gis

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python to identify curved segments

I posted a similar question on the ESRI forums, but the posting seems to have gone cold :( Anyone know how to identify if an ESRI feature class contains curved, (arcs) segment(s)?[详细]

2023-03-11 21:02 分类：问答
what is the MySQL function wchih is equavalent to DB2/PostGIS function "ST_Intersection"?

I\'m doing some performance comparison between DB2/MySQL spatial functions. However after I translate the DB2 spatial queries into MySQL dialect, it complains about syntax error (ERROR: Function Inter[详细]

2023-03-09 20:25 分类：问答
How to add custom data source to GeoServer WMS service?

I\'m installing GeoServer as a WMS server to cooperate with OpenLayers. The trouble is that I have to use 3rd-party tile source which is provided through web service.[详细]

2023-03-09 17:07 分类：问答
Illegal non geometric 'aswkb(...)' value found during parsing

I used tutorial from http://dev.mysql.com/tech-resources/articles/4.1/gis开发者_运维问答-with-mysql.html[详细]

2023-03-08 08:56 分类：问答
firefox location awareness + javascript scope

I primarily code in PHP, I don\'t have extensive knowledge on JavaScript scope; hoping somebody can solve my problem pretty quickly. As indicated by the com开发者_Go百科ment, inspecting mapCenter.Lati[详细]

2023-03-08 05:12 分类：问答
GIS DATA conversion

i am looking for tool make me convert ESRI shapefile to RDF files and this tool can include in Web S开发者_Python百科erver build in C#Not sure what you mean by Shapefile to RDF, but you can use the o[详细]

2023-03-07 18:31 分类：问答
how to find distance between two areas in android

hi all i want to fin out distance between two places.if i go from one place to another place by street by street the distance is vary and suppose i walk within a street the latitude and longitude may[详细]

2023-03-07 17:01 分类：问答
walk through an array from the coordinates (php)

this is my first participation in the list, I\'m the following problem, I have a dynamic query that will always me return an array with n elements, like the example below:[详细]

2023-03-06 05:14 分类：问答
Debug which event is dispatched when I double-click the mouse

I am currently working with a drawing tool for a mapping API, and every time I double-click the mouse a map service will perform a measurement and display the length of the line that I am drawing.[详细]

2023-03-06 00:32 分类：问答
how to make opengl mipmaps sharper?

I am rewriting an opengl-based gis/mapping program. Among other things, the program allows you to load raster images of nautical charts, fix them to lon/lat coordinates and zoom and pan around on them[详细]

2023-03-05 20:54 分类：问答