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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Programmatically adding shapefile to data frame in ArcMap? [duplicate]

I have a toolbox with python script which creates a shapefile from JSON txt file, but it does not show the generated shapefile in arcmap, i have to add it from the output location. What code shall I ...
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1answer
4k views

GIS, R and shapefiles

I have some data that encodes locations in certain countries, such as the US and China, that I would like to map. The data includes location name in Latin, extended Latin and other scripts (Japanese, ...
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2answers
2k views

Reduce the resolution of a shapefile in R (or QGIS if necessary)

I'm using shapefiles of history U.S. state boundaries from NHGIS to make maps in R. These shapefiles are much higher resolution than I need when making maps at the scale of the country: over 2 million ...
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1answer
747 views

Splitting a shapefile into many shapefiles with open source

I want to create a shapefile for each of the 72,000 census tracts in the United States that includes the census blocks in that tract using open source software. I will probably start with a state ...
6
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1answer
1k views

Create multiple shapefiles from one table

I've imported a table into ArcGIS which I'd like to split into multiple shapefiles. The splits would occur between groups of records separated by any of 3 columns. In other words, col1, col2, and col3 ...
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8answers
12k views

Why can't I export XY data to a shapefile?

I have added a table from Access to ArcMap, and then used 'Display XY data' to plot points. When I then try to export the Events to a shapefile I get an error message telling me: "Error exporting ...
6
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2answers
159 views

Complex Shapefile Compression Advice

I'm looking for some advice on how I can simplify this very detailed shapefile to ultimately be used for the web (as topojson) as a interactive heatmap. It was originally created from a raster file (...
6
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2answers
381 views

FME - Writing Large Shapefiles

I've got an FME Workbench (version 2015.0) which searches for shapefiles in a folder tree. The shapefiles are contours which are split into tiles for a particular area. The workbench is fairly ...
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2answers
426 views

How can I turn a vector layer into a graph G = (V, E)?

I have a number of rail networks, in the form of shapefiles of the "line" type. I want to turn them into a more abstract graph format, i.e. the kind with vertices and edges, not chart-type graphs. ...
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2answers
6k views

Converting KMZ/KML to SHP (3D objects)

I have 3D buildings in .kmz file. I can see them in Google Earth, but I cannot import them to ArcGIS. What I've tried until now: I saved it as a .kml file in GoogleEarth and then try to convert the ....
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3answers
396 views

Are there any open source Python modules compatible with arcpy that will allow complex SQL queries?

I am trying to handle string (non-geometry) duplicates in a large attribute table of a shapefile without having to convert to gdb and back or connect to a postgres db. I need to be able to use a count ...
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4answers
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Postal areas for Germany? - Shape?

does anyone of you know how and where I can download postal area districts of Germany in shape files (download free of charge if possible). best regards desputin
6
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1answer
252 views

What is the best way to store Flickr's Shapefiles Public Dataset in SQL Server 2008?

I'm wanting to import specific locations from the Flickr Shapefile Dataset into SQL Server would like to know what is the best way to store the data in SQL Server 2008? Link the the 1.0 Dataset: http:...
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2answers
170 views

Where can I find Historical GIS datasets?

I've been looking for a while for Historical GIS datasets. In a lot of places (also in answers here at StackExchange), people are referring to a great dataset at ThinkQuest, which contains shapefiles ...
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1answer
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projection/pyproj puzzle, and understanding SRS format

I have a shapefile that has a .prj file, with the following wkt contents: PROJCS["NAD_1927_StatePlane_New_York_West_FIPS_3103",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["...
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1answer
869 views

How to Convert a Line Shapefile into a CSV with Nodes and Links?

Is there a way to convert a linear shape file into a csv file of the following format: Node_1, Node_2, attribute_1, ...., attribute_x 1 2 "hello" 567845.334 I have looked at ...
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1answer
198 views

How is the “place” determined for this Tiger 2010 shapefile address record?

In most cases, an ADDR.DBF record links to an EDGES.DBF record that links to a FACES.DBF record that links to a PLACE.DBF record that contains the place. Sometimes, the place key in FACES.DBF is ...
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2answers
2k views

Why is the dynamic text on data driven pages not displaying a value from the grid attribute table?

Relating to my question here, I've been trying to return a value from the attribute table using the following code: <dyn type="page" property="lu1p"/> However, even if I try to use a ...
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2answers
560 views

Calculate stop times/distances of transport lines - tools and procedure?

I need to calculate stop times of bus lines (extrapolation) I have: Shape file with all stops shape file with control points where bus time was taken Shape file with all bus routes csv file with ...
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2answers
1k views

Error getting text attributes from shapefile with python / pyshp

I have a shapefile, containing only points in XY-coordinates and a string attribute for each point. I would like to read the coordinates and the attribute for postprocessing in python, but can't get ...
6
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1answer
1k views

Add polygons to existing shapefile in QGIS

I'm completely new to GIS and this is a very basic question about editing existing shapefiles. I am working off an existing shapefile which was digitized (by a colleague) so that polygons represent ...
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3answers
5k views

How to read Greek fonts (ISO-8859-7) in shapefile attributes within QGIS 1.8.0?

I'd like to ask whether there is a way to read greek fonts in a shapefile's attribute table within QGIS 1.8.0.
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1answer
247 views

Is there a difference between projecting shapefiles then rasterizing & rasterizing shapefiles then projecting?

I currently have a project where I rasterize shapefiles into simple presence/absence (1 & 0) rasters and then add each one to a running total to create a total richness raster at the end. The ...
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1answer
2k views

Why does QGIS Simplify Geometries delete entire polygons?

I am reducing the size of a world timezone shapefile, http://efele.net/maps/tz/world/tz_world_mp.zip But at a 0.01 tolerance, entire countries disappear Anybody know a way round this? QGIS shows ...
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1answer
3k views

Spatial distance join between polygon and points using R?

I'm figuring out how to do a Intersection (Spatial Join) between point and polygons from shapefiles. My idea is to get the closest points and those points that match completely inside the polygons. In ...
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Python script using SAGA and arcpy for converting 'on the fly' LAS point cloud to shapefile?

Summary: I have created a process to import a LAS point cloud, clip it, select the ground points and save the output as an XYZ.txt for clients to use. This uses a python based script (will become a ...
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3answers
931 views

Using Google Earth Enterprise & ArcGIS platform together?

I have been fielded a few questions about Google Earth Enterprise (GEE) -which I don't know anything about, I'm having a time finding answers to the two following questions, which can probably be ...
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1answer
86 views

Geometry not displaying correctly in QGIS 2.12

I loaded a few Shapefiles from different sources into a PostgreSQL database, when I visualize them in QQGIS some of them are not shown. This how i added the geometry column in my tables: SELECT ...
6
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1answer
362 views

Find shortest path between points avoiding shapefile?

I am an intermediate python developer with very limited GIS experience. I have a list of latitude/longitudes of a ship at sea. I need to join them into a polyline using the shortest distance between ...
6
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2answers
212 views

Select 90% matching attributes

I have a shapefile (.shp) of 180k roads with information of street name. I need to do a Dissolve on that road network to make only one feature per name. But I have a problem by doing that task ...
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1answer
423 views

Importing a shapefile into Postgres: Can I use Multiple CPU Cores?

I'm importing some shapefiles into Postgres/PostGIS. I'm using Windows 8 and the shapefile importer/exporter GUI. It maxes out one CPU core. I'm wondering if there is a way I can use multiple cores ...
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1answer
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How to Export a Shapefile as KML Using R

All, I have exported an ESRI shapefile (polygon) to KML using R, but the resulting layer shows only the outer extent of the polygon. How can I fill in the area with a color? Any help is greatly ...
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How import a shapefile on-the-fly and have GeoServer render it instantly?

I am tasked with adding one feature to an existing app. It was built with OpenLayers and GeoServer. The task is to import a shapefile on-the-fly and have GeoServer render it instantly. However, I can'...
6
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2answers
10k views

How to change projection and show latitude / longitude in QGIS?

I am new to QGIS and pretty ignorant with the subject, but I want to be able to see the latitude / longitude of a point (with a mouse click) in Quantum GIS. I imported a shapefile (roads of finland ...
6
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1answer
839 views

How to connect places (points) without crossing lines?

I have two sets of data. One with placemarks represented by blue dots in image below, and another set of geographic data with lines represented by grey lines. 1) For the first point in drawing, I'm ...
6
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1answer
3k views

How to use QGIS to fix an invalid geometry without it telling me I'm not allowed?

I have a shapefile, and it's got a self-intersecting geometry in it. I'd like to fix the self-intersection, but it will require a few moves. When I attempt to move a point using the QGIS edit tools, I ...
6
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1answer
111 views

How to make a wedge shapefile in R?

I'm quite okay at R programming, but fairly new in GIS (especially in R). I have a set of coordinates and I'd like to create a custom shape around them. What I want to do step-by-step: Create a ...
6
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1answer
204 views

Making a 3D map with shapefiles, lidar and aerial image data

I want to try to make a simple 3D map for a small area (10 square miles) with some housing, some roads and some vegetation on it. My geodata is as follows: shapes with houses/roads/vegetation. ...
6
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1answer
358 views

Maritime route prediction avoiding land masses

I am working on a project where the following functions have to be implemented: Predicting the locations of the ships (in maritime environment) at a future time. (Can be done with Kalman filter, IMM ...
6
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1answer
381 views

GIS storage format for better performance - Android device

We have developed an android application which loads different eco-zones and does geo-fencing based on current GPS location. We have converted a shapefile to KML, then to JSON format, for loading in ...
6
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2answers
574 views

How to generate discrete areas from multiple, overlapping features?

I have a point dataset that I want to append some information from a polygon to. My polygon shapefile contains over 500 features. Whilst each of these features represents individual areas they are ...
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3answers
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How to convert factfinder2.census.gov map data to KML?

I've downloaded a map from http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_SF1_P1 (limited to San Francisco census tracts), and I'd like to convert it to KML ...
6
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1answer
286 views

Are there any Objective-C frameworks for shapefile drawing?

Hello can someone point me to library for this? Which can read .shp files and render them?
5
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3answers
5k views

How to get shapefile of river from OpenStreetMap?

I dont want to download whole map of an area. I just want rivers and other waterbodies present in an area in shapefiles so that I can use them in Qgis. I tried geofabrik but it is giving whole map and ...
5
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4answers
334 views

We sent Client Esri Files and Now they want to See Polygons

We are a voter list company. Every ten years new political boundaries are written for federal and state offices. All of the corresponding shape files are ESRI ready. One of our clients is getting ...
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Now that NationalAtlas.Gov is retired/removed, where is the largest source of public shapefiles for the USA?

I used nationalatlas.gov for many years, downloading various shapefiles regarding water, roads, boundaries, environmental factors, and more. NationalAtlas.gov was a central public site that many GIS ...
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4answers
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Export to a Shapefile and maintain Domain Coded Values

I maintain a complex parcel fabric that uses coded value domains for a few fields. These are short integer fields with values from 1 - 6. These values represent say 1:Integrated Registered Survey Plan,...
5
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3answers
347 views

GIS file format for space and time data?

I need some advice with GIS file format choice. Here is my problem: I have about 100 stations. At each station water temperature is measured daily for 1 year I want to load this data to QGIS and be ...
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4answers
4k views

Updating 30 Shapefiles, adding attribute and populating based on data

I need to add an attribute to each shapefile attribute table in ArcMap, I was thinking to do it in SQL, but I'm not sure how to go about doing it since I'm very new to ArcMap. Can someone explain to ...
5
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2answers
983 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 ...