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

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1answer
371 views

How to convert gps receiver native format to google lat long or XY format

I have received some GPS co-ordinates in the following format like - "17267690N 078279340E".. How to convert the co-ordinates to show it on Google map.
3
votes
1answer
256 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
1answer
969 views

Where can I find a good Mbtiles to png tiles converter?

I'm trying to create a slippy map and I need to obtain png tiles. I have exported a .mbtiles file from TileMill and I tried several python scripts to convert this file into png tiles but I always end ...
1
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1answer
212 views

How to convert geospatial data with a custom SRS into ESRI Shapefiles?

I want to convert geospatial data stored in a .csv file into GeoJSON or ESRI Shapefiles. The problem is that the coordinate reference system is not in the database of EPSG codes. The originator ...
4
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2answers
369 views

Is it a bad idea to convert a File Geodatabase table to a dictionary?

First, what am I trying to do? I am building a Python script that should be called from an ArcMap 10.0 toolbox. This scripts uses (among other inputs) data contained in huge gdb tables. It processes ...
0
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1answer
226 views

How do I convert coordinates to raster (bsq, bil) lookup?

I have a .bil file, which has interleave = bsq in the hdr file. I'm having trouble finding any insight into how I would essentially do a lookup on the file. I have no problem reading a specific ...
1
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1answer
278 views

autocad-map of real estates with own coordinate system and information to be converted to use it in QGIS

I have a question regarding CAD and QGIS, but unfortunately I don't have a clue of CAD. Here it goes: Real estates data has been mapped. There are several reference points surrounding the area. So ...
2
votes
1answer
2k views

Is there a way to convert GeoTIFF to DEM?

Simple enough question. The NASA Aster data comes in GeoTIFF format, but the tool I'm using (Sketchup) only accepts DEM. Is there a way to convert? I did a lot of searching, and only found the ...
7
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1answer
1k views

Bringing GIS data into Minecraft

A little off the beaten path...: Denmark has built a 1m:1block Minecraft World using real GIS data. Here's the home page, in Danish: http://gst.dk/emner/frie-data/minecraft/, and an ArsTechnica ...
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2answers
735 views

Export to CAD - preparing the DWG seed file

I'm preparing a seed file in order to export to CAD and maintain all the attributes at all fileds. after creating the block definition I've export to CAD (Right click) using the seed file I made ...
3
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1answer
3k views

How do I convert a set of latitude/longitude coordinates with timestamps to a GPX tracklog?

Converting tracks from a GPX track to a CSV table or some other format is relatively easy, but I'm looking to go the other way. I have a table of point locations logged with a handheld GPS, with ...
0
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1answer
353 views

Filter geojson or shapefiles

I'm trying to create a geojson file with a few shapes of roads from OSM. Now, I've been able to get shapefiles of the greater region (province) these roads are in from http://download.geofabrik.de/ . ...
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2answers
538 views

Why isn't Generate (Coverage) Tool working?

I'm using ArcMap 10.2 and I have the Advanced Licence, but when I try running the Coverage (Toolbox) it does not seem to work. Any advice on what is going wrong? I am trying to Generate Coverage. ...
0
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1answer
809 views

How to translate .bil files in a batch mode with QGIS?

I have some .bil files that I would like to convert into ASCII Gridded XYZ format files. It seems to work well with the Raster>Translate tool of QGIS when I process one file at a time. But I would ...
2
votes
1answer
269 views

Trouble using ogr2ogr w/ -s_srs to combine inconsistent EPSG files into my postgis DB

I'm having trouble combining shapefiles from TIGER and different local governments into a single postgis db to query legislative locations. I've imported all data to multipolygon geom, but found some ...
2
votes
1answer
441 views

bounding box in osm files

I have a osm file,i convert it to pbf file by osmosis.but it not convert to .map file.i use this in cmd: osmosis --rb file=city.osm.pbf -mw file=map.map bbox=34.3635451292,30.0247495993,57.513131979 ...
3
votes
2answers
240 views

Why do I get an empty shapefile when converting this KMZ in QGIS?

I have downloaded a KMZ file containing global elevation information. I have tried to convert the data to a shapefile using qgis (save as shape option) and using the zonum solutions website but both ...
3
votes
3answers
2k views

Workflow to convert a DWG CAD file to a shapefile

I'm trying to develop a workflow where I can convert a .dwg file to .shp. I don't have a good understanding of which tools I should be using. My preference is to use software that runs on OSX, is ...
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0answers
56 views

How to raster vector- and shape-files correctly

does anybody know how to convert vector- and shape-files correctly? Doesn't work with tab Raster/convert/vector to shape files. The output always contains strange input-data (wrong and strange ...
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4answers
835 views

Trouble converting .osm to .pbf with Osmosis

I would like to convert a shp file to map file. I know should use these steps: shp -> osm -> pbf -> map For step 1 I use a python script : ogr2osm.py For step 2 I use osmosis, but I get ...
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0answers
157 views

Transform map coordinates to page coordinate in ArcObjects

I have a map inside a page layout in ArcMap. Currently, I use this code to convert geographic coordinates to page coordinates: IMap map = ... IPageLayout pageLayout = ... IDisplayTransformation ...
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0answers
54 views

How to create a point representing a polyline?

How do I convert a line (usually 2 vertices but can be more) into a single point in QGIS? I did it a couple of years ago using a build-in tool in ArcGIS 8 or 9 I think but have no idea how to do it in ...
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votes
3answers
5k views

Convert Shapefiles to GeoJSON?

I'm trying to convert Shapefiles from the State of Texas Senate Districts website into a GeoJSON file for use with Google Maps API. I'm using QGIS to facilitate but I can't get the ...
3
votes
0answers
106 views

Using Field Calculator to Convert Data Type In Field

I am trying to convert a field that is listed as "String" because it was imported into QGIS as a CSV (rural poverty population percentages by county in NC). I need to convert the percentages field ...
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2answers
180 views

cartodb runs out of space *after* shrinking the data in the tables?

I try to work in CartoDB with data I import from CSVs (or xlsx, see below). The data is 24.1 MB in ASCII CSV, 10 MB in xlsx. I spent quite some time shrinking my data's size, and I was happy to ...
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vote
1answer
553 views

How to extract data from Geodatabase?

We have been happily using the 2010 Census Demographic Profile data in Shapefile format for some time. We now want to start using the ACS 5-year Estimates Data Profiles which, sadly, are only ...
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3answers
4k views

How to convert UTM coordinates into Decimal Degree coordinates?

I work on QGis 2.0.1 - Dufour on Macintosh OS X Mavericks. I have UTM coordinates (XXXX and YYYYY) in a table (with one column of X and an other one of Y). I need this coordinates in Decimal Degree. ...
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1answer
614 views

Converting lat-lon from degrees and decimal minutes to decimal degrees in PostGIS [duplicate]

Creating a geometry in Postgis is fairly simple: ST_SetSRID(ST_MakePoint(longitude,latitude),4326); These lat/lon should be in decimal degrees format like 33.02505 -96.70668 Is there a ...
0
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1answer
672 views

Convert some UTM coordinates to Lat Long

I have a series of UTM coordinates in an Excel file that I need to convert to Lat/Long. They are listed in the spreadsheet as "LONG(XUTM)" and "LAT(YUTM)". I know the coordinates are located in ...
0
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0answers
121 views

QGIS convert attribute table to point shape

I have imported an attribute (whith no spatial information) table from MySQL. Fortuantly it has two colums with Longtitude and latitude taken from google maps. Is it posible to use those values to ...
1
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1answer
365 views

Convert decimal latitude/longitude bounding box to SRID 26910

I have a bounding box specified in decimal latitude/longitude, and need to convert this into a bounding box in the SRID 26910 coordinate system. I've never had to work with different GIS co-ordinate ...
0
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1answer
750 views

Lat Long to State Plane conversion

I am using the ESRI javascript API and I have a set of lat/long points I need to convert to a state plane coordinate system. My spatial reference is wkid 3418. I can easily use the GeometryService ...
0
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2answers
6k views

Convert MapInfo raster file (.tab) to use it in QGIS and/or ArcGIS

I am trying to convert raster files from MapInfo (.ecw, .jpg, .TAB) in order to use them with QGIS or ArcGIS. I have access to all 3 softwares. I have tried Data interoperability tools in ArcGIS but ...
3
votes
3answers
2k views

Creating DSM and DTM from a LAS using a freeware solution

Is it possible to export a surface and terrain model files from an aerial, LiDAR point cloud (LAS) set? I am using SAGA GIS for very basic operations, but I couldn't find this option (and I have a ...
0
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0answers
1k 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 ...
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2answers
65 views

Polygon Data to Fit Raster

I'm working with an NHD Flowline of streams and rivers in NC, and I'm trying to only retain the ones in the raster. I tried to convert to the raster to a polygon and was going to clip them, but in the ...
2
votes
2answers
799 views

I need to extract a specific layer from a Geospatial PDF using GDAL/OGR

I have GDAL/OGR 1.10 installed on a 64bit Windows 7 machine. I have some Geospatial PDFs that I want to crop to the outline of the map and convert to Rasters. However I cannot clip to the neatline. ...
3
votes
1answer
2k views

Which plugin can draw topoJson right within Leaflet without conversion?

I already have asked how to reduce file size and increase performance for publishing spatial data on the web using Leaflet, here. A conversion to TopoJSON has reduced the file size by approximately ...
3
votes
2answers
1k views

How to produce a CSV file from .tif file with elevation data? [duplicate]

just want to ask, I have a .tif file that contains all the elevation of a country. How can I convert that to a CSV file that contains x,y,z values where x and y are the latitude longitude respectively ...
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1answer
103 views

Seeking a gvSIG plugin to go from shp to kml to cityGML

I'm looking for a gvSIG plugin to convert .shp to .kml and then to .cityGML. I'm working with gvSIG + 3D extension and I have .shp format data but I need it in .cityGML format.
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2answers
205 views

How to join CSV data to SHP without ArcGIS?

I'd like to create a chloropleth map displaying quantitative data for an upcoming event. Using TileMill, MapBox. I am having trouble joining my data to a .shp because the #'s correspond to COUNTY ...
2
votes
1answer
510 views

Why is my longitude conversion from NY State Plane Coordinate System to WGS84 consistently off by 3.665 degrees?

I'm trying to convert coordinates from the NY State Plane Coordinate System for Long Island (zone #3104) to WGS84 using the GeoTools Java API. The latitude value is correct, but the longitude is ...
0
votes
1answer
121 views

Why are some OSM GPX line string endpoints connected?

I am working with GPX files from OpenStreetMap to render the public transportation lines of Berlin. I converted them to GeoJSON using the togeojson script. For some reason some of the lines are ...
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1answer
220 views

OS Boundary Line shp export CSV with description and lat/lng

I have found several post saying it is possible in QGIS to export OS Boundary Line shp files to csv's containing the boundary line in lat/lng (for use on Google map) along with the name of the area, ...
2
votes
2answers
647 views

Is there a way to export from a vector format to Collada .dae?

I am curious if there is a way to export from a vector format (ie: shapefile for PostGIS table) to Collada (.dae). ogr2ogr will do to GML and KML, but not Collada. My preference is to use open ...
1
vote
1answer
163 views

Which software converts TIFF to TJP (Tiled Jpeg)?

I have Tiff images and I need to export it to Tiled Jpeg. I don't know which software converts TIFF to TJP. Can anyone kindly tell me the name of the software which converts? Thanks
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2answers
86 views

Which format to choose to convert to ShapeFiles?

Given the following format options: all.json, all.xml, all.xls, all.csv, all.kml, all.gjson Which one is the best/easiest to convert the data into standard ERSI Shapefiles which contains the ...
0
votes
1answer
57 views

QGIS map file to be viewed on both mac and pc platforms

Im teaching a class where some students have QGIS installed on their macs and I'm using a pc. Although the file structure is the same mac reference files differently than the pc and I get data link ...
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0answers
313 views

MXD2QGS fails with 'ascii' codec can't encode character

I've tried to convert some mxd files to qgs but, I already have the same error: ": 'ascii' codec can't encode character u'\xe8' in position 57: ordinal not in range(128) Échec de l’exécution de ...
0
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1answer
107 views

Extract longitude and latitude from shapefile

I want to create a media wiki page with map option where polygon required the following format. What is name of this format and how can it possible to extract this format from shapefile? ...