Questions tagged [plot]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
74 views

Adding legend title in plot function of R

I use plot function to plot a raster in R. The plot function adds a legend as default. However, the default legend added does not have a title. For instance I need to add the unit such as meters. I ...
0
votes
1answer
37 views

Making raster histogram excluding zeros in R?

In R, can I make a histogram of all the non-zero values in my raster? Some reproducible data below. I just want the histogram to be made with the zeros. Happy with a way to do that, or I guess to ...
0
votes
1answer
30 views

Unable to plot in R some locations over a shapefile

I have a shapefile of polygons that I got from here, and a CSV file with longitude, latitude data (i.e. lon= -71.4; lat=42.5). The shapefile has the following CRS information: "+proj=lcc +lat_1=41....
1
vote
0answers
30 views

Plotting with QGIS, blank positions result in errors

I tried to use the delimited text layers, then I found something wrong. Several plots are out of bound. Then I checked the original data and decoded data. It seems when one part of a single data is ...
1
vote
1answer
100 views

Creating PNG images using QGIS 3 pygis

Some days ago I upgraded from QGIS 2.18 to 3.6.0 - not knowing that many Python scripts won't run without modifications. I could convert all of them but not this one: from PyQt4.QtCore import * from ...
1
vote
1answer
39 views

QGIS transparent layers plot as solid opaque - solution? [closed]

I have been trying to plot from QGIS to a HP Designjet T120 plotter using Win10x64, but the transparent layers of my QGIS project appear as solid opaque on the plot. If I plot to PDF to transparent ...
3
votes
1answer
41 views

How might one optimise geospatial operations on complex polygons, especially plots in R?

Question: I'm attempting to run some simple plots on some shapefiles with a high number of complex polygons. These aren't massive files - for the example below, the shapefile is 70mb (15872 obs), but ...
1
vote
1answer
542 views

How to use st_buffer?

I would like to calculate a buffer of 5km around country polygons. However, I somehow always get a warning and an error. Here is a reproducible example code. library(sp) library(sf) library(tmap) ...
2
votes
1answer
93 views

Expand plotting area of raster::plot

I have a raster that I'd like to plot in the Azimuthal Equidistant projection with a grid and labels. So far I've been able to do that. However, I cannot get the labels inside the plotting area. ...
1
vote
0answers
90 views

Multipanel with raster (spplot) and scatter plot in R

I have one raster and one scatter plot that I want to put together in a single multipanel plot. However, the par(mfrow=c()) that usually works to put together different normal plots, it doesn't work ...
0
votes
0answers
21 views

Plot/Chart a related table in a pop up with ArcGIS Pro

I would like to plot a time series related to a line feature in a pop up. So when I click on a line, the associated time series should be plotted in a pop-up. Example: My line feature with only 1 ...
0
votes
1answer
46 views

Extract a list areas and indices of multi-part polygons (SpatialPolygonsDataframe) R

I'd like to extract a list of polygons from a SpatialPolygonsDataFrame that include more than one area (so a polygon with a hole for example, or just 2 areas in one polygon entry in general). There ...
0
votes
1answer
33 views

Plot a series of subsetted pixels from a raster stack in R

I have created two raster stacks and would like to plot a row or column of pixels through the stack, but am not sure how to approach this. I know I can subset by layer, but how do I subset ...
0
votes
1answer
224 views

Legend Key for discrete values in spplot

I have a shapefile with various attributes. I want to plot the shapefile using `spplot'. I first read the shapefile A <- readOGR('myshapefile.shp') I am using the following command: p <- ...
0
votes
1answer
319 views

Adding labels to raster with levelplot and spplot

I am trying to add district labels for a country, which I am plotting using levelplot (to use worldclim precipitation data) and adding boundaries using spplot. I am having trouble adding text labels ...
3
votes
1answer
1k views

How can I superimpose a geopandas dataframe on a raster plot?

I have a geopandas dataframe countries with country polygons, and a raster dataset raster (read with rasterio). I've already aligned the two as follows: countries = countries.to_crs(raster.crs.data) ...
1
vote
2answers
1k views

Remove internal boundaries in spatial object/polygon for plotting

I am trying to plot a spatial object where only the outer boundaries/borders are plotted. The only way I can think to do this is by manually removing all the lines/points within the spatial object and ...
2
votes
1answer
99 views

How to display multiple plots in R Scripts running in QGIS

While plotting in R in QGIS, only the latest plot appears in 'Result viewer'. What do I do to get all the plots done during script running? Here's the code: ##showplots bin_arr <- c("C:/Users/...
1
vote
0answers
149 views

Show charts and plots in plugin

I'm creating a plugin to guide a user though a GIS analysis process. One of the things the user wants is the ability to display "charts" of the resulting data sets. I'm looking to build simple ...
1
vote
0answers
154 views

Invert the legend scale representation [in R environment]

Through the following code, cols <- (heat.colors(255)) plot(raster_sum3, col=cols[round(seq(1,255,length.out=10))], legend=TRUE) # raster of the study area plot(site_3003, add=TRUE) # site ...
0
votes
0answers
53 views

gnuplot in GRASS GIS

Does somebody know how to make gnuplot visible in console? I would like to use some GRASS GIS commands and create plots, for example using i.spectral, but it does not see the gnuplot installed.
0
votes
0answers
237 views

QGIS: How to plot a GPS track color-coded by the altitude (or any other value like speed, …)?

I have GPX files recorded from various treks. I want to plot them on a QGIS map and have the color of each track segment modified by the altitude recorded. An idea of the result I am looking for is ...
2
votes
2answers
115 views

Hacking QGIS plugin Midvatten to allow capacity explanation label on stratigraphy plot?

I have been trying to make a local addition to the python code for QGIS plugin Midvatten to allow labels on the stratigraphy plot that give the capacity explanation rather than the capacity value. In ...
0
votes
2answers
2k views

Categorical Legend raster plot - R

I have the following RasterLayer containing categorical values for each pixel. I am using the following code to plot it par(xpd)=FALSE plot(LC, legend=FALSE, col=c("lightcyan3","royalblue","...
2
votes
1answer
170 views

QGIS Midvatten stratigraphy plot issues

When I use the stratigraphy plot function in Midvatten on an East Anglian coast quaternary data set (West 1980) that I have been digitizing, I find that the upper layers of strata disappear at the top ...
1
vote
1answer
2k views

R tmap package: basemap not working

I want to use the package tmap to plot a simple shape with a basemap (e.g. OpenStreetMap). According to the help page of tmap this should be able by using tm_layout(basemaps = c('OpenStreetMaps')) ...
4
votes
1answer
396 views

How can I create a multi-dimensional spectral plot using R?

I have a raster stack of several layers such as NDVI, Slope, texture, and TCT bands, and would like to create a multi-dimensional spectral signature plot from my ground thruth points representing ...
3
votes
1answer
2k views

Change Color in GeoPandas Plot

My question has overlap with Changing colours in GeoPandas?, but unfortunately still unanswered: I want to plot a multiline shapefile in 1 color. import geopandas as gpd multiline_example = gpd....
2
votes
1answer
1k views

Plot two rasters with different extents

I have two rasters with different extents that overlap partly: ext1 <- extent(99500,700500,249500,600500) ext2 <- extent(1356,643990,269903,690810) #create rasters rr1 <- raster(matrix(...
3
votes
1answer
955 views

Converting Northings/Eastings to Longitude/Latitude using R issue with Northern Ireland?

I have found a lot of questions about conversions of Northings/Eastings to Longitude/Latitude in R. I have been working with this tutorial from Alex Singleton which is really useful in explaining the ...
1
vote
1answer
442 views

Logarithmic raster with a non-logaritmic legend in R

Following the example under: library(sp) library(automap) loadMeuse() demo(meuse) # Ordinary kriging kr = autoKrige(log(zinc)~1, meuse, meuse.grid) spplot(kr$krige_output,'var1.pred') I get a plot ...
2
votes
1answer
5k views

R plot raster: changing breaks also changes colour scale

I am trying to change the breaks of a raster in R that is show with a continuous scale. However, changing just the breaks also changes the colour scale. I am not sure how I can fix this? library(...
1
vote
1answer
228 views

R: plotting 2 polygon shapefiles, problems with CRS & extent

I am trying to create a map using 2 shapefiles, both of which have been subset. I am plotting municipalities of a census district in Canada. For the census district, I am using the [census division ...
2
votes
2answers
1k views

Plot raster using raster attribute in R

I would like to plot a raster in WGS84 projection using R based on its attribute value. Here is the whole procedure library(maptools) library(rgdal) library(raster) shp <- readOGR("...
1
vote
1answer
183 views

Plotting map in R that looks old (yellowish and stained)?

I want to make a map in R that appear old (yellowish and stained). For example: Is it possible to achieve this effect entirely within R rather than bringing a map into an image processing program ...
2
votes
3answers
1k views

Adding a legend to points in the tmap package

I am trying to create a map with several points (about 20), where each point will be represented by a number, and where a legend will have these numbers and names of my points. Is it possible to do ...
5
votes
1answer
998 views

Slow plotting of spatial data in macOS RStudio's plotting device

In my macOS system RStudio, plotting spatial data (statialpolygons, points and lines) is extremely slow, making it impossible to work with. When I try to plot the shapefile in this link (@https://...
0
votes
1answer
407 views

r- Compress/ Speed up large Spatialpolygonsdatafram

I am brand new to R and GIS and I ultimately am not doing anything to complicated (for now) but have been struggling with even the most basic task! I'm simply trying to plot a map of the US states. I ...
1
vote
1answer
166 views

Slow plotting SpatialPolygonDataFrames on some systems

I have noticed that my personal computer is very very slow plotting SpatialPolygonDataFrames. I made a question about this issue on the general Stack Overflow, and with the answer I got I ended up ...
1
vote
1answer
1k views

Ploting Multipoint with Geopandas

I created one geodataframe with geopandas. The geometry field was filled with Multipoint. However, when I try to plot the map to see multipoints, my map returned empty. How can I plot geometry field (...
3
votes
1answer
1k views

Plot many rasters on the same graph, one on top of the other, using a certain angle in R

I wish to create a plot with multiple raster layers in R, but plot them in a certain angle so that all layers can be properly seen. What I have in mind is a plot like the following, taken from here: ...
2
votes
1answer
664 views

Adjust text font size in plotting autofitvariogram in R?

It should be quite simple to adjust the font size in plotting the outcome ofautofitVariogram using the automap package. The text fonts for the number of pairs are too big; the text fonts for the model,...
2
votes
2answers
463 views

Plot spectral signatures to compare with signatures from field spectrometer

What software I can use to plot the spectral signature of a Landsat 8 or Sentinel 2 pixel to compare it with the spectral signature of a field spectrometer (HR2000+)? How can I do this?
6
votes
1answer
6k views

Cannot get plot() in geopandas to produce a map of the GeoDataFrame

I have installed all the necessary and optional modules for geopandas (with the exception of rtree) as listed at http://geopandas.org/install.html I am following the tutorials from this site and also ...
4
votes
2answers
6k views

How to add labels to shapefile point layer in R?

I have plotted a shapefile containing points in R, and I would like to add labels like : point 1, point 2 and so on..) to the plot. Is this possible?
0
votes
0answers
43 views

When the mouse moves on the grid, so does the corresponding point on the map

I am trying to create a specific functionality in mapping application. The application currently lets users draw a profile line on a map and click run. The map then takes a DEM file and creates a ...
1
vote
2answers
504 views

R GIS layers not lining up (spplot/plot)

I'm trying to make a choropleth in R using a polygon file, with a points layer of local care homes on top. When I plot each layer individually they're fine, however when I put them both together (...
1
vote
1answer
580 views

Plot multiple buffers around points

I have three buffer radius sizes radius<-c(1000,700,500) that I have placed around an array of points (two example points are given here in the file SourcePlace). What I'd like to do is ...
1
vote
1answer
554 views

Plotting Geotagged Photos in MapInfo?

I am not a MapInfo user, but I have been asked whether that software can plot geotagged photos and link the images to the points (eg, click on a point and the photo pops up)?
3
votes
1answer
1k views

Set NaN values to Transparent in Matlab 'geoshow' function?

I am trying to plot rainfall values in MATLAB using geoshow function. NaN values should be transparent in the map. However, the plot I am getting comes with dark blue color for NaN values. I have ...