Questions tagged [plot]

a graphical technique for representing a data set. Usually showing the relationship between two or more variables.

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2
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1answer
13 views

How can I plot WorldPopProject data (GeoTIFF) in R with an appropriate scale?

I am a complete beginner to using any GIS tools and struggling through some very basic concepts. I am trying to load data from the WorldPopProject (https://www.worldpop.org/geodata/summary?id=6365) ...
1
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1answer
38 views

Spectral signature and its standard deviation using R

I am trying to plot a spectral signature using R similar to the one shown in the image. This plot was obtained using Semiautomatic Classification Plugin-QGIS. Half-transparent regions show the range ...
2
votes
1answer
42 views

Surf3D, example from ggRandomForests: Random Forests for Regression

I have a model and I want to use the surf3D function in R, and produce a plot similar to the following (the image is the example from "ggRandomForests: Random Forests for Regression"). ...
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2answers
35 views

Exchange of coordinates in GeoPandas

I was plotting some points with the plot function in GeoPandas. I realized that when I plotted using Point.lat, Point.long, the points didn't fall at the right place but when I exchanged the ...
4
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1answer
61 views

Changing raster plot break values text using R

I have the following R code that generates a plot. b <- c(0,30,60,90,120,150,180) rast <- raster("study.area.accessibility.tif") r <- clamp(rast, 0, 180) plot(r, col=topo....
6
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3answers
395 views

Plotting polygons as separate plots using Python

I have a shapefile with several polygons in a geodataframe. I want to plot each individual polygon in their own plot. I tried for pol in z3: plt.figure() plt.plot(pol) plt.show() But this just ...
0
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0answers
75 views

Plotting time series in QGIS

I have a shapefile with points, like this: x, y, id, data -1.3345,-0.4760, 1, data.csv The data.csv contains: date, data 2020-01-01, 1 2020-01-02, 2 2020-01-03, 3 2020-01-04, 4 How can I plot the ...
5
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0answers
427 views

Plotting multiple raster stacks with rasterVis::gplot and ggplot2::facet_wrap

I'm trying to ggplot2::facet_wrap a stack of rasters, and then call geom_raster to add more rasters on top of the previously mapped raster stack. Here is a very simple example dataset to re-create ...
3
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1answer
53 views

Fitting the plotted pixels to the country border in QGIS

I have created a plot in Python 3.7 over Alaska. Firstly, the pixels covered a lot more than shown in the image (below). Now I have set the lat lon extend to fit the plot 'better'. Is there a way to ...
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3answers
385 views

How can I constrain my plot to the extent of the raster image?

I am currently trying to create a multi-panel plot to display six raster images (3,2) using par() and plot(raster()). When I plot the rasters though, R is displaying the Y bounds far beyond what is ...
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0answers
83 views

Plotting city locations on Python 3 [closed]

My question is a follow-up of this: plotting US cities on a map with matplotlib and basemap. I would like to use some Python library to plot on a map city locations, starting from a list like this: ...
4
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1answer
2k views

Plotting a raster stack with ggplot2

My aim is to plot a rasterstack as a single image using ggplot2. First, I apply ggplot on a single layer raster using the following code: #Load packages library(raster) library(ggplot2) #Create a ...
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0answers
17 views

Plot something on lat long in PHP

Is there some sort of plotting system which lets you do this? (in PHP): ex. plot(lat,long,data_show_onhover) My CSV file that I want to plot on the map looks like this: something,something,something,...
3
votes
1answer
64 views

Adding points to QgsRubberBand polyline instead of giving list of points

canvas = iface.mapCanvas() polyline = QgsRubberBand(canvas, False) # False = not a polygon points = [QgsPoint(1,1), QgsPoint(2,2), QgsPoint(3,3), QgsPoint(4,4)] polyline.setToGeometry(QgsGeometry....
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0answers
19 views

Average area calculation differences between raster stack and single Maxent models

I ran 100 bootstrap replicated models, for which I want to calculate the area of suitable habitat based on three different threshold rules (MTP, ESS and MaXSS). The issue I'm having is that for the ...
0
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0answers
32 views

Analyzing NDVI rasters with same dimensions but different extents with Raster Calculator

I have drone sourced remote sensing imagery (NDVI) of a trial site set up to measure yield response to varying nitrogen (N) rates. The trial includes N rates ranging from 0 to 600 kg/ha. The trial ...
2
votes
1answer
187 views

Problem starting the plugin Data Plotly

I'm using QGIS Desktop 3.10.3 with GRASS 7.8.2 I tried to run the plugin "Data Plotly" https://anitagraser.com/2017/12/06/data-exploration-with-data-plotly-for-qgis3/ After installing the plugin I ...
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0answers
61 views

How to plot pies or histograms around points (GeoPandas) containing different level values indicators?

This is my code (a simple sample of df). I'd like to have around each point on a map, an histogram or pie showing the mechanical bikes out of the total. import pandas as pd pd.DataFrame( {'...
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0answers
162 views

Plotting alignment issues with plotting raster list of raster objects and multiple polygons together

I am very new to R and am trying to plot one object from a raster list with multiple polygons (boundary shapefiles) together in one plot. When I resize the plot window, however, the alignment of the ...
3
votes
1answer
260 views

Plot points with coordinates from txt-file [duplicate]

I'm using QGIS 3.12. I have a list of coordinates in txt file, as follows "longitude" "latitude" 48.819056, 2.127009 48.782213, 2.143340 48.801580, 2.355238 48.904471, 2.296038 How to ...
0
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1answer
69 views

Unable use a Temporal Plot Tool in GRASS GIS

I installed GRASS GIS following the tutorial on the website for the Ubuntu 18.04 version. However, the Temporal Plot Tool function is not working, and is giving an error related to python. Below is ...
2
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1answer
186 views

Insert Dataframe data into a map using Geopandas

I posted my question in stackoverflow previously, howeverI think this site is a better place to find some clues (this is my first project with spacial data). I need to insert some coordinates from a ...
1
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1answer
468 views

Rasterio histogram save as image

I have create some histogram using DEM as dataset and rasterio using show_hist to take histogram but I can't find some way to save this histogram as image.any idea? import rasterio from rasterio.plot ...
2
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0answers
27 views

Plotting raster and vector data on same Plot

I have a raster and croped it by vector boundary. Vector reprojected to crs of the raster, but when I plot it does not show on the same figure? Something with plotting extend, but how to make them ...
1
vote
1answer
39 views

Draw edges connecting vertexes (by id) on QGIS

I've been trying to figure out how to draw edges connecting a series of geographical points. There are many solutions that I've thought of but none of them take any advantage of the QGIS tools. ...
0
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1answer
80 views

Problem when import vector data from GRASS GIS within RStudio

I am trying to use GRASS GIS 7.6 within RStudio and import a polygon which is in WGS 84 (EPSG 4326). I have created successfully the location and the mapset in GRASS GIS. When I use the command v....
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0answers
28 views

R: Why is my map including the entire world WSG84 space, when all I want plotted is New Zealand?

This seems to be a very easy problem to solve, but about two hours of searching hasn't led me to the answer. I have a GIS file that I downloaded in WSG84 ESPG:4326. I read in the file using readOGR. ...
0
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3answers
1k views

Google Earth Engine with Folium and Sentinel-1 Plotting

I'm attempting to plot Google Earth Engine Sentinel-1 SAR data in a Jupyter notebook with Python and Folium. To do this I'm trying to combine two pieces of documentation: EE Python Install -> Map ...
3
votes
2answers
95 views

Plotting point every x m2 in polygon using QGIS plugin

I'm trying to work out whether its possible to plot a point every so often within a polygon. For example, if I have a polygon thats 200x200m, perhaps I could plot a point at every meter squared ...
1
vote
1answer
438 views

`tmap` basemap in `plot` mode

I have a raster and I'd like to underlie it with a basemap in tmap. In the view-mode this kind of happens automatically. But when I set it to plot-mode I really struggle to get a basemap. Anyone maybe ...
2
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1answer
212 views

Styling plot items by category in QGIS print layout

I am making a sensitivity atlas which gives me gridded sensitivity values (A to E) for a given area. I am using the atlas functionality in QGIS 3.10 to create several maps showing these sensitivity ...
2
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0answers
69 views

Change the colors of the pie chart in compouse (plot) in QGIS 3.10

When using the new plot command available in QGIS 3.10 for compouse pie chart generation, I didn't find any option to change colors. Is there any way to choose colors?
2
votes
1answer
124 views

How to highlight/shade areas of raster based on specific values, in R

I have a raster with values ranging from 1 to 5 like the following: library(raster) library(rasterVis) library(viridis) my_class <- raster(x=matrix(sample(x = 1:5, size = 12, replace=TRUE),4,3), ...
2
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2answers
49 views

QGIS 3.6 - Deleted Polygons

I'm putting together a large map consisting of some big datasets, and unfortunately deleted some (around 25) polygons from a key layer when editing a smaller version of the map for a different request....
2
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1answer
44 views

Automatic method for placing values of determined column from a SpatialLinesDataFrame near contour lines

I have following vector layer that represents countour lines. With QGIS 3, labels placed near lines (Layer Properties -> Labels) were taken from TEMP_ENE field in attributes table. I would like a ...
2
votes
1answer
2k views

Plotting density map of points?

I have some points and I would like to plot the density map of them. I have tried like this: plt.figure() xedges = np.linspace(540000, 550000, 20) yedges = np.linspace(5200000, 5500000, 20) H, ...
3
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3answers
286 views

Plotting map locations from csv-file

I have a map of a city and a .csv-file containing 700 geographic coordinates pointing to locations within that city. How can I plot these 700 locations on the map?
3
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1answer
1k views

Counting number of points in each grid?

I would like to count the number of points in each cell. I have tried https://docs.scipy.org/doc/numpy/reference/generated/numpy.histogram2d.html but the out isn't appropriate. Does anybody know how I ...
2
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0answers
711 views

Change size to the squares of the confusion matrix [closed]

I have a problem with size in the 'plot_confusion_matrix', the squares of the confusion matrix appear cut off. I would like to solve this problem. svc = SVC(kernel='linear',C=1,probability=True) svc....
3
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0answers
278 views

Changing the color of specific area of shapefile using Python [closed]

I have this map and I need to emphasize with a different color some cities from this map: This is my code: import json import time import geopandas as gpd import adjustText as aT import matplotlib....
1
vote
1answer
3k 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
650 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
43 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....
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0answers
40 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
475 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
62 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
156 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 ...
2
votes
2answers
7k 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
332 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. ...
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0answers
207 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 ...