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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35 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 ...
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1answer
31 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
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1answer
34 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 ...
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1answer
30 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 ...
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1answer
78 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 ...
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1answer
41 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 ...
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1answer
22 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
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1answer
48 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 ...
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0answers
14 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..?
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1answer
47 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 ...
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1answer
38 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 ...
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1answer
47 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
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1answer
48 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.
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0answers
54 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 ...
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votes
1answer
123 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?
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1answer
95 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 ...
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1answer
283 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
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2answers
343 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
175 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
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0answers
82 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
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2answers
230 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
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0answers
63 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 can not 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. ...
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votes
3answers
590 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 ...
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0answers
281 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
47 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 ...
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0answers
66 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
336 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 ...
4
votes
1answer
478 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 ...
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0answers
173 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
73 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
142 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
536 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 ...
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0answers
642 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' ...
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0answers
67 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
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4answers
435 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
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1answer
552 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 ...
1
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1answer
1k 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
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1answer
154 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
190 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
565 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
125 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
252 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
82 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 ...
13
votes
2answers
8k 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
379 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
252 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. ...
1
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4answers
5k 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
1k 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 ...
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1answer
226 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
303 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--> ...