gis

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Python, GIS and Fortran: Trying to create multiple polygons from xy point data

I\'ve been working on this problem for awhile and have found no joy on the ESRI forum page or with some FORTRAN triangulation script I wrote.[详细]

2023-04-06 14:52 分类：问答
Open Source/existing C# class to write GPX files? (C#)

I am looking for a C# library or class to help write GPX files from a collection of waypoints I have (lat/long, etc).[详细]

2023-04-05 03:45 分类：问答
Keeping metadata when using gIntersection from rgeos package in R

I have a set of coordinates as a SpatialPointsDataFrame object in R and I am clipping these points using a polygon to get only those points that are found within this polygon. I am doing this with the[详细]

2023-04-03 17:32 分类：问答
How to create MapInfo Tab file using external data (XML, SQL Server) with .NET

I need a way to create MapInfo tab (and associated files, ID开发者_如何转开发X, DAT etc) package using .NET (C Sharp) and preferably, an open source (free) library?[详细]

2023-04-03 01:54 分类：问答
Preferred order of writing latitude & longitude tuples in GIS services

When dealing with GIS source code you often need to write latitude and longitude coordinate tuples. E.g. in 开发者_开发百科Google Maps links (123, 456):[详细]

2023-04-02 07:16 分类：问答
Get lat/long given current point, distance and bearing

Given an existing point in lat/long, distance in (in KM) and bearing (in degrees converted to radians), I would like to calculate the new lat/long. This site crops up over and over again, but I just c[详细]

2023-04-01 10:57 分类：问答
Automated GUI Testing of GIS Application

I\'m working as a part-time developer on a GIS application project and my project manager wants to me to do automated testing of project. I tried looking for solutions that can be helpful.[详细]

2023-04-01 05:54 分类：问答
How can I load multiple gpx files into PostGIS?

I have a bunch of gpx files that come from GPSLogger for Android app. Files look like: <?xml version=\"1.0\" encoding=\"UTF-8\"?>[详细]

2023-03-31 19:35 分类：问答
What is ST in PostGIS?

Almost all the functions in PostGIS s开发者_如何学Gotart with ST. e.g. ST_Distance_Sphere, ST_GeomFromText, ST_Intersection, etc.[详细]

2023-03-31 19:07 分类：问答
django.contrib.gis.db.backends.postgis vs django.db.backends.postgresql_psycopg2

If a gis application has some tables which don\'t have gis related columns, does the performancebetter when use multiple databases (django.db.backends.postgresql_psycopg2 and django.contrib.gis.db.bac[详细]

2023-03-31 17:49 分类：问答