Questions tagged [shapefile]
The Esri shapefile or simply a shapefile is a popular geospatial vector data format for geographic information systems (GIS) software. Questions about shapefiles are best asked on the GIS Stack Exchange.
2,028
questions
71
votes
7
answers
125k
views
Best way to overlay an ESRI shapefile on google maps?
What is the best way to overlay a shapefile in Google Maps?
After some reading suggests that, converting shapefile into KML and overlaying KML in Google map is an option. If that is the case, how do ...
- 719
61
votes
5
answers
47k
views
Does anyone know of a library in Java that can parse ESRI Shapefiles?
I'm interested in writing a visualization program for the road data in the 2009 Tiger/Line Shapefiles. I'd like to draw the line data to display all the roads for my county.
The ESRI Shapefile or ...
- 67k
47
votes
3
answers
104k
views
Need the path for particular files using os.walk() [duplicate]
I'm trying to perform some geoprocessing. My task is to locate all shapefiles within a directory, and then find the full path name for that shapefile within the directory. I can get the name of the ...
- 883
38
votes
4
answers
52k
views
How/Where do I get geoJSON data for states, provinces, and administrative regions of non-US countries? [closed]
I need geoJSON formatted paths for states, provinces, and regions within multiple countries. Most readily available geoJSON data is for US states and country level boundaries, not regions within the ...
- 1,419
37
votes
4
answers
40k
views
sp::over() for point in polygon analysis
I have a shapefile named "ind_adm" and a SpatialPointsDataFrame called "pnts". The "pnts" contains points generated at random, and some of the points overlap with the polygon. See picture below.
Now, ...
- 4,067
37
votes
2
answers
54k
views
Clipping raster using shapefile in R, but keeping the geometry of the shapefile
I am using {raster} to clip (or crop) a raster based on an irregular shapefile (the Amazon biome) but the output always has a rectangular extent. However, I need the output in the exact same geometry ...
- 657
29
votes
7
answers
52k
views
Check if a geopoint with latitude and longitude is within a shapefile
How can I check if a geopoint is within the area of a given shapefile?
I managed to load a shapefile in python, but can't get any further.
- 445
25
votes
3
answers
39k
views
Shapefile into geojson conversion python 3
output_buffer = []
for features in range(0,layer.GetFeatureCount()):
feat = layer.GetNextFeature()
geom = feat.GetGeometryRef()
result = feat.ExportToJson()
output_buffer.append(result)...
- 405
25
votes
7
answers
72k
views
Is there any free DBF file converter? [closed]
I have only found trial versions of these converters. Does anyone know a free one? Any of the following target formats will do:
CSV, MDB, SQL, XLS
- 89.4k
24
votes
4
answers
47k
views
Set SHAPE_RESTORE_SHX config option to YES to restore or create it
I am not able to read the shape file. It says no such working directory.
!pip install sentinelsat
!pip install geopandas
!pip install folium
from sentinelsat import SentinelAPI
user = '****'
...
24
votes
1
answer
22k
views
Create convex hull polygon from points and save as shapefile
Needing some help re a conversion problem in R.
I've got calculated the convex hull of a cloud of points. I'd like, from the points forming the convex hull, to build a polygon object and save that as ...
- 811
20
votes
5
answers
9k
views
Different legends and fill colours for facetted ggplot?
Sorry for not included any example data for my problem. I couldn’t find a way to easily produce an example shape file. Hopefully, experienced users of ggplot can see what I’d like to do from the ...
- 2,813
19
votes
6
answers
24k
views
Shapefile reader in Python?
Are there any libraries that I can use to read a shp/shx/dbf/sbx set of files? I mainly need to extract some polygons but something that lets me extract any data that I want would be awesome.
- 3,015
19
votes
7
answers
38k
views
Error opening SHP file in R using maptools readShapePoly
I am new to R and was following the following tutorial on the ggplot2 package found here. However the readShapePoly() function throws an error whenever I try to load the basic shapefile. I have used ...
- 191
18
votes
3
answers
31k
views
Intersecting Points and Polygons in R
I am working with shapefiles in R, one is point.shp the other is a polygon.shp.
Now, I would like to intersect the points with the polygon, meaning that all the values from the polygon should be ...
- 2,392
17
votes
1
answer
21k
views
Add Polygons to R shiny leaflet map
How do I add polygons from Global Administrative areas, so they are clickable.
The simple way describe in the docs that I tried is
adm <- getData('GADM', country='UKR', level=1)
leaflet() %>% ...
- 3,700
16
votes
4
answers
9k
views
How to generate shapefiles for H3 hexagons in a particular area
I would like to generate shapefiles for H3 hexagons in a specific geographic area. Particularly, I'm interested in the Bay Area with resolutions = 6, 7 and 9. How can I create the shapefiles for the ...
- 161
16
votes
3
answers
10k
views
Python: how to create a choropleth map out of a shapefile of Canada?
My goal here is to create a choropleth map of Canada in Python. Suppose I have a dictionary with values referring to each Canadian province/territory:
myvalues={'Alberta': 1.0,
'British Columbia': 2....
- 7,759
15
votes
2
answers
17k
views
Which C++ library for ESRI shapefiles to choose?
Does anyone have an experience in processing (reading) ESRI shapefiles from C++?
I have found at least 2 open source libraries: ShapeLib C library and OGR. Which one is better? Does anybody used one ...
15
votes
1
answer
17k
views
R How do I merge polygon features in a shapefile with many polygons? (reproducible code example)
How do I merge polygon features in a shapefile with many polygons?
rbind and union just combine the rows of the shapefile features, they don't actually merge the polygons themselves.
Desired result ...
- 2,871
14
votes
1
answer
8k
views
Reading shape file with sf::st_read fails to capture encoding UTF8
I want to read a shape file which is encoded in UTF8. It works fine when I read it using rgdal::readOGR but sf::st_read fails to get the correct Encode. Any suggestions on how to solve this?
For a ...
- 13.5k
14
votes
1
answer
23k
views
Changing the Projection of Shapefile
I am trying to change or assign the projection of a Germany-Shapefile from NA to +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0, but somehow it doesn't work well.
Reproducible ...
- 1,647
14
votes
4
answers
25k
views
Read shape file with readOGR verses readShapePoly
I have read a shapefile using readShapePoly in the maptools package, but cannot read that same file with readOGR. I am hoping someone may be able to help me read the shapefile with readOGR.
I ...
- 12.8k
13
votes
4
answers
38k
views
GDAL, ogr2ogr "Cannot find proj.db" Error
I've tried to extract certain country from the world shp file from natural earth.
I am currently using windows 10, so I installed python 3.7, gdal to use the ogr2ogr.
I typed the below code in the ...
- 133
13
votes
1
answer
12k
views
Get feature extent using gdal/ogr
This feels like something that should already have a function to do easily, but I can't find one.
What I'm ultimately trying to do: I have a shapefile with 3 features that show bounding boxes; I want ...
- 525
13
votes
1
answer
44k
views
in R, save a shapefile
I would like to save a shapefile after a manipulation.
First, I read my object
map<-readOGR("C:/MAPS","33SEE250GC_SIR")
After this, I subset my shapefile:
test <- fortify(...
- 625
12
votes
1
answer
2k
views
Problems converting from shape to topojson
I'm trying to convert a shapefile of mexican municipalities into a topojson and displaying it using d3.js using this tutorial http://bost.ocks.org/mike/map/#converting-data. I've managed to convert it ...
- 819
12
votes
1
answer
4k
views
Creating shapefiles from points in data frame
After reading a lot of posts and websites I can't find out how to create a polygon shapefile from my lon-lat data table. I would like to create maps like this one.
My csv data file contains longitude,...
- 5,111
11
votes
2
answers
20k
views
How to Import shape file into MySQL
I need to import the spatial data in shape file into MySQL tables. I am able to import into PostGreSQL. Any pointers for MySQL. I need the data in MySQL table.
- 835
11
votes
5
answers
5k
views
Random error: Attempted to read or write protected memory
We have a C# .Net application using WCF services. And the application is deployed in our production server under a Windows Service Application. One part of the module is responsible for creating ...
- 3,730
10
votes
4
answers
15k
views
combining multiple shapefiles in R
I have a folder with about 100 point shapefiles that are locations obtained while scat sampling of an ungulate species. I would like to merge all these point shapefiles into one shapefile in R. All ...
- 101
10
votes
2
answers
14k
views
SpatialPolygonDataFrame plotting using ggplot
I have a shape file for the greater London area. I use the readShapePoly function from the maptools package to load it in R as a SpatialPolygonDataFrame .
I want to the plot those polygons .. Which I ...
10
votes
1
answer
18k
views
How to set line width and color when plotting a shapefile with plot()
I have a simple shapefile I want to plot with the general plot() (I noticed that ggplot is extremely slow in plotting maps).
I can correctly plot the shape with the code
library(maptools)
...
- 6,625
10
votes
4
answers
8k
views
Exporting a Geopandas dataframe to a zipped shapefile directly
I'm trying to save Geopandas data frame into a shapefile that is written to a zipped folder directly.
As any shapefile user knows, a shapefile is not a single file but rather a collection of files ...
- 436
10
votes
1
answer
10k
views
gdal/ogr: How to really crop a shapefile?
Given a SHP file corresponding to European countries, and...
Given defined area corresponting to France such :
West : 005° 48' W
East : 010° E
North : 051° 30' N
South : 041° N
How to get only the ...
- 17.8k
10
votes
1
answer
6k
views
Problem with a column name contains a colon in PostgreSQL
I downloaded the shape data from OSM.
I have imported data from Shapefile into PostgreSQL without any problem but I got an error when I do the select statement.
Select addr:city From location;
Error:...
- 659
10
votes
2
answers
6k
views
How to extract vertexes of geometries in ESRI shapefiles using ogr library with c++
I have answered the question and also changed the title of the question from How to access vertices in a polygon layer using ogr library with c++ to How to extract vertexes of geometries in ESRI ...
- 2,558
10
votes
2
answers
22k
views
Creating Shapefiles in R
I'm trying to create a shapefile in R that I will later import to either Fusion Table or some other GIS application.
To start,I imported a blank shapefile containing all the census tracts in Canada. ...
- 1,143
10
votes
6
answers
6k
views
How to export contours created in scikit-image find_contours to shapefile or geojson?
I'm trying to export the results of the scikit-image.measure.find_contours() function as a shapefile or geojson after running on a satellite image.
The output is an array like (row, column) with ...
- 431
10
votes
1
answer
9k
views
How to run GDAL (ogr2ogr) in Java to convert Shapefiles to GeoJSON
I'm a beginner at programming and get pretty confused when trying to use external libraries. I have my maps in shapefiles that I convert to GeoJSON using the website Mapshaper.org, and only then can i ...
- 101
10
votes
3
answers
15k
views
Manipulate shapefile attribute table using R
I've posted this question on the GIS stack exchange, but it's not seeing much traffic.
I'm a GIS user who's been using R for stats for a few years, and I'm excited to see a lot of new GIS ...
- 304
9
votes
1
answer
23k
views
Export a polygon from an R plot as a shapefile
I have been trying to export the content of a plot (lines/polygons) as a layer/shapefile that I can open in ArcMap. These are some of the libraries that I have been using,
library(shapefiles)
library(...
- 1,623
9
votes
1
answer
15k
views
Shapefile to raster conversion in R?
I have a shapefile downloaded from the worldwildlife.org for the terrestrial ecoregions of the world. The file can be loaded here: http://worldwildlife.org/publications/terrestrial-ecoregions-of-the-...
- 923
9
votes
1
answer
22k
views
Add legend to geopandas
I have a map of Chile (http://labgeo.ufro.cl/fichas/chile_geo/ficha_cl_geo.html first link that says "Chile continental) and would like to plot it and add some points of centers for which I have ...
- 113
9
votes
1
answer
12k
views
Reading shapefile coordinates in c#
I want to draw a polyline on "XAML Map Control" with latitude/longitude, using the content of a shapefile.
I have 2 types of shapefile:
One with .dbf, .prj, qpj, .shx and obviously .shp file.
One ...
- 315
9
votes
2
answers
2k
views
Read only data slot from shapefile (R)?
I have some very large shapefiles. I can read them into SpatialPolygonsDataFrame's using the rgdal function readOGR, but it takes a very long time for each file. I am actually only interested in the ...
- 1,023
8
votes
2
answers
17k
views
Projecting my shapefile data on leaflet map using R
I (on Win7) was trying to get my shapefile data (Here are the data files.) to be displayed using leaflet package. But without any success. I only get the background map tile but not my data. I am able ...
- 5,160
8
votes
4
answers
25k
views
shapefile and matplotlib: plot polygon collection of shapefile coordinates
I'm trying to plot filled polygons of countries on the world map with matplotlib in python.
I've got a shapefile with country boundary coordinates of every country. Now, I want to convert these ...
- 439
8
votes
1
answer
4k
views
Unzipping and reading shape file in R without rgdal installed
I would like to unzip and read in a shape file from the web in R without relying on rgdal. I found the read.shp function of the fastshp package that can apparently accomplish this without rgdal ...
- 5,091
8
votes
1
answer
9k
views
cant connect to postgres with GDAL ogr2ogr remotely
I am trying to insert a shapefile into PostgreSQL via Gdal ogr2ogr, the command looks like this:
ogr2ogr -f 'PostgreSQL' PG:dbname='dbname',user='user',host='172.17.2.176',password='password',port='...
- 10.2k