Questions tagged [plotting]

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48 views

Inaccurate georeferencing when plotting raster files using rasterio

I am trying to develop a plot of a raster image with a background map. I used rasterio for reading the raster file and contextily for obtaining the background map following this tutorial. The plotted ...
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0answers
63 views

Plot a discrete raster over a hillshade using ggplot2

I'm having a hard time fixing a somwhat simple ggplot. I have a raster of a hillshade and I would like to overlay it with a classified prediction raster with the viridis color scheme. My code at the ...
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1answer
35 views

R: ggplotting st_cast(“MULTILINESTRING”) lines: ends points connected to starts, undesirably, why?

I have the lat-lon positions of various individuals. When I plot multiple individuals at the same time, I see odd lines over land, and have been investigating why. It transpires that plotting ...
1
vote
1answer
77 views

Why are my circles plotted on maps, using buffer data from GeoPandas, not the same size as if I plot on Google Earth?

I am using GeoPandas and matplotlib to plot some circles of desired radius around a set of points. I find that the circles are not the right size on the maps, but the equivalent sized circles drawn on ...
1
vote
1answer
46 views

Blank spaces in large format plotter prints

I keep getting a blank swath when printing large format pdf files to my plotter. I am trying to plot a single page that is 42" (maximum width of roll for this plotter) by up to 120" in ...
1
vote
0answers
49 views

Plotting points of restaurant locations onto NYC Taxi Data Shapefile Plot [closed]

I'm trying to plot the locations of restaurants in NYC onto the plot of NYC boroughs that I made from the shapefile provided by the NYC Taxi Data website using Rstudio. I don't understand why it is ...
0
votes
1answer
42 views

Using Google Earth to figure out the coordinate reference system from only lon, lat information

Lately, I've been trying to use lat/long information to plot on QGIS without any good results because I lack the correct EPSG code for the coordinate reference system. This is not the case with Google ...
0
votes
1answer
99 views

XY points not displaying

Using ArcMap, I am trying to add a series of co-ordinates to a map to show the distribution of shelf seas I am analysing. However, when I go through the process of adding XY data to the basemap, it ...
2
votes
1answer
475 views

AIS Data Gaps - plotting as lines in QGIS

I am currently attempting to plot AIS data from our on board AIS receiver in QGIS. (https://en.wikipedia.org/wiki/Automatic_identification_system) My current processing steps are :- Import the AIS ...
3
votes
2answers
1k views

Plotting lon/lat point (without manual conversion) on XY map using GeoPandas?

I am data scientist not experienced in GIS and need to do some simple map plotting of the Netherlands. Using Geopandas everything works out nice and dandy for my purposes however I am stuck on 1 ...
3
votes
1answer
2k views

Creating chloropleth maps in geopands with 'user_defined' bins

As suggested in the geopandas mapping tools documentation, I want to create a chloropleth map using a custom defined bin sizes: world.plot(column='gdp_per_cap', cmap='OrRd', scheme='user_defined') ...