Questions tagged [geographics]
Questions on the family of Geo* functions, e.g. GeoGraphics, GeoEntities etc.
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How do I apply GeoRegionValuePlot to a grouped Dataset?
I have a database like the one under this question which I transform into a Dataset by applying
...
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1answer
31 views
Why do some Administrative Divisions fail to translate into Entities?
I am trying to prime the following list into a database to run some geo-stats:
...
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3answers
50 views
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Ideas for visualizing the shape of a random walk
Context:
In the context of (3D) random walks or polymer chains, a useful quantity for capturing and characterizing the shape of the walk or the conformation of the polymer in space is the gyration ...
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How to show the name and data in a customized map?, with GeoRegionValuePlot
How to show the name of each division and data/values (even customizing the TextStyle for adapt to different sizes) ?. Show all the data, not only when the mouse is over on a region.
Or how to add ...
10
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2answers
586 views
Distance measures on a map of a game
I have an image which my DM made of map for a DND game and I want to do two things.
Click on two points on my map, then based on the key for scaling have Mathematica tell me how far apart those ...
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0answers
48 views
Use country flag in chart style for a bar chart
I am creating a stacked bar chart from 2017 using the following data set
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11
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1answer
167 views
Plotting cities with Callout labels on a globe?
This question essentially amounts to implementing a very basic version of GeoGraphics3D:
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2
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0answers
31 views
Logarithmic scale in the legend of a GeoRegionValuePlot
Is there a way to make the bar legends show the values 1 to 9000 using a logarithmic scale than what Mathematica is automatically giving me? Here's my plot:
The data I am using:
...
2
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0answers
37 views
GeoRegionalValuePlot optimization
I have the following piece of code that plots a colormap by zipcode.
Zips is an array of zip codes (All in the US mainland) and testscore is just some made up data for testing purposes.
The list of ...
5
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1answer
101 views
Implementing GeoCallout?
Building off of a related question, I'm looking for a robust way of using Callouts for multiple locations in Geography. For example, I want to plot cities and their ...
6
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1answer
221 views
Geography in 3D perspective
I would like to build a GeoGraphics map showing a z-elevated perspective (e.g. the view from a plane). Specifically, I'm looking to use multiple ...
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1answer
53 views
2
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1answer
63 views
The Text in GeoMarker
In continuation the topics 1 and 2: I had the map "EKB" and I needed to mark some objects. Just for example:
AES=
TECgas=
<...
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1answer
61 views
The specific GeoMarker from DataSet [closed]
With reference to this related topic, I have a map (called EKB):
EKB=
The coordinates of the map corners:
...
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0answers
63 views
GeoHistogram with Graphics [closed]
The GeoHistogram function appears to use different coordinates to graphics, so that when you overlay they do not have the same origin.
For instance, if I use ...
3
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2answers
160 views
Placing markers on geographic map
I need to mark some objects in accordance with their coordinates (for example, in the form of blue point). And I found out two ways to realise it:
Option 1.
If I have the necessary map (called "EKB"...
3
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1answer
43 views
GeoPosition of a point a specified GeoDistance away
I am trying to plot text on a GeoGraphic[] at a certain distance from a defined point (located at Interpreter["Airport"]["KEWR"] ...
3
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0answers
44 views
Geographics Geolabels and Polygons
Using Vers. 11.3.0, I've prepared Maps of the various Japanese Prefectures (ken). Here, I create 3 such maps, as follows:
...
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0answers
55 views
GeoGraphics unable to download data for a given ranges from the Wolfram geo server [closed]
Lately I'm having problems evaluating GeoGraphics functions in Mathematica (version 11.3). For example, when I attempt to evaluate:
...
2
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1answer
43 views
Constant disk size on GeoGraphics Image
I would like to know how to generate a constant disk size on a GeoGraphics image. Currently my code is something like this:
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1answer
94 views
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0answers
49 views
Importing and and manipulating large GEOJSON files based on geographic locations
I have large GeoJson data files that I would like to import (i.e. buildings in a city, see image below for data structure) and then "cut out" only the buildings that are within approx. 100 GeoDisks (...
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2answers
94 views
How to insert short version of county names into a Geo Region Value Plot map
I have the following counties in Florida :
...
2
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1answer
107 views
For loop within GeoGraphics
I'm trying to plot a map with a list of destinations as Disks.
I first input the cities into a list such as:
...
9
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2answers
125 views
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 ...
7
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2answers
169 views
5
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1answer
49 views
BarLengend for GeoStyling[“ReliefMap”]
I would like to add a BarLegend for the elevation values used by the GeoBackground -> GeoStyling["ReliefMap"] option of ...
4
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2answers
211 views
How to get this Europe map using Mathematica?
I need to generate a Europe map with given lattitue limit and longitute limit as shown in the attached figure. I want the map to be more detailed and colorful (attractive).
Furthermore, if I want to ...
2
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1answer
57 views
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5answers
225 views
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 ...
3
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1answer
63 views
Image Adjustment wipes out overplots?
I'm having a problem where when I display lines over an image (using Show) it works fine, but if I adjust the image colors first (using either ...
2
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1answer
85 views
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0answers
55 views
GeoGraphics Question
I have the new and I have the following (simple) questions:
I want to align the label (example Netherlands with flag) to be drawn at the graphics boundaries.
Make an arrows between the label and the ...
8
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0answers
67 views
Adding a new GeoProjection?
The documentation for GeoProjectionData gives a list of supported GeoProjections. I was not able to find any documentation on ...
3
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1answer
56 views
Matching Aspect Ratios between two GeoGraphics with Entities for GeoRange
I'm making a basic 50-state map of population (using a log scale). Given the usual crucible of figuring out what to do with Hawaii and Alaska, I thought I would make the same ...
8
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1answer
107 views
How to make GeoListPlot rectangular?
I have a GeoListPlot as below:-
gr = {{20, 70}, {-30, 30}};
GeoListPlot[Entity["City", {"Paris", "IleDeFrance", "France"}], GeoRange -> gr]
As you can see, ...
3
votes
1answer
42 views
How to get the coordinates of the 4 vertexes of a GeoListPlot?
I have a GeoListPlot as below. How can I get the latitude/longitude coordinates of the 4 vertexes of the GeoListPlot? I need the ...
0
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1answer
54 views
Problem with resolution of exported image
I want to make a map (of Germany) with certain positions marked. This is just a MWE, in fact there are much more positions. What I did:
...
5
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1answer
61 views
How to remove the undesired border of the GeoGraphics?
I have created an image of Europe as below:-
...
1
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1answer
53 views
GeoGraphics added to a current GeoGraphics object
I need to make a GeoGraphics[] object then save it to disk, move it to another computer where I need to load in the object then add some more ...
4
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1answer
113 views
How to use GeoStyling[“OutlineMap”] as GeoBackground for GeoHistogram?
Say I have some location data.
SeedRandom[123]
locs = GeoPosition[
Reverse[RandomPoint[Rectangle[{-88.6273, 29.6616}, {-84.2036, 32.7994}], 400], 2]]
I want to ...
0
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0answers
61 views
Overlap contourplot and world map [duplicate]
I am trying to plot a list of {latitude,longitude,f(latitude,longitude)} values over a mercator projection. I tried a generic periodic function in spherical coordinates, but the output looks wrong. I ...
0
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0answers
61 views
Mapping votes in 2016 US election
I want to use Mathematica to plot a map of the 2016 US presidential votes, shaded by county rather than state - i.e. like the wikipedia image:
...but zoomed in on just the south-east of the US. Is ...
7
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2answers
251 views
Map of Ancient Rome
I managed to generate a map of the Italic Peninsula with the borders corresponding to 250BC. Is there a way I can shade the area of the Roman empire of the time?
...
1
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1answer
109 views
A Mathematica analog to drawing an ellipse in AutoCAD
My real name is Wilhelm Doofenschmirtz. While my cousin is busy taking over the tri-state area, I am attempting Illinois. What I am trying to do is figure out an easy way to make an ellipse over a map,...
6
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1answer
121 views
Automatic GeoZoomLevel
I was wondering what the automatic GeoZoomLevel for Mathematica was. For instance,
GeoGraphics[Entity["City", {"NewYork", "NewYork", "UnitedStates"}]]
seems to ...
3
votes
1answer
89 views
Difficulty using pre-made plots with Manipulate
I am using the GeoGraphics function to create a "Hammer" projection of the sky to plot astronomical data. Since every data set has to be mapped using the Hammer projection algorithm individually I am ...
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0answers
49 views
GeoTiff data import problem, bug?
I imported land cover classes from a GeoTiff file created in QGIS, where the classes are coded by discrete values (NLCD nomenclature). But it seemed the import function mirrors the values (maybe a bug)...
3
votes
1answer
112 views
GeoArea of an Intersection
I am looking to calculate the geographic area of an intersection of a GeoDisk with a geographic entity such as a county.
I was hoping for a simple construct like:
...
