gis

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Displaying GPS position data on map

I am developing a GPS tracking system. I have managed to develop the TCP server that captures the data in NMEA format and split it accordingly then stored the data in a mysql database. The lat and lon[详细]

2023-04-13 08:40 分类：问答
Is there a way to access to the database of Google Maps for the public transport?

I\'d like to have access to the numbers and type of public transportation and for each of them, their stops of a certain city. So for instance, I\'d like to have :[详细]

2023-04-13 08:27 分类：问答
How to create a polygon from a central point with GeoDjango

I want to create a polygon from a point and a radius. For example, I want to be able to give a point (latitude, longitude) with a given radius (ex. 10km) and calculate the circle and store it as poly[详细]

2023-04-13 04:25 分类：问答
joining coordinates

I have two sets of coordinates lat1 is 144.9216 lat2 is 151.0393 long1 is -37.7784 long2 is -33.8131 These are the coordinates for Melbourne and Sydney. I want these two sets of points to be connec[详细]

2023-04-12 11:07 分类：问答
Geography/Location dimension table for datawarehousing

Is there a place I can view or do开发者_运维技巧wnload the geography dimension for data warehousing purposes?if not how do I go about creating one?[详细]

2023-04-12 09:12 分类：问答
GIS to get information for specific bb box/zoom level

Please feel free to correct any miss used words in this post, as I\'m not familiar in such areas, I use words to the best of my knowledge but they\'re probably wrong.[详细]

2023-04-12 05:35 分类：问答
Avoid geocode limit on custom google map with multiple markers

I\'ve created a custom map with around 150 markers. It only plots around 20 or so before it hits the geocode limit.[详细]

2023-04-10 07:21 分类：问答
Bing maps with world spanning polygons not working in IE7 and IE8

I have an application using Bing Maps that draws polygons on a map. For most polygons, the system works fine, and shows the shape correct. However, with huge polygons (covering almost the entire plane[详细]

2023-04-09 07:35 分类：问答
GIS: How to read METAR & TAF values to get the pressure at sea level?

I have this link on how to get the altitude in Android -> SensorManager.getAltitude(pressure at sea level, atmospheric pressure)[详细]

2023-04-08 03:57 分类：问答
gIntersects TopologyException in rgeos R

I have a shapefile that represents ecoregions of the world. I am trying to determine which ecoregions are intersected by the distributions of my species of interest. I am using the latest 开发者_开发百[详细]

2023-04-06 18:58 分类：问答