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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61 views

Automatically split KML into point, line and polygon SHPs?

I have a lot of KMLs that include points, lines and polygons together, is there a way to automatically parse them into separate shapefiles (one for point, one for line, one for polygon) in QGIS or ...
3
votes
2answers
152 views

Calculate geometry on some features have same X and Y for start and end?

I did "Calculate Geometry" on a line shapefile to obtain the coordinates X and Y for the start and the end of all the lines of the shape. But some lines resulted with the same X on the start and on ...
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0answers
15 views

How to do select by attribute in Petrel

In Petrel, after importing the shp file, I can see attribute table andselect the features I want to display just clicking by check box of each one, but I could not find any icon to select objects with ...
4
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2answers
259 views

Are mixed geometry types allowed in a shapefile?

Does the shapefile support mixed geometry types (ie. point and polygon all in the same file)?
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1answer
125 views

Ward maps for Indian Cities?

i am looking for maps or shapefiles of ward boundaries of cities in india, it has been arround three days since i have been searching for them, but got very few. Please help me if somebody knows ...
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0answers
38 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 ...
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2answers
136 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 ...
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1answer
62 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
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1answer
49 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 ...
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1answer
40 views

ogr2ogr KML to SHP generates invalid file names from layer names

I have a collection of very large KML files that I'm trying to convert to .shp. I'm iterating over 200+ KML files with an average size of around 20 MB. Each KML contains multiple layers, some of which ...
5
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4answers
139 views

Converting shapefile from Shift_JIS to UTF-8 when the usual methods fail

Long story short, I'm trying to import this ESRI shapefile of Japan into CartoDB. (Sorry, no direct link: to download, click on the orange ファイルのダウンロード button, check 同意する to agree to the T&C, then ...
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2answers
104 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, ...
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1answer
50 views

opening many nested shapefiles

I have a large number of shapefiles (>500) representing species' ranges for North America. I am wondering how I could open them all automatically, without having to open them one at a time in ArcGIS? ...
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1answer
71 views

error importing shp into postgis using ogr2ogr

I run an automated script that copies a number shapefiles into PostGIS. I have a problem with one dataset which fails during the export. As the roads.shp dataset is maintained by someone else, I ...
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0answers
18 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 ...
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2answers
71 views

How to read ArcGIS files in R?

I am new to using spatial data in R. So far the tutorials I have seen consist of using maptools, map, ggplot2 and rgdal to open ".shp" files along with ".csv" files to plot the polygons/ points using ...
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2answers
89 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 ...
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1answer
105 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 ...
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1answer
79 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
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1answer
125 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
46 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 ...
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1answer
41 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 ...
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0answers
80 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 ...
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0answers
35 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 ...
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2answers
40 views

Importing and exporting KML into and from DashDB for Geospatial Analysis

I am a recent convert to IBM's DashDB, and I considering proposing to use it at my work. My case would greatly be bolstered if I could show good, easy integration for geospatial analytics data, namely ...
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2answers
131 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 ...
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0answers
18 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) ...
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0answers
28 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 ...
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0answers
23 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. ...
2
votes
3answers
126 views

Procedure putting online a graveyard in a GIS

I would appreciate some advice. I’m not an expert in GIS but recently I studied a bit, came on different sites. Among others QGIS, MangoMap, ArcGIS, … etc A group of 6 small towns in Belgium wants to ...
4
votes
1answer
262 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 ...
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1answer
20 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 ...
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0answers
38 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 ...
2
votes
1answer
63 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 ...
0
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1answer
39 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 ...
0
votes
1answer
39 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 ...
0
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0answers
85 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 ...
0
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0answers
19 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
61 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: ...
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0answers
50 views

PostGis without shp2pgsql

I recently reinstalled postgis on my pc, following these instructions link. The installation is successful, and for several days work using PostgreSQL and PostGIS without problems. Now, I need to ...
2
votes
1answer
83 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: ...
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0answers
36 views

Problem with QGIS raster interpolation from a point shapefile after duplicating the shapefile

Let me explain a problem I had with QGIS to see if somebody else has experience it. I created a raster from a point shapefile through the Raster-> Interpolation menu with no problems. After that, I ...
0
votes
1answer
50 views

Connectivity Issue in Road Network - Error Graphic Pick 1

I have read around 6 various forums posts and still could not figure out where I was making the mistake so please help me. I have downloaded the OSM shape file and and have clipped a pretty large ...
0
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0answers
11 views

Shape to Geo code xml generation

I would like to know the process of generating GEO codes from a shape file (Indian coastal districts/ states). Here we have used ArcGIS for generation of the shape-file along the indian coast. Can ...
0
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1answer
48 views

Sampling one shapefile with polygons of another using R?

I have two shapefiles that partially overlap. One (the bigger one) consists of several polygons which represent fields I am interested in. The second, is a rectangular shape that overlaps about 30% of ...
0
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1answer
36 views

ggplot2 plots polygons with wrong topologies

I'm trying to plot polygons in R using ggplot2. In GRASS, QGIS and normal R the map renders fine, but ggplot2 seems to have some kind of topological difficultes I can't explain. With normal R it looks ...
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2answers
58 views

Writing PyQGIS Output to Shapefile

I'm trying to find the closest point on a line to another point as in this post. However when I try to write the result as a shapefile I get an error: TypeError: ...
1
vote
1answer
50 views

No cadastral maps in the UK. Solutions/alternatives for a methodology?

I need help reworking a methodology in the absence of cadastral data in the UK. The aim is to plot a range of businesses in a UK city on separate layers (according to business type) as polygon ...
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0answers
65 views

Geotagging photos with Point Shape via Time Stamp

I have waypoints which I marked with a gps device - unfortunatelly no track/route. And I have photos which I took at the same day. Now I want to interpolate the points to line and use this line to ...
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2answers
35 views

Is it possible to append the same type of shape file captured on two different Trimble Juno 3b's with ArcPad 10?

I will soon have access to two Trimble Juno 3b's which will both have ArcPad 10. I have done some practice with one Juno 3b and I am very confident with my ability to use them. All I need to know is ...