pointLong, $pointLat, $zipcode) {
+  global $db;  
+  // $plzp_polygons  = $db->getOne("SELECT plzp_polygons FROM phoenix_special.plz_polygon WHERE plzp_code = '$zipcode'");  
+  $plzp_polygons  = getOneStmt("SELECT plzp_polygons FROM phoenix_special.plz_polygon WHERE plzp_code = '$zipcode'", "plzp_polygons");
+  $polygons = explode("|", $plzp_polygons);
+  foreach($polygons as $polygon) {  
+    $polygonPointsX = array();
+    $polygonPointsY = array();
+    $points = explode(",", $polygon);
+    foreach($points as $point) {
+      list($plzp_x_deg, $plzp_y_deg) = explode(" ", $point);
+      array_push ($polygonPointsX, $plzp_x_deg);
+      array_push ($polygonPointsY, $plzp_y_deg);
+    }
+    if (pnpoly($polygonPointsX, $polygonPointsY, $pointLong, $pointLat))
+      return true;
+  }
+  return false;
+}
+
+function findZipcodeArea($pointLong, $pointLat) {
+  global $db;
+
+  // Init  
+  $maxSearchRadius = 5;
+  $maxSearches = 10;
+  $geoEarthRadius = 6371.0;
+  $tblZipcode = "phoenix_special.plz_geodb";
+  $fldLat = "plzg_breite";
+  $fldLong = "plzg_laenge";
+  $fldZipcode = "plzg_code";
+
+  $max_search_radius = 0;
+  $plz_sql = "";
+  do {
+    $max_search_radius += $maxSearchRadius;
+    $plz_sql_clause = "";
+    if ($plz_sql != "") 
+       $plz_sql_clause = " AND " . $fldZipcode . " NOT IN ($plz_sql)";
+    $sqlQuery = "SELECT " . $fldZipcode . " AS plz FROM " . $tblZipcode . " WHERE " .
+      "(ACOS((SIN(" . deg2rad($pointLat) . ")*SIN(RADIANS(" . $fldLat . "))) + " .      "(COS(" . deg2rad($pointLat) . ")*COS(RADIANS(" . $fldLat . "))*COS(RADIANS(" . $fldLong . ")-" .
+      deg2rad($pointLong) . "))) * " . $geoEarthRadius . ") < " . $max_search_radius . $plz_sql_clause;
+
+    $res = $db->query($sqlQuery);
+    if (DB::isError($res)) die ("$PHP_SELF: " . $result->getMessage());
+    $i = 0;
+
+    while ($row = $res->fetch_assoc()):
+      if (isInZipcodeArea($pointLong, $pointLat, $row["plz"])) {
+        return $row["plz"];
+      }
+      if ($plz_sql != "")
+        $plz_sql .= ",";
+      $plz_sql .= "'" . $row["plz"] . "'";  
+    endwhile;
+
+    $res->free();
+  } while($max_search_radius < $maxSearchRadius * $maxSearches);
+  return "";
+}
+?>