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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14
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1answer
760 views

The next big thing in standardized spatial data exchange format?

I remember reading something a few months back, in the latter half of 2012, about a coordinated group effort to design a new standard for sharing geographic / spatial data. It has or aims to have the ...
0
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1answer
43 views

Converting shapes using OGR2GUI

I am trying to convert a MapInfo .TAB file to a Shape file while setting the projection of the target to NAD83 UTM Zone 19. The latest version of OGR seems to not have this projection available in the ...
1
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1answer
280 views

Using Openflights database in QGIS?

I would like to have a shapefile with the airports position and the routes of the planes I've found Openfilghts but I can't use it in QGIS. Seems that the format of the DB .dat is not supported by ...
0
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1answer
57 views

Using Spatial Adjustment to georeference shapefile?

I am having trouble using spatial adjustment to georeference a shapefile that I created from a CAD drawing to a basemap of satellite imagery. At first, the shapefile had an unknown coordinate ...
1
vote
1answer
26 views

Where can I find Hawaii public transit data?

I am looking for public transportation routes and stops for Hawaii public transit. So far I have found a shapefile for TheBus routes and stops for the island of Oahu from the state of Hawaii Office ...
1
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0answers
13 views

Create a map of only one country in DIVA-GIS

I made a map of china with the places where the climate is suitable to plant Brussels sprouts. The bounderies of China are in a shapefile. However the layer with the colormap showing where the climate ...
0
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1answer
43 views

Crop Raster from using Polygon shapefile in R

I am trying to crop a raster by a polygon in R to the state of Sergipe-Brazil. My raster is a raster brick criated by 7 .tif files which are EVI (vegetation index) time series. Since the EVI archives ...
3
votes
2answers
230 views

Group adjacent polygons with similar (but not same) attributes

In ArcMap 10, I have a few dozen tiffs with cells that represent habitat area that has been burned. Each burned cell has a Julian date of the fire associated with it. I want to end up with polygons ...
0
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0answers
46 views

cartopy: plotting shapefiles

I am new to gis and am trying to plot a shapefile containing land polygons. (From OSM.) Unfortunately my output image is always empty (i.e. white). Can somebody tell me what I am doing wrong? import ...
0
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0answers
9 views

Shapefile for Individual districts of India [duplicate]

I am looking for shapefiles for Individual districts of India (640 or more districts based on newly created districts). I am working to find out "Urban and Built-up" using MODIS data. I am studying ...
0
votes
1answer
45 views

Why do we georeference from the image to the shapefile (and not the other way around)? [closed]

Why do we georeference going FROM the image, TO the shapefile (and not the other way around)?
1
vote
2answers
765 views

NA values in dbf when exporting shapefile from R with writeOGR?

I´m writing an esri shapefile from R (2.14.1) on windows, using writeOGR in the rgdal package, in the resulting dbf file, NA values in the spatialpointdataframe (in numeric columns) are not translated ...
2
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0answers
77 views

Update AutoCAD 2015 custom drawing property fields from ArcGIS Shapefile

I need to update AutoCAD 2015 custom drawing property fields from a GIS point dataset shapefile format (in ArcGIS). I would like to do this for an AutoCAD template as project work starts. I have ...
2
votes
0answers
41 views

Can ogr2ogr “reverse clip” (or “clip out” or “erase” or “difference”) one shapefile from another?

Is there a means in ogr2ogr to "clip out" one shapefile from another? I know ogr2ogr -clipsrc B.shp out.shp A.shp will remove any part of A.shp that is NOT in B.shp. Is there an ogr2ogr command to ...
0
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1answer
40 views

Issue comparing two separate shapefiles

I have two separate shapefiles (A&B) with road data that overlaps, but not in every place and they are very similar but do not line up perfectly. I want to compare them to each other, but they do ...
4
votes
4answers
7k 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 ...
5
votes
3answers
1k views

How do I rename Shapefiles in QGIS?

I have a huge list of layers in a project that are named in a foreign language. I want to translate and add the English title to the name. When I right click on a layer and choose Properties -> ...
1
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0answers
15 views
1
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1answer
181 views

How to generate a tiled map from a spherical mercator SVG?

I'm not a GIS person; this is really just a side task, so I probably have terminology/strategy incorrect; I would ask that you please bear with me. I have the following requirements for a Qt-based C++ ...
0
votes
1answer
18 views

Working with shapefiles in MapServer: adding color, smooth edges

I am successfully serving Koeppen-Geiger climate shift data from a MapServer instance. Here is an example WMS request to show the current state. Unfortunately this looks nothing like the ArcGIS ...
1
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3answers
837 views

Calculating new shapefile areas after clipping using ArcGIS for Desktop?

I'm working with the WWF ecoregions, which use the GCS_WGS_1984 geographic coordinate system. I have clipped the ecoregions with a species range (consisting of two polygons), but the new attribute ...
0
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0answers
17 views

Automatically calculating area of polygons in shapefile using ArcGIS for Desktop? [duplicate]

I want to calculate area based on FUNGSI_KWS. When I merge, for example "HL" with "HL" on FUNGSI_KWS, the value of area didn't summary automatically. Is there any possible way?
-2
votes
1answer
214 views

Merging TIFF file with other shapefiles to use ArcGIS geoprocessing tools?

I'm using ArcGIS 10.1 for Desktop. I have a TIFF file and I already applied the Copy Raster to make it an ESRI grid (i.e. I did not specify any file in the output field). The problem is, when ...
2
votes
1answer
2k views

Exporting shapefile to Google Earth format (*.kmz) using QGIS?

Is there a way to export a shapefile to Google Earth format (*.kmz) using QGIS?
3
votes
1answer
276 views

Unwanted spaces being placed in shapefile text fields by ArcGIS Desktop?

I have a table with a row Page_Number_N some of the rows have values and others just have a space. For example record 4 is just a space. Field values are Strings. 1 2 3 5 When I start an edit ...
1
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0answers
17 views

How to populate text field in a shapefile table by 0 length string using ArcGIS? [duplicate]

Experiment: Original table: Field calculator expression applied to TXTfield: “” Add numeric field: Field calculator expression applied to numField: len( [TXTfield]) Result: Note: ...
2
votes
1answer
27 views

Get layer's “Feature Type Details” using geotools

I'm trying to do something like this: Check Geometry Type of a Shapefile Using GeoTools? ... but getting from a layer (Shapefile source) in Geoserver. In short, how can I get the data from this ...
1
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0answers
23 views

pyqgis change or update attribute data with real-time data or Timer update,Memory has been growing

I update my shapefile attribute data by QTimer ,and labling it, keep the lable visiable,change attribute by 1 minute, but the Memory has been growing 1 layers ...
0
votes
1answer
36 views

Adding a column to polygon table with correct corresponding address

I have 2 shapefiles: one with polygons (buildings) and their properties other one is a point address shapefile - it contains points that are inside polygons from the other SHP, but it's still ...
2
votes
1answer
57 views

How can I intentionally corrupt the geometry of a shapefile?

I am in need of a few shapefiles with bad geometry for testing some Python code. How can I intentionally create bad geometry in a shapefile? Preferably I would be able to create three (point, line, ...
0
votes
1answer
17 views

Illustrating the average utilization of trails by hikers

I have a question about illustrating the average utilization of trails by hikers. I have made a survey where I asked the participants which trail they used for hiking.There are a lot of trailoptions ...
0
votes
0answers
60 views

Multiple join of Access data with ArcGIS shapefile

I am looking for a solution for joining constantly modificated data to my shapefile. The shapefile consists of polygons. Each one has a code. In the Access database, I have varias colums for one code ...
5
votes
1answer
1k views

ogr2ogr selecting features by attributes

I am writing a shapefile after some processing; however, in the final step I need to do some selection by attributes from the the shapefile. I am using the command in a shell with the aim of using it ...
0
votes
2answers
1k views

Using Select By Attribute on shapefile in ArcPy?

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
1answer
92 views

How to reference all the shapefiles within a Windows folder and merge them in ModelBuilder?

I have a group of shapefiles that are stored in a Windows folder. There are multiple users that will be adding shapefiles to this folder or editing existing shapefiles in this folder on a continual ...
1
vote
2answers
50 views

How do I add my own data to an existing shape file?

I want to add event data to a geographical map. I have district shape files for Zimbabwe that I downloaded from GIS. However I now want to add my own data on to it. How do I do this? I have added ...
2
votes
2answers
929 views

How to load geographic data into Hadoop (Hive) and then to be able to call spatial functions on them?

I need to load some geographic data into Hadoop (Hive), and then, to be able to call some spatial functions on them using Hive. My input data format is ESRI shapefiles (but could be another format, I ...
2
votes
2answers
103 views

Splitting vector file by date (year) but column containing dates in Day/Month/Year format?

I am using national accident data in QGIS and quite frankly the dataset is huge as it contains every recorded accident between 2005 and 2014. I've split datasets by field for a number of vector ...
1
vote
1answer
32 views

Shapefile with point or polygon

I'm just beginning with SIG and QGIS. I've been given two shapefiles with cities. One shapefile appears like point shapefile in QGIS, the other like polygon shapefile. The problem is that the ...
2
votes
1answer
87 views

Creating shapefile from polygon points for CartoDB?

I have an Excel file that contains polygon coordinates for different areas. The spreadsheet has three columns: latitude, longitude and area name. Each coordinate makes of a part of the boundary of a ...
2
votes
0answers
47 views

Load shapefiles stored in web page in QGIS?

I prepared a map with QGIS and published it via QGIS cloud free. Some layers are quite big, and the cloud size 50MB limit has been reached. If the layer sources could be stored in my web page --- ...
1
vote
1answer
35 views

QGIS crashes (dumped crash) while importing SHP layers or SpatialLite

I meet problems with the last version of QGIS (Lyon 2.12.3) 64bits on Windows 7. The software crashes as soon as I load a SHP layer or use SpatiaLite layers (created from OSM data). Besides, each ...
0
votes
1answer
30 views

Averaging multiple values to a single value by common field ID

I want to see how accurate/representative a centroid's datapoint value is compared to averaged multiple datapoints values for the same polygon. There are MANY polygons in the same shapefile. I have a ...
1
vote
1answer
17 views

Shapefile of South Tyneside borough (north-east England) boundary

I'm looking for a free-to-download shapefile (polygons) of South Tyneside borough. South Tyneside is a metropolitan borough in NE England. Can anyone help?
0
votes
1answer
56 views

How to get, then export as .csv the lat lon centroids from shapefile layer

I have a shape file with a whole lot of regions on it. I need to find the centroids for each of these regions in the shapefile (as latlons) and export this as a .csv I have done extensive research, ...
7
votes
1answer
208 views

Convert longitude/latitude to pixels on the map

I have a map from here. I want to be able to simply convert arbitrary lon/lat pair to pixels on the map (also the ability to do reverse conversion). The maps come with .tfw file and projection info, ...
0
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0answers
34 views

Expanding shapefile shapes

Given a coastline definition (e.g. NOAA GSHHG or OSM Coatlines), I would like to "expand" or "grow" the shape defined by a set amount, e.g. 100m. For example, given a island like this (with 8 ...
2
votes
1answer
99 views

How to use GIS data with CGAL?

I read a few posts here at GIS.SE that points to useful algorithms in CGAL. I'd like to test algorithms in CGAL such as medial axis transformation/polygon skeleton extraction, but the examples on the ...
0
votes
3answers
4k views

Calculating distance between points using ArcGIS Desktop?

I want to write Python syntax to calculate the distance from point to other points in the water network and so on for others, I have 21 points. I need distances have to follow the network That ...
2
votes
1answer
235 views

Iterators in model builder - merging nested files with same filename ending

I am trying to merge files that are nested in different folders by their file names. For example folder 1 contains up to 100 subfolders that each contain a set of shapefiles: subfolder1_A.shp, ...