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, ...

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0answers
15 views

Combine latitude, longitude and value ascii files

I have three ascii files of latitude, longitude and value. How to combine these three ascii files into a single raster of GTiff format?
1
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2answers
35 views

XyTools QGIS plugin for attribute export

I want to export an attribute table to Excel. I see XyTools is used for that (is there another plugin?). Since I installed QGIS from OSGeo4W, I have the required library. However, when I tell XyTools ...
2
votes
3answers
64 views

ASCII file with latitude, longitude and data to GeoTiff using Python

I have a .asc file with three columns of data: longitude, latitude and a data value. Each latitude and longitude point represents the location of a centriod of a 1/8 degree unprojected grid. I want ...
0
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0answers
14 views

Specifying column to use in gdal_translate

I am using gdal_translate to convert a tiff file to ascii. The tiff file is a raster with several columns in the attribute table. How do I specify to gdal_translate, which column to use for creating ...
1
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0answers
43 views

My QGIS keeps me returning “ascii” errors

First, whenever I open QGIS, the extension "Quickmap Services" returns an error with this tracker: Impossible to load the extension quick_map_services because of an error on calling InitGui() method ...
2
votes
1answer
63 views

Importing xyz text ascii GPS time-series for velocity visualization using QGIS?

How i can import text ascii xyz gps time-series in QGIS for velocity visualization? Example xyz MLBU 07SEP17 2007.7098 -0.119998752351520E+07 0.626106994328102E+07 -0.199557178074915E+06 ...
0
votes
0answers
17 views

UK Environment Agency Lidar data [duplicate]

I have recently downloaded LIDAR data from the Environment Agency website in the form of asc file. In order to perform some viewshed analysis do I have to convert these files into a raster file and ...
3
votes
1answer
32 views

Assigning spatial info for NetCDF files using ArcGIS for Desktop?

I have quite a few NetCDF files that arrive from a air quality model without any spatial reference. However, I do have the spatial reference information that is required. Within Arc I use "make a ...
1
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0answers
35 views

Handling warning about DX and DY in gdal_translate from .Gtiff to .ASC?

When I try to convert Gtiff to .asc file, QGIS shows the warning: Producing Golden Surfer style file with DX and DY instead of CELL SIZE since the input pixels are non-square. Use the FORCE CELL SIZE ...
1
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0answers
39 views

Raster to ascii tool converting all data to one value (ArcMap)

I am having an issue when converting a raster to ascii. With extract by mask I have selected the area I am interested in and subsequently resampled the data from 5km to 2 by 2 m (required for use in ...
1
vote
1answer
43 views

How to create a map from separate ascii files without merging them?

I have three ascii files including longitudes, latitudes and pixel values. I just wonder whether there is anyway to display a map from the three files and save it in geotiff without merging them into ...
1
vote
1answer
81 views

convert dbf file to txt file using arcpy

I have a series of dBase files and I'd like to convert them to text files Anyone can help me? I've tried table to table, doesn't seem to work. The idea is to get ASCII files so I can do further ...
2
votes
0answers
43 views

Using QGIS' “network protocol” to import data from OPeNDAP

After looking at the OPeNDAP documentation I assumed I could import data into QGIS by downloading the .ascii file OPeNDAP generates. However the downloaded OPeNDAP .ascii doesn't seem to be compatible ...
0
votes
0answers
32 views

Opening .dir ASCII files

I'm working on some ecological models and one of the datasets I'd love to utilize is that of ECOCLIMAP, its files consist of a hdr metadata file and a dir ASCII file, which I believe is built for the ...
1
vote
0answers
54 views

Extra white space in ASCII file due to Translate GDAL from QGIS Modeler

Could anyone enlighten me why do I get an extra white space in from of my first column in an ASCII file generated through a model? With ArcGIS it doesn't happen. Output raster type: Int32 Output ...
1
vote
1answer
42 views

Exporting output in ASCII from a QGIS model

I'm trying to find a geoalgorithm in QGIS's Graphical Modeler that can convert and export a vector to ASCII. Could anyone enlighten me if there's an option for that? Perhaps through some script but I ...
1
vote
1answer
233 views

Is it possible to use non-printable characters as delimiter for text file layer in QGIS?

I am trying to import a Delimited Text File Layer from a .csv file in QGIS. Because this caused a lot of errors, I posted a question here and got the hint towards using ASCII non-printable control ...
0
votes
1answer
39 views

Properly placing my raster over a shapefile on my map

I have an ASCII file that I converted to a raster. My heading on the ASCII file is: NCOLS 156 NROWS 720 XLLCORNER -170989.3011812 m YLLCORNER 1417628.464462 m CELLSIZE 1 ...
0
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2answers
261 views

Convert x y coordinates to polyline shapefile

I am trying to process output from a model that simulates the movement of particles in groundwater. The program outputs the particle ID number, the x and y coordinates, and the time at which the ...
1
vote
1answer
254 views

Convert ASCII to Raster, then build attribute table

I recently obtained precipitation normals from the PRISM dataset online. I'm trying to import the ASCII files into ArcMap, but have stumbled across a few issues. 1) I converted the ASCII to raster. I ...
-1
votes
1answer
127 views

How to create ASCII time-series files to make TSM_GUI in TIMESAT? [duplicate]

I would like to create TSM_GUI in TIMESAT, but as an input i have to choose ASCII time-series files, but I have only .tif images. How can i do that? Many thanks
1
vote
1answer
118 views

Export attribute table values to CSV

I am getting false parsing and un-necessary quotes for 3 numeric fields when exporting table to ascii (CSV). Items are all DOUBLE. "675,654","5,567,000" is the resulting export format which should be ...
0
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0answers
25 views

ASCII Map Tile Service

I'd like to provide an ascii art basemap on Leaflet/Openlayers. Surely someone has created ASCII Web Mapping Service... Are my googling skills just lacking..?
0
votes
1answer
133 views

How to convert ASCII file to TIN where XY is YX in ArcGIS?

I have some ASCII files (you can download it from: http://analizasan.kvprojekty.pl/underwork/gisse/M3451Ca1.zip) that I would like to create TIN. First I used "ASCII3DToFeatureClass" tool to create ...
1
vote
1answer
68 views

National Bridge Inventory (NBI) data coordinate system

I am trying to import the National Bridge Inventory Lat/Long data into ArcGIS. But when I do it with WGS 1984 Geographic coordinate system, they don't match with the base maps. I don't where I am ...
1
vote
1answer
113 views

Problems opening ASC files in QGIS

I am trying to open an .asc file (pick, for example, that one for 2014) from the German Federal Ministry of Transport and Digital Infrastructure. It contains information on the annual solar radiation. ...
0
votes
1answer
92 views

change projection in an ascii (x,y,z) file

I am having an ASCII file (lat,long,depth) in the Mars projection. I need this file to be converted into WGS-84 projection. How can I do the conversion for the ASCII files.
2
votes
0answers
82 views

How to read .asc format DEMs that have headers with #comments

I have around twenty 2 GB DEMs (xyz) in .asc format. The header has 13 lines of metadata, and then the basic data in three columns # # The DTM grid had lower left (southwest) corner coords: # X ...
-3
votes
1answer
418 views

how to convert ascii to .tiff in arcgis [closed]

I have a *.txt file which is a matrix, and I add the heading info. The tool called ASCII To Raster was used but the generated raster is not in *.tiff. How to solve this problem?
0
votes
1answer
142 views

How do I view ovl files on Geogrid or Top50 then convert the data to shapefiles?

I have some .ovl files which can only opened on Geogrid or Top50 viewer which shows me where everything is. How do I take these ovl files and convert the properties to Shapefiles to be used on ArcMap ...
1
vote
1answer
822 views

Z-value missing in attribute table of shapefile from ASCII 3D to Feature Class?

i'm trying to convert some *.xyz files into shapefiles but unfortunately it does't work out correctly! I use the tool "ASCII 3D to Feature Class" (ArcMap extension "3D Analyst") because I've read this ...
4
votes
2answers
1k views

Creating DEM from geoTIFF or asciiGRID LiDAR data?

For a home project I want to 3D print an area from a map. I have downloaded a geoTIFF file and an asciiGRID file from the Tasmanian governments spatial program "TheList". The two files are here: ...
4
votes
1answer
246 views

Convert downloaded LiDAR info to DEM in GRASS

I have downloaded LiDAR information as a .asc file and a .tif file, and even though I have tried multiple methods to convert them to a dem I am having no luck. Grass GIS says there is an invalid ...
0
votes
0answers
125 views

Converting *.asc to *.shp without using ArcGIS for Desktop or QGIS?

I am trying to perform file conversion programmatically, using C#. I have read the ESRI Shapefile Technical Description (An ESRI White Paper—July 1998). I cannot calculate records for *.shp file ...
1
vote
2answers
460 views

Creating spatial Reference to ASCII file

I have produced ASCII files in MaxEnt. These files are able to be loaded into Arcmap10.1 and display as an image, but I cannot interpret them or create them into a polygon for further analysis. I have ...
1
vote
0answers
111 views

How can I get a .asc file to load into QGIS?

I got some files from an ag plane that are in ASCII format. I cannot seem to be able to get them to load into QGIS without the This is a link to the file I am trying to use. ...
5
votes
3answers
2k views

Create a Raster file out of a ASCII grid file?

im using a special system to do geomagnetic surveys. Its software let me output the information as image files, ASCII or in its own proprietary file format. Now i want to get its information in my GIS ...
1
vote
0answers
438 views

How to convert shapefiles into ascii grid .asc in QGIS?

I downloaded multiple zips that cover a small island from the Rhode Island Geographic Information System webpage, specifically the geographic files that make up Block Island. Here's the source: ...
0
votes
1answer
53 views

problem with viewing ASCII data files in ArcGIS

I have some problem viewing an ASCII file in a structured way in arcGIS. I have tried running this code but it seems problematic at least with me. I am unable to run this. I think the code needs ...
1
vote
0answers
98 views

Maxent output clips to minimum extent of all input variables

I am experiencing an issue with the spatial extent of my output ASC files. I am using the UK Land Cover Map (LCM) 2007 at 25 metres resolution as a categorical variable in my Maxent modelling, ...
3
votes
1answer
580 views

How to convert LAS file to ASCII for DSM in SAGA GIS? [duplicate]

I want to count trees in SAGA GIS and when I try to follow the steps in dominoc925.blogspot.com, there was no problem with asci file (i have converted las file (dem)) but there was a problem with dsm ...
5
votes
1answer
797 views

arcpy - ascii encoding error when updating field content in SQL Server table

I know there are plenty of posts and blog explanations about unicode errors, but I still can't figure out to handle it in my particular case. So here is my problem: I am writing a Python script to ...
1
vote
1answer
294 views

How to read .adf (TIN) map files?

I have a set of maps in few formats : TIN ├── [4.0K] info │   └── [2.6K] arc.dir ├── [ 708] log ├── [374K] M-33-45-D-d-4.asc └── [4.0K] m-33-45-d-d-4tin ├── [ 96] tdenv.adf ├── ...
0
votes
0answers
86 views

Bi-Weekly NDVI data into monthly Datasets

I have NDVI data in both Ascii Grid format (0.250 degrees resolution) and raster format twice a month like: ndvi1981_07a ndvi1981_07b I would like to combine these bi-weekly values (average) into ...
0
votes
0answers
215 views

How to create .dem file in QGIS?

I have an elevation data in .asc file, but need to convert it to .dem file to later use in COMSOL. However, in Raster--> Analyzes-->DEM I got just error message: ERROR 1: DEM Default Setup: Importing ...
6
votes
3answers
700 views

How to convert a National Bridge Inventory(NBI) ASCII file to a shapefile [duplicate]

I have a problem. I have downloaded the NBI ascii file data from http://www.fhwa.dot.gov/bridge/nbi/ascii.cfm. Now I am not able to convert it into a shapefile. The ASCII file has a latitude longitude ...
1
vote
0answers
828 views

How to use paths with non ASCII characters for subprocess calls with ArcGIS

I know that it is possible to create calls using unicode character encoding like \xf8 for non ASCII characters but how do I do it writing a path in a script just like: 'e:\gis\python_ø\notepad.exe' ...
1
vote
0answers
94 views

How to export raster into ascii without losing the statistics?

I had a problem in Mike Urban with a difference between a DEM (Digital Elevation Model) and a 2D overflood model and the support group requested me to remove the difference because the problems were ...
1
vote
4answers
926 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
746 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 ...