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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36 views

Adding a column to polygon table with correct corresponding address

I have 2 shapefiles: one with polygons (buildings) and their properties other one is a point address shapefile - it contains points that are inside polygons from the other SHP, but it's still ...
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1answer
17 views

Illustrating the average utilization of trails by hikers

I have a question about illustrating the average utilization of trails by hikers. I have made a survey where I asked the participants which trail they used for hiking.There are a lot of trailoptions ...
2
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1answer
57 views

How can I intentionally corrupt the geometry of a shapefile?

I am in need of a few shapefiles with bad geometry for testing some Python code. How can I intentionally create bad geometry in a shapefile? Preferably I would be able to create three (point, line, ...
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2answers
50 views

How do I add my own data to an existing shape file?

I want to add event data to a geographical map. I have district shape files for Zimbabwe that I downloaded from GIS. However I now want to add my own data on to it. How do I do this? I have added ...
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1answer
32 views

Shapefile with point or polygon

I'm just beginning with SIG and QGIS. I've been given two shapefiles with cities. One shapefile appears like point shapefile in QGIS, the other like polygon shapefile. The problem is that the ...
2
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0answers
47 views

Load shapefiles stored in web page in QGIS?

I prepared a map with QGIS and published it via QGIS cloud free. Some layers are quite big, and the cloud size 50MB limit has been reached. If the layer sources could be stored in my web page --- ...
3
votes
1answer
94 views

How to reference all the shapefiles within a Windows folder and merge them in ModelBuilder?

I have a group of shapefiles that are stored in a Windows folder. There are multiple users that will be adding shapefiles to this folder or editing existing shapefiles in this folder on a continual ...
2
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1answer
88 views

Creating shapefile from polygon points for CartoDB?

I have an Excel file that contains polygon coordinates for different areas. The spreadsheet has three columns: latitude, longitude and area name. Each coordinate makes of a part of the boundary of a ...
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1answer
30 views

Averaging multiple values to a single value by common field ID

I want to see how accurate/representative a centroid's datapoint value is compared to averaged multiple datapoints values for the same polygon. There are MANY polygons in the same shapefile. I have a ...
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0answers
34 views

Expanding shapefile shapes

Given a coastline definition (e.g. NOAA GSHHG or OSM Coatlines), I would like to "expand" or "grow" the shape defined by a set amount, e.g. 100m. For example, given a island like this (with 8 ...
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1answer
17 views

Shapefile of South Tyneside borough (north-east England) boundary

I'm looking for a free-to-download shapefile (polygons) of South Tyneside borough. South Tyneside is a metropolitan borough in NE England. Can anyone help?
3
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2answers
77 views

Retaining timestamp when saving gpx as shp in QGIS?

I'm somewhat new to QGIS. I used my Garmin GPS unit to record my tracks while collecting plant specimens for a plant inventory. When I collected each plant I noted the time of collection. I want to ...
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0answers
13 views

Performance of PostGIS view vs shapefile for WMS in GeoServer? [duplicate]

What does GeoServer render as WMS faster, a layer using a postgis view or one getting data from a shapefile? The data I am working with is a table with 55k rows and with 30 columns, with multipolygon ...
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1answer
36 views

Storing PostGIS view for GeoServer? [closed]

I want to know, where this view is actually stored in the server, and how does it interact with the database. I saw that the size of the database is increasing when GeoServer try to serve/create some ...
2
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0answers
39 views

How to clip a .osm.pbf file to a shapefile in R

I have (1) an OpenStreetMap file of a large area in .osm.pbf format that I would like to clip with (2) a shape file .shp of a smaller area using R. The output output I would like to get is a ...
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1answer
100 views

run command line shp2pgsql in c# function?

i'm developing an application web with asp.net/c# and i would in a button importing the shapefiles into postgis, and i'm trying with this code, this code i'm using it in cmd.exe in windows it imported ...
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1answer
49 views

Downloading GIS Map for Pakistan into QGIS

I'm looking to add canals and bunds to my raster and have found some GIS maps at: Canals Bunds Bunds Image Network Plan Map Image - looks to contain both canals and bunds I'm not clear on how to ...
3
votes
1answer
62 views

Convert Japan Administrative Boundary Data to Shapefile

I've downloaded Administrative Boundary data from the Japan MLIT (Ministry of Land, Infrastructure and Transport), but it is in an XML based format referred to as JPGIS or KSJ. Are there any scripts, ...
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0answers
29 views

Feature Layer parameter showing only Polygon Shapefiles

I have created a Python Tool in ArcGIS where most of the paramaters musts be ONLY Polygon Shapefiles. You can also look on my previous question: Filter the Feature Layer parameter in Python Script ...
2
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0answers
59 views

How to convert the BLOB value for the features geometry of type st_geometry kept in ArcGIS databse on Oracle [closed]

I am using ArcGIS Oracle database and I am trying to access feature geometry points as string. But the problem is that the points are kept as blobs and I cant convert to meaningful string. select ...
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1answer
55 views

In MapBox Studio, how to create a centred label of a polygon created from Shape file?

To get the undesired result below, I: Uploaded a zipped Shape file to MapBox Studio. Using the shape, created a layer of polygons to display area boundaries. Using the same shape, created a text ...
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0answers
23 views

QGIS OBIA join attributes by location xml file

I was trying to follow this tutorial for object base classification However, when I reach this step, it becomes confusing. I run the join attributes by location just as it said, and the output are ...
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1answer
56 views

ArcGIS for Desktop exporting empty shapefile

I have a feature class in ArcGIS for Desktop 10.3. This feature class contains 12 point features. I am attempting to export this as a shapefile; Rightclick feature class -> Data -> Export Data ...
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1answer
56 views

How to get, then export as .csv the lat lon centroids from shapefile layer

I have a shape file with a whole lot of regions on it. I need to find the centroids for each of these regions in the shapefile (as latlons) and export this as a .csv I have done extensive research, ...
2
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1answer
41 views

Correlation of yield data within a buffer zone

Working with QGIS 2.12.1-Lyon, I am trying to compare one point (single shape file) with multiple others that fall within a buffer zone of 10m i.e. comparing one shape file with another. The end ...
1
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1answer
28 views

Splitting shapefile into separate shapefiles based on feature class using Arcmap 10.3?

I'm trying to split up this nested watersheds by name. I want each watershed to be it's own shapefile. Is there a faster way to do this besides highlighting each watershed and then exporting it? ...
2
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2answers
35 views

Assigning column names dynamically

I have an interesting problem: I need to batchprocess a few files. I do that in a for-loop, where some operations are performed. Later on I want to write the outcome into an existing shapefile which ...
3
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1answer
81 views

How do I change the shape file (.shp) format to Object File Format (.off) file

I got a map and its format is .shp. What tool can be used to change it to one of the following file formats .off, .ply, .wrl, .obj, .m, .gim. ?
2
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1answer
54 views

Aggregating up spatial information

At present I have a dataset which is broken down by Electoral Divisions (circa 3,500). However, due to issues with some of my variables I need to choose a larger spatial unit - Local Electoral Area ...
3
votes
1answer
82 views

How to do operation after using over() for a shapefile in R?

I am copying the answer of Counts the number of points in a polygon in R library("raster") x <- getData('GADM', country='ITA', level=1) class(x) # [1] "SpatialPolygonsDataFrame" # attr(,"package") ...
3
votes
1answer
77 views

Export Shapefile for a custom region

Is there any way to export a region on google maps to a shape file or any other format? For example, I have the following region on google maps. I wish to export it to shapefile.
7
votes
1answer
209 views

Convert longitude/latitude to pixels on the map

I have a map from here. I want to be able to simply convert arbitrary lon/lat pair to pixels on the map (also the ability to do reverse conversion). The maps come with .tfw file and projection info, ...
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0answers
15 views

How can I draw points on my mobile and then pass it to my computer? [closed]

we are doing a survey to know how many people still use outside bathrooms in the Caribbean, I want to go house by house using a shapefile image on mobile and point the location of points of interest ...
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2answers
51 views

How to select polygons by duplicated attribute value from a shape file?

I have a shape file that contains many polygons(>200,000). Some of these polygons are assigned the same ID number. None of the polygons overlap other polygons. I need to find a way to select out all ...
1
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1answer
33 views

Truncate a Shapefile field with SQL and ogr2ogr

I want to create a new attribute which is the first 8 characters of another, using ogr2ogr. To my surprise, this didn't work: ogr2ogr -f "ESRI Shapefile" a.shp b.shp -sql "select FID,left(FLOORKEY,8) ...
2
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0answers
60 views

Change default “save as” folder QGIS

I would like to change the default path for saving layers ("save as" in the main layers panel). Now the default is C:\Program Files\QGIS Lyon\bin (in which I even don't have the rights to save ...
1
vote
1answer
108 views

ArcMap doesn't recognize geodatabase files under “Add Data”

I have a folder filled with geodatabase files of the following formats: ATX, FREELIST, GDBINDEXES, GDBTABLE, GDBTABLX and SPX. I would like to convert these to shapefiles using ArcMap. I've been ...
4
votes
2answers
126 views

Problem Merging multiple shapefiles with different CRS in QGIS

I am trying to merge multiple shapefiles into one, but I encounter one error, not all of my shapefiles end up merged. I am able to load all of my shapefiles but when I attempt to merge them, the ...
4
votes
1answer
70 views

Making multiple layers editable in QGIS?

I am using QGIS and I want to eliminate fields from 300 shapefiles. All layers are loaded and selected. Is there a way to enable all 300 for simultaneous editing?
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0answers
26 views

changing shape file polygon values on the command line or in a library

I am using gdal_polygonize to create shapefiles. As gdal_polygonize only seems to work for integer values, I gave the different value ranges in my original raster data individual IDs. Now in the ...
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0answers
46 views

Uploading item/file as hosted layer to ArcGIS Online using ArcREST?

I am using ArcREST python package, specifically the add_item.py example to upload a shapefile to ArcGIS Online (AGOL). The example is straightforward and I have successfully uploaded a shapefile to ...
1
vote
2answers
46 views

Using PostGIS to query shape files

I am very new to PostGIS (started using it this morning). My goal is to determine if a lat/long point is contained inside a polygon that is described in a shape file (The shape file has a single ...
3
votes
0answers
151 views

After upgrading to Qgis 2.14 Essen, cannot load layers from .zip [closed]

I had a project in 2.12 Lyon that used many .zip files for access to .shp files. Now, after upgrading, I cannot add any content from .zip. This is Win10 Machine and I have the option checked to scan ...
1
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1answer
44 views

Separate buffer for road lines

I want to a buffer around road (dwg file) in Arcgis. I am merging road lines but there are separate buffers for every line of road.
1
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1answer
91 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
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1answer
31 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 ...
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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
votes
1answer
136 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 ...