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.

learn more… | top users | synonyms (2)

0
votes
1answer
37 views

Clipping raster with polygon for band-by-band output using ArcGIS Desktop?

How do you clip a raster image with a polygon shapefile so that the output is multiple clipped rasters, each one a band (i.e., clipped raster band 1, band 2, and so on)? I've tried the clip tool for ...
2
votes
0answers
50 views

Importing shapefile problem, unknown geometry type in QGIS

I have used ArcGIS extensively, but am at a new job with only access to QGIS. I am trying to import a few shapefiles and am having some problems. First, I opened the shapefiles in esris free browser, ...
0
votes
0answers
11 views

Change OpenLayers.Control.ScaleLine()

I have mapfile MAP NAME "MapChiTieuDau" EXTENT 779275 2222000 788430 2233835 SIZE 800 800 UNITS meters STATUS ON IMAGETYPE png SHAPEPATH ...
7
votes
2answers
134 views

Where can I find Historical GIS datasets?

I've been looking for a while for Historical GIS datasets. In a lot of places (also in answers here at StackExchange), people are referring to a great dataset at ThinkQuest, which contains shapefiles ...
2
votes
1answer
74 views

Convert raster to polygon

Using ArcMap 10.3, I want to digitized only the pale blue polygons in the raster into shapefile with "Raster to polygon" tool. This is the raster: I get a shapefile with gridcode field, but i don't ...
0
votes
0answers
10 views

Rename field in SHP file (DBF) with ArcCatalog [duplicate]

I want to rename some fileds on a SHP file, (the fields on the DBF file), using ArcCatalog (ArcGIS Desktop v10.2.2). From ArcCatalog, right click on a SHP file -> Properties... -> Fields. Then the ...
1
vote
1answer
61 views

Given a collection of polygons, how do you find which one contains a given point? Java or Python

I'm looking for Java or Python libraries that will help me answer this question efficiently: given a collection of polygons (via shape files or GeoJSON), which one of them contains a given point? The ...
1
vote
1answer
61 views

Unable to edit the “id” field in in a qgis shapefile layer (but everything else seems to work)

I am trying to create a polygon shapefile layer in QGIS (2.12.1). Because I will be creating many polygons I'm not going to be able to maintain a unique id number manually (without keeping track of ...
1
vote
0answers
36 views

Using Python Opensource Libraries to check users who visited a store [closed]

I have a few files with location information: 1) User Lat Long Pings in Parquet Files (can be converted to CSV) format - this contains userid, timestamp, lat and lon 2) US County/State Shapefile 3) ...
0
votes
0answers
31 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 ...
1
vote
1answer
62 views

GDAL Python OGRFeature .GetGeometryRef vs .Clone().GetGeometryRef

Just recently I was trying to get the geometry of a polygon stored in an ESRI Shapefile. In the script I was trying to read the polygon as follows: import ogr path = "shape.shp" ds = ogr.Open(path, ...
0
votes
0answers
43 views

Number of polygons in shapefile too high

I downloaded administrative shapefiles from www.gadm.com/country (China). The Python (Basemap) code below tells me that there are 2365 polygons in it. However the .csv and .dbf files included with the ...
0
votes
0answers
9 views

How to calculate area percentage from polygons from one shapefile within another? [duplicate]

I'm working on a project where I have to create python code that takes land-use data and adds a percentage field for each land-use category in a Census Tract shapefile. I've been trying to work with ...
0
votes
0answers
38 views

Getting historical administrative boundary GIS files for India?

I am currently working on a project for which I need to get GIS maps of India at a district-level in the 80's and 90's. India's district and state boundaries have changed considerably over the time ...
2
votes
0answers
79 views

NetCDF to Shapefile with Python and GDAL?

I need to save my outputs, which are netcdf files or panda python tables, to shapefiles. They cannot be rasters because the software I am loading them into accepts shapefiles only. I have googled ...
0
votes
0answers
30 views

Using shapefiles as a reference for accuracy assessment in ecognition

I classified my project and got an esri shapefile with points in it. Those points are hand made samples with the right class assigned to them. Now I need to use those samples to check my own ...
1
vote
1answer
50 views

How to do spatial join in FME by preferring points with same attribute

First of all, I'm new to FME, but I'll try to be specific with my question. I have two different shapefiles with point features. These points have information on bridges and overpasses etc. but are ...
0
votes
0answers
36 views

Searching for UN regions/sub-regions shapefile

for a visualisation project I need the boundaries of the UN regions as defined here : http://unstats.un.org/unsd/methods/m49/m49regin.htm That's 21 polygons for the sub-regions. I have been looking ...
1
vote
1answer
48 views

QGIS: multiple values in a single field of the attribute table

This is my first question on this site: it is probably already been exposed many times, but try to forgive me if I could not find it. Secondly, English is not my native language, I will try to be as ...
1
vote
1answer
167 views

How to add Lat/Lon (decimal degree) values in Attribute table field in ArcGIS?

I have a point shape file (WGS 1984, GCS) with some random data points. I want to add the latitude and longitude in attribute field.
0
votes
1answer
19 views

Layers not overlapping in QGIS? [duplicate]

I downloaded a bunch of wpts from my gps. I converted them to .SHP format with a CRS WGS 84 in QGIS, and started a new project. I then exported some satelite imagery from the internet as a tiff and ...
1
vote
2answers
83 views

ESRI Shapefile not loading into SQL Server

I have been loading a number of shapefiles into SQL server 2012 using ogr2ogr.exe and the MSSQLSpatial driver. Up until this point, I have been very successful with doing so. However, I have now run ...
1
vote
2answers
86 views

Speeding up Python code to convert multiple csv to shapefile?

I am trying to work with some crime data from https://data.police.uk/data/ The data is organised in several .csv files, one for each month and each crime is geocoded with Lat and Long. As the file ...
2
votes
1answer
97 views

Extracting land cover data (in percent) from shapefile in QGIS?

I have two shapefiles, one containing stream catchment areas, the other information on land cover classes. The problem: I need to know how many percent of the catchment area is covered by forest, ...
0
votes
1answer
31 views

Merge adjacent polygons

I want to write software that merges groups of (mainly) adjacent polygons. For example, merge the US counties into sales regions. Then, display either the boundary of these sales regions or fill them ...
0
votes
1answer
116 views

How to edit a tiff aerial image in ArcMap 10.3

(beginner with arcmap) I have aerial images in tiff format and I need to edit them in order to draw polygons on them. When trying to edit them I get a message that says that there are no layers ...
1
vote
0answers
44 views

GIS shapefile of corporate headquarters located in the US?

I am conducting MSA (Metropolitan Statistical Area) level analysis where I am tracking the number of corporate headquarters in the top 50 MSAs from 2000 to 2014. I am looking for a shapefile like this ...
3
votes
2answers
94 views

Projection for Calculating Distances in Continental United States?

TL;DR Question: I want to calculate distance from point to edge of nearest polygon for 2,000 points in Continental United States. What is the best projection to use? Full Question: I have two ...
3
votes
1answer
100 views

Creating centerline of polygon using PostGIS?

I am aware of Finding centrelines from polygons in QGIS? but I am looking for another Open Source GIS way to do this. Is there a possibility to create centerlines in PostGIS? I have this shapefile ...
0
votes
0answers
29 views

Axis order in user Shapefile

I have a shapefile which has the following PRJ GEOGCS["WGS 84", DATUM["World Geodetic System 1984", SPHEROID["WGS 84", 6378137.0, 298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], ...
0
votes
0answers
35 views

Watershed delineation for multiple points in a single shapefile

I have a shapefile with 23 points along a 11 km river and I wish to create upstream watershed boundaries for each point without having to split the shapefile into 23 individual points. I have snapped ...
0
votes
1answer
26 views

Converting Tabfile to a Shapefile with NodeJS?

How to convert a file with NodeJS? npm ogr2ogr not good for me. OS : win 8.1
1
vote
1answer
24 views

Polygons created for holes after running ST_Collect

I ran an ST_Collect query on a polygon dataset using ogr2gor -dialect sqlite -sql SELECT ST_Collect(geometry),id FROM wl_test GROUP BY id The result is a multipart polygon, which is what I want, ...
1
vote
2answers
69 views

Looking for Shapefile of Island Names

A lot of Island nations, like Japan and Indonesia, have many islands within the same country. Other islands, like Borneo are part of multiple countries. I am looking for a shapefile that gives the ...
1
vote
1answer
67 views

Merging vector with many polygons to single vector polygon in QGIS?

I am trying to add the boundaries of one shapefile (A) that are contained within a single polygon to the shapefile (B) of that single polygon. Both are at the same projection. I have tried clipping, ...
0
votes
0answers
28 views

Removing non-interactable “ghost” points

Non-professional here, working with ArcGIS 10.3 mapping soil data for an agricultural study and I have an issue with residual point features from a file I thought I removed. After I turn off all of ...
4
votes
1answer
283 views

How do you import .sbx, .dbf, .prj, .idx, and .sbn files in to ArcMap

I tried to open bathymetry map to the ArcMap but I just can open .shp file but I could not open other files accompanied with shp file because of the file type. How do I import .dbf, .prj, .sbn, ,sbx, ...
1
vote
1answer
80 views

QGIS Two people working on one shapefile at once?

Is it possible for two people to work on the same shapefile at the same time? Atm we split the data into two shapes and merge them after editing (version 2.12), but we are looking for a more ...
3
votes
1answer
51 views

How do I fix distortions when reprojecting cshapes world maps?

I am using the cshapes package in R as a source of historically accurate country borders. While the default WGS 84 maps plot fine, I would like to reproject the maps. This introduces some distortions ...
1
vote
0answers
31 views

Conversion from .shp to .dxf in one unified layer

I am trying to make a 3D .dxf out of a 2D shapefile for several hundred buildings. Doing this in one fell swoop is proving to be a roadblock. In ArcScene, I extruded building heights for maybe two ...
2
votes
1answer
52 views

How to write QGIS script to load Output file to Map Project with Desired Name?

Good news: the following line of code does produce the output as a shapefile with the name I want ("MyFile") and where I want it ("path"), path = "/Users/User1/Desktop/" ...
1
vote
1answer
44 views

Problem adding feature name to field in attribute table

I have a small script that should take the name of the file and add it to a newly created field in several shapefiles. import arcpy arcpy.env.workspace = r"c:\users\athom\desktop\timber\New4" ...
2
votes
0answers
28 views

UK Postcode and London destination

New to this site... I'm working with Postcode regions in the UK and was wondering if anyone know if there is a dataset which give you postcode region and the most likely station destination within ...
3
votes
1answer
88 views

Where can I find an administrative boundary shapefile for Monaco?

I am looking for an administrative boundary file (preferably in ESRI shapefile format) for the divisions of Monaco namely: Condamine Fontvieille Jardin Exotique La Rousse Larvotto Les Moneghetti ...
1
vote
1answer
53 views

Inserting spatial data into existing postgis geometry column from shape file based on ID

I have an existing postgresql database table "city_data" with Non-spatial data in the following format: City_ID as varchar, City_name as var_char, pop as int,.... I have enabled the postgis ...
0
votes
1answer
30 views

Ogr2ogr unable to export S57's Symbol to Shapefile

I am using ogr2ogr tool to convert the S57 files to shapefile. However in the resulted shapefile, I am unable to show the original icons from the S57. For example, the SOUNDG layer be represented by ...
0
votes
1answer
35 views

How I can show details a marker in openlayer through MapServer?

I have a problem but no solutions. Can you help me? I have a mapfile read from shapefile: MAP IMAGETYPE PNG EXTENT 779275 2222000 788430 2233835 SIZE 800 800 SHAPEPATH ...
1
vote
1answer
32 views

Combining 3 shapefiles indices to a single index in a single shapefile in ArcGIS 10.1

I have different polygon shapefiles, each having an index of accessibility within an administrative region ranging from 0 to 1 as an attribute. The suitability increases from 1 to 0. How can I ...
4
votes
1answer
97 views

Polygon inner rings/holes issue

I am working on a script to smooth polygons. Essentially it, separates the inner and outer rings/polygons and send the coordinates to a smoothing def/function. The "smoothed" coordinates are then ...
0
votes
2answers
49 views

Point feature plots in wrong place in QGIS?

I am using QGIS 2.12 on Mac OS X Yosemite 10.10.5. I have a single point with given latitude and longitude. I want to create a new vector layer (shapefile) which will plot one point on the map ...