2
votes
0answers
32 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
98 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.
1
vote
1answer
67 views

Conversion of coordinates of “Bochum coordinate system”

I need to convert historic coordinate data into more recent Gauß-Krueger data. Specifically, I need to convert "Bochum coordinates" used till 1960 in the local coal mines into DHDN/Gauß-Krüger zone 2 ...
3
votes
1answer
227 views

Extract BoundingBox of Cities

For simple geocoding purposes I want to extract all cities from a single country of openstreetmap. They only queries I want to do are: ZipCode -> (List of) BoundingBox of City/Village ...
0
votes
1answer
75 views

Is there a way to convert multiple columns at once from string to text, or to other data formats?

I have multiple data fields that need to be converted from string to text files. When I save them as "text" in excel or open office, they still load up as string files in QGIS. How can I convert more ...
0
votes
2answers
195 views

Why is QGIS reading in my CSV numeric data as string data, and how do I change it? [duplicate]

QGIS keeps reading in my numeric data from .csv files as string data. This means I have to figure out how to read it in with the proper data type, or convert it back to numeric inside of QGIS, ...
0
votes
1answer
118 views

Is it Possible to Convert a GRD File into an ASC File in QGIS?

Is it possible to convert in QGIS a GRD file (that was created in MapInfo) into an ASC file (that can be imported into SAGA)? Is it possible to "extract by mask" a section of a GRD file in an other ...
7
votes
3answers
589 views

where do I download POIs from Wikipedia? placeopedia used to have them but is now gone

I am trying to improve OpenStreetMap in Siem Reap, Cambodia. A way I am doing this is to add temple locations. I hear that there is a dataset of temple locations available from Wikipedia (presumably ...
3
votes
0answers
80 views

Determine the Degree of Data Lossiness when Converting Data

I'm working through some of the ESRI tutorials on Data Interoperability and it briefly mentions the issue of data conversion being a lossy process. Some questions that come to mind are: What is ...
0
votes
1answer
104 views

Programs to log NMEA on Nomad 900?

I am interested in logging NMEA data on a Trimble Nomad 900. Unfortunately the SatViewer records a maximum of 64,000 characters, too little for my application. I don't want to have to purchase ...
13
votes
3answers
3k 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 ...