add instructions to enable use of Tiger data

[nominatim.git] / lib / PlaceLookup.php

diff --git a/lib/PlaceLookup.php b/lib/PlaceLookup.php
index 94e414dc7d45e930e8d1092f45f1f9e4125860ee..be60ff0782ba02221ae60ed369455b895a4c6bc8 100644 (file)
--- a/lib/PlaceLookup.php
+++ b/lib/PlaceLookup.php
@@ -111,7 +111,7 @@
                        {
                                $this->setOSMID($details['osm_type'], $details['osm_id']);
                        }
-                       if (isset($details['fraction'])) $this->fTigerFraction = $details['fraction'];
+                       if (isset($details['fraction'])) $this->fInterpolFraction = $details['fraction'];
 
                        return $this->lookup();
                }
@@ -122,7 +122,7 @@
 
                        $sLanguagePrefArraySQL = "ARRAY[".join(',',array_map("getDBQuoted", $this->aLangPrefOrder))."]";
 
-                       if ($this->sType == 'tiger')
+                       if (CONST_Use_US_Tiger_Data && $this->sType == 'tiger')
                        {
                                $sSQL = "select place_id,partition, 'T' as osm_type, place_id as osm_id, 'place' as class, 'house' as type, null as admin_level, housenumber, null as street, null as isin, postcode,";
                                $sSQL .= " 'us' as country_code, parent_place_id, null as linked_place_id, 30 as rank_address, 30 as rank_search,";
@@ -134,12 +134,33 @@
                                if ($this->bNameDetails) $sSQL .= " null as names,";
                                $sSQL .= " ST_X(point) as lon, ST_Y(point) as lat from (select *, ST_LineInterpolatePoint(linegeo, (housenumber-startnumber::float)/(endnumber-startnumber)::float) as point from ";
                                $sSQL .= " (select *, ";
-                               $sSQL .= " CASE WHEN interpolationtype='odd' THEN floor((".$this->fTigerFraction."*(endnumber-startnumber)+startnumber)/2)::int*2+1";
-                               $sSQL .= " WHEN interpolationtype='even' THEN ((".$this->fTigerFraction."*(endnumber-startnumber)+startnumber+1)/2)::int*2";
-                               $sSQL .= " WHEN interpolationtype='all' THEN (".$this->fTigerFraction."*(endnumber-startnumber)+startnumber)::int";
+                               $sSQL .= " CASE WHEN interpolationtype='odd' THEN floor((".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)/2)::int*2+1";
+                               $sSQL .= " WHEN interpolationtype='even' THEN ((".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)/2)::int*2";
+                               $sSQL .= " WHEN interpolationtype='all' THEN (".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)::int";
                                $sSQL .= " END as housenumber";
                                $sSQL .= " from location_property_tiger where place_id = ".(int)$this->iPlaceID.") as blub1) as blub2";
                        }
+                       else if ($this->sType == 'interpolation')
+                       {
+                               $sSQL = "select place_id, partition, 'W' as osm_type, osm_id, 'place' as class, 'house' as type, null admin_level, housenumber, null as street, null as isin, postcode,";
+                               $sSQL .= " calculated_country_code as country_code, parent_place_id, null as linked_place_id, 30 as rank_address, 30 as rank_search,";
+                               $sSQL .= " (0.75-(30::float/40)) as importance, null as indexed_status, null as indexed_date, null as wikipedia, calculated_country_code, ";
+                               $sSQL .= " get_address_by_language(place_id, housenumber, $sLanguagePrefArraySQL) as langaddress,";
+                               $sSQL .= " null as placename,";
+                               $sSQL .= " null as ref,";
+                               if ($this->bExtraTags) $sSQL .= " null as extra,";
+                               if ($this->bNameDetails) $sSQL .= " null as names,";
+                               $sSQL .= " ST_X(point) as lon, ST_Y(point) as lat from (select *, ST_LineInterpolatePoint(linegeo, (housenumber-startnumber::float)/(endnumber-startnumber)::float) as point from ";
+                               $sSQL .= " (select *, ";
+                               $sSQL .= " CASE WHEN interpolationtype='odd' THEN floor((".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)/2)::int*2+1";
+                               $sSQL .= " WHEN interpolationtype='even' THEN ((".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)/2)::int*2";
+                               $sSQL .= " WHEN interpolationtype='all' THEN (".$this->fInterpolFraction."*(endnumber-startnumber)+startnumber)::int";
+                               $sSQL .= " END as housenumber";
+                               $sSQL .= " from location_property_osmline where place_id = ".(int)$this->iPlaceID.") as blub1) as blub2";
+                               // testcase: interpolationtype=odd, startnumber=1000, endnumber=1006, fInterpolFraction=1 => housenumber=1007 => error in st_lineinterpolatepoint
+                               // but this will never happen, because if the searched point is that close to the endnumber, the endnumber house will be directly taken from placex (in ReverseGeocode.php line 220)
+                               // and not interpolated
+                       }
                        else
                        {
                                $sSQL = "select placex.place_id, partition, osm_type, osm_id, class, type, admin_level, housenumber, street, isin, postcode, country_code, parent_place_id, linked_place_id, rank_address, rank_search, ";
@@ -166,7 +187,7 @@
 
                        if ($this->bAddressDetails)
                        {
-                               if($this->sType == 'tiger') // to get addressdetails for tiger data, the housenumber is needed
+                               if(CONST_Use_US_Tiger_Data && $this->sType == 'tiger' || $this->sType == 'interpolation') // to get addressdetails for tiger data, the housenumber is needed
                                        $aAddress = $this->getAddressNames($aPlace['housenumber']);
                                else
                                        $aAddress = $this->getAddressNames();