"Convert" usually tags questions where a change of physical file format or of coordinate representation is needed.

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64
votes
20answers
55k views

How to convert between KML and Esri's shapefile (SHP) format?

My users are sending me point data that were digitized using GoogleEarth. How can I convert their KML to a shapefile?
22
votes
4answers
4k views

Bulk load multiple shapefiles into PostGIS

I've got over a hundred data layers in shapefile format that I want to upload into a PostGIS database. They are all in the same projection, but represent different data layers so they do not have the ...
21
votes
12answers
19k views

Converting Shapefiles to Text (ASCII) files? [duplicate]

How can I convert a shape file (GIS) to text? or, How can I extract the information in a shape file?
23
votes
10answers
52k views

How to convert MapInfo TAB and/or MIF to SHP using free tools or ArcGIS for Desktop core product?

How do I convert MapInfo TAB and/or MIF files to SHP using only free tools or ArcGIS itself? I've not had much luck trying to do this in the past and I don't want to have to shell out for the ArcGIS ...
8
votes
7answers
8k views

ogr2ogr convert all shapefiles in a directory

I have a directory with several shapefiles. How can convert all these shapefiles to MapInfo with ogr2ogr. I know how I can convert one file. And I can make a batch script writing a line for each file. ...
5
votes
7answers
6k views

How to georeference a dxf?

I have got myself a dxf which is built with units in the wrong scale. How do I upscale that in QGIS? Note it does open in QGIS, just in the wrong map units and location.
17
votes
9answers
10k views

How can I convert an excel file with x, y columns to a shapefile?

How can I convert an excel file with x, y columns to a point shapefile? There are some somewhat optional requirements in addition to the correct creation of a shapefile: Column types (as per ...
25
votes
9answers
6k views

Seeking options for Spatial ETL (Extract, Transform, Load)?

I am interested in the pro's and con's of various spatial ETL (extract, transform, load) tools. If you have used the items listed here (or add your own), please share your opinions and experiences. ...
19
votes
6answers
12k views

How to convert image of map into vector format?

What is the best way of converting a gif of a map into a vector format, such as a shapefile? The only relevant parts that I am interested in are the outline of the island so I realize some manual ...
12
votes
6answers
5k views

Convert GeoPDF to a vector format

I want to convert a GeoPDF that has vectors entity in it to a vector format and preserve the real coordinates of these vectors. The GeoPDF has been exported from ArcMap and has layers in it. I have ...
12
votes
3answers
20k views

How to convert a vector layer to raster?

In qgis in the raster menu there is an item "convert vector to raster". This behaves strangely - I do not understand how it is supposed to work. I can select a vector file, an attribute and an ...
19
votes
2answers
8k views

How can I convert data in the form of lat, lon, value into a raster file using R?

I have a data set of values over a km grid in the continental U.S. The columns are "latitude", "longitude", and "observation", e.g.: "lat" "lon" "yield" 25.567 -120.347 3.6 25.832 ...
4
votes
2answers
5k views

How to generate a DEM from a contour Shapefile?

I want to create a DEM from depth contours (shapefile) in QGIS. I've been trying to work out how to do this based on this previous question, notably from this link from that page, however I'm stuck, ...
6
votes
3answers
7k views

How to convert Distance, Azimuth, Dip to XYZ?

I have an excel spreadsheet with header and survey drill data. Header data contains hole ID, and location coordinates, and the survey data contains related downhole survey with Distance, Azimuth and ...
6
votes
1answer
5k views

How to Convert labels to DWG Cad file?

I have a new task where the client is asking for a .dwg file of layer labels. My first thought would be to create an annotation of the labels and then try and use the Export to CAD tool in ArcMap. ...
14
votes
3answers
5k views

Converting SimpleGeo Places GeoJSON file to shapefile?

SimpleGeo has recently made their "Places" data set freely available which is GREAT, because now we can use it for our own purposes, even offline. So I went about downloading the 2GB dataset, which ...
5
votes
3answers
2k views

Finding centrelines from polygons?

I was wondering if there is a way to create centre lines from polygons in QGIS? I have a polygon layer, but ideally need the centrelines as a separate file. Thanks, Alan
11
votes
5answers
9k views

Convert XY points to a line?

Someone mistakenly saved a GPS track as waypoints and then sent them along to me in a .csv file. They want a line back (shapefile). What's the simplest method to convert this to a line? Available ...
23
votes
1answer
5k views

Convert GeoJSON to TopoJSON

Question How do you convert GeoJSON data to TopoJSON? Why Topojson files are often smaller than geojson and the conversion allows you to incrementally simplify a dataset, if you wish.
28
votes
8answers
16k views

Open Source Tool capable of reading Esri File Geodatabase (.gdb)?

I have an ESRI File Geodatabase (.gdb) file that I would like to convert to shapefile (or any other non-proprietary format). Are there any Open Source tools to do so?
11
votes
5answers
2k views

How to build a geographic database of GPS logs?

On our aerial wildlife surveys we typically generate dozens of GPX files, and usually convert most of them into shapefiles for display in a GIS application. GPX files are a terrific way of keeping all ...
6
votes
4answers
3k views

How to convert geometry to WKT using ArcPy?

I would like to be able to convert a single feature (or potentially many features) in an ArcGIS layer into Well Known Text (WKT) format during a geoprocessing operation using Python and ArcPy (no ...
9
votes
6answers
7k views

Creating duplicate features based on many-to-one conversion of related table?

I need to create duplicate features (in this case parcels), using a related table to populate ID fields. In essence, I need to use a related table of parcel owners to create duplicate parcels, each ...
5
votes
2answers
2k views

Length of a degree: where do the terms in this formula come from?

Online calculators such as http://www.csgnetwork.com/degreelenllavcalc.html (view page source) use the below formulas to get meters per degree. I understand in general how distance per degree varies ...
15
votes
11answers
27k views

How to a convert LiDAR XYZ files to DEM / DSM?

Normally consultants (LiDAR survey) provide me with data to my specifications; already in ESRI GRID or ASCII GRID format. This way LiDAR data can be easily used with ArcGIS. This time I only have xyz ...
15
votes
2answers
7k views

How to Import SVG into GIS?

I have a PDF file, with a Map as a vector graphic. I want to get this into GIS. (I use ESRI's ArcGIS, but any FOSS solution is also fine). I know that it is not possible to directly get the PDF into ...
3
votes
3answers
1k views

Vertical Datum Conversion Utilities

I have some data (points and rasters) that I would like to be able to convert to and from several vertical datums, including MLLW in coastal Florida. I would appreciate it if people could provide some ...
2
votes
1answer
473 views

Convert GeoPDF with GDAL

I'm attempting to convert a USGS US Topo GeoPDF in Windows. I'm using GDAL 1.11.1. My initial attempts were with this Python script, which automates the process by feeding a command to the Windows ...
0
votes
2answers
4k views

convert geotiff to simple xyz elevation file?

I have looked everywhere and can not find a tool to convert a geotiff file to a simple ascii elevation file... did I miss something? thanks for any pointers!
10
votes
10answers
8k views

Batch convert lat longs to UTM?

I've got a .csv file that contains a long list of latitude and longitude points. Is there an efficient way to batch convert the list into a projected UTM coordinate system? Thanks.
9
votes
0answers
3k views

Open source alternative to FME from Safe Software for Spatial ETL? [duplicate]

Just wondering if there is any open source solution which comes close to safe FME? I would like to integrate it into my workflow, but it´s just another few thousand which my employer has to give out ...
3
votes
1answer
162 views

Help with “projected XY to screen xy” conversion algorithm?

I'm trying to convert coordinates from any given coordinate system (be they the coordinates of a graph figure or a map, meaning they can span across both negative and positive values across any of the ...
1
vote
2answers
159 views

Plot Canadian (Alberta Province) township, range, and section data on Google Maps

We are working on a project where we need to plot some part of Canada (Alberta) over Google Maps. We can plot maps on Google with coordinates (lat/long) or geometry values. But our client provided us ...
8
votes
3answers
6k views

How to convert projected coordinates to lat/lon using Python?

I assume this is a basic question but I can't seem to find or recognize the solution. This site returns Point: X: -11705274.6374 Y: 4826473.6922 when you searching with the first key value of 000090 ...
6
votes
5answers
10k views

Batch convert GeoTIFF's to KMZ files

I have about 600 GeoTIFF map files, each about 140 mb in size that I'd like to convert to KMZ files so people can download them and use them with Garmin GPS units, Google Earth, etc. Anyone know an ...
11
votes
3answers
4k views

Exporting arcgis features with attachments, for outside ArcGIS

Arcgis 10 features the new ability to add attachments to individual features to feature classes stored in a geodatabase. One use of this would be to add multiple pictures to a specific location, fire ...
5
votes
3answers
4k views

How to create lines from points pair coordinates with arcpy?

I've got some points pair coordinates (start and end points) which I have to transform into lines. Until now, I used an append of both the coordinates in a pippo.Point(), a pippo.CalculateGeometry() ...
13
votes
3answers
5k views

Lon/lat transformation

First I should clarify I don't have previous experience with the field, so I don't know the technical terminology. My question is as follows: I have two weather datasets: The first one has the ...
7
votes
2answers
1k views

How to convert a Visio diagram to a GIS layer

I have a office floorplan that is a standard Visio drawing file (*.VSD) that I would like to convert into a GIS feature class (shapefile, GDB, PostGIS, or any other applicable format, it doesn't ...
5
votes
5answers
11k views

Trouble when georeferencing CAD files in ArcMap

I've definitely got at least a couple of grey hairs while trying to convert some dwg. files to shapefiles. I've seen that this subject has been disscused a lot, but hope someone will have the ...
4
votes
1answer
4k views

How to convert WMS to SHP?

I'm looking for tool that will be convert WMS to vector layer. Are they ready tool?(for example in python)
4
votes
4answers
7k views

Tool for converting .shp file to .tab file?

I am searching for any free tool which can convert ShapeFile (.shp) to MapInfo (.tab) file.
3
votes
3answers
1k views

QGIS - Convert Vector points to GPS waypoints and route

I'm new here. I have a shape file with a series of points (around 300) using British National Grid. I need to put them on my Garmin Etrex 10 as waypoints. Can someone tell me how to convert this ...
3
votes
2answers
906 views

How to read MapInfo .tab files in ArcPy?

I want to use arcpy (the ESRI install of python 2.65) to analyse tab files...can this be done directly or do I need to convert them to shp files...if so would it be possible to do something like ...
2
votes
1answer
5k views

How to convert a shapefile to WKT?

I'm trying to convert a shapefile into the simple Well Known Text (WKT) format in the example below (from http://en.wikipedia.org/wiki/Well-known_text). MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)), ...
2
votes
1answer
2k views

Shapefile to MSSQL with ogr2ogr fails to make connection

I am using ogr2ogr from OSGeo4W on my Windows 7 box to import a shapefile into a SQL Server database on one of my servers. I was able to successfully complete the conversion using shp2sqlserver, but I ...
2
votes
1answer
532 views

Convert point XY to page units XY using arcpy?

I am using arcpy to export PDFs from my ArcGIS Server application. I want to move a TextElement in my layout view to the centroid of a selected feature. I can get the centroid of the feature, but ...
1
vote
4answers
791 views

Batch convert xy to shapefile

I have about 300,000 CSV files which I want to convert to shapefiles, but ArcGIS and QGIS can only convert one CSV at a time. Are there any ways to batch convert my CSVfiles? x y z1 z2 z3 z4 1 2 3 ...
4
votes
1answer
183 views

How to transform a set of street-segments into city-blocks, with PostGIS2?

Theoretically is possible to obtain the polygons of city blocks (urban blocks) from streets, when streets are represented by street axis (LineStrings). The urban blocks are bounded by streets, so ...
4
votes
3answers
3k views

GDAL_translate: converting ESRI GRID to Geotiff in batch

The Challenge: To batch convert 1000 rasters in ESRI Grid binary to Geotiff using either using a batch file or Python 2.7 without ArcGIS/Arcpy module. The Tools: Win7Pro, GDAL 1.9.2 (via OSGeo4W), ...