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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1answer
93 views

CRS transform from EPSG 4326 (WGS 84) ? to EPSG 27700 (OSGB 1936 / British National Grid)

I have a table which is an import of a shp file from www.geofabrik.de/ England > Roads. I've tried to change the CRS to EPSG 27700 but when I add this back to QGIS along side other layers which are ...
2
votes
2answers
58 views

PostGIS bbox with two tables

I am new to using PostgreSQL/PostGIS. I have two tables that I've imported from two shapefiles. One table is based on points called "shape_points" and the other based on polygons called ...
2
votes
1answer
32 views

My point shape file having missing spatial reference information

I am using ArcGIS 10.2.2. I got a shape file with points representing spot elevations in my study area. This file has been provided by a third party institution. The coordinate system is missing ...
1
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0answers
42 views

How can I Use Python in ArcGIS to Manipulate the Underlying Data of Selected Polygons [closed]

I am relatively new to python in ArcGIS. I have a shapefile loaded in ArcGis (v 10.0) and will select two adjacent polygons using the selection tool. Once I select my two polygons, I want to use ...
3
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0answers
33 views

Transfering files from QGIS to ArcGIS, wrong topology and fantoms objects [duplicate]

I am working in a project with both QGis and ArcGIS. I do mostly cosmetic work and digitalize with QGIS then transfer the shapefiles on ArcGIS. At work I am the only one to work on QGIS, the other ...
4
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1answer
137 views

Interpolate temperature data (shapefile) using R

The answer below solved my fist question, so I edit my question as follows: I have a shapefile given with the attributes lat, lon, elevation and temperature. So far I have a script that interpolates ...
2
votes
1answer
68 views

Filter the Feature Layer parameter in Python Script Tool

I have a Python script tool where I have a parameter of type Feature Layer because I want to have the already opened layers as a dropdown list. I was wondering if there is a way to filter this ...
0
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0answers
22 views

how to select the same variable in several shapefiles?

I need to prepare a map showing the element concentrations by months. I have a shapefile with all the information (13 elements (columns), 16 stations by 10 months (160 rows)), and I have copied this ...
0
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0answers
16 views

Add field, if not alredy exist. Else do nothing [duplicate]

I want to develop a python code that: Enters a shapefile. Determines all its fields and, if among these fields there are some missing from a certain list, it add them. An example may be easier to ...
0
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1answer
58 views

JSONs made from shapefiles are not plotting (using folium or Leaflet alone)

My goal is to plot two shapefiles as layers on an interactive map. The files I'm using live at https://github.com/AnnaMag/maps. I transformed shapefiles to .geojson using ogr2ogr -f ... e.g. ...
2
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1answer
44 views

Upload Shape File size limit

I'm trying to upload shape file to Geoserver with REST api. It is working with most of the shape files, but I have problems when I try to upload a bigger shape file. The .zip file is 21.1 Mb. Contains ...
2
votes
1answer
44 views

Converting an ENVI raster as point shapefile for editing in ArcGIS?

I have an ENVI raster with multiple classes inside. I tried to export this to a vector so that I can convert it to a shapefile in ArcGis (I want to manually edit/delete points in the raster), but the ...
4
votes
1answer
35 views

Remove certain polygon from SpatialPolygonDataFrame

I am using R maptools library to parse the shapefile into a list of polygons. The function readShapeSpatial shp <- readShapeSpatial("<path to my shapefile>") gives me a ...
7
votes
1answer
147 views

Shapefile Polygon does not display in QGIS

I am attempting to import a Shapefile into QGIS. When I import it, the boundary is shown on the list, but when I try to view it in the mapping area, it does not show up. I can get it to show the ...
2
votes
3answers
64 views

How do I create random points only within a multi-part polygon and none outside?

I am currently using a shapefile consisting of an area smaller than the entire study boundary ie. I want this to to be my overall study area. I used a raster to polygon tool and converted it to a ...
3
votes
3answers
132 views

Where to find a polygon shapefile of countries, states and islands?

As often happens, the hardest part of GIS is to come up with clean shapefile with an attribute table. I need to create a choropleth map, but all I have is this: Domicile,Captives New Zealand,24 ...
0
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1answer
70 views

Adding shapes and/or icons to legend using Leaflet within R?

Is it possible, using Leaflet within R, to make a legend in such way that includes a set of icons or shapes and their corresponding value?
1
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1answer
100 views

How to speed up Select by location?

Has anyone had a similar "extreme slow" experience using "Select by location" (Toolbox) and "Spatial query" tool? I've used both for selecting some points inside a polygon. The data was in SHPs and ...
0
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0answers
4 views

Shifted shapefiles with same coordinate system in ArcGIS [duplicate]

I have a strange situation with one of my GIS projects. I received from a client three shapefiles in the same coordinate system (Stereographic 1970 - a projected system). All three files should align ...
0
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2answers
54 views

QGIS capabilities [closed]

Our office is considering to make an offer of a large scale master plan project. The end-user files are required to be shape files, or at least ArcGIS compatible files. (The base map for desing is ...
1
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0answers
31 views

Ogr2ogr: Shape to MySQL. Delete (or ignore) “geometry_columns” and “spatial_ref_sys”

Im exporting a shapefile to my MySQL database. But as standard it also add the additional metadata tables: "geometry_columns" and "spatial_ref_sys" Is there a way to either delete these tables or ...
5
votes
2answers
75 views

Is it possible to 'scrape' shapefile layer from a map saved as pdf/jpeg?

Data on the changes in voting district delimitations in SA is available as a series of maps (no shapefiles made official). I'd like to create a shapefile by scraping the boundaries from the individual ...
1
vote
2answers
83 views

How to find the intersection of three polygon layers in ArcGIS?

I have three data sets of San Francisco, TerraSAR-X, ALOS-PALSAR, Radarsat2. I have extracted KML files using Envi Sarscape. In order to find the intersection of these areas, I have converted ...
2
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0answers
55 views

Selecting polygons that are completely surrounded by other polygons [closed]

Is it possible in ArcMap 10.4 to select single polygons of a particular attribute that are completely surrounded by polygons of a different attribute? Using a segmentation shapefile from a rule-based ...
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0answers
41 views

Converting Shapefile to Autocad

I am Trying to export from shapefile to autocad. But it is not converted correctly. My labels are not shown.
3
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1answer
59 views

ogr2ogr batch load shapefiles into geodatabase

I'm trying to load a directory of shapefiles into a geodatabase with ogr2ogr. It works fine if I specify a single shapefile, but can't open the datasources if I specify a wildcard. Is there a wildcard ...
1
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3answers
68 views

Latitude and longitude from .shp file with QGIS

I opened with QGIS the shapefile in the following archive http://data.openstreetmapdata.com/coastlines-split-4326.zip and I want to convert this shapefile to a list of latitude and longitude values ...
0
votes
1answer
131 views

RuntimeError: cannot open <shapefile> from ArcPy search cursor? [closed]

import arcpy from arcpy import env env.workspace= "C:/Esripress/Python/Data/Excercise08" fc = "rivers.shp" cursor = arcpy.da.SearchCursor(fc, ["SHAPE@LENGTH"]) length =0 for row in cursor: length ...
1
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0answers
31 views

rasterize (R package raster) fail to rasterize island polygons?

I am having problem in rasterezing a polygon shapefile: "island" polygons (I mean polygons which are totally included into a larger one) are ignored and do not appear in the raster. My code is: seg ...
2
votes
1answer
32 views

Joining data from 2 shapefiles Qgis

I think there must be a atraight forward answer to this but I haven't managed yet: I have two shapefiles for the same watershed they are both divided into different areas with different erosion ...
3
votes
1answer
42 views

Is it possible to remove small polygons from Census Block shapefile?

I just pulled up a shapefile that plots census blocks (TIGER product) using Quantum and I noticed that there are well over 1000 small polygons that aren't census blocks that are (I assume) used to ...
2
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0answers
32 views

Building shapefile for Naples region, Italy

I have been searching high and low for a building data layer for the Naples region of Italy (Campania). I am studying volcanic risk from a volcano called Campi Flegrei and have to see how this volcano ...
1
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1answer
63 views

Shapefile buffer assigning to each buffer a different length

I am new to ArcGIS and Python. I have drawn a set of lines (corresponding to a network) in a shapefile. I would like to buffer them, but each line has a different buffer length, so I thought to do it ...
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votes
2answers
82 views

Layers with same coordinate system still do not overlap, as they should, even after ArcToolbox Define and Project tools [duplicate]

For ArcMap 10.3: I had two shapefiles, that at one point, were in different coordinate systems. Shp#1 was in NAD_1983_Texas_Centric_Mapping_System_Albers and Shp#2 was in ...
0
votes
1answer
42 views

Converting geodatabase public lands to a shapefile

Can a whole geodatabase be converted to a single shapefile? This is my code, not sure what I am doing wrong... # Import system modules import arcpy # Set environment settings arcpy.env.workspace = ...
3
votes
1answer
58 views

Way to Shrink Alaska and Hawaii for “Stereotypical View”

Is there anyway to shrink Alaska and Hawaii to create a map that looks like the stereotypical map with AK in the corner, etc.? I thought about trying to isolate AK and HI in their own layers and then ...
1
vote
0answers
45 views

Extract Labels (city names, state names) with shapefiles using QGIS

I want to extract shapefiles with labels on it using QGIS but labels cannot be extracted along with shapefiles. Here's the image: I want this as my output after extraction: How to do something ...
2
votes
1answer
50 views

Change shapefile field names using ogr AlterFieldDefn

I need to change field names of a shapefile to upper case using ogr. I want to do this automatically, versus calling out each field and replacing the name with upper case. When I try to implement ...
2
votes
0answers
100 views

Global shipping network datasets for download?

Does anyone know if global shipping routes for free download (preferably ESRI shapefile) exist? I would need them for my research only as a background presentation on the world image. They can be ...
1
vote
1answer
35 views

QGIS crashes (dumped crash) while importing SHP layers or SpatialLite

I meet problems with the last version of QGIS (Lyon 2.12.3) 64bits on Windows 7. The software crashes as soon as I load a SHP layer or use SpatiaLite layers (created from OSM data). Besides, each ...
2
votes
1answer
55 views

Problem with shapefile created using Arcgis 10.3

I have create a shapefile using Arcgis 10.3 . the shapefile contains attribute data in Arabic language . the problem came when I open it in Mapwell (an app specializes in creating navigable maps) ...
3
votes
3answers
224 views

Can a feature class be stored as a shapefile?

This is a general question about how a feature class is stored or can be stored using python/arcpy. Can a list of created points (a feature class) be saved as a shapefile or in a shapefile, or to ...
3
votes
1answer
39 views

How to use custom shapefiles in OpenTripPlanner?

I have some .shp files and I wanted to try to use them in Open Trip Planner. I run the command: java -Xmx2G -jar otp-0.20.0-SNAPSHOT-shaded.jar --build /path/to/my/shapefile/ --inMemory but I get ...
2
votes
1answer
53 views

How to Combine features in an attribute table based on an attribute

I have a shapefile containing country boundaries for a number of countries in Asia. Many of these countries have hundreds of islands, so that overall there are other 2000 separate features in the ...
3
votes
2answers
50 views

Qgis feature count increases at save layer edits

QGIS (2.12.3, running on Windows) increases the feature count of a vector layer when I "save layer edits". If I do the following steps: create a Vector layer (shp file) enable "show feature count" ...
2
votes
1answer
73 views

Strange names of swedish cities [duplicate]

I got a GIS Data-set for swedish cities. The problem is that they have strange names such as: Trädet Jäla Mjönäs Älmhult Did someone have the samoe problems? I think "ö" for instance mean ...
2
votes
0answers
39 views

How to remove projection in terminal from .shp file with valid .prj available

I have .prj, .shp, .sbn, .sbx, .shx, .dbf files where the content of the .prj file is the following: ...
1
vote
1answer
64 views

Geotools create shapefile in memory

Is it possible to convert between shapefile and geojson using geotools without access to file system? I have that restriction in my web app, but I need to create shapefile as byte array and then do ...
0
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0answers
38 views

Transcad Network file in Arcmap

Is there away to open a transcad network file (filename.net) in ArcMap without having access to Transcad? I just need to see the network links id and attributes.
0
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0answers
29 views

Trouble with Calculate Geometry in ArcMap 10.2? [duplicate]

I got a "Federal Lands" shapefile from nationalmap.gov. I clipped it down to the geography I am focusing on (a few counties in eastern California). I am trying to use the "calculate geometry" tool to ...