02-17-2020
Hi jeo_fb...
Assuming you are using Longitude and Latitude WRT Earth as a __sphere__ then it is not possible to create a rectangle as Euclidean geometry does not apply.
IF, however you just want the Longitude to change but have matching Latitudes and vice versa and those listing out then please confirm...
Bazza...
Last edited by wisecracker; 02-17-2020 at 07:01 AM..
Reason: Add the words "and vice versa"
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json(n) JSON json(n)
__________________________________________________________________________________________________________________________________________________
NAME
json - JSON parser
SYNOPSIS
package require Tcl 8.4
package require json ?1.1?
::json::json2dict txt
_________________________________________________________________
DESCRIPTION
The json package provides a simple Tcl-only library for parsing the JSON http://www.json.org/ data exchange format as specified in RFC 4627
http://www.ietf.org/rfc/rfc4627.txt. There is some ambiguity in parsing JSON because JSON has type information that is not maintained by
the Tcl conversion. The json package returns data as a Tcl dict. Either the dict package or Tcl 8.5 is required for use.
COMMANDS
::json::json2dict txt
Parse JSON formatted text txt into a Tcl dict and return the value.
EXAMPLES
An example of a JSON array converted to Tcl. A JSON array is returned as a single item with multiple elements.
[
{
"precision": "zip",
"Latitude": 37.7668,
"Longitude": -122.3959,
"Address": "",
"City": "SAN FRANCISCO",
"State": "CA",
"Zip": "94107",
"Country": "US"
},
{
"precision": "zip",
"Latitude": 37.371991,
"Longitude": -122.026020,
"Address": "",
"City": "SUNNYVALE",
"State": "CA",
"Zip": "94085",
"Country": "US"
}
]
=>
{Country US Latitude 37.7668 precision zip State CA City {SAN FRANCISCO} Address {} Zip 94107 Longitude -122.3959} {Country US Latitude 37.371991 precision zip State CA City SUNNYVALE Address {} Zip 94085 Longitude -122.026020}
An example of a JSON object converted to Tcl. A JSON object is returned as a multi-element list (a dict).
{
"Image": {
"Width": 800,
"Height": 600,
"Title": "View from 15th Floor",
"Thumbnail": {
"Url": "http://www.example.com/image/481989943",
"Height": 125,
"Width": "100"
},
"IDs": [116, 943, 234, 38793]
}
}
=>
Image {IDs {116 943 234 38793} Thumbnail {Width 100 Height 125 Url http://www.example.com/image/481989943} Width 800 Height 600 Title {View from 15th Floor}}
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category json of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
KEYWORDS
data exchange, exchange format, javascript, json
CATEGORY
CGI programming
COPYRIGHT
Copyright (c) 2006 ActiveState Software Inc., 2009 Thomas Maeder, Glue Software Engineering AG
json 1.1 json(n)