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Questions tagged [geographics]

Questions on the family of Geo* functions, e.g. GeoGraphics, GeoEntities etc.

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250 questions
14
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1 answer

GeoDistance - higher spatial resolution / precision?

I'm having a small problem with GeoDistance. I've chosen a target city – San Francisco – and I've computed distances from SF to five other cities. Then I draw circles around each city, with radius equal to the distance to San Francisco. The circles…
ConvexMartian
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5 answers

Generating different GeoPaths for multiple equivalent segments

Is there an efficient and elegant method so that multiple calls of GeoPath for the same segment (path) yield visibly separate segments on a map? For instance, this code calls two "equivalent" GeoPaths (from China to Brazil): GeoGraphics[ {Red,…
David G. Stork
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2 answers

How many Capitals are closer to me than my own?

A recent question in chat about "When you are in Aachen, Germany, five other countries capitals are closer than Berlin." triggered me to try to write something to find the cities automatically for whatever city I like. At first, I get all UN…
pH13 - Yet another Philipp
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3 answers

PlotMarkers in GeoListPlot do not work

I try to use GeoListPlot to draw some points on a map. According to the manual, PlotMarkers -> {Automatic,s} should plot the points using the default point markers at size s, but this does not work. Also setting PlotMarkers -> None and Joined ->…
hippo3773
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9
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2 answers

Finding position at given distance in a GeoPath

Is there a way to find the geoposition of a given distance from start in a GeoPath? I want to mark equidistant positions along a track, for example, a mark every 500 km along the path given by path=GeoGraphics[ GeoPath[{ Entity["City",…
Gunnar
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8
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3 answers

GeoBubbleChart Colors

I'm struggling to find a way to change the default background color of a state, say the Netherlands, when using GeoBubbleChart. When using GeoGraphics this is pretty easy. For example, GeoGraphics[{ EdgeForm[Black], FaceForm[Black], …
Daniel Rosencat
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7
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2 answers

Trying to Rotate the North Pole View of a Globe

My goal is to generate diagrams like this. But I would like to be able to rotate the globe about the North Pole, so that I can represent different times of the day. When I use ImageRotate, the results are a little weird. That little black spot on…
David Elm
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7
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3 answers

How to plot a tilted map?

I would like to draw a rectangular map, but the sides are not aligned with the usual geographic grid. For example, the southern New Zealand island is stretched approximately along a diagonal in the usual map. So I would like MMA to produce a map…
Rainer Glüge
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6
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1 answer

Calculating Point Nemo

I am referring to Point Nemo which is the point farthest from any emerged land mass. Some relevant information can be found on this page. I am not sure about -ve signs or whether it is the exact location, but using Google: pointNemo =…
Syed
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1 answer

Automatic GeoZoomLevel

I was wondering what the automatic GeoZoomLevel for Mathematica was. For instance, GeoGraphics[Entity["City", {"NewYork", "NewYork", "UnitedStates"}]] seems to display New York City at a GeoZoomLevel of 10, but GeoGraphics[Entity["Country",…
Michael Wang
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6
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2 answers

GeoGridLines behind Continents in GeoGraphics Plot?

I have the following code to create a Bonne projection of the Earth: GeoGraphics[ { {FaceForm[Red], EdgeForm[White], CountryData["Countries", "SchematicPolygon"]}, }, GeoRange -> "World", GeoProjection -> {"Bonne", {"Centering" -> {0, 0},…
sferics
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1 answer

How to increase map tile image quality at a given GeoZoomLevel?

The answer to this question (121161) increases a map's resolution by increasing the GeoZoomLevel. I need to keep the GeoZoomLevel at the current value but increase the image quality of the tile. That is, keep the same tile image (no additional…
Edmund
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2 answers

Add Text to GeoMarker

I have been going through the documentation of GeoMarker. But I do not see any way to add text to these GeoMarkers. I would like to number them, is there anyway to do this?
Denis Davydov
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6
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1 answer

Geographic coordinate transformation to British National Grid

Before I wade into writing my own function, is anybody able to confirm whether MMA has an inbuilt method for converting longitude and latitude geographic coordinates (as used to specify the position of a point on the earth's surface in the…
Ian
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5
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1 answer

Improving GeoGraphics rendering

I am trying to implement a dummy example of supply chain network design. In particular, some cities are warehouses and others are customers. I want to show the cities on the map, highlight graphically their respective populations and then…
Daniel Rosencat
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