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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3
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1answer
566 views

QGIS Shapefiles have the same CRS but dont line up. (Census Tiger Data & State Data)

I have the Census Tiger data for Oregon from http://www.census.gov/geo/maps-data/data/tiger-data.html Then the bottom one of 2010 Census Population & Housing Unit Counts — Blocks. The shp ...
4
votes
3answers
4k views

Using the python shape library: pyshp - how to convert polygons in .csv file to .shp

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
0answers
90 views

Contours generated from merged TIFs huge - much bigger than individually

I'm generating contours from four 5x5 degree SRTM DEMs in southeastern Australia. I'm using gdalwarp to reproject the DEM, then gdal_contour to generate contours. First, I generated contours for each ...
0
votes
1answer
1k views

How can i add sharpmap to visual studio2008?

i have just installed visual studio 2008. and i want to add sharpmap or any other tool so that i can add shape file in .net. I have selected sharpmap because by the search i have got that sharpmap is ...
9
votes
4answers
2k views

GeoJSON too bulky - what to do?

I am using leaflet.js to allow web users to select a region. Valid regions are US states, Canadian providences, and world countries (except for US and Canada). I constructed a shapefile myself using ...
3
votes
1answer
1k views

How to explode multipart polygons within shapefile in QGIS 1.8

I've got a shapefile with polygons, some of which are multipart polygons. I need to create individual polygons out of the multipart polygons. Is there a tool or plugin that can do this in QGIS 1.8?
1
vote
3answers
914 views

Where can I find shapefiles for New Zealand Cities and Suburbs/Neighbourhoods?

I'm trying to find some shapefiles (administrative boundaries) of New Zealand CITIES and SUBURBS/NEIGHBOURHOODS. I've found some boundaries for the Country, Regions, Districts (not useful for me) .. ...
5
votes
3answers
2k views

2010 Census Tiger County shp file with defined coastal land area

I am looking for a 2010 Census Tiger Shape file that hugs the coastline and doesn't include the ocean in county boundaries. I have a pre 2010 file that did this and I can't seem to find a 2010 ...
1
vote
0answers
201 views

How to perform Shapefile to Raster with ArcMap 10.1 while preserving resolution and values?

I am new to ArcMap and I would really appreciate some help. I want to create a new raster using a value in a column of a point shapefile. I have a point shapefile with points equally spaced and each ...
2
votes
1answer
451 views

How to convert a shapefile into a WMS? Wie kann man eine Shape-Datei in ein WMS umwandeln?

can anyone tell me by chance, how to transform a shape file into a WMS and then load it into mapbender? kann mir zufällig jemand sagen, wie man eine Shape-Datei in ein WMS bekommt, um diesen dann ins ...
4
votes
1answer
461 views

Is there a way to handle file names with spaces in ogr2ogr?

I'm trying to convert .shp files to .kml files. I used a batch file to find all .shp files in a directory and its sub-directories and convert them to .kml. Some converted and some gave me the error ...
0
votes
1answer
101 views

Census Shapefiles Fit to Land

I'm looking for an oceans or coastlines shapefile that's a more detailed than what Natural Earth has to offer (1:10m). I'm working with 2000 Census county shapefiles, but it doesn't cut out lakes or ...
2
votes
1answer
967 views

How to upload TIGER shapefiles into MongoDB?

I have the school district shapefiles from TIGER for Michigan, from: ftp://ftp2.census.gov/geo/tiger/TIGER2012/UNSD/ I'd like to use MongoDBs geoquery features to interrogate this data. How do I ...
5
votes
1answer
254 views

How to get maximum value where two shapefiles overlap using ArcGIS for Desktop 10.1?

I'm trying to merge 2 datasets (both shapefiles, but I can convert them to raster layers if necessary) where the values are compared, and whichever is higher becomes the new value for the layer. How ...
0
votes
0answers
254 views

Conversion from .shp to.swf?

Does anyone know which free software can I use to convert a .shp file to a .swf?! I have created a shapefile on QGIS which I would project on STAT PLANET PLUS. In addition, I would like to display ...
1
vote
1answer
336 views

QGIS Crashes when I try and overwrite a shapefile using QgsVectorFileWriter.writeAsVectorFormat (QGIS 1.8, MacOS 10.7.5) [closed]

I'm somewhat new to this, and working on a plugin. My plugin will create a points memory layer, which is then written out as a shape file using QgsVectorFileWriter.writeAsVectorFormat. self.writer = ...
0
votes
3answers
303 views

Python: best practise to ceate a large shapefile

What is the best approach to create a create a very large shapefile (close to the max of 2GB) using python? Best approach means: robust and fast. Above all fast.
1
vote
0answers
134 views

Error when converting .shp to .dxf

I have created a polygon shape file in Erdas Imagine 9.2 from a raster image. I want to export it to .dxf or .dgn for further processing. When I export the .shp to .dxf in Global Mapper, large ...
0
votes
1answer
69 views

Calculate length of 2,000 paths - lines in Google Earth?

I have ~2,000 paths/lines drawn in Google Earth and I would like to know their cumulative length. How can I do this easily? I have been able to convert into excel the Lat & Long of each point in ...
7
votes
4answers
25k views

Looking for free Shapefile editors

I want to create and edit Shapefiles for my application, and I'm looking for a free shape (ESRI) file editor - free for creating and editing. Thanks in advance.
0
votes
1answer
284 views

How can i save Shape file as sql script with ogr2ogr?

I have a some Shape files and i want to convert it into sql scripts. I know that ogr2ogr can put data into data base itself. But i want to have a sql script which can be executed and put data to DB. ...
0
votes
1answer
273 views

How to merge polygons into a single item where an attribute is same?

I have a shapefile of a area .It consists of list of fields in which sub locality is also a field.Under the sub locality field all the areas are common say for example: perungudi,perungudi,perungudi. ...
21
votes
5answers
2k views

What are advantages of using spatialite over shapefile?

I found spatialite more useful than shapefiles as it does not have the limitations of shapefile and it is also portable. Many people here use shapefiles to exchange data and even the experts do not ...
0
votes
0answers
300 views

Drawing a map of a country with specific boundaries/zones using postcodes latitude and longitude

I'm quite new in geocoding - it has been fun! My project is to draw Australia with specific boundaries/zones using R program. I was able to successfully upload a shapefile of Australia in R program, ...
3
votes
1answer
72 views

Does Quantum GIS recognize QDGC information?

Good morning! So a bit of background on what I am working on: We are in the process of assisting a wildlife institution in South Africa with trying to take their information and surfacing it in a ...
2
votes
1answer
328 views

Kartograph Open Street Maps

Firstly, congratulations to Gregor Aisch for creating such a wonderful library, thank you! I am having a little trouble rendering an svg from some osm data. I downloaded the Sweden transportation ...
1
vote
2answers
332 views

FWTools ogr2ogr command does not seem to recognise dim parameter

I am trying to convert a 3D shapefile to 2D via FWTools shell. This is the command I am trying ogr2ogr REGC2013_GV_Clipped_lonlat_2d.shp REGC2013_GV_Clipped_lonlat.shp -dim 2 Which returns the ...
0
votes
0answers
199 views

R program and shape files

I have an R program that sketched a country. This is done by reading a shape file that contains the coordinate of a country (latitude and longitude). How do I export the data from shape file into ...
1
vote
4answers
103 views

Add only unique features from another shapefile

I've got a problem that I am sure at least one of you have dealt with. I'm new to a company that makes use of a rather large database of point data. For whatever reason, the woman who was here before ...
1
vote
0answers
48 views

How to load or query data directly to R from a PostGIS database using RPostgreSQL and rgdal [duplicate]

Is it possible to load/query a shapefile to R, which is stored in a postgres/postgis database? I've built up a connection to my postgres database via DBI, RPostgreSQL and I want to make some ...
0
votes
2answers
704 views

A shapefile / boundary coordinates for Bangladesh divisions

Are there any shapefiles on the boundary coordinates for each of the Bangladesh administration divisions? Essentially what I want to achieve is to have the minimum and maximum of the longitudes & ...
2
votes
2answers
195 views

Are US Census tracts GEOID the same across different years?

I want to know if it is appropriate to join tables from different years to the same census tracts TIGER file. Do all census tracts' ID stay the same? How would they change--adding new tracts, ...
4
votes
2answers
324 views

Shapefile postgis database to be queried by GeoDjango

I would like to create a Postgres database (postgreslq-9.1 and postgis-2.0.2) storing several shapefiles but I am uncertain on how to implement it so I'm searching for some advices. I have already ...
4
votes
5answers
1k views

Display ESRI Shapefiles in a map in a browser. (Not in google maps)

I have a series of shapefiles that I need to render as a map on a webpage. I have an ASP.Net server, although I would prefer something that will work on Linux servers. I would like to find an easy to ...
0
votes
2answers
539 views

How to convert shp to PostGIS dump?

Given a file my_file.shp such those from Gadm e.g. US administrative divisions, where the coordinate reference system is latitude/longitude with WGS84 datum. Input could actually be: Shapefile, ...
0
votes
1answer
69 views

Polygons Shrinking and Moving as if CRS Was Suddenly Out of Sync with Project

I long ago set the CRS for a linguistic geography project I'm working on involving Oklahoma data (EPSG:2836 - NAD83(HARN) / Oklahoma North), and I have been closely monitoring that the polygon ...
1
vote
1answer
106 views

How can I convert files from a county government to shapefiles?

I work for a company that creates software for multiple listing services and real estate agents. We're expanding our coverage area into a new market, and I've been given some files for two different ...
1
vote
1answer
85 views

KML to SHP with elevation not equal to Z value

Can I convert a Google Earth KML file to a shapefile with the elevation coordinates not as Z values? I can add a vector layer using a KML file and then save it as a shapefile but apparently the ...
1
vote
1answer
246 views

Unable to create shapefile in QGIS

I am very new to QGIS and although I've been able to download the software and get aerial imagery using the plugins menu, I'm getting nowhere with creating a shapefile that I can use to draw a polygon ...
1
vote
0answers
138 views

How to shift vertices of shapes in shapefile using FOSS python library?

I need to shift each vertice of shape in a shapefile (of any type:point, line, polygon, multiline etc.) with Python. I need to loop in all shapes, get the vertices, get it's coordinates and for each ...
0
votes
1answer
897 views

OS Vectormap GML files into PostGIS

I am having difficulty in efficiently dealing with OS Vectormap data that comes in GML format. In the past I used the Plugin for QGIS (OS GML Tools) to batch convert folders of compressed GML (.GZ) ...
0
votes
0answers
242 views

How does geoserver determine what SRID to pass to PostGIS [OPERATION ON MIXED SRID GEOMETRIES]

We are using Geoserver to render some data onto maps in a web application. The map shapes are read by Geoserver from a postgis database. The shapes are imported into postgis using the ogr2ogr utility. ...
0
votes
0answers
41 views

Creating Periodic table with geoserver

I'm trying to create a periodic table using geoserver and openlayers. I'm trying to do this in geoserver as I want the periodic table to change colors. But I'm new to geoserver and not sure which ...
3
votes
0answers
214 views

Hitting Memory Limits of PostGIS ST_ConcaveHull / Incomplete Shrink Wrap

I am trying to use PostGIS 2.0 on Postgres 8.4 to do some mapping. I am working with the NOAA Shapefiles, specifically their US States & Territories file located here: ...
20
votes
2answers
11k views

How to convert .shp into .gpx using QGIS?

I'm newbie using QGIS. I would like to convert .shp into .gpx. So, using Qgis, I open my shapefile and I tried to "save as" gpx but it gives an OGR error: creation of field ObjectId failed (OGR ...
1
vote
2answers
154 views

Fail to export shapefile created from X,Y table

I have a dbf file with X,Y coordinates. I chose to display X, Y data in ArcGIS and got a temporary shapefile. However, when I try to export the temporary shapefile, I got an empty one. There is ...
0
votes
2answers
513 views

Help writing script using a shapefile - select by attribute

I am trying to take an existing shapefile and narrow down the attributes using the 'select by attribute' The problem I am trying to solve is: Find parcels that have an acreage >= 100. The code I ...
3
votes
0answers
269 views

PyQGIS joining a dbf to a shapefile [duplicate]

I am trying to join a shp and dbf file using the PyQGIS API. The code I'll use is below: from PyQt4.QtCore import * vector1 = QgsVectorLayer("path to dbf file", "test1", "ogr") id1 = vector1.id() ...
0
votes
0answers
91 views

How to add a field to a .zip shapefile?

I am exploring the possibility of using ArcGIS Online (Free Public Account and Explorer) with my new Global Studies students. (So far, the Free Public Account appears to be more user friendly and ...
1
vote
1answer
76 views

point shape file problem

I have a point shapefile which was created from a text file in Excel using the delimited text layer plugin in QGIS. My problem is that I am getting a point shapefile but when i try to insert this in ...