Questions tagged [shapefile]
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.
0
votes
0answers
8 views
Reprojecting shapefile using DotSpatial gives unexpected lat/long coordinates?
I need to take an uploaded polygon shapefile and extract some information from it, including the lat/long positions of the centroids of the features.
Using DotSpatial I attempt to Reproject the ...
0
votes
1answer
14 views
Import shapefile as table in MS SQL Server (QGIS 3)?
I have made a successful connection with MS SQL Server in QGIS 3. I can see all of the tables. I know with QGIS 2 and PostgreSQL you had to use DB Manager to import a shapefile as a table. Well, DB ...
0
votes
0answers
8 views
shp2pgsql creates 1 dimensional shapes
I use shp2pgsql to import an .shp ESRI shape file into PostgreSQL database. I use brew installed shp2pgsql. I used this command first:
shp2pgsql -I -s 4326 /path/to/shape_file.shp public.os_gb | psql ...
-1
votes
0answers
25 views
Creating shapefile from coordinates? [on hold]
I'm creating a web page where person can click on map and create series of points, I want to know how can I take those co-ordinates and export them as a shapefile.
-1
votes
0answers
24 views
Where can I find London boundary's shapefile?
Does anyone know where I can get the shapefile of London, just London, without the wards/boroughs/LSOAs? I would just like the outline of London.
0
votes
0answers
19 views
Union polygons, retain attribute tables and write the polygon to a new .shp in R [on hold]
I have drawn shapefiles from bathymetry maps that contain depths within a contour interval (3-10m, 10-20m, 20-30m etc..) I am trying to take these shapefiles and union them into one shapefile and ...
1
vote
0answers
14 views
How to output file with all overlaps between two Shapefiles - Neighborhood/Zip Codes [on hold]
I have a pretty specific problem I would like help with.
I have two shapefiles:
neighborhoods from https://www.zillow.com/howto/api/neighborhood-boundaries.htm
zip codes from the census bureau: ...
0
votes
1answer
19 views
How can I write a zipped shapefile with ogr2ogr and /vsizip/?
After reading a bit of GDAL Virtual File Systems docs, I am trying to write a zipped Shapefile using this gdal command involving the use of /vsizip/:
ogr2ogr -f "ESRI Shapefile" /vsizip/test.zip\test....
0
votes
1answer
31 views
Drawing a marker on a shapefile with the given latitude and longitude?
I am using shapefiles to draw a custom map. They were created successfully with the help of ArcGIS Desktop.
Now I need to draw a marker on shapefile based on an existing tuple of lat, lng.
How can I ...
5
votes
2answers
384 views
How can a missing .shx file be created?
I am using ArcGIS to view one shape file.
Only a select number of features are being displayed. The same number are showing in the attribute table even though the database file (.dbf) has a complete ...
0
votes
1answer
23 views
writeOGR error: length(dsn) == 1L is not TRUE
I'm running a for loop R that results in a shapefile being written with each iteration. The for loop runs successfully once, with a shapefile being written out, but then on the second iteration I get ...
2
votes
2answers
36 views
QGIS3 Shape Digitizing Circles is Drawing Improperly
I'm trying to draw a circle in QGIS 3 with the shape digitizing toolbar. I've tried several of the "add circle" options and they all look normal while drawing, but once I click to finish the shape it ...
0
votes
0answers
16 views
Importing shapefile into AutoCAD Map 3D
I would like to ask about the import of shapefiles where the objects are sorted on the basis of data. The problem here is that I want to sort the objects on the basis of two different data fields with ...
1
vote
1answer
42 views
QGIS time manager - shapefile in edit mode?
In QGIS 2.18, shapefiles are not editable when loaded in the timeManager.
Is there a workaround?
Or do you know if this is available in more recent version?
The timestamps in the shapefile are set ...
0
votes
2answers
24 views
Multipatch to polygon/polyline conversion in ArcGIS Pro?
I have a file captured from Bentley software already converted to .shp format. I would like to have polygon or polyline to be able to simply edit it but I don't know how to convert Multipatch to ...
-1
votes
0answers
12 views
Seeking Quebec 1992 election ridings shapefile?
Does anyone know where I can get shapefiles for Quebec's electoral boundaries, in 1992?
The following site only has data going back to 2012:
https://www.electionsquebec.qc.ca/english/provincial/...
2
votes
1answer
47 views
Getting list of shapes on border of map using ArcMap
I have the following map of a state with its precincts inside of it:
Is there any way that I can get a list of the precincts that are on the border of the state? I have been looking through the ...
1
vote
1answer
37 views
Snapping two line shapefiles according to attribute field value using ArcGIS Desktop?
I have a two line shapefiles (Trace.shp and Snap.shp). There is a GIS_ID field in both files. Now I want to snap "Snap.shp" to "Trace.shp" according to GIS_ID value. I have tried to use Snap tool for ...
-2
votes
0answers
17 views
When trying to export a corrected file error Unable to transform GNSS coordinates into the chosen coordinate system [closed]
1 input file(s) read.
413 position(s) read.
A total of 18 feature(s) read or created.
18 point feature(s) read.
Unable to transform GNSS coordinates into the chosen coordinate system.
0
votes
0answers
18 views
How to color-code a road by some attribute (roughness, surface material, pothole density) [closed]
I have a two stage application and would like some guidance.
First, I want to create a shapefile of a "ribbon" that is color-coded by some attribute (such as roughness, surface material, pothole ...
0
votes
0answers
96 views
Seeking alternative shapefile import in Google Earth Engine code after Fusion Table Shutdown? [on hold]
An email from google says that Fusion Tables will be shutdown in December 2019. As a result this will impact several projects of mine in which I import fusion tables as feature collections which ...
0
votes
0answers
29 views
Edit geometries in python: which tool? [closed]
I was asked to create a python script to do a "simple" cut-copy-paste operation on shapefile geometries. I say simple because it takes 3 minutes to do it by manually editing features in Qgis. But it ...
1
vote
2answers
29 views
Selecting/tracing part of line feature using QGIS?
I have a shapefile which comprises a number of lines, each representing a bus route. I'm wanting to create a new bus route which is the same as an existing line to a certain point, but then branches ...
3
votes
1answer
48 views
Importing from CSV and changing projection using ArcPy?
I'm attempting to convert CSV files to a group of shapefiles, then re-project them to a different coordinate system.
The first conversion works, but I'm having issues with the projection piece.
...
-3
votes
0answers
27 views
Converting/exporting more than 60k shapefiles to CSV files? [duplicate]
I am using QGIS.
Is there any simple method to convert/export more than 60k shapefiles to CSV files?
0
votes
1answer
27 views
Google Earth Engine uploading table asset meets "invalid shapefile supporting file“
I am trying to upload a series of data coordinates to Google Earth Engine.
First, I used ArcGIS and converted the Excel data to shapefile and I got eight files.
However, when I am trying to upload ...
0
votes
1answer
41 views
Save/loading shapefiles with SF in R: no simple features geometry column present [closed]
I have this code:
library('sf')
#init data
xes = c(-122.133533701866, -122.141590665524, -122.382782560179, -122.302227764504, -122.347524548303)
yes = c(47.617342005802, 47.6102707417054, 47....
0
votes
1answer
22 views
batch merge error: Error in match.arg(method) : 'arg' must be of length 1
I am attempting to read in a series of polygon shapefiles from a directory and batch merge them into a single shapefile. They all have the exact same field names. I am using this code:
all_data <-...
0
votes
0answers
19 views
Python - Merge shapefile polygons based on criteria
I have a shapefile with thousands of polygons and would like to merge (join) adjacent polygons based on a threshold between attributes. I need to use python because I'm not allowed to use ArcGIS.
e.g....
0
votes
0answers
55 views
Failing to read shapefiles in folder using ArcPy?
I want to use create random point tool on list of shapefiles, but keep failing to list the shape files. My code stops at line (print fcList); and gives me "None" as output.
Is it because of the ...
0
votes
1answer
24 views
Importing shapefile into Mapit
Unable to import an ESRI generated shapefile (just a simple polygon layer) into the Android app. MapIT does not recognize the file(s) in the upload screen, I can not select nor view it. I have ...
0
votes
1answer
19 views
Capturing data in clip from smaller extent
What I am trying to perform is a clip what captures the shoreline on a town in CT. I have the town boundary and I can use the buffer to extrude the polygon but I have wondering if there was an easier ...
1
vote
0answers
34 views
Exporting raster with map context using ArcPy?
I am a user of ArcGIS Pro. I am trying to convert a polygon shapefile into a raster dataset, then export a raster dataset to a PNG format via arcpy.RasterToOtherFormat_conversion.
From .shp to .tif
...
2
votes
0answers
26 views
Create custom projection for Shapefile, given specific target coordinates [duplicate]
I have a somewhat odd situtaion. A client has provided me with a Shapefile that has no projection information, along with an image of the map that it corresponds to. I have run some coordinates ...
0
votes
1answer
20 views
Shapefiles - ability to toggle editing and filtering
I have a shapefile from a county HER which I have successfully loaded. I have catagorised the point so depending on type they show a different symbol. I can filter those points in order to show ...
0
votes
0answers
9 views
Changing a shapefile to aoi file in ERDAS, but somethign is weird about the shapefile
I am trying to change a shapefile to an aoi file in ERDAS imagine, however, the shapefile I have is not the same as the ones I have seen in tutorials on how to do this. The shapefiles in tutorials are ...
0
votes
1answer
48 views
Converting RTK Elevation Data to DEM?
I have a shapefile that contains elevation data. I want to eventually convert this to a slope layer. I'm assuming I have to convert to a raster, then a DEM, then slope.
Is that correct?
If so, ...
1
vote
1answer
34 views
Polygon geometry suddenly disappeared/deleted from shapefile in QGIS
I was editing a polygon shapefile in QGIS (3.0.1) today when suddenly 966 out of 5382 polygons disappeared from the map. I had been changing attribute information in the table, cutting polygons, etc ...
0
votes
1answer
24 views
Raster to shapefile results in polygons with no difference in values
I am trying to convert a 32bit floating point raster in tiff format to a vector .shp file in ArcMap. In particular, I have been attempting to convert my continuous data set found in the TIFF extension ...
0
votes
1answer
42 views
Existing C++ libraries that convert ESRI shapefile to DXF/DWG [closed]
Is there any C++ library that can convert ESRI Shapefile to DXF/DWG file?
I seek a link/or sample on how this can be done with the said C++ library.
I'm aware that one can do this with ArcGIS ...
0
votes
0answers
29 views
Shapefile conversion tool for WGS84 to TN state plane
I collect location points using a Magellan Mobile Mapper. A bit dated but that's what I got, in WGS 84 shapefile format.
I typically import the shapefile into ArcMap and create soil survey maps. I ...
0
votes
0answers
22 views
Fishnet programmed in python does not display correctly in ArcMap but displayed correctly in QGIS
I programmed a fishnet in python to use as a reference map for georeferencing. I am facing the following issue:
The fishnet is not displayed correctly in ArcMap 10.5.1. The fishnet has parameters lat-...
0
votes
2answers
35 views
Providing multiple shapefiles belonging together in single file with predefined symbology in ArcGIS Desktop?
There are multiple shapefiles which belong together and should be provided in a single file with predefined symbology (see figure). Is there an option to do so? Currently, the shapefiles are bundled ...
-1
votes
1answer
48 views
Shapefile DBF Editing in Stata for ArcMap?
I am trying to edit shapefile in ArcMap.
How I can keep or clean some information from shapefile in ArcMap?
In my shapefile, I have information about street type such as road, route, highway, ...
0
votes
0answers
23 views
OGR SetAttributeFilter does not let datasource to update
I am trying to update an attribute value for a certain feature in a shapefile. To filter out that feature, I use SetAttributeFilter. This returns the feature I want, and SetFeature also works as ...
0
votes
0answers
34 views
Clipping larger vector layer to smaller layer, QGIS 2.18.25?
I'm clipping two vector layers, and I want the clipped layer to have the attributes of the smaller layer/ smaller spatial area. So, when using the clipping tool, my input is the small shapefile (80 KB)...
2
votes
3answers
196 views
How to Identify Coordinate System (CRS) from projection file using Python
I am working on many shapefiles (their corresponding projection files are also presented).
Every shapefile has a different Coordinate System, so it becomes difficult to plot these in a generic manner....
0
votes
0answers
21 views
Converting 100m Rasterdata to Shapefile using ArcGIS Desktop?
I've got 100m raster data in a database, looking like the example below.
I want to convert it to a shapefile.
When I usually import data, it have explicit X and Y coordinate columns.
Is there any ...
2
votes
1answer
43 views
dbf to shp within BASH (ogr2ogr would be ideal)
I have a CSV with many points and attributes that I'm trying to convert into a shapefile but I'm having no luck. I have installed gdal-bin and can use my terminal environment to create a shapefile ...
-1
votes
0answers
30 views
Determine which shapefile polygon each observation of a separate dataframe is located in (R) [closed]
I am having trouble matching coordinate points in a data frame to the corresponding polygon zones in a shapefile. I have checked other threads of those with the same issue and still can't seem to find ...
