<?xml version="1.0" encoding="utf-8"?>\r
<section id="GuideReferenceDecodeLatLong">\r
<title id="titleGuideReferenceDecodeLatLong">Decoding Latitude and Longitude</title>\r
- <para>This section is relevent to the search option "Search on geo-location".</para>\r
+ <para>This section is relevent to geocode searches and the map display of Geeqie.</para>\r
<para>\r
The result of some internet or other searches for placenames can contain a latitude and longitude embedded in a text string. For example an openstreetmap.org search can give a URL such as:\r
<para />\r
<code>https://www.openstreetmap.org/search?query=51.5542%2C-0.1816#map=12/51.5542/-0.1818</code>\r
</para>\r
<para>\r
- If you paste such a string into the search box, the latitude/longitude can be automatically extracted and used as the origin of the search. To do this create the file\r
+ If you paste such a string into the search box, the latitude/longitude can be automatically extracted and used as the origin of the search.\r
+ <para />\r
+ You may also drag-and-drop a URL of this type onto the map to cause the map to be re-centered.\r
+ <para />\r
+ To enable this feature, create the file\r
<para />\r
<code>~/.config/geeqie/geocode-parameters.awk</code>\r
<para />\r
</para>\r
<para>\r
<programlisting xml:space="preserve">\r
-# Store this file in:\r
-# ~/.config/geeqie/geocode-parameters.awk\r
-#\r
-# This file is used by the Search option "search on geo-position".\r
-# It is used to decode the results of internet or other searches\r
-# to extract a geo-position from a text string. \r
-# To include other searches, follow the examples below and\r
-# ensure the returned value is either in the format:\r
-# 89.123 179.123\r
-# or\r
-# Error: $0\r
-#\r
-\r
-function check_parameters(latitude, longitude)\r
- {\r
- # Ensure the parameters are numbers \r
- if ((latitude == (latitude+0)) && (longitude == (longitude+0)))\r
- {\r
- if (latitude >= -90 && latitude <= 90 &&\r
- longitude >= -180 && longitude <= 180)\r
- {\r
- return latitude " " longitude\r
- }\r
- else\r
- {\r
- return "Error: " latitude " " longitude\r
- }\r
- }\r
- else\r
- {\r
- return "Error: " latitude " " longitude\r
- }\r
- }\r
-\r
-# This awk file is accessed by the decode_geo_parameters() function\r
-# in search.c. The call is of the format:\r
-# echo "string_to_be_searched" | awk -f geocode-parameters.awk\r
-#\r
-# Search the input string for known formats.\r
-{\r
-if (index($0, "http://www.geonames.org/maps/google_"))\r
- {\r
- # This is a drag-and-drop or copy-paste from a geonames.org search\r
- # in the format e.g.\r
- # http://www.geonames.org/maps/google_51.513_-0.092.html\r
- \r
- gsub(/http:\/\/www.geonames.org\/maps\/google_/, "")\r
- gsub(/.html/, "")\r
- gsub(/_/, " ")\r
- print check_parameters($1, $2)\r
- }\r
-\r
-else if (index($0, "https://www.openstreetmap.org/search?query="))\r
- {\r
- # This is a copy-paste from an openstreetmap.org search\r
- # in the format e.g.\r
- # https://www.openstreetmap.org/search?query=51.4878%2C-0.1353#map=11/51.4880/-0.1356\r
- \r
- gsub(/https:\/\/www.openstreetmap.org\/search\?query=/, "")\r
- gsub(/#map=.*/, "")\r
- gsub(/%2C/, " ")\r
- print check_parameters($1, $2)\r
- }\r
-\r
-else if (index($0, "https://www.openstreetmap.org/#map="))\r
- {\r
- # This is a copy-paste from an openstreetmap.org search\r
- # in the format e.g.\r
- # https://www.openstreetmap.org/#map=5/18.271/16.084\r
- \r
- gsub(/https:\/\/www.openstreetmap.org\/#map=[^\/]*/,"")\r
- gsub(/\//," ")\r
- print check_parameters($1, $2)\r
- }\r
-\r
-else if (index($0, "https://www.google.com/maps/"))\r
- {\r
- # This is a copy-paste from a google.com maps search\r
- # in the format e.g.\r
- # https://www.google.com/maps/place/London,+UK/@51.5283064,-0.3824815,10z/data=....\r
- \r
- gsub(/https:\/\/www.google.com\/maps.*@/,"")\r
- sub(/,/," ")\r
- gsub(/,.*/,"")\r
- print check_parameters($1, $2)\r
- }\r
-\r
-else if (index($0,".html"))\r
- {\r
- # This is an unknown html address\r
- \r
- print "Error: " $0\r
- }\r
-\r
-else if (index($0,"http"))\r
- {\r
- # This is an unknown html address\r
- \r
- print "Error: " $0\r
- }\r
-\r
-else if (index($0, ","))\r
- {\r
- # This is assumed to be a simple lat/long of the format:\r
- # 89.123,179.123\r
- \r
- split($0, latlong, ",")\r
- print check_parameters(latlong[1], latlong[2])\r
- }\r
-\r
-else\r
- {\r
- # This is assumed to be a simple lat/long of the format:\r
- # 89.123 179.123\r
- \r
- split($0, latlong, " ")\r
- print check_parameters(latlong[1], latlong[2])\r
- }\r
-}\r
+ # Store this file in:\r
+ # ~/.config/geeqie/geocode-parameters.awk\r
+ #\r
+ # This file is used to decode the results of internet or other searches\r
+ # to extract a geo-position from a text string. \r
+ # To include other searches, follow the examples below and\r
+ # ensure the returned value is either in the format:\r
+ # 89.123 179.123\r
+ # or\r
+ # Error: $0\r
+ #\r
+ \r
+ function check_parameters(latitude, longitude)\r
+ {\r
+ # Ensure the parameters are numbers \r
+ if ((latitude == (latitude+0)) && (longitude == (longitude+0)))\r
+ {\r
+ if (latitude >= -90 && latitude <= 90 &&\r
+ longitude >= -180 && longitude <= 180)\r
+ {\r
+ return latitude " " longitude\r
+ }\r
+ else\r
+ {\r
+ return "Error: " latitude " " longitude\r
+ }\r
+ }\r
+ else\r
+ {\r
+ return "Error: " latitude " " longitude\r
+ }\r
+ }\r
+ \r
+ # This awk file is accessed by an internal function.\r
+ # The call is of the format:\r
+ # echo "string_to_be_searched" | awk -f geocode-parameters.awk\r
+ #\r
+ # Search the input string for known formats.\r
+ {\r
+ if (index($0, "http://www.geonames.org/maps/google_"))\r
+ {\r
+ # This is a drag-and-drop or copy-paste from a geonames.org search\r
+ # in the format e.g.\r
+ # http://www.geonames.org/maps/google_51.513_-0.092.html\r
+ \r
+ gsub(/http:\/\/www.geonames.org\/maps\/google_/, "")\r
+ gsub(/.html/, "")\r
+ gsub(/_/, " ")\r
+ print check_parameters($1, $2)\r
+ }\r
+ \r
+ else if (index($0, "https://www.openstreetmap.org/search?query="))\r
+ {\r
+ # This is a copy-paste from an openstreetmap.org search\r
+ # in the format e.g.\r
+ # https://www.openstreetmap.org/search?query=51.4878%2C-0.1353#map=11/51.4880/-0.1356\r
+ \r
+ gsub(/https:\/\/www.openstreetmap.org\/search\?query=/, "")\r
+ gsub(/#map=.*/, "")\r
+ gsub(/%2C/, " ")\r
+ print check_parameters($1, $2)\r
+ }\r
+ \r
+ else if (index($0, "https://www.openstreetmap.org/#map="))\r
+ {\r
+ # This is a copy-paste from an openstreetmap.org search\r
+ # in the format e.g.\r
+ # https://www.openstreetmap.org/#map=5/18.271/16.084\r
+ \r
+ gsub(/https:\/\/www.openstreetmap.org\/#map=[^\/]*/,"")\r
+ gsub(/\//," ")\r
+ print check_parameters($1, $2)\r
+ }\r
+ \r
+ else if (index($0, "https://www.google.com/maps/"))\r
+ {\r
+ # This is a copy-paste from a google.com maps search\r
+ # in the format e.g.\r
+ # https://www.google.com/maps/place/London,+UK/@51.5283064,-0.3824815,10z/data=....\r
+ \r
+ gsub(/https:\/\/www.google.com\/maps.*@/,"")\r
+ sub(/,/," ")\r
+ gsub(/,.*/,"")\r
+ print check_parameters($1, $2)\r
+ }\r
+ \r
+ else if (index($0,".html"))\r
+ {\r
+ # This is an unknown html address\r
+ \r
+ print "Error: " $0\r
+ }\r
+ \r
+ else if (index($0,"http"))\r
+ {\r
+ # This is an unknown html address\r
+ \r
+ print "Error: " $0\r
+ }\r
+ \r
+ else if (index($0, ","))\r
+ {\r
+ # This is assumed to be a simple lat/long of the format:\r
+ # 89.123,179.123\r
+ \r
+ split($0, latlong, ",")\r
+ print check_parameters(latlong[1], latlong[2])\r
+ }\r
+ \r
+ else\r
+ {\r
+ # This is assumed to be a simple lat/long of the format:\r
+ # 89.123 179.123\r
+ \r
+ split($0, latlong, " ")\r
+ print check_parameters(latlong[1], latlong[2])\r
+ }\r
+ }\r
\r
</programlisting>\r
</para>\r
projects / geeqie.git / blobdiff