The American Standard Code for Information Interchange is a character-encoding scheme originally based on the English alphabet that encodes 128 specified characters - the numbers 0-9, the letters a-z and A-Z, some basic punctuation symbols, some control codes that originated with Teletype machines, ...
1
vote
4answers
70 views
Import ASCII (X, Y, Value) to Feature Attribute in ArcGIS
The output from my landscaping modeling program is simply way too big to be rendered by Paraview. So I am wondering is there anyway that I can import it into ArcMap. The data is divided into several ...
1
vote
1answer
56 views
Arc ASCII Grid output problem in QGIS 2.0
I used to convert tif files to ascii in Qgis 1.8 using gdal translate without having any problems with the output i.e. I have the normal heading and values. When I upgraded to 2.0 I started to get the ...
0
votes
0answers
31 views
change unit while outputting raster to ascii
I am having a problem with outputting ascii from raster file. I've reprojected and set map unit to meter in ArcMap. I've also set the output environment-ish parameters like output projection, x-y ...
1
vote
1answer
96 views
How to export polygon coordinates?
How can I export each polygon-vertice's coordinate (every point coordinate of every polygon) of a polygon Geodatabase-feature class to an ascii text file (csv or txt)? I don't want to convert it to a ...
1
vote
1answer
49 views
How to add LiDAR Intensity attribute to a point feature class?
I need to convert LASD (ESRI LAS Dataset) to ASCII text file. I've export the data to point feature class (LAS to Multipoint), converted multipart to single part and calculate X Y and Z.My first ...
0
votes
0answers
54 views
Maxent out of bound error?
I selected my climate data from wordclim ( tile 29 ) and then used QGis to convert the data
to .asc format . My occurrence data is in degree decimal.But when I run Maxent on any layer
it says that the ...
1
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1answer
135 views
Input data to Maxent niche modelling tool?
I have following question regarding the input format of files to Maxent.
From here I downloaded the environmental layers but they are in tiff format and I guess the tool needs in asc format where ...
1
vote
1answer
55 views
raster to ascii in QGIS
I have a raster file (DEM or .tif), but I need to transform it into a .txt file (ascii). How can I do this in QGis (Quantum Gis)?
Thank you so much!
1
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1answer
79 views
Problem in saving a file in a specific output folder
I have a very simple script that I'm testing. It has always been working so far, but now I'm running in an unexpected error. When I try to save my files in a folder different than the environment one, ...
1
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1answer
63 views
Which kind of grid format is this?
in a project I got some raster files with the following content (header and data are in one txt file):
HOUR 17
MINUTES 30
YEAR 2012
MONTH 5
DAY 4
CITY Emilia;Bologna
NROWS 99
NCOLS 156
ULXMAP ...
10
votes
2answers
864 views
Understanding the .asc file
Reading the ESRI help, Supported raster dataset file formats, I read that ASCII Grid file types are addressed with the singular file extension .asc for both 16 bit signed-integer (for discrete data) ...
2
votes
1answer
109 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 ...
2
votes
2answers
96 views
Convert ASCII Grid Colorized to Raster
I have an ASCII Grid file + .prj file and can visualize this in qGIS. I can colorize it by going to properties and using a Pseudocolor Ramp. However, I want to export this now as a TIFF / Raster. ...
0
votes
0answers
39 views
Is there a relation between OpenLayers coordinates and ASCII file cells?
Basically, I have an ASCII grid format file like this one:
ncols 254
nrows 191
xllcorner 27.963829725
yllcorner 49.334460040
cellsize 0.0001077595
NODATA_value -9999
row ...
1
vote
4answers
1k 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
126 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 ...
1
vote
1answer
72 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
185 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
468 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
172 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
403 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
310 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
71 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
291 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.
...
5
votes
1answer
3k 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
209 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
341 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 ...
9
votes
2answers
1k 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
5k 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
1k 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 ...
