Tagged Questions

GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file.

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15 views

Using the GEOTIFF Model Transform Tag

I have managed to figure out how to map Lat/Long to pixels in FAA charts that use Tie Point tags. However, I am now working with charts that use Model Transform tags. So far I am at a loss on how to ...
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1answer
70 views

How determine data type of points in geotiff DTM?

I have some DTMs in geotiff files. I need to read them in C# and I've decided to use libtiff for that purpose. After some investigations, I've found that there are tiled tiffs, so I use ReadTile ...
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1answer
52 views

Unable to show tiff “parameters”

Why this raster (tiff) does not have any values? Why I am unable to perform: doubleclick -> onechannel pseudocolor -> clafify Both rasters are downloaded from the same site: ...
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1answer
84 views

File size inflation normal with gdalwarp?

After using gdalwarp to project and align-to-grid (via -tap) a number of rasters I noticed that the output rasters were significantly larger than the original rasters. A fairly thorough web search ...
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0answers
87 views

How can I draw features on GeoTIFF in Python?

I have a set of data (coords + value) and want to turn it into a heatmap in GeoTIFF. Should I calculate pixels and set them as array, or there are shortcuts? This is what I do now: driver = ...
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18 views

save a WMS image on disk and apply a classitem (gdal commands?)

I need to save an image on disk trough WMS coloring the pixels applying a CLASSITEM (e.g. Mapserver CLASSITEM). Is it possible using gdal, if so, how? Thanks in advance, D
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1answer
33 views

Missing Layer in OpenLayers

When I try to include the "fwp layer" from geoserver 2.4 (Ubuntu 12.4 VServer) into my code it doesn't show up. But the geoserver layer preview (OL) shows the right image. The GeoExplorer preview ...
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18 views

How to Use .tif File as a separate input for neural network Toolbox

I am facing some problems in building neural networks for flood prediction. The problem i am facing is i have basically 4 attributes which i am taking into consideration for flood prediction in my ...
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1answer
124 views

gdal2tiles generates small picture inside 256x256 tile

I've used gdal2tiles for generating tiles in number of different polar projections and always experienced the same problem — strange small picture inside normal 256x256 png with the rest of space ...
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1answer
30 views

Adding customised data into geotiff

Not too familiar with the geotiff format and hence would like to raise a query on whether I could embed additional information data into geotiff metadata section? Is the fields type for geotiff ...
2
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1answer
224 views

How to Map Latitude/Longitude to FAA Chart?

How can I map latitude/longitude to an FAA digital chart? Attached is a sample GEOTIFF. More specifically, how can I get a reference points from the digital data? Once I can get reference points, I ...
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1answer
166 views

How to get the pixels from a geotiff file in gdal python for a given bbox?

I have a GeoTIFF file in WSG 84 Projection reference (it's a GeoTIFF of SRTM). I can use python & gdal to read the whole lot of data into an array (with ReadAsArray()), but I want to only have a ...
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0answers
139 views

Unable to view GeoTiff in GeoServer layer preview

I've loaded a 265 MB world GeoTIFF image (transformed with gdal_translate command) in GeoServer. Everything seems to be ok, but layer preview is blank, although clicking in the map canvas the three ...
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2answers
2k views

How to convert a .tif with .tfw to a GeoTiff?

I have a tif image file, and a .tfw world file (created from OSM data with Mapertive). How can I (using linux command line) convert that to a GeoTIFF file? (i.e. I want to have one file, not 2). I'm ...
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1answer
100 views

Re-registering a GEOTIFF in qgis

I'm working on some images taken from a UAV over the course of a year. They are OSGB 1936 projection as is the whole project. Annoyingly they don't quite line up so I am trying to a few of the images ...
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4answers
700 views

Creating Store in GeoServer using ImageMosaic Plugin gives Error?

I am creating a GeoServer 2.4.1 store with GeoTiffs using the Image Mosaic Plugin and I get the following error when pressing the button Could not list layers for this store, an error occurred ...
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4answers
415 views

How to georeference Tiffs after manipulation in Photoshop?

I am exporting very high-res (7000x7000px) hillshades from ArcMap as tiff files. I am then doing some work in photoshop to the images. How can I easily georeference these tiffs after working on them ...
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1answer
228 views

Export map to geotiff?

I try to export my map (layout or data view doesn't really matter) to a georeferenced tiff-file (geotiff). However, this presumably easy task is proving rather difficult to accomplish. I first tried ...
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1answer
200 views

How to load Georeferenced Scanned Maps in R

I have a geo-referenced scanned Map in GeoTiff format, which I would like to load into R. My intention is to plot some vector data (points and polygons) over this map using maptools package. Is ...
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3answers
141 views

Geotiff reprojection

I am new for GIS programming. I try to change geotiff coordinate system from epsg 32635 to epsg 4326. I used the following gdal command: gdalwarp -rc -s_srs epsg:32635 -t_srs epsg:4326 -dstnodata 0 ...
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1answer
60 views

How to create a value-by-alpha map in Java?

Someone has post similar question as mine before : similar question But my objective is slightly different. I have a shape file (.shp) (a country map) I would like to write a piece of java code to ...
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0answers
158 views

How to make a geo reference image using GeoTool based on a matrix mapped data?

My ultimate objective is to make a geo reference image and make it as a raster layer to overlay the image above my openlayers map. I have a set of geo coordinate data, and each coordinate is assigned ...
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1answer
103 views

Geoserver GeoTiff Raster Layer Turns Shade Pink (Not Pink Error Tiles) [duplicate]

I have been given some geotiff files, sample of one is here I published these files as an Image Mosaic Layer in Geoserver. All is fine except that all the displayed geotifs, at all zoom levels are a ...
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0answers
42 views

No visual after loading geotiff in Qgis Dufour

I installed the latest version of QGis 2.0 for mapmaking. Before I used the 1.8 version and I had no problems in loading Geotiffs. With the latest version, it loads the same files but it doesn't show ...
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0answers
58 views

How do I use VB .net to export the ActiveView to geotiff using Arcobjects?

I want to program in vb.net and Arcobject the exporting of a map to geotiff. What I have done so far is export the map to TIFF but I am not getting Geotiff. When we do it manually we check the write ...
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1answer
66 views

How to remove/disable last row/column of SRTM GeoTIFF in QGIS?

I've started using QGIS yesterday, and one of my main reasons to use it is to apply colormapped SRTM v4 over Google aerial imagery. Everything is working fine, except that SRTM v4 elevation tiles ...
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3answers
96 views

Using gdal_merge to create a grayscale mosaic

My gdal fu is weak and I need help! ;) I'm creating a mosaic in geotiff from hundreds of ecw. I created a list of all my rasters and used this command: gdal_merge -o c:\temp\output_image.tif -q -v ...
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0answers
277 views

Is it possible to create MBtiles from a TIF?

I have a geo-referenced tif (it's really big around 1GB) and I'd like to convert it to mbtiles so I can serve them and view the map. What is the best tool to do this conversion?
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1answer
129 views

How do I find out the resolution in (centimeters per pixel) of a TIF?

I tried using GDAL and got: # gdalinfo nicholas_map_2.tif Driver: GTiff/GeoTIFF Files: nicholas_map_2.tif nicholas_map_2.tfw Size is 28799, 27875 Coordinate System is: GEOGCS["WGS 84", ...
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2answers
68 views

How can i combine the colours of one raster with values from another

I have two Tiffs with data from the same area. One is in colour and when I use the identify shows a 'color index' number (eg. 141), then Color(a,r,g,b)(eg. 255,90,255,0). The other tiff contains a ...
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1answer
150 views

How to add a DEM Band to an existing 3-band TIFF file using QGIS?

I'm quite new in the GIS business and I do not figure out how to do the following thing: I have two geoTIFF Files, one is a 3+1 bands file (RGB+alpha), the second one is a DEM geoTIFF file containing ...
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0answers
126 views

Geoserver raster (in geotiff format) becomes black when grouped by other layers in vector format?

Good day, I am a newbie in field of GIS systems. Currently I have an issue when grouping layers, raster and vector. I would like to use satellite image in geotiff format as a base layer. It works ...
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0answers
214 views

Upload geotiff file using GeoServer Rest API

I can upload shapefile to GeoServer via REST api using cURL. I used this code: curl -v -u admin:123 -XPUT -H "Content-type: application/zip" --data-binary `@F:\temporary\shp.zip` ...
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2answers
78 views

Two r.mapcalc calculations return a much bigger raster cell size than the input raster

I tried the following calculations with a GeoTiff sample, having a cell size of 25m: Calculating the togographic exposure (TOPEX) and estimating the mean topographic curvature Both, the resulting ...
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1answer
512 views

Convert multiple GeoTIFF to one KMZ

I am using GDAL to convert GeoTIFF to KMZ. I am using the following command: gdal_translate.exe -of KMLSUPEROVERLAY *.tif out.kmz If I have one TIF file in the folder, it works ok. If I have more ...
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2answers
684 views

Cropping Geotiff with gdalwarp

I downloaded a geotiff from the recently published 25m-DEM of the European Union (see: http://courses.neteler.org/eu-dem-new-digital-surface-model-at-25m/). One tile has about 5GB so I would like to ...
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1answer
2k views

How to convert a Gtiff to ASCII-Grid using QGIS gdal_translate?

Gdal_translate implemented in QGIS is often recommended for converting to Ascii-Grid. My problem is that every output which is generated from my geotiff-raster layer is binary instead of plain-text in ...
6
votes
1answer
775 views

Using Tilestache and Leaflet To Display Rasters In Native Projection

I have a collection of old Idaho state highway maps in GeoTiff format. The projection that these maps have been georeferenced in is a transverse mercator projection, called IDTM83 (Idaho Transverse ...
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2answers
253 views

Latitude - Longitude bounds from GeoTIFF info

here's the content of a GSFC-generated GOES TIFF image: GOES 13 Imager frame 66 at UTC 12:45:53.520 day 312 of 2013 Vis pixels : 9061, 22912 lines : 2845, 10152 Vis Lon : 999999,-23.1566 ...
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1answer
115 views

WMS render geotiff as a small image

Hye! I am facing Strange problem,My Geoserver 2.2.4 was stop working suddenly so i made a backup of Dir folder and install Geoserver 2.3.5 and replaced workspace folder with new one. Now all ...
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1answer
66 views

while reading a tiff file filenotfoundexception

I am unable to create File object while instantiate a tiff file using TestData.file function it is giving file not found exception . But the tif file is exist on the same path file exists ...
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0answers
107 views

Touch up tool for rasters?

I was wondering if it were at all possible to manipulate/massage rasters (eg Geotiff) using Qgis plugins or Grass?? By manipulate, I mean manually smooth off interpolation artefacts, blended surface ...
3
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1answer
292 views

gdal_translate- why jpg compressed tif is 2 times greater than jpg file?

Using the following two commands yields completely different size files: gdal_translate test.tif -of GTiff -co "COMPRESS=JPEG" -co "JPEG_QUALITY=100" output.tif and gdal_translate test.tif -of JPEG ...
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1answer
555 views

GeoReference tiff image into the Google map?

I want to Geo-reference a tiff image contain a Map for a specific region, I need to add this region(image) and Geo-reference it on the Google map, SO I can see on the map for the region I select the ...
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1answer
153 views

SetColorInterpretation() for a GeoTiff using GDAL not working

I have a single band image which I would like to copy to a 3 bands of a new image and set the ColorInterpretation to red, green and blue respectively. I have tried two approaches, one using the GTiff ...
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0answers
43 views

GeoTIFF LZMA implementation?

Is GeoTIFF with lzma compression commonly implemented? I have geotifcp.exe from qgis but doesn't seems implement lzma. Is there available sources for libgeotiff with lzma patch?
2
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0answers
36 views

ArcPy: Distortion towards edges when exporting to TIFF [duplicate]

I am writing a function to zoom to selection (based on a criteria) and Exporting it to TIFF. The problem I am getting is that the when I load the exported TIFF image in Map, I am seeing distortion ...
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0answers
170 views

How can I force ArcGIS to generate “color pallets” for display of GeoTiffs in the FAIMS Mobile App?

The FAIMS Mobile App 1 displays a black pane instead of a well rendered geotiff when I try to import files directly from ArcGIS 10.1 instead of processing them through gdal and grass. Running ...
2
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0answers
73 views

How do I present labels in raster format in ArcMap 9.3?

I'm creating a raster map of a large city in ArcMap 9.3 which will be used in a third party software. My problem is that I need to find a way to include labels of street names in my output. I have a ...
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0answers
310 views

ArcGIS / ArcMap problem with tiff file and projection

I have a raster in ArcMap . The projection is WGS 1984 UTM 22. When I look the details of the projection I can see that the "scale factor" is 0.9996 When I save this raster in a in tif file and the ...