Anyone have a solution, preferably free, to be a开发者_运维问答ble to take anyone hitting the site from a non-usa IP address and send them to a page saying \"For US visitors only\"?See this tutorial.
Given a set of latitude and longitude points, how can I calculate the latitude and longitude of the center point of that set (aka a point that would center a view on all points)?
i need a help i have a shape file that continue 3716 polygon record and want to draw this shape file where some of those polygons need to have a specified color
I\'m looking for 开发者_运维问答the best/easiest way to programmatically grab the name of the US county a given US city resides in. It doesn\'t seem there\'s a straightforward API available for such a
I am using the following code to extract the geolocation of an image taken with an iPhone: from PIL import Image
I\'ve got millions of geographic points.For each one of these, I want to find all \"neighboring points,\" i.e., all other points within some radius, say a few hundred meters.
I\'m tring to calculate a point\'s longitude from the other point\'s longitude. They have the same latitude and the distance between them is known. I try to use the sperical law of cosines formula.
I\'m working on a product which heavily relies on Geo-Data to map locations of \'places\' matching a certain criteria.
As it currently stands, this question is not a good fit for our Q开发者_JAVA技巧&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely so
For example if we have the开发者_C百科se set of coordinates \"latitude\": 48.858844300000001, \"longitude\": 2.2943506,
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