A vector data storage format for storing the location, shape, and attributes of geographic features. Often referred to as 'an ESRI shapefile', as ESRI developed it.

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233 views

WFS with authentication to PostGis (or to shape)

Is there a way to import data from a WFS layer to a Postgis table (or to a shape)? there are blogs explaining how to do it in 3 steps (http://anitagraser.com/2012/09/26/wfs-to-postgis-in-3-steps/) or ...
2
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1answer
242 views

How to write shapefiles more efficiently in GeoScript?

I've created a geoscript (in groovy) to create a shapefile from generated geometries with certain attributes. It's a heatmap consisting roughly 65.000 polygons with an attribute storing the ...
0
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0answers
56 views

Which GIS software allows manually creating shapes from overlapping shapes of other layers?

I have two shapefiles, one showing the borders of the US states, the other one showing river basins. Both layers are filled with solid colors, with the US states differing in hue and the river basins ...
5
votes
1answer
206 views

Generating surfaces of different heights from LIDAR points

I am seeking a way to generate surfaces (polygons in a 3D space) of different heights from LIDAR point clouds, whose spacing is 4 points per square meter. The typical application is like roofs, which ...
1
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1answer
253 views

How can I clip multiple geotiff tiles with a shapefile without greatly increasing their size?

I'm using gdalwarp to clip a number of geotiffs (tiles of a larger map) to a polygon described by a shapefile (which is about the size of the overall map, i.e. much larger than individual tiles) using:...
3
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1answer
962 views

Extract data from netcdf using a shapefile polygon in python

I need to subset data from a NetCDF using a specific shapefile. The data are sea surface temperature and ocean color at 1/4 degree resolution. I have 4 polygons describing the US. Northeast ...
3
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2answers
336 views

ArcGIS Javascript API: Adding a shapefile with more than 1000 points

I am able to add shapefiles with less than 1000 points by using the ArcGIS Portal REST API as shown in this example: https://developers.arcgis.com/javascript/jssamples/portal_addshapefile.html ...
4
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2answers
515 views

Export KML to SHP in Javascript

I need my Javascript browser application to convert/export KML documents into ESRI shapefiles. Is there any JS library that can do it? I tried googling, but no answers so far (at least, not in ...
4
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2answers
2k views

Join a CSV file to shapefile using gdal/ogr?

I have a shapefile with several attributes, for example YEAR, COUNTY, and AREA. I also have a CSV file with more fields that I want in the shapefile, such as POPULATION. Both the shapefile and the CSV ...
3
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1answer
30 views

raster::rasterize set wrong values with enclosed polygons

Similarly to this post rasterize (R package raster) fail to rasterize island polygons? the rasterize function in the raster package is giving me problems with enclosed polygons. In my case, some ...
2
votes
1answer
368 views

pgsql2shp ERROR: incompatible mixed geometry types in table

I have multi-linestring in .shp files and I split the lines with postgis, but that result is only geom column. It does not works with shape file exporter error: incompatible mixed geometry types ...
0
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1answer
23 views

Command line tool for reading .shp, .prj and converting to Google Maps lat lngs

I have a data file exported from an ARCGIS system (parcel data from local government). Its a zip file containing 7 files: f.dbf, f.prj, f.sbn, f.sbx, f.shp, f.shp.xml, f.shx. I have a simple ruby ...
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1answer
24 views

Styling multiple features in shapefile using GeoServer?

I have a shapefile loaded in a GeoServer instance, and I need some guidance on how to best style the output. The file is depicting public/private land ownership in the State of Colorado. The shapefile ...
-1
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1answer
58 views

Calculate area for each polygon in R

I am working with a shapefile that has many polygons. How do I add one more field named "area_sqkm" and calculate area for each polygon in the shapefile?
2
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0answers
15 views

Label edits disappear upon saving?

I am trying to label a map I'm creating in QGIS v 2.8.9. I'm using data defined labeling to both manually place and rotate labels. I've created the required fields (X, Y, and Rotate) all as decimal ...
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0answers
28 views

Saving arcGIS online data to shapefile

I have a map that is shared in a group and edited through the online map viewer & iPad collector apps. I need to save the updated data to a shapefile so the changes made online can transfer to ...
3
votes
3answers
75 views

Centering shapefile in layout view?

This is what my screen looks like now. The yellow outline of the US is a shapefile and so are the blue dots. I am using one of the default basemaps in the background. I want center the map so that ...
1
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1answer
360 views

multiple shapefile export to kml

I 'm new in Python script and i want to export shapefiles in the folder as the kml file with define layer files. for single shapefile it work perfectly refer below script. But I want to export 4 ...
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0answers
25 views

batch convert geojson to shapefile [duplicate]

I have a directory full of geojson files that I need to convert to shapefiles for editing in QGIS. As far as I have searched, there are no resources in GIS StackExchange that explain how to do this ...
3
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1answer
162 views

Selecting multiple attributes, greater and less than

I am trying to select by attributes from a polygon shapefile. I need to select areas with a temperature greater than 10 oC and lower than 15oC using gridcode but I can't seem to work out the correct ...
1
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1answer
23 views

Error on join in ogr2ogr

I am doing an ogr2ogr process where i will be making a join between two tables, imported as shapefiles and .csv to join on a column with idential attributes. The code i've made so far looks like ...
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0answers
63 views

Using file opened by GUI in python?

I have these lines of code: import tkFileDialog, arcpy, arcpy.da, numpy as np, Tkinter import arcpy.mapping as mapping fc = tkFileDialog.askopenfilename(filetypes=[('shapefiles','*.shp')],title='...
3
votes
3answers
2k views

json to shapefile in javascript

I know, there are some libraries to convert .shp to .json even with javascript, but haven't found a way to convert .json back into .shp that could be implemented in web enviroment. Do you know or ...
2
votes
1answer
177 views

Using ArcPy to fetch Information from a .GDB

I am new to GIS and I would appreciate if you could guide me a little. I have a .gdb folder with data and I need to process that data to find educational institutions which are within say X Km of the ...
3
votes
2answers
131 views

Geopandas Polygon to matplotlib patches Polygon conversion

Unfortunately geopandas plotting is extremely slow and takes a lot of resources, hence I would like to use instead matplotlib for plotting. When I use pure Fiona to open and read the shapefile I ...
1
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0answers
60 views

Rendering shapefiles (.shp) to TIF with labels? [closed]

I've basically copied the script below with minor tweaks from a few other posts here on stackexchange. When I run my code and all I get for output is a TIF that's white with a legend. For the life of ...
1
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1answer
41 views

Convert .dwg to .shp via FME

I'm attempting to convert a .dwg to .shp with FME software. So far I have pulled in the .dwg, added the writer to convert to a shapefile with a specified coord system and chose the location of the ...
9
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4answers
8k views

Using ogr2ogr to convert GML to shapefile in Python?

I am trying to convert a GML to an ESRI shapefile using ogr2ogr utility in a python script. I have successfully installed the GDAL/OGR package via osgeo but I am now struggling to find/understand ...
0
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1answer
132 views

Using shapefiles as a reference for accuracy assessment in ecognition

I classified my project and got an esri shapefile with points in it. Those points are hand made samples with the right class assigned to them. Now I need to use those samples to check my own ...
3
votes
1answer
41 views

Why is a single road sometimes split into separate layers?

I'm using data from the Transportation section of the National Map (US). They provide three layers for roads: Trans_RoadSegment, Trans_RoadSegment2, and Trans_RoadSegment3. I seem to recall this ...
4
votes
2answers
101 views

Python: color Canadian provinces in a shapefile based on given values

The 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: values={'Alberta': 1.0, 'British Columbia': 2....
21
votes
3answers
5k views

Is it possible to look at the contents of Shapefile using Python without an ArcMap license?

I wondered if it is possible to look at the contents of a shapefile using Python without having and ArcMap license. The situation is that you can create shapefiles from many different applications, ...
1
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1answer
25 views

Wrong boundary when plotting Canada's shapefile in Python

I want to plot the Canadian shapefile with province boundaries highlighted and hollow filling. I have downloaded the shapefile from here. This is the script I use to visualize the shapefile: ...
2
votes
3answers
241 views

How to use field calculator to change values from a,b,c etc. to 1,2,3 etc.?

I have a vector shp with a column with string values. How can I convert this to a column of integer values in another column but keep the categorization: e.g. from: col1,newcol2 A, A, B, A, C, to: ...
1
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1answer
2k views

Where to Dowload Village layers for India with census 2011 information?

Does anyone know where I could download a layer of all villages in India together with their populations (hopefully from the 2011 census)?
1
vote
1answer
190 views

Plotting an eia shapefile in google maps with R?

I'm trying to plot a eia shapefile onto google maps. I have a code working with the map funciton but can't get it to work with the ggmap function. Where am I going wrong? Working code: library(maps)...
1
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1answer
54 views

Extracting multiple raster data to point shapefile in ArcGIS ModelBuilder?

I used raster iterator tool in ArcGIS ModelBuilder read several raster files in IMG format and extract values of corresponding raster files to a point Shapefile using "Extract multiple values" tool in ...
3
votes
2answers
465 views

Creating shp from txt files using ArcPy?

I have a txt file like this: Point 0 347172.2 4269952.7 60.9090909091 1 337172.8 4278952.4 85.7334909091 2 344572.3 4547952.2 123.909673091 3 347532.8 8777952.8 456.467809091 END The third column ...
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0answers
24 views

Convert a SHP file set to a categorised ASC raster with Qgis?

I have a shapefile with regolith (soil) data that I would like to use as a categorised raster (say 007_1ASC) in Maxent. The regolith data is in the following files: 007_1.cpg 007_1.dbf 007_1.prj ...
2
votes
1answer
25 views

How to extend an OSM or raster area in Qgis (into 'No Data' area)?

I need to do the opposite of clipping down a raster (or SHP file) in Qgis (or Gdal, Python etc - even R if someone can provide the script). I have a dataset from Open StreetMap (*.OSM) which includes ...
1
vote
0answers
42 views

How to export a training shapefile as an XML spectral signature file via QGIS?

I recently used the answer from Orfeo Toolbox object based classification in QGIS tutorial/workflow to perform an object base segmentation on a spot image i acquired a while ago. I tried both of the ...
1
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1answer
39 views

Failed once again to import shape file to postgis DB using ogr2ogr

Once again I try to import a shape file to my remote postgis database using og2ogr. Last time it was an Odyssey but I have managed to solve all the issues and report them one by one here. I have ...
5
votes
2answers
984 views

Data security for GIS Data (shapefiles,AutoCAD files)

This is regarding security for GIS Data (in Esri & open source) (Esri shapefiles, AutoCAD files etc.) Does anyone know how to assign a password to or encrypt shapefiles OR CAD Data? I have found ...
0
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0answers
18 views

Esri Shapefile to KML with gdal resulting in “too_big” in altitude value

I'm needing to automate the conversion of .shp files into something more user-friendly like GeoJSON and KML. The conversion to GeoJSON seems to work okay with this command: ogr2ogr -f GeoJSON -t_srs ...
0
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0answers
29 views

Raster to categories to shapefiles

I have a raster data file which is the population density. I would like to transfer this raster into a specific number of categories, let's say 5. After that I would like to convert the raster to a ...
1
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1answer
134 views

mask raster with shapefile using gdalwarp/gdal

I am struggling to use gdalwarp with cutline option. The following command keeps failing and I do not understand why : gdalwarp -cutline shapefile.shp file.tiff newfile.tiff Warning 1: Self-...
10
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3answers
3k views

Getting list of distinct values from shapefile field using QGIS?

I have a shapefile whose features I can filter by specifying a where clause in the query dialogue. F.x. I have a field named 'city_name' and by stating 'city_name = "London"' in the where clause only ...
1
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1answer
29 views

QGIS: how to label a continent map with distinct values from shape file?

I have a continent shapefile containing the names of its different countries. Unfortunately, many of these countries have more than one entry (i.e. more than one row in the attribute table). ...
0
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1answer
34 views

Files resulting in dBASE table and projection file but not shapefile

Received data from an agency I'm working with. The documentation they included said what they're sending me is a shapefil. When I go into ArcCatalog all that appears is a dbase table and project file. ...
1
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1answer
3k views

importing shp file in matlab

I have digitize 3 rivers on google earth and converted into shp file to use in matlab. I have checked the shp file in Arcgis and they are working. But while opening in Matlab, matlab shows some error. ...