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.

learn more… | top users | synonyms (2)

0
votes
1answer
18 views

Overlaying grids with a polygon to determine the average value of the overlapping grids for that polygon

I would like to add the average, minimum and maximum value of, let’s say soil moisture (variable "value" in my case), to each NUTS3 region (= a NUTS3 region is a polygon of a certain small area in ...
-2
votes
1answer
68 views

What are shapefiles, layer files, and databases and what are their relationships? [duplicate]

What exactly is a shapefile in ArcGIS, and how is it related to a database or a layer file. What are the differences between these 3 things?
1
vote
0answers
23 views

Join tables in QGis 2.01. Dufour

I performed a "join" going to the properties option in a shapefile (in this case is just a table), in order to join the attributes from another shapefile that has a field in common, specifically ...
-1
votes
0answers
23 views

How to generate map using geoserver & openlayers in java from postgis data? [on hold]

I am a newbie in geoserver and want to know how to render map (postgis database) in openlayers using geoserver? I want to add the base layer. I tried: var layer = new OpenLayers.Layer.WMS("OpenLayers ...
1
vote
1answer
168 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
votes
1answer
1k views

Is there a QGIS bezier curve tool?

I'm a recent convert to QGIS but have been confused about the lack of support for drawing curved shapefiles, especially when Arc has almost too many. A lot of the work that our consultancy do is based ...
1
vote
3answers
5k views

How to read coordinates from shapefiles and overlay on Google Maps?

I have shapefiles i.e. *.shp, *.dbf and *.shx files. I need to read geo coordinates from these files and overlay the area on Google Maps at the right location. I believe that *.shp and *.dbf ...
1
vote
3answers
3k views

Why does Clip keep giving Error999999: Error executing Function Invalid Topology [Topoengine Error]?

The layer being used as the Clip Features has been used before and worked fine, so I assume the issue is the layer I am trying to Clip (Input Features) - I keep receiving the same error when running ...
2
votes
0answers
18 views

How to label feature of shape file on the color map in matlab

I am trying to make color map from text file data.I am using geoshow to call shape file of the region and to set it as back ground of the color map.My shape file is of the country. I have digitized ...
1
vote
1answer
46 views

Iterating Table Fields to Create Individual Shapefiles

I am trying to create individual shape files from a single table that contains the following: Weather Station Names Station XY Cordinates 31 individual field columns of daily data for each weather ...
0
votes
3answers
42 views

Add nodes to polyline at set intervals

I have a shapefile polyline which I would like to add nodes to at set intervals along its length. Is this possible in ArcGIS 10.2 and how would I go about it?
2
votes
1answer
498 views

Is it possible to have self intersecting polygons in shapefile?

GIS vector data for example shapefile contains polygonal data. Lets assume, we have polygon A which has self-intersection which means that the edges in this polygon intersect with each other. Lets ...
0
votes
0answers
16 views

Defining Projection of Shapefile Didn't Align With Basemap, EPA Ecoregions [duplicate]

I'm using ArcMap 10.2 on a Windows 10 PC. I tried defining the projection of the ecoregions of Alabama and Georgia shape file (USA Contiguous Albers Equal Area Conic USGS version) to my basemap (GCS ...
2
votes
1answer
182 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 ...
1
vote
3answers
36 views

Looking for Parish Boundaries Datasets for QLD Austraila

Every so often, I am asked for a parish boundary dataset. I can never find them as I am of the belief that they are no longer used. Has any one had any experience with parish boundaries in Australia ...
4
votes
2answers
56 views

From .shp to .kml to .shp Without Losing Attributes

I've converted a shapefile with attributes to a .kml for a client. The .kml and attributes were then edited within google earth. I received the updated .kml and now I need to get it back to .shp. ...
0
votes
1answer
62 views

How do I convert a VMAP to a shapefile using GDAL?

This is my first time trying to convert a VMAP to a shapefile and the examples online aren't as straightforward to me. Any guidance is appreciated.
3
votes
2answers
36 views

Add information from a cvs/text file to a raster shapefile based on latitude and longitude information

I have an empty raster shapefile that only contains the latitude and the longitude of the centroids of each grid. I now want to add an extra variable to each grid cell coming from a cvs or txt file. ...
0
votes
1answer
188 views

40k+ points from Shapefile, clustering them and populating on Google Maps/Webapp

I just started a new Python/Django webapp job related to GIS (and i'm totally new to GIS). Here is my task and what i have found so far, and i am stuck as to finding out what's the best way or the ...
2
votes
3answers
80 views

Too many contours labels are showing up in ArcMap, not just ones for selected subset?

I created a shapefile for contours lines on the basis of a raster. Since I am interested in just 5 contours (out of, say, 50), I selected for display just the contours I am interested in. I achieved ...
0
votes
0answers
41 views

Code converting lat/long coordinates (WKT) to polygon (shapefile) not working

I am having a problem converting WKT to shapefile. I have a csv file consisting of three columns: ID, Name (of the area) and WKT comprising set of lat/long coordinates of area boundaries. For example, ...
1
vote
1answer
64 views

jquery range slider to filter geoserver layer attribute

i would like to apply with jquery range slider a filter to an attribute of a geoserver layer. I prepared the code for the shape topp:state, attribute PERSONS. How is it possible filter the PERSONS ...
1
vote
2answers
43 views

Is there any shapefile (or other format) of Russia's time zones after 2014 changes?

According to for example Wikipedia, Russia changed its time zone boundaries in 2014, moving areas between existing zones and defining new ones for the Crimea area. Is there any shapefile or other ...
2
votes
1answer
79 views

How to plot certain values of a column in R?

Lets say we have a shapefile of cities with a column called category cities@data category A B A C A A B C How can i plot the A category only etc? Tried c<-cities$category[A] ...
1
vote
2answers
31 views

Leaflet's shapefile plugin only compatible with Firefox

I created a html page (currently locally) and used Leaflet to create a basic map to which i plan to add several shapefiles. To do this, i use the leaflet.shapefile extension ...
2
votes
1answer
176 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
votes
1answer
31 views

How to do union that results to a SpatialPolygonDataFrame in R?

I have the following code coastline<-readOGR(dsn=".",layer="shp") wetlands<-readOGR(dsn=".",layer="shp") wetb<-gBuffer(wetlands,width=500,byid=T) ...
-1
votes
0answers
36 views

GIS masters project [closed]

am a master's student interested in doing GIS project in the line of agriculture. Kindly help me brainstorm on the above subject by suggesting some of doable research topic in GIS preferably in ...
0
votes
0answers
41 views

How to cut big shapefile into several smaller shapefiles?

I'm converting my shapefiles to gpx files to use them in garmin gps, but if the shapefile is too big, I lose data in the conversion. I get a gpx with holes in and I cannot work with it in the field. ...
0
votes
0answers
15 views

How to export shapefiles and other attributes to KML using QGIS?

Is it possible to include all the attributes in the table of a shapefile when exporting it from QGIS to KML? I want to view all other data inside my table in Google Earth.
0
votes
1answer
50 views

Distance to coastline?

I have a shapefile of Ireland, and some xy coordinates plotted on top of it. Is it possible to calculate distance to the coastline, for each XY? I am an ArcGis beginner.
2
votes
1answer
21 views

JAVA GIS create shapefile from FeatureLayer

The title kind of saids it all. I am attempting to export a featurelayer to a shapefile and am not having any luck finding a library which includes this functionality or relevant code to see where to ...
1
vote
1answer
70 views

Big performance difference reading shapefiles between QGIS and R

I'm trying to read the belgian landuse ESRI shapefile from geofabrik.de: http://download.geofabrik.de/europe/belgium.html In QGIS it's just a matter of seconds, but in R using the readOGR function ...
1
vote
2answers
165 views

Reducing Size of KML file (After converting from Shapefile)

I have a shape-file of size 224 mega byte. I am using ArcGis to convert it to a KML file. The process involves converting the shapefile to a feature layer and then converting the layer to KML. An ...
0
votes
1answer
55 views

Importing shapefiles with unknown spatial reference into feature dataset?

I was wondering if I import shapefiles with unknown spatial reference into a feature dataset, with desired coordinate system, would that work?
2
votes
1answer
19 views

How can I save a modified shapefile in ArcGIS Pro as new shapefile?

I downloaded a zipped shapefile and modified it in ArcGIS Pro. How can I save changes as a new shapefile? I see only the option to save as Layer File. If it is not possible, how I can edit an ...
3
votes
0answers
33 views

Extract the outer points of a Point Shape into a Line Shape? [duplicate]

I've installed QGIS 2.8.2 since a few days and have no experience with this application. I try to extract the outer points of a Point Shape into a Line Shape, like a shell for the inner points. All ...
3
votes
1answer
25 views

QGIS Convert bathymetry shapefile from fillable to strokeable

In Java I would like to stroke the bathymetry depth lines instead of filling the area. I'm starting with the Natural Earth Bathymetric Data: ...
0
votes
1answer
188 views

Shp2pgsql - exec() not allowed on external server

Me and my collegue are using the shp2pgsql and psql commands in php code (a Drupal module to be precise). We put these commands in a php variable and use the exec() command to execute them. This ...
1
vote
0answers
22 views

Detecting broken hyperlinks using ArcPy? [closed]

I am trying to use ArcGIS 10.2.2 to detect broken hyperlinks from a .shp and export them to a text file. Is this possible to do this with Python scripting? I only want to see the broken hyperlinks ...
0
votes
0answers
45 views

How should i combine these rasters?

I have two buffers that i want to combine. I tried overlay with fun=function(x,y){return(x*y)} but 0*5 = 0 so it produces NA's.I don't know how to combine them the one buffer should be 500 and the ...
1
vote
1answer
27 views

Shape Files and adding Label Data

Introduction: I'm still fairly new to GIS and have only had about 3 weeks experience. I set up an OSM server locally with .osm.pbf data and it worked just fine. When I pulled the map in the browser, ...
-2
votes
1answer
68 views

Where can I find spatial data for UK administrative boundaries?

I am specifically looking for UK local authorities, wards, postcodes in shp file format.
1
vote
1answer
27 views

Merge a table with a shapefile (not the same dimension)

I am trying to merge a table with a shape file using R. The shapefile's database is bigger than the table and I need to have null or zero values where the two data sets don't match. Table data no. ...
4
votes
3answers
4k views

Using PyShp to convert polygons in *.csv to *.shp files?

I'm converting csv data to shapefiles using the pyshp python library. What I want to do is very similar to Using the python shape library: pyshp - how to convert .csv file to .shp, except that I ...
1
vote
1answer
25 views

Multipoint shapefile won't display

I have created a multipoint shapefile file and added lat/long data for a few hundred points (by copying and pasting columns of data from excel). The new shapefile is the same coordinate system as my ...
7
votes
3answers
2k views

How to clip LAS data using shapefile polygons and open source software?

I am trying to clip or filter lidar files (las, xyz) using a shapefile that contains multiple polygons. Is there open source software that can do this spatial operation? My las files are enormous, ...
2
votes
1answer
44 views

Changing the extent of a Shape file in ArcMap for distrubution modelling in R

I am currently trying to create a species distribution model in R using maxent. The shape file I have is a map of an island. When viewed in ArcMap it has a set extent--in Lat and Long. I can ...
2
votes
1answer
160 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 ...
0
votes
0answers
20 views

Find line where the beginning or end of line touches a polygon with minimal radius

I need to check, If a point from a beginning or an end of a line is nearby a polygon. The target is to check, whether the line is nearly connected to a polygon. The data are coming from a shapefile. ...