The ascii tag has no wiki summary.
1
vote
4answers
59 views
Get pixel value from a raster in a xy table
I'm trying to find a way to convert a raster (in my case it's a Landsat satellite image) into a table with 3 columns which would represent: 1) x coordinates (the so called "xllcorners" in ASCII ...
0
votes
1answer
34 views
How can I avoid UnicodeEncodeError when using geoprocessing tools in QGIS?
I have a shapefile, that I want to split with the "Split Layers by Field"-tool. Due to some umlauts (ä,ü,ö) there will be a python error as soon, as the tool reaches a feature with an umlaut. The ...
0
votes
0answers
11 views
Input data format and read multiple files into Grass 6.4.1
I am trying to read in multiple (hundreds, thousand) LiDAR ascii files into Grass.
They contain elevation data.
I think I have managed one, and I can make a map of elevations, using File, Import ...
2
votes
0answers
91 views
Best method to convert CSV file of lat/lon and depth data to bathymetry polygon?
I'm trying to create bathymetry polygons based on lat/long and depth data. I have tried several methods and the resulting polygons are clunky.
Make XY Event Layer-->Copy Features--> Project-->
...
1
vote
1answer
204 views
How to draw grid cells in QGIS?
I have one ASCII text file with eight columns. The first four provide the x-coordinates (e.g. longitude) of the four corners of a grid cell, while the last four provide the y-coordinates (e.g. ...
0
votes
1answer
96 views
Batch Export feature attribute to ascii
I have around 160 feature classes that I need to convert into ascii files. Spatial statistics tool ---> Utilities ---> Export feature attribute to ascii only allows converting one file at a time. Is ...
11
votes
2answers
313 views
Converting ascii windspeed files to rasters
I have been trying to convert windspeed files to rasters without success. It was discussed in an Arcgis forum which I followed. This involved replacing semi-colons with spaces and adding a header.
I ...
4
votes
0answers
193 views
Batch Converting ASCII into Feature Classes using shapefile lists
Problem. I have 413 ASCII files totalling 4 billion points, and my system cannot handle converting them to MULTIPOINT so that I can generate Terrains. Therefore I would like to create 12+ subsets of ...
3
votes
1answer
58 views
How to modify height model values outside of road network
I have a height model of a quite big area saved in Esri ASCII grid files and a road network of this same area in a shapefile. I'd like to convert every height model value outside the road network to ...
1
vote
0answers
213 views
how to get ascii grid from corine land use data?
I'm trying to get ascii grid with land use data (by one parameter - CODE_00). Afterwards I will import it into simulation tool. But I cannot figure out how to convert ascii grid from shapefile.
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4
votes
1answer
2k views
How to convert ESRI grid file to ASCII format, or otherwise import into matlab
I need to import a climate map downloaded from WorldClim into Matlab for manipulation with the mapshow command. I am comfortable reading in ASCII grid data into matlab, but this format is not ...
1
vote
1answer
181 views
Error 000204 using “Export Feature Attribute to ASCII” Tool on ArcGIS Server 10
I´m trying to export feature attributes to a CSV-File (on ArcGIS Server) to use them in other applications (using the "Export Feature Attribute to ASCII" Tool).
While the tool is working ok in a ...
1
vote
2answers
271 views
What I'm doing wrong with the command r.out.ascii in GRASS GIS?
I have raster in .bil format which I want to save in GRASS GIS with r.out.ascii. I get this result in .txt file:
north: 1N
south: 0
east: 1E
west: 0
rows: 1
cols: 1
55537
I suppose it is something ...
8
votes
2answers
790 views
Export table to X,Y,Z ASCII file via arcpy
I'm looking for a way to export an ArcGIS table (created with the Sample command) to a text file via arcpy. I can do this in ArcGIS via the context menu by right-clicking the table, but have not found ...
2
votes
2answers
3k views
Manipulate .asc files in qgis
I have an .asc file and I want to import in QGIS. The standard way to open it is from "add Raster layer" ("import Raster Layer"), there is another way? I know is strange that ask but I need it.
And I ...
9
votes
5answers
810 views
Determine min and max values in an ASCII raster dataset using Python
I have a raster dataset in ASCII format. Using Python, I need to determine the min and max values inside the dataset. I've been told that the header information is key, which contains things like ...
