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

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27
votes
4answers
5k 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 ...
25
votes
12answers
30k 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?
78
votes
20answers
73k 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?
28
votes
12answers
69k views

Converting 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 ...
19
votes
9answers
13k 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 Excel'...
28
votes
10answers
9k 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. ...
13
votes
7answers
11k 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. ...
15
votes
4answers
32k 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 ...
14
votes
6answers
7k views

Converting GeoPDF to vector format like CAD or shapefile?

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 ...
9
votes
6answers
9k 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.
3
votes
5answers
8k views

How to convert LAS to GRID/Raster for ArcGIS input?

I was wondering if there is an option to convert LAS (LIDAR data) to raster or GRID format that ArcGIS could read it.
26
votes
2answers
17k 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 -120....
10
votes
4answers
4k views

Finding centrelines from polygons in QGIS?

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.
21
votes
6answers
18k 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 ...
16
votes
4answers
15k 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 ...
9
votes
4answers
6k 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 non-...
11
votes
5answers
3k 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 ...
7
votes
3answers
9k 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, ...
11
votes
5answers
11k 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 ...
15
votes
3answers
6k 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 ...
8
votes
2answers
10k 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 ...
17
votes
2answers
10k 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 ...
9
votes
6answers
10k 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
5k 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 ...
30
votes
1answer
7k 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.
30
votes
9answers
22k 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?
7
votes
5answers
13k 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 ...
7
votes
3answers
7k 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() ...
0
votes
2answers
8k 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!
7
votes
1answer
10k 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. ...
4
votes
3answers
1k views

How can I convert a set of ShapeFiles to an OSM file?

How can I convert a set of ShapeFiles to an OSM file?
16
votes
3answers
7k 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 ...
11
votes
2answers
27k views

Shapefile attributes to Autocad Annotation

How can I export the attribute information for the shapefile/feature class to Autocad Annotation/Text. I'm able to export the shapefile to autocad but unable to get the attributes in annotation. Need ...
11
votes
3answers
6k views

Exporting features with attachments for use 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 ...
4
votes
1answer
699 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 that'...
8
votes
2answers
250 views

Convert a geotiff web-mercator into an azimuthal equidistant projection

I have a geo-referenced tiff file, in the web-mercator projection; and I need it converted to an azimuthal equidistant projection. I'm new to GIS and can't figure out how to do this. I'm open to ...
4
votes
1answer
255 views

Converting LAS 1.4 to 1.2

LIDAR files were released for major part of Slovenia few months back in zlas format. Decompressed LAS format is 1.4 version. I have tried many options how to generate DEMs and had some success in ...
3
votes
1answer
1k 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 ...
11
votes
10answers
11k 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
3answers
759 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 ...
3
votes
1answer
329 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 ...
9
votes
4answers
7k views

Transforming from DWG/DXF to GIS?

I've got tons of DWG/DXF files with information (in several layers) dealing with: Contour lines and elevation (lines) positions of antennas (points) protection areas (polygons) administrative ...
15
votes
10answers
32k views

Converting XYZ files (with regularly spaced xy) to ESRI GRID format?

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 ...
7
votes
5answers
1k views

From .shp to .kml to .shp Without Losing Attributes

I've converted a shapefile with attributes to a .kml for a client. The .kml and attributes were then edited within google earth. I received the updated .kml and now I need to get it back to .shp. ...
7
votes
2answers
2k 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 ...
6
votes
5answers
17k 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
2answers
8k 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)), (...
11
votes
4answers
9k views

Character encoding support in geodatabases and shapefiles

I've got several geodatabases that include feature classes with Greek letters in a lot of the attributes. When I try exporting a feature class as a shapefile from ArcCatalog, the attributes are ...
6
votes
2answers
24k views

Convert X,Y State Plane coordinates to decimal degrees

I have 1000's of data point I need to convert from North Central Texas 4202 into Lat/Long decimal degrees. Can someone give me a conversion equation so I can quickly convert using excel? I have only ...