Tagged Questions

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

learn more… | top users | synonyms (1)

0
votes
1answer
20 views

downloading data from UNdata onto ArcGIS 10.1

http://data.un.org/Search.aspx?q=population I am trying to download data from UNdata and successfully opened one link of raster data, however the data that I really desire won't open on Arc. I hit ...
0
votes
1answer
125 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
95 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 ...
0
votes
1answer
186 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
vote
1answer
94 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
votes
2answers
203 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
votes
1answer
60 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 ...
0
votes
0answers
71 views

How to visualize the Xdata attribute in AutoCAD?

I have converted my GIS data to CAD using data interoperability. The tags (attruibutes)would appear as Xdata in AutoCAD. How can I Show These attributes there? your assitance is appreciated in ...
1
vote
1answer
113 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
347 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 ...
4
votes
0answers
296 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 ...
1
vote
2answers
198 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 ...
1
vote
0answers
299 views

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

Converting from a GPX track to CSV is easy, but I'm looking to go the other way. I have a table of point locations logged with a handheld GPS, with timestamps. I need to convert them to a GPX file ...
0
votes
1answer
88 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/ . ...
0
votes
0answers
32 views

Using USGS_Raster_Conversion_Scripts.zip to convert ArcGrid files to GeoTiff

I know the GeoTiff export option is no longer available in the http://viewer.nationalmap.gov/viewer/# so will have to convert it from ArcGrid source files instead. I am following the readme and how to ...
-1
votes
2answers
130 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
votes
1answer
265 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 ...
1
vote
1answer
93 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 ...
1
vote
1answer
137 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
107 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 ...
2
votes
3answers
660 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 ...
0
votes
0answers
34 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 ...
0
votes
4answers
217 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 ...
0
votes
0answers
52 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 ...
0
votes
0answers
44 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 ...
2
votes
2answers
129 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
66 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 ...
1
vote
2answers
91 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 ...
1
vote
1answer
119 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 ...
-1
votes
1answer
928 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. ...
1
vote
1answer
242 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
votes
1answer
340 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
votes
0answers
71 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
vote
1answer
197 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
votes
1answer
413 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
votes
2answers
1k 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 ...
0
votes
0answers
225 views

How to convert a shapefile to binary grid?

I have a polygon shapefile with a UTM projection which I read into MATLAB: s = 'C:\path\to\shapefile.shp' % Read the shapefile shp = shaperead(s); How can I convert this simply polygon into a ...
3
votes
2answers
577 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
votes
0answers
443 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
votes
2answers
53 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 ...
0
votes
0answers
202 views

Save label edited shapefile and convert to Microstation DGN

Usually i use FME converter to convert any file but now with the above, how to: SAVE / EXPORT the .shp file including the changes made to LABELS ( to best of my understanding, the edited lines are ...
1
vote
1answer
984 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 ...
2
votes
2answers
218 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 ...
1
vote
0answers
48 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.
0
votes
2answers
103 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
185 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
81 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 ...
1
vote
1answer
94 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, ...
1
vote
2answers
164 views

Vector to Collada

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
72 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