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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0
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2answers
94 views

Converting *.xlsx to shapefile in ArcGIS for Desktop?

I'm trying to import an xlsx file into ArcGIS (10.2.1, everything is fully licensed and activated), and convert it to a shapefile for further analysis. The xlsx file is ~180mb, and contains just ...
1
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0answers
33 views

Mapnik performance - large polyline dataset

I'm working with a very large set of polylines - contour data - to be rendered with Mapnik. (The contours are generated using gdal_contour from SRTM data.) At present I'm storing them in PostGIS and ...
8
votes
4answers
655 views

How to publish shapefiles to web with no programming required?

I am new to GIS web development. I do not have any programming background and I want all the maps that I design in GIS (shapefiles, using ArcGIS Desktop 9.3) to be published on the web. Please ...
1
vote
1answer
39 views

Unable to read different kind of shape files

I have written the java code to read the shapefile and insert it into the table. But the way I have written code it will accept only a multistring .shp file. It fails for other shapefile geometry ...
0
votes
1answer
47 views

How do I export a line shapefile from a network downstream from a point in ArcGIS 10.1?

I'm using the National Hydrological Dataset's flow lines to trace downstream movement of water is a freshwater diversion from the Mississippi river in Louisiana. I've gotten the trace to run using ...
1
vote
1answer
914 views

Calculating distance between latitude and longitude points using python

I have a database of 2000 points, which is in CSV format containing latitude and longitude. I want to find the distance between all these points, and then show these points in a map by using pyQGIS; I ...
0
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0answers
17 views

Calculate mean of shapefile based on another shapefile

since days I´m really stuck with my problem. As you can see in the figure below I have two shapefiles. The lightgrey one simply contains a grid with a cellsize 30 by 30 meters. The second one (blue) ...
0
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1answer
56 views

Explaining ArcGIS Raster to Polygon output?

I want create a new shapefile with selected fields found in a raster which depicts landcover. I first attempted to run Raster To Polygon. However, some class names no longer appear, as shown here: ...
1
vote
1answer
427 views

Arcpy ERROR 000732 when ApplySymbologyFromLayer

I want to split a shapefile by certain attribute and then apply a symbology layer, finally output it as a KMZ file. R1 = outpath + 'R1.lyr' arcpy.MakeFeatureLayer_management(fc, R1, "WHERE CAUSE") ...
3
votes
1answer
95 views

Issue with dissolving a polygons layer in QGIS 2.4

I downloaded a dataset of roads and parks from OSM. I then buffered the roads and merged with the parks. Now - all i want is to dissolve / union all the features in the merged layer. I fail to do it ...
0
votes
1answer
98 views

How to turn shapefiles into raster and aggregate them into one raster

For example i tried this but it doesn't work rast_a<-raster(extent(shp_1)) res(rast_a)=100 rsh<-rasterize(shp_1,rast_a) rast_b<-raster(extent(shp_2)) res(rast_b)=100 ...
-2
votes
2answers
77 views

ArcMap creates unnecessary file types when saving shape file (.cpg .prj, lock, etc.)

When saving shape files, geocoding results or even exporting data in ArcMap, many different files are created. Most of the time when I save a shape file, I want only the shape file and not a .cpg, ...
5
votes
4answers
1k views

Why doesn't the split tool return any records in the attribute table?

I've been trying to split a large land use shapefile using a set of study area polygons as the split feature, but when the function finally finishes running (the land use dataset is quite large), all ...
17
votes
4answers
3k views

How do you determine a shapefile's charset?

Is there a way to determine the charset used for a given shapefile?
13
votes
3answers
7k views

ogr2ogr converting to shapefile - how to select feature types?

Shapefiles can only have one geometry type, but many other formats (kml, geojson) can have multiple types. When converting to shapefiles, is it possible to to tell ogr2ogr to create multiple ...
0
votes
0answers
15 views

How to design map tile based on Geoserver?

Im developing a Mapservice on Geoserver. I would like to design my map on the Geoserver editing its CSS or SLD. Is there a possibility to have edit tools? Or how can we edit with TileMill of ...
1
vote
2answers
75 views

Correlation analysis of two polygon shapefiles with nominal data

I am working on a research- trying to model vegetation types based on factors affecting their distribution. In that case I have observed a strong relation between vegetation and soil types, from just ...
1
vote
2answers
107 views

What causes large shapefile file size and can you effectively reduce it?

I have a shapefile that contains all counties of Poland in one shapefile. The shapefile is provided by central cartography agency. The file with counties they provide is around 30MB. The same ...
2
votes
1answer
513 views

Using map from ArcGIS Server in radMap?

I was wondering if there was a way to use a map that I have stored on an ArcGIS Server in a telerik radMap. I am not very familiar with the radMap control. I have found the documentation on using a ...
3
votes
1answer
56 views

Is it possible to display filtered results on OpenStreetMap?

is it possible to goto www.openstreetmap.org and do a search for a place like Auckland (New Zealand) or Melbourne (Australia) -but- only show Cities or Neighbourhoods or Suburbs? I understand that ...
5
votes
1answer
250 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 ...
0
votes
0answers
48 views

Shapefile to Mysql error using ogr2ogr

I'm following this tutorial. I installed the “GDAL Complete” Framework from kyngchaos.com and I tested the installation on Mac. I have GDAL 1.11.2, released 2015/02/10. When I am trying to run this ...
2
votes
2answers
2k views

Create points from lines

I used the Bearing Distance to Line command (Data Management) in arc to convert UTM coords (i.e. of a plot center), bearing and distance to the figure shown below. The end of each line represents a ...
3
votes
3answers
4k views

How do you add file name to an attribute field?

Does anybody know how to add the shape file name to a field in the file's attribute table? I've found a description: 'You have to use inline variable in CalculateField like %Name% in expresssion ...
2
votes
1answer
110 views

How is QGIS opening a shapefile with no *.prj file?

I was wondering how QGIS could open a shapefile with no *.prj file (for instance, let's say we have a shapefile with just *.shp, *.dbf and *.shx files). If the On the fly reprojection option is ...
2
votes
1answer
42 views

How to save .shp with layers 'baked' in with QGIS

I'm having no problem applying labels to the shapefile I'm working on in QGIS, but I can't seem to save the new shapefile with the layers 'baked in' for uploading to Mapbox, and then styling. I've ...
1
vote
8answers
6k views

Finding shapefiles of pipeline data?

Does anyone know where I can get or find shapefiles for pipelines (USA location)? Preferably free as I've never done pipelines before and I'm meeting a client next week that is doing pipeline work. ...
1
vote
1answer
31 views

Copy and paste a DXF Polygon from Deed Plotter to a Shapefile in ArcViewer troubles

I am creating an easement layer in ArcViewer by using Deed Plotter to create the shape of the easement and then adding the dxf file as a layer in ArcViewer. Then I start an edit session, editing the ...
0
votes
0answers
56 views

Installing mysql_fdw on Windows

I want to create a join between a spatial database (PostGIS) and a non spatial database from MySQL. Both databases have a unique ID who can be joined. I found a way to do this with PostgreSQL and a ...
0
votes
0answers
33 views

Optimizing shapefile lookup time?

So, I have a ~1GB shapefile which is running circles around a ~5MB shapefile when it comes to feature look-up time (using python, with GDAL): def check(name, lat, lon, attributeFilter:'SQL ...
0
votes
2answers
905 views

Converting Trimble SSF format to shapefile? [duplicate]

I would like to convert a small amount of data from trimble ssf format to shp format for inclusion in an ArcGIS database. I have been trying to do this for a few months and not success. I have a ...
0
votes
0answers
22 views

Generalize a selected part of shapefile

I see v.generalize takes the whole shapefile as input, but is there a way in QGIS to generalize/smooth selected part of a shapefile? I will select the part in Node Tool and then use v.generalize tool. ...
1
vote
0answers
24 views

QGIS Partitioning Regions

I have to polygon shapefile maps in QGIS that cover the same area. One with ~90 polygons (call them regions) and the other with about ~800 polygons (call them zones). I want to add a data column in ...
0
votes
2answers
56 views

Loop for exporting shapefiles from an existing shapefile

I have a pnt shp with 50 pnts. I want to export each one of it in a separate shapefile with arcpy writting a loop. My problem is that i want the output name i create has a different name, e.g. for ...
4
votes
1answer
229 views

Converting 12-hour time to 24-hour time using Field Calculator

Does anyone know how to convert string time formats in ArcMap v10.2 from 12-hour to 24-hour using a simple query in the Field Calculator? i.e. NO Python, NO editing in Excel, NO changing my Windows PC ...
0
votes
1answer
18 views

Problem with editing in geotools 13.0

I have a problem with getting the ID of a newly created feature in the shapefile. I have a datasource / datastore that reads and writes to a shapefile. I create a feature, add it to the store and ...
1
vote
0answers
34 views

Shapefile data not displaying on MapInfo workspace?

I have a number of shapefiles created from ARCMap and would like it displayed in MapInfo (version 10.5) but the polygon is not displayed on the work space. I can view my attributes table by browse ...
1
vote
1answer
501 views

Using kriging with data in GDB

I have series of data in my GDB I am running the program under VBA and what I want to do is using the data by the tool Kriging. This is what I thought: First, Kriging needs data that must be a ...
11
votes
2answers
12k views

Merging polygons in shapefile based on field values?

I have a shapefile with a lot of polygons in it. These polygons are grouped into a category: district. How can I merge the polygons based on the same name of the category within this shapefile?
3
votes
3answers
137 views

California State Parcel Data

I am looking for California state parcel data such as owner name, no. of stories, year built etc., for each parcel. I can get to the level that I can browse them in property appraiser site but don't ...
2
votes
1answer
56 views

Merging ShapeFiles with QGIS for UK counties

I want to draw a map for all the counties of UK including North Ireland. Since I can not find a source of counties including both North Ireland and Britain. I try to merge two shapefiles with QGISfrom ...
20
votes
10answers
22k views

Adding Attribute data to shapefile?

I can display a shapefile in openlayers but I need to add some attribute data. I can open the dbf file in excel but there is no save as option in excel to the updated file as a dbf. What is the ...
0
votes
1answer
35 views

Why are these two shape files different?

Can someone please explain why these two shapefiles are different: Neighborhoods in Cambridge, MA ; and Water bodies in Cambridge, MA. In particular, I am having trouble working with the water ...
2
votes
1answer
49 views

Is there Data Loader for QGIS or Spatialite?

Is there a tool that works like the data loader of ArcGIS for QGIS (or via Spatialite )? To integrate data in a database or a shapefile without having the same structure (and the tool allows to ...
2
votes
2answers
383 views

Problem when converting sosi to shapefile with ogr2ogr on Linux

I am trying to convert a SOSI file (Norwegian geodata format) to a shapefile. I have set up gdal, but apparantly there is a lot of things that I dont have support for. When I do a ./configure, this is ...
0
votes
0answers
18 views

convert .shp to .gpx with selected attributes [duplicate]

I am working with QGIS 2.6/2.8 (1.8 is installed too). Right now I am planning an inventory and want to convert a .shp file to a .gpx including the Column "fid" from the attribute table. Is there a ...
0
votes
1answer
34 views

Graphical modeler in QGIS. I can't find a model [duplicate]

I'm a doing a tutorial for QGIS and at one point I have to use 'Join attributes by location' model but I do not find it in the Graphical modeler. Does it have to be there? I have to download it from ...
2
votes
2answers
278 views

Writing shapefile with projection defined crashes fiona

I've just started trying to use Fiona to write out shapefiles. I found the example code below, which seems to work fine from shapely.geometry import mapping, Polygon import fiona # Here's an example ...
0
votes
0answers
35 views

Load a shape file in postgresql DB with php

I am trying to load a shapefile in a postgis database using the exec() command. I have read the format I have to follow from here and I checked several similar questions from the forum. Based on the ...
2
votes
1answer
44 views

Extracting intersection areas in R

I have two polygons. One contains fields(X,Y,Z) and the other contains soil types (A,B,C,D). I want to know what area of every field contains which type of soil. I tried the following: ...