Tagged Questions

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

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4
votes
1answer
124 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 ...
1
vote
0answers
50 views

How to convert MapXtreme workspace to GeoServer? [closed]

I need to convert a MapXtreme workspace into one for GeoServer. Suggestions for tools/process would be appreciated. Thanks!
2
votes
1answer
350 views

Convert from Geometry to SDE Binary storage type in SDE database

We have been battling performance issues between SQL 2012 and ArcGIS 10.1. One of the most common solution is to convert to SDE Binary storage. We know that this storage type is not as dynamic as the ...
1
vote
2answers
132 views

Saving a gml layer does not change coordinates

I am trying to export a gml layer to geojson with lat/lng as the preferred coordinate system. So what I did was a 'save as' on the layer with selected CRS: 'IGNF: WGS84G'. Now I was hoping it ...
0
votes
0answers
72 views

When doing table to table conversion, a text field gets converted to Blob type

I have one field that keeps getting converted to Blob type after conversion using table to table tool. The field is mostly text and fairly lengthy, maybe 250 ish characters. Is the length of the field ...
1
vote
0answers
36 views

Most efficient way of passing values from OGRGeometry to ModelField in geodjango

I am writing a custom parser that maps shapefile data to a geodjango model in a Django 1.6 project. To read the shapefile I use the DataSource object from django.contrib.gis.gdal, which provides ...
6
votes
1answer
551 views

How do I convert a .dxf to a .shp containing a field with height information in QGIS?

I received two .dxf for my project that represent my area of interest. One of them contains buildings, the other one terrain elevation. They both are 3D. I can convert them to shapefiles successfully ...
2
votes
4answers
2k views

Converting GDB to shapefiles in ArcGIS

So I'm attempting to convert a GDB database into a shapefile. I found the help for ArcGIS 10.1 (my version) and it tells me 2.On the main menu, click Customize > Toolbars > Production Mapping. But ...
4
votes
1answer
100 views

Convert linear polygons to lines

Hi I have some long linear polygons that I'd rather store as lines but I'm not sure how best to do this. Ideally I'd have a line goiung through the centre of the polygon lenthways. I have two ideas of ...
4
votes
3answers
2k 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 ...
1
vote
0answers
103 views

How to keep polygon from becoming polyline when converting polygon feature class to .dwg

Is it possible to convert a polygon feature class from a geodatabase to a CAD .dwg while keep the features as a polygon in AutoCAD? Currently the polygons appear only as polylines. I am currently ...
2
votes
1answer
101 views

Wrong values in Feature/Point to Raster

I've got an XY dataset that I'd like to convert to a raster, based on the ETrel_whol field. The ETrel_whole field includes NaNs and ranges from 0-1. I would like to convert this to a raster, with a ...
2
votes
1answer
34 views

Get coodinates from point shapefile

I converted a line shapefile to points as you can see in the attached image. Is there a way to know the coordinates of each point? Any help would be really appreciated! PD Im using QGIS 1.8.0
0
votes
0answers
133 views

Running OGR conversion to dxf within QGIS

I would like to automate a conversion process which converts a polygon vector dataset (either sqlite or shp) to a dxf using a named column as layer name for the dxf file. The column / layer name is ...
4
votes
0answers
124 views

Convert Graphics to Vector in QGIS

I am wondering if there is a way to convert a graphic produced from symbology in QGIS to a vector layer (ie: shapefile). I have a point layer with bearing direction in the attribute table. Following ...
0
votes
0answers
77 views

what happens to attribute table while performing union, intersection, difference of gml and shp file in QGIS

I am trying to do an analysis of the data conversion from shapefile to GML file using QGIS. For the analysis I have taken a point, line and polygon file. I first took a shapefile and converted it into ...
2
votes
2answers
218 views

Error when looping Polygon to Raster with python through different fields ArcGIS 10

This is the first time I have posted a question on here so please have some patience! I've been trying to create a python script to loop through numerous shapefiles converting various fields to raster ...
4
votes
2answers
310 views

Convert Autocad blocks to ArcGIS symbols

Im trying to import Autocad blocks into ArcGIS. The polyline part of the symbols in these blocks i want to store as a symbol in ArcGIS. Some symbols i was more or less able to find in existing ...
1
vote
1answer
312 views

How to convert shapefile to KML file using ArcPy? [duplicate]

Python script that checks to see if a specific layer file exists in the current workspace and, if it does, converts the layer file to a KML file. Does it work with a shapefile? Code so far: for file ...
2
votes
4answers
517 views

QGIS Polygon precision

I have a fairly straightforward question; is there a way to edit the precision of polygon points in QGIS so that each coordinate has the same number of decimal places? For example, the coordinate ...
1
vote
0answers
61 views

Line features into polygon features

Can any one tell me how to convert line features into polygon features in ArcGIS. I am using ArcGIS 10. I searched the arc toolbox for any tools for this conversion, but I couldn't find any. Please ...
3
votes
3answers
851 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 ...
0
votes
0answers
78 views

conversion from .osm to .map with mapwriter plugin fails

I have a problem with Osmosis v 0.43 with mapsforge mapwriter plugin 0.3.0. on Windows. A command osmosis --read-xml file=C:\geo\testmap.osm --mw file=C:\geo\genmap.map bbox=0.0,0.0,51.9,19.2 fails ...
4
votes
2answers
745 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 ...
0
votes
0answers
15 views

Read (old?) Trimble files into ArcGIS? [duplicate]

I have a number of files that I believe are from a Trimble GPS. The file extensions are: .cor .gic .gip .gis .giw .gix .obs .obx .SSF I need to be able to map the data in ArcGIS (these are old ...
0
votes
2answers
101 views

How to convert an IGeometryCollection into a Polyline

I am using the CostPathAsPolyline method which returns the Polyline as an IGeometryCollection. I now need to get this converted back into a polyline. But it seems to be more complex than just a ...
2
votes
1answer
105 views

Problem converting coordinates

I'm trying to convert punctual values from lat/long to EPSG:6372, a projection for Mexico, defined by the Instituto Nacional de Estadística y Geografía (INEGI). I found a converter online but somehow ...
2
votes
1answer
717 views

How can I export elevations from AutoCAD in a format that ArcMap can read?

I have elevations in Autocad, I can shift between a triangles, contours etc if it makes any difference. How can I export these into something I can use in Arcmap? I have tried the Make shape function ...
1
vote
1answer
94 views

Is it possible to convert a jpg file into lyr

I am a beginner with GIS 10.0. IS there any way to convert a jpg file into a layer? I am working on a problem that needs to have the entire map of my city as a layer but I just have a jpg file of the ...
2
votes
0answers
50 views

Problem converting KML file to .lyr [closed]

I have a problem in converting KML files into lyr ones with ArcGIS 10. I do all the steps perfectly but the conversion fails and the red check mark appears. It is surprising that when I repeat the ...
1
vote
2answers
918 views

Convert .asc format into shapefile

I've got some data from "http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp" and it is in *.asc form. To process them I need to convert them to shapefile (need to merge them all into one shapefile and ...
3
votes
2answers
220 views

Convert file with coordinates, keep record ID

I have the following sample data: 345 -515561.05 -1166540.03 456 -515542.01 -1166548.76 999 -515519.61 -1166552.19 789 -515505.29 -1166550.25 321 -515477.05 -1166546.82 201 -515431.12 -1166534.06 197 ...
1
vote
1answer
338 views

How to export a geojson file with correct order of coordinates?

I was testing rendering of data via GitHub in geojson format, because I wanted to use it for INSPIRE data. INSPIRE data are in GML 3.2.1 format. I've downloaded one of datasets from ...
1
vote
0answers
148 views

Azimuth, Inclination [closed]

I work on a software and I want to compute Dx Dy with Azimuth, Inclination. MD TVD Azimuth Inclination Relative X Increment Relative Y Increment X Coordinate Y Coordinate 0.000000 ...
3
votes
2answers
218 views

How do I export XY data from QGIS to shapefile?

How do I export XY data from a comma-delimited file to a shapefile using QGIS?
1
vote
0answers
136 views

Is there a free way to convert DGN v8i to… any other format?

(Update: We have postgis and ogr2ogr (etc.) but not any ESRI or Microstation software.) I just got DGN v8i files and I can't find any free way to convert them to... anything else. FME and AutoDWG ...
2
votes
1answer
283 views

Convert MineSight (*.msr) files to Shapefiles or Feature classes

How would I convert the Minesite(*.msr) files to Shapefiles. Minesite files are used in Minesite Software which is used for creating block models in 3D. Thanks in advance for your responses. ...
0
votes
1answer
338 views

Test of ORACLE DB functions converting lat-long to utm and mgrs with real data known to be correct?

I have rewritten some Delphi function to ORACLE DB functions for converting from lat-long to utm and mgrs. Anyone care to validate the output with real data they know is correct? package ...
1
vote
0answers
156 views

Input a KML file dynamically into MapServer without losing attributes?

Is there any possibility for MapServer (I'm running v6.2.1) to process the features / styles from a KML file dynamically? I tried STYLEITEM "AUTO" but it turned out to work only for *.dgn and *.tab ...
2
votes
2answers
753 views

How to programmatically convert arbitrary XML data to shapefile?

EDIT: Based on the answers below I decided to do some programming. I'll be using GEOtools for this, a java lib: http://www.geotools.org/ I have the following XML: <shapes ...
3
votes
2answers
305 views

Lidar data in ArcGIS 10.1

Problem: I have a set of LAS files that doesn't display in Arcmap. Details: I try to use LAS to tin in Arcmap to convert my LAS points to a TIN. However, when browsing to the folder with the files, ...
0
votes
1answer
109 views

Plotting a point within a bounding box as a percentage of X/Y

I have two pairs of lat/long coordinates that represent the top left and bottom right corners of a bounding box. I have a third pair of lat/long coordinates representing a point within this bounding ...
1
vote
1answer
59 views

Assigning an intersecting line length dependent value to a raster during polyline conversion

I am converting a road network polyline into raster format- my polyline shapefile has an exhaust emissions rate attribute which is in kg/km What I want to achieve is a raster that has (at say 5m ...
2
votes
1answer
212 views

How do i convert STDS file to ASCII DEM?

I've downloaded several 7.5 minute DEM files from USGS and they have file names like: 1661629.DEM.SDTS.TAR On MAC these decompress into a folder with serval files having the extension '.DDF'. Is ...
3
votes
1answer
279 views

How to create Extended Data for KML exported from shapefile by ArcGIS for Desktop?

I have a GIS shapefile of 300+ points that I am converting to KML using ArcGIS for Desktop. Once in KML I want to create custom balloons by editing the KML file. However, the HTML feature in ArcGIS ...
4
votes
1answer
304 views

Is there a way to handle file names with spaces in ogr2ogr?

I'm trying to convert .shp files to .kml files. I used a batch file to find all .shp files in a directory and its sub-directories and convert them to .kml. Some converted and some gave me the error ...
2
votes
1answer
923 views

Convert 32 bit image to 8 bit image in QGIS

I want to convert my images from 32 bits to 8 bits. I'm using otb to calculate texture and the raster output is on 8 bits, I'm going to use this information as a layer stack for my multispectral image ...
0
votes
1answer
924 views

How to convert a bil image into grid in ArcGIS?

GIS beginner here. I've downloaded RFE data from FEWSNET. It's a compressed file which includes .bil files. Now i want to convert this ".bil image" into a grid to use the precipitation data in an ...
1
vote
2answers
142 views

Is it possible to change CRS without the .prj file?

I'm working with QGIS and trying to change the CRS of some maps. Is is possible to do it without the .prj file? Please let me know. Thanks.
2
votes
1answer
422 views

Can OGR2OGR batch file run in cmd.exe?

I have very little experience in dealing with ogr2ogr, and currently I am trying to find out if there is a way I can automate batch conversion of .shp files to kml using windows services schedule. So ...