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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1answer
205 views

Select by attributes within the fiona Python module

Is it possible to select polygons from a shapefile based upon their attributes using the Fiona Python module? I can't seem to find anything in the docs, but it seems like a strange thing not to be ...
1
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1answer
586 views

Problem opening shape file in qgis

I am having a problem opening a shape file using QGIS using 'add vector later'. This is the error message i am getting: /Users/Conrad/AmerindianLands 2/Amerindian_Land_Karasabai.shp is not a valid or ...
0
votes
1answer
725 views

How to add Shapefile to map?

How to Add Shapefile to map in ArcGIS Silverlight application runtime ? I published the shapefile feature as map service on arcgis server and consumed it my SL Application through the service Url ...
1
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1answer
242 views

Polyline (shp) layer not displaying correctly in QGIS

I'm a new QGIS user. I'm trying to convert a polyline vector layer to polygon. I tried to it in ArcMap 10.1 but it misses a lot of polygons. So, I'm attempting to this in QGIS running the process ...
0
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2answers
197 views

Editing blank feature class in ArcMap

I'll try to describe my problem the best I can. I'm very new to ArcGIS. I have a jpeg showing an old map of NYC zones. I was able to georeference this image with a shapefile of NYC blocks. I wish to ...
2
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0answers
64 views

PostGIS does not export shortest path to Shapefile

I am trying to draw a bunch of lines overlaying the globe map in a WGS84 projection. To this effect I have created a PostGIS DB with a table that has one column containing linestring data. My problem ...
3
votes
3answers
1k views

MODIS image reprojection/ change coordinate system in ArcGIS 9.3

I have downloaded Utah state shapefile in NAD_1983_UTM_Zone_12N projection and also downloaded the MODIS image of the area (MOD09Q1) in .hdf format which has sinusoidal projection. the .hdf format ...
3
votes
0answers
279 views

Why does the QgsVectorFileWriter have probelms creating vector files? [closed]

I am using QGis 2.0.1 and have tried to create a new GIS feature file (SQLite, Spatialite, and Shapefile) of a subset of the data. I am then saving a copy of the style of this layer and applying it to ...
2
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0answers
104 views

Global height data as polygons — Natural Earth doesn't have it?

I love the bathymetry data from Natural Earth. I've been looking for the last few days for the same basic data but for land. I'm trying to find general elevation shapefiles, as polygons. I don't need ...
0
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0answers
46 views

Why can't I save a line shapefile?

I'm working with qgis v. 2.0.1. I have some data points and I just wanted to create a new shapefile with line geometry. In the new vectorlayer-window, I added some attributes (approx. 10) and klicked ...
3
votes
2answers
49 views

How to control how points are displayed across different programs

I'm completely new to GIS, but I'm trying to control how Points are displayed (shape, color, size, etc) across different programs (ArcGis, qGis, etc). Is there a way to control the rendering of ...
2
votes
1answer
147 views

Update postgres/postgis point data attribute from another enclosed polygon shapefile in QGIS

I have a placename point table in postgis with 'district' column. a districts polygon shapefile with district name in 'Name' column. See the image below. I would like to update the 'district' ...
0
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1answer
61 views

Selection/Deletion of all smaller polygon/s in a SHP - Python solution?

ArcMap 10.2 user, with Spatial Analyst only. No ArcServer or of sort. I have abt 500+ polygon shapefiles, each containing 2 or more polygons. All of them has a NAME column and the rest of the ...
1
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0answers
130 views

Extract Polygon Data for Each Neighborhood from GIS Shape File

I have a dataset that has four types of files with the following file extensions - .DBF,.PRJ,SHP,SHX My goal is to get all the polygon coordinates for each neighborhood and draw the boundary outline ...
1
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0answers
129 views

Simplifying TopoJSON causes leak of Natural Earth in d3

I'm working with topoJSON and D3 to display Natural Earth data on a globe. Obviously, we need to simplify our geometries while still keeping borders consistent. We've created a script as based on ...
3
votes
1answer
531 views

How to create Relationship Classes successfully

I'm new to ArcGis and I'm making the first steps at this time. At the moment I've two different shape files. The first shape file represents streets on a map with some detailed information in the ...
3
votes
4answers
710 views

How to merge many shape with the same name in different folders?

I've many (hundreds) shape (3D points and 3D polygons) that have the same name, saved in different folders; and I've tried to merge them using batch with Merge tool in ArcGIS... but inexplicably ...
3
votes
3answers
132 views

Preparations for a transition to ArcSDE [closed]

So I'm a GIS Intern for a city government, we are preparing to purchase ArcSDE and implement it to our current GIS setup. I'm curious as to what should be done before it is purchased. Our GIS consists ...
-1
votes
1answer
309 views

How to parse data from KML to shapefile with ArcGIS ModelBuilder?

In ModelBuilder of ArcGIS 10.2 does there exist a method or routine for parsing data from a KML file and "print" this data in a shapefile or convert this data a to shapefile?
14
votes
7answers
17k views

Where can I find Canadian postal code geometries?

Where can I find the shapefiles for Canadian postal codes?
2
votes
5answers
5k views

How to export labels to DXF file?

Is it possible to export labels based on Shapefile attributes into a DXF file? I use Quantum gis in Version 1.7.4. I've been reading a CSV file and view it as a Shape Layer. With the help of ...
6
votes
1answer
5k views

R : convert a spatial polygon objet to spatial polygon data frame

My goal is to modify an existing shapefile by merging certain polygons. After importing the shapefile and using the UnionSpatialPolygons command, I get the polygon outline that I want. However, this ...
2
votes
3answers
612 views

ShapeFile to GeoJson conversion

I am working with OpenLayers. I want to convert ShapeFile into GeoJson format and send it to browser to show with OpenLayers. But problem is when the size of my shape file is so big like 60MB or ...
0
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0answers
34 views

GPS Coordinate Handling

I have a text file with consecutive coordinates of gps data for ongoing and incoming route(on Same road). i want to convert them in line format. how can i normalise those extra coordinate so that i ...
1
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1answer
93 views

How to document field properties of attribute in shapefile?

I would like to document within ArcGIS how the values for specific shapefile attribute fields were derived or obtained. Is it possible to input and export this information as a report with ArcGIS 10? ...
4
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3answers
767 views

Best choice for building static maps: PostGIS, SpatiaLite or Shapefile?

I usually build static topographic maps, which are mostly printed. I'm often using OSM and rasterfiles (mainly different DEMs). The areas I'm mapping seldom exceeds 20.000 km². I'm using exclusively ...
1
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1answer
92 views

QGIS combine Vectorlayer and Rasterlayer to one shapefile

I have to create some Thematic Maps, especially Choropleth Maps on Matlab. Therefore i've found a shapefile which I can use, but need to draw some lines there. I've imported my shapefile as a Vector ...
2
votes
1answer
368 views

Converting JSON/GeoJSON files to Shapefiles

I have a quick question please about converting JSON/GeoJSON files. I'm trying to convert some JSON files into something I know how to work with (shapefile, R objects or PostGIS). I'm afraid I have ...
-2
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1answer
68 views

Why is it important to ensure that the shapefiles have a spatial reference system when created?

Why is it important to ensure that shapefiles have a spatial reference system when created?
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1answer
118 views

Can a shapefile store several geometry types? [duplicate]

Can a shapefile store several geometry types? Yes or no? Why or why not?
1
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3answers
243 views

How do I calculate the new shapefile areas after clipping?

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
votes
1answer
176 views

Cut polylines at intersections in QGIS (or how many km road for each country)

I want to measure how many km a road stand on each country it intersect (i.e. how many km of the european road "E45" stand on Italy, Austria, Germany, and so on). I have a polyline-shapefile with the ...
5
votes
2answers
1k views

How to access Shapefile metadata using OGR?

I'm trying to use ogrinfo to get some details on a shapefile I downloaded. Currently, the only way I know how to do this is to load it into QGIS and manually click around to find any information on ...
1
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2answers
98 views

Copying shapefiles within windows explorer (or - extension) [closed]

Is there a user-friendly way to copy shapefiles to a different file location? ArcCatalog is not fast enough for this purpose, creating new map and navigating to this new workspace takes a lot of ...
2
votes
0answers
78 views

Identify different networks inside a line shapefile

I'm dealing with a quite big line shapefile containing road tracks. The roads are connected to each other, creating distinct networks. These networks are independent and they are not connected to each ...
0
votes
0answers
689 views

How to convert .shp to .dgn (V8i) including attributes AND geometry?

looking for open source solution using GDAL / OGR solution looks more promising , even before someone recommended me but not not sure on how to use then QGIS 2.0.1 Dufour SHP file Left / Right ...
0
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0answers
43 views

Connection refused for upload shapefile database

I'm a student and I'm approaching to QGIS. I use QGIS 2.0.1 Dufour. I can't have no more axcess to the university shapefile data base. I fill the space for the login and for the password, but the ...
11
votes
3answers
18k views

How to convert .shp to .csv including attributes AND geometry?

I have a .shp file with 60k+ entries, all of which are polygons with corresponding attributes (acreage totals, landowner names, tax ID #s, etc.). What I ultimately need is a .csv file with all of ...
34
votes
7answers
13k views

Whether to use File Geodatabase (*.gdb), Personal Geodatabase (*.mdb) or shapefiles?

I am a bit confused on the topic of geodatabases. Previously, I have used geodatabases as an easy way to keep all files together rather than having dozens of shapefiles all over the place. And it's ...
7
votes
3answers
7k views

How to include variable in where clause of arcpy.Select_analysis?

I am trying to loop through a shapefile, selecting each feature in turn and copying it to a temporary shapefile to by included in a union analysis. I'm using a cursor to find the ID name for each ...
2
votes
1answer
662 views

Problem creating point shapefiles programmatically using python in QGIS 2.2

I am trying to create a point shapefile in the memory buffer (for a temporary label) and then zoom to the extents on this buffer. The working (in version 2.1) test code for this is: def ...
1
vote
1answer
121 views

When I join a table to a shapefile and then export it the titles of the columns are transformed to data1, data2

I'm using QGIS 2.0.1 The table is in an excel format that i import through "add vector" and the shapefile is a polygone I join the attributes by right clicking the polygone-->properties-->join Then ...
11
votes
5answers
3k views

How can I update ogr2ogr to include the PostgreSQL driver?

I'm trying to use ogr2ogr to upload a shapefile to a remote PostGres installation. When I ran this command: celenius:~ celenius$ ogr2ogr -f PostgreSQL PG:"host=255.34.00.00 user=postgres dbname=mydb ...
12
votes
2answers
7k views

How can I get a shapefile from a postgis query?

My data is in a PostGIS database. I would like to generate a shapefile from a query. How can I do that?
1
vote
1answer
103 views

Merging more than two shapefiles in QGIS

I want to merge 9 shapefiles (all polygons) into one file. The problem is, when I try to merge more than two files at once, I seem to loose attributes on the way? Is there any other way of merging ...
0
votes
1answer
773 views

Converting .dxf to shapefile

I have a .dxf file to convert to .shp. Using ArcMap I've added the .dxf and tried exporting to .shp (various types, polyline, point, polygon) and also tried exporting to a gdb. For the most part it ...
0
votes
1answer
105 views

Can QGIS report/calculate areas/perimeters of individual polygon components within multipart shapefile?

Can QGIS report/calculate the areas/perimeters of individual polygon components within a multipart shapefile without using the "explode" vector tool to generate a new file? using QGIS 2.2.0 on ...
0
votes
1answer
83 views

Error in performing transect in ambur R?

I'm trying to filter a transect, window size is 5 and filter individual baselines is set to 0. I select the transect shapefile, then the inner baseline shapefile and it gives me this error. Error in ...
5
votes
5answers
7k views

Why can't I export XY data to a shapefile?

I have added a table from Access to ArcMap, and then used 'Display XY data' to plot points. When I then try to export the Events to a shapefile I get an error message telling me: "Error exporting ...
1
vote
1answer
566 views

Convert from eastings and northings to latitude and longitude without ArcGIS

I am not a GIS user, but I was given some shapefiles to work with. I do not have ArcGIS or any other GIS tool, but I do have Matlab with the mapping toolbox and R. From what I can tell, the data is ...