All Questions
Tagged with dem geotiff-tiff
67
questions
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Brightness Differences in DEM TIFF File
I created a DEM file with QGIS. File type TIFF. The files I use as sources are also TIFF. The file, which looks normal in QGIS, looks different when I look at it in other programs. When I open the DEM ...
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1
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435
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130 TIF DEM file (total size 3 GB) become 7.4 GB TIF file after merging. Why?
I combined (Merge) 130 DEM maps via QGIS, taking up 3 GB in total. However, the total size of the combined file was 7.4 GB. I'm new to QGIS. It's only been a few weeks. I don't understand why the file ...
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Find Python library to work with DEM in GeoTIFF format [duplicate]
I'm looking for a library for Python that will allow me to do the following thing:
I have a DEM in GeoTIFF format, and I have a list of points with coordinates in Lat/Lon format. I need these points ...
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1
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45
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Using CreateMosaicDataset_management and AddRastersToMosaicDataset_management in ArcPy
I have a standalone ArcGIS Enterprise Server 10.8.1. I am also using ArcPy with Python 2.7.18. I want to publish an Image Service to my server by creating a SD file, given a folder of DEM .tif files. ...
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44
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Exporting Multilayered DEM Maps from ArcGIS Pro
I'm currently working on a project in ArcGIS Pro where I've created a map featuring multilayered Digital Elevation Models (DEMs) with various blend modes applied. My goal is to export this map for ...
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38
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How to have a good rendering with mdenoise - DTM LiDAR denoising
I'm trying to generate a clean slope map from a LiDAR DTM. Due to LiDAR high resolution, the slope map is full of noise.
So to do this, I use mdenoise library.
It works quite well but it generates ...
- 83
1
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1
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1k
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Converting .obj (3D files) to .tiff raster
I have a 3D .OBJ file that i need to convert to raster (geotiff) so that i can use it in QGIS/python gdal.
I have found several answers online about how to convert a DEM or TIFF to .obj, but not the ...
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186
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How to remove noise from a DSM (city center) to create a 3D printable model
For the company I work for, I need to create a 3D printable model of a part of a city's downtown area.
At my disposal (upon request to local government authorities) I have point clouds from LiDAR ...
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2
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2
answers
3k
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Convert TIF file to CSV/ASCII format using QGIS v. 3.24.1-Tisler
I have DTM data in the format of .tif and I need to export this as CSV or ASC for point cloud data input into Leapfrog.
I've read other walk-thrus that are outdated now (2014/2017) that came close to ...
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2
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446
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QGIS Raster Hillshade Classic Drawing Texture
I found this drawing of a valley and really like the texture of it. I suppose this is a sort of hachure map drawn with dots. I was wondering if it was possible to recreate something similiar in QGIS (...
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444
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Merging two DEMs of different resolutions
I have two sets of GeoTIFFs (or ArcGrids) one at 2m resolution and another at 1m.
I would like to merge the 1m on top of the 2m, coverage varies over the datasets as seen here for example:
2m coverage:...
- 191
2
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1
answer
145
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Empty data points in DEM in QGIS
I have a Himalayan DEM with missing data. You can see empty white dots that later affect me when generating .stl files. How can I "color" these empty spots with the nearby spots? They should ...
- 97
2
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1
answer
503
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Denoise/smooth DEM in GRASS GIS using r.denoise addon
I'm trying to denoise/smooth a digital elevation model (TIFF) file on GRASS GIS using r.denoise add-on. I cannot get it to work.
I don't know what to enter in the output box, my goal is to create a ...
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1
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1k
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Converting GeoTIFF to PNG results in completely black image
I have a set of DEM tiles (TIFF format) retrieved from https://cteco.uconn.edu/data/download/flight2016/index.htm which I would like to convert to 16-bit PNG format so that I can use them as ...
- 111
2
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1
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176
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Aligning visible light data to DEM
I just want to preface this by saying that I am not a cartographer, geographer or GIS professional, I just recognize that this is probably the best place to ask my question. As I am none of those ...
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