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9
votes
0answers
102 views

Make the map of rivers and lakes of the country

As I understand,first of all I should to get the country's map and the river's list. To get country map is simple: ...
14
votes
2answers
375 views

How to ContourPlot a function of the coordinates on the Earth's surface on a map projection

There are two similar questions (this and this), but one is too specific and the other is apparently not clear and has no answers. I'll try to make the question more complete. Suppose you have a ...
6
votes
2answers
200 views

How can I output the coordinates of a city in coordinates of the Mercator projection?

On Mathematica version 8, I would like to use CountryData and CityData to mark Paris on a polygon map of France in the Mercator ...
2
votes
1answer
161 views

How can I make a map of Sierra Leone at the district level?

Hi I am trying to make a map of Sierra Leone and am running into trouble. SL has 4 provinces: Northern, Southern, Eastern, and Western, which are diced up into 14 districts as shown here: ...
2
votes
1answer
473 views

Mapping points on the unit circle

I have a set of points P that are evenly spaced on a square grid of length 1... I would like to map these points to the circle of radius 1 as nicely as possible, while preserving relative positions ...
3
votes
0answers
296 views

Travel time sweet spot using: Mathematica and Google Maps API

I want to use Mathematica to do some time minimisation calculations calling on Google Maps API for travel time data. I'm concerned with travel time, e.g. along roads (by car or walk) and not linear ...
20
votes
1answer
761 views

xkcd: Geohashing in Mathematica

On May 21, 2008, an xkcd comic proposed a method for creating a random, local meeting place that can't be determined until the day of the meeting. This method is usually used for xkcd fan events, ...
0
votes
0answers
175 views

How can I solve this system of functional equations?

I would like to use Mathematica to find maps a, b, c, d, e, f such that ...
4
votes
1answer
602 views

iterating piecewise linear maps on [0,1]

I have been trying to make code work for iterating piecewise linear maps on the unit interval in Mathematica to compare with MATLAB and Maple. Tent and logistic maps are easy to implement but ...