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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53 views

How to use gis data

I am extremely new to gis, i just received a shape file, and a zip file that includes the following files: filename.SHX filename.SHP filename.prj filename.dbf filename.cpg but not sure how i would ...
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17 views

error converting shapefile to geoJSON with Ogre online tool

I am using on online tool built with ogr2ogr to convert shapefiles to geoJSON: http://ogre.adc4gis.com/ It's worked well except for one shapefile, and I can't see why... The shapefile has only six ...
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16 views

How can I draw a Line on a Shapefile?

I have a problem, in Java I can draw points on my Shapefile, but I don´t know how to draw a Line. I found the SimpleLineSymbol, but don´t know how to use it further. My first try was LineString ...
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11 views

how to convert shp and gis line and raster data to autocad (dwg or dxf) in QGIS or GRASS

I am trying to find out which is best free GIS program with ability to convert shp and line and raster files to files suitable for autocad (e.g. dwg and dxf). I have QGIS and GRASS. I get an error ...
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3 views

Troubleshooting a few missing shapefiles on Google Fusion Tables

I downloaded a set of election precinct shapefiles from the Clark County Nevada website and converted them using shpescape.com into KML files for Google maps. Now I'm trying to troubleshoot why a few ...
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13 views

Converting pre-ADF coverages to current shapefiles?

I have a set of old coverage files, published at 1995-1996 in a CDROM by an official mapping authority. They were, therefore, made with ArcView 1.x and don't have the ".adf" extension. The files that ...
2
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1answer
22 views

Script to convert a shapefile to an OSM poly file on WIN 7?

Is there a commande line tool running on WIN 7 which is able to create OSM poly files (polygon filter file format) from shapefiles? The tools listed here do not seem to fit my needs. The only ...
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22 views

shape file is not getting added on open layers web mapping application

I am trying to add a shape file which is already on IIS SERVER.it is returning the error code 0x805e0006. When I am trying to open this shape file url in browser it is not getting downloaded also.From ...
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27 views

multiple shapefile export to kml

I 'm new in Python script and i want to export shapefiles in the folder as the kml file with define layer files. for single shapefile it work perfectly refer below script. But I want to export 4 ...
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2answers
59 views

“Phantom” features showing up in QGIS 2.4

I tried searching for this, but am unsure exactly what my problem is. I am using QGIS 2.4 on Windows 8.1. I have a project in which I have been digitizing from OpenMaps. Last night I was doing some ...
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2answers
40 views

How can I export data containing umlauts from PostGIS to shapefile, without losing the umlauts?

I am exporting my Finnish (Finland) data from PostGIS to esri shapefile. I am using the PostGIS Shapefile Import/Export Manager and I don't see any way to specify the encoding of the shapefile's ...
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1answer
55 views

Shapefiles - Polygon type - is it in fact multipolygon?

I'm wondering about the ESRI shape file with shape type 5. When reading the spec I see that "A polygon may contain multiple outer rings.". Does this mean that these outer rings must be combined to ...
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1answer
64 views

how to allow null values in a feature-layer

I'm using ArcDesktop 10.2. I have 30 x,y locations that have 20 fields of numeric data, stored in an Excel spreadsheet. Some cells have no data, and I want those cells to be represented as null values ...
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24 views

How i can have the same xMin,yMin for vector files in Qgis 2.4

i have a .shp file(polygon) in EPSG:2100 - GGRS87 / Greek Grid and an other .shp(points) in the same system(EPSG:2100 - GGRS87 ) but different xMin,yMin. The first has xMin,yMin 583309.00,4152885.94 ...
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46 views

How to link a shapefile with points to a shapefile with lines?

I have a shapefile with points (nodes) and a shapefile with lines (pipeline) which I have extracted from a water distribution network. I have been able to transform the points into the right ...
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35 views

How to save time without date in shapefile's DATE filed using ArcGIS 10.2?

I am trying to save a time in a shapefile's DATE field (without a date, because shapefile can only store something one simultaneously - date or time). I use field calculator with PYTHON parser. I am ...
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22 views

Slow in zoom, pan

I am working on GIS tool but it is very slow when try to zoom, pan or open attributes. can any one suggest is there any way to make it fast?
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30 views

Public GIS data for lots within sections of township and range for NM, USA

Anyone know where to find a publicly available shapefile/fc of lot divisions within sections for township and range of New Mexico? I've been to several government websites that offer this type of ...
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34 views

How to create dynamic maps based on updated attributes in SHP file

I am novice GIS'er. I can create maps and do basic transformation of the SHP file using QGIS. I also succesfully applied formatting based on attributes. I am able to add new attributes to SHP file in ...
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1answer
50 views

Why does ArcGIS Online project my files right where they should be but, ArcGIS for desktop does not

When loading shapefiles into Arc Map 10.2.2 I get the message saying "unknown spatial reference", then my files are not projected where they should be and are usually too small to see regardless how ...
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21 views

Region partitions (shapefiles) comparison in ArcMap 10

I have 2 shapefiles, in each file the region is divided into zones. Each zone from 1st ("large") file is "almost" a union of a few zones from 2nd ("small") file. Specifically, for each union in ...
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8 views

How to make my drop down box can zoom to area that selected? [duplicate]

Why my drop down box didn't work? Ext.BLANK_IMAGE_URL = 'mfbase/ext/resources/images/default/s.gif'; Ext.namespace('toolbarExample'); toolbarExample.app = function() { var map, ...
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59 views

How to create a Network Topology in a shapefile that contains only nodes(geometry points)?

I want to use pgrouting with the shapefile but when I use : alter table network.publictransport add column source integer; alter table network.publictransport add column target integer; select ...
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40 views

SHP, SHX and DBF files became empty (zero byte) overnight on QGIS

This literally happened overnight. I was working on a shapefile in QGIS 2.4 last night but my files (SHP, SHX and DBF) all become zero byte this morning. Has this happened to anyone before? How ...
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15 views

Extracting nodes and links from shapefile in ArcGIS?

Can anyone please tell me how to extract the node data and link data separately from a shapefile using ArcGIS or any other software. And also suggest me if anyone has an idea of any code for this.
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46 views

How to set feature coordinates to values in attribute table?

I have some shapefiles that were produced programatically, and everything came out okay EXCEPT that the geometry information was not written correctly. The coordinates for each feature are null. ...
2
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1answer
56 views

Is it possible to render a large number of shapefiles to a pdf document using Python?

I'm extremely new to GIS, and recently made a map by loading a bunch of shapefiles into QGIS using a python script. However, it took 15 mins to scroll in or out on the image, and the pdf export ...
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1answer
22 views

Geotools create/save shapefile has no geometry information

When I create and save a shapefile in GeoTools, then open it in ArcGIS or QGIS, it doesn't show up on the map, even though the features are there in the attribute table (and all attributes I added ...
2
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1answer
52 views

Where can I find a shapefile of hexagons that covers the world?

I'd like a persistent .shp that covers the world in hexagons (preferably of a decently small area)–does anybody know where I could find something like this, or perhaps what software I could use to ...
2
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1answer
46 views

Convert Layer to Shapefile without losing Feature definitions

I have created a worldmap with custom defined Features, representing State/Zip-Code sales areas. I want to convert them into a Shapefile, so I can convert the Shapefile into a polygon definition file ...
4
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53 views

What versions of Dbase does shapefiles support and where can I find a specification of these formats?

I have been looking around like crazy, not finding any specification which versions of DBase shapefiles support (ESRI shapefiles). I found that GeoTools uses DBase III only, and Wikipedia says DBase ...
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38 views

Geoserver strange inverse polygon rendering

I found strange behaviour of rendering one particular polygon on Geoserver. Red polygon in the link. If you compare SHP data from ZIP file in some desktop software like QGIS and rendering from ...
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43 views

Fiona write crashes

I am trying to write a new shapefile with fiona but after creating the features, i keep getting this output after the program crashes: The program '[6668] python.exe' has exited with code -1073741819 ...
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1answer
36 views

Get shape file polygon attribute value at a specific point using Python (e.g. via PyShp)

I have a shape file comprising multiple polygons. These polygons have attributes. I am trying to write a script in Python that takes a co-ordinate point, determines in which polygon it falls, and ...
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109 views

Geotools shapefile and geotiff displaying problem in JMapPane

I'm trying to get a JMapPane to show up in a JPanel, but without success. Below is the JPanel instance containing the map. I am importing a geotiff and a shapefile layered in that order. Not only does ...
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2answers
61 views

Convert shapely polygon coordinates

I am trying to work with a shapefile using shapely, fiona and python. The original coordinate system is in latitude and longitude that I am trying to convert to state plane system. So I want an ...
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1answer
58 views

Creating new shapefile after merge operation using unionSpatialPolygons

I only recently started playing with shapefiles and R packages for manipulating them. I am looking at creating a new shapefile based on merged polyons by following this example, however, I cannot seem ...
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1answer
36 views

GeoJson based on shapefile : large coordinates

I'm quite new to GeoJson (for use with d3), and in need of some help. When I convert my available shapefile (.shp) with ogr2ogr to a GeoJson-file, the resulting coordinates are very big numbers (in ...
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3answers
41 views

Lossless conversion from shapefiles to XML/JSON/Text

I'm a software developer and I need to create a custom tool that imports ESRI shapefiles (shp + shx + dbf), manipulates the content and then exports new shapefiles. To avoid a complex binary reading ...
3
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2answers
38 views

Running Point To Raster has output coordinate system different from input?

I need to transform a DEM from a Point-Feature-Class (Shape) to raster (GRID). For that I'm using the tool 'point to raster' and it works perfectly. The only problem is that it seems to change the ...
3
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0answers
23 views

What is the area that OGR extracts from the (geometry) shp files for polygons?

The ESRI July 1998 technical documentation for polygon shapefiles at page 10 makes no mention of either area measures or length measures (apart from byte/record-layout matters). Yet OGR enables me to ...
3
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48 views

Algorithm to find the boundary grid points [duplicate]

Let us consider a set S consisting of a collection of grid locations (i,j),i,j=1,\ldots,n, in 2-dimensional gridded plane. Here the point (i,j) corresponds to a rectangular grid in the X-Y plane. ...
3
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2answers
54 views

PyQGIS: Speed up for adding features and attribute arrays?

Context: I'm writing a dynamic import tool for QGIS (2.2 to 2.5) with python. Datatype: Binary Datasets with environmental simulations from HPC which might contain millions of features and terabytes ...
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2answers
44 views

Given a shape file, how can I return the polygon containing a lat/lon location?

I have a shapefile generated by the ESRI product suite. I do not have any ESRI products and my budget does not support their purchase. Aside from fiscal issues, there may be technical limitations with ...
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1answer
35 views

Exporting selected records from a shapefile

I have a shapefile consisting of insurance data and point features. I select the features I want, and then I try to go to Data - Export, and a new .shp file. The process seems to run, but the output ...
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29 views

Google Tracks convert kml to shape and preserve attributes

I've been attempting to convert a Google Tracks kmz file to an ESRI shapefile using the GDAL and libkml(http://www.gdal.org/drv_libkml.html) which I built on my Ubuntu 14.04 (64-bit) system. The kml ...
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1answer
36 views

Iterate through a shapefile

How do i iterate through a shapefile using shapely. This is my code but it keeps outputting the same id. I think that it keeps looking at the same record. fc = fiona.open("file1.shp") print fc.schema ...
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21 views

Convert CSPro .map to ArcGIS shape file?

I have census data that uses the widely-established CSPro software. It also comes with a Map viewer and the data files are .map and .mdf extensions. Does anyone know how to convert these into an ...
2
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1answer
71 views

Calculating area of polygon inside region?

I am new to geographic information systems and i need to calculate the area of a a polygon ( a circle to be precise) that falls inside the boundaries of a region, say a state or a country. For ...
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36 views

Assign a IGeometry to Feature.Shape

I'm trying insert a feature into a FeatureClass, but when I try to assign the geometry to featurebuffer the app return the next Error: The remote procedure call failed. (Exception from HRESULT: ...