Questions tagged [hillshade]
A hillshade is a grayscale 3D model of the surface, with the sun's relative position taken into account for shading the image.
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ArcGIS 10 Hillshade create bad values
I need to create an Hillshade from a DEM. The DEM has a projected CRS and I have performed Calculate Statistics before running the Hillshade tool. I am using ArcGIS 10.3 and I have Spatial Analyst ...
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30 views
Batch processing DTM with Hillshade in QGIS 3
I'm using the Hillshade tool from GDAL library [Raster analysis] in QGIS 3.4.
I can't use the batch process with creative options like compress=LZW or profile=Geotif. It doesn't work.
The tool works ...
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42 views
Smoothing out hillshade pixels using QGIS?
QGIS 3.4.2
I made a hillshade topo map out of an SRTM 30m DEM, and tweaked the rendering until I had a pretty decent looking hillshade layer at small scale.
However at large scale it is still ...
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28 views
Using Hillshade Analysis Parameters?
I need to use two different sets of Hillshade parameters where one needs to have an azimuth of 80 and an altitude of 20 and the other needs an azimuth of 140 and 40 and then combine them into one but ...
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1answer
55 views
PyQGIS: GDAL hillshade patchwork effect
I have used QGIS to batch import and visualise tiled elevation data. This is illuminated greyscale, with identical parameters used each time, so I would have expected the result to be seamless and the ...
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26 views
Hillshading all tiles by default in QGIS?
I've downloaded a zip of img files from the TN Lidar page, but see no useable tilemap to know which tiles I actually want to look at (the whole zip was over 4GB amd 600 tiles). I'm only wanting to ...
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31 views
Disappearing Pixels on the edge of Hillshade raster
When I've created Hillshade in ArcMap and received the output raster, I've noticed that output Hillshade has one pixel less than I have in the source DEM. It doesn't matter where I create it (...
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1answer
221 views
Using Color Ramp Manager Plugin in QGIS?
I followed instructions mentioned here and installed the Color Ramp Manager by choosing install experimental plugins as well.
Now, when I go to Properties > Style > Single Band PsuedoColor and I ...
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55 views
ArcGIS hillshade creates artifact on tile boundary
I'm working with ArcGIS on a DTM made of 1x1km tiles (cell size 20cm). When I try to create an hillshade model based on this DTM I get visual artifacts on tile junctions, whereas there are no visible ...
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32 views
Displaying raster data export from temp folder using ArcGIS Desktop?
I'm coming up against a fairly unusual raster display issue I haven't encountered before. As a caveat, I'm not the most experienced at working with display of raster data, so I assume (and hope) it's ...
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42 views
What is the difference between these two CRS and why affects the hillshade rendering?
I am working with a 2m rater files which are in the Swedish SWEREF99 18 00 (EPSG:3011)
The Proj4 information when selecting the CRS with the EPSG code inQGIS is:
+proj=tmerc +lat_0=0 +lon_0=18 +k=1 ...
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1answer
169 views
Hillshading makes crater-like depressions look elevated?
I have a 1 m resolution DEM of the seafloor of a field of depressions. Hillshading the DEM makes the depressions look like mounds instead.
What I can do to fix this?
My raster is projected in UTM, ...
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138 views
ASTER DEMs multidirectional hillshades
I am trying to produce a multidirectional hillshade from ASTER DEMs in QGIS. basically I am trying to achieve something similar to this
which is a screenshot from this layer https://services....
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1answer
69 views
Automatically detecting relief in flat areas from hillshape for marine bathymetry using ArcGIS Desktop?
I am trying to identify areas of interest in the ocean around 30-150 m that have some "topographic relief" compared to their surrounding areas. I did this manually by looking at the hillshade and ...
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65 views
Can I call GDALDEMProcessing from the C# wrappers
I'm trying to code up a hillshade function in C# using GDAL. I have the packages installed via NuGet but I can't seem to find the GDALDEMProcessing calls for producing hillshades and color reliefs. ...
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41 views
Multiple GDAL operations on Raster Dataset without opening and closing files multiples times
I'm going to start writing a script, likely in python, where I need to open a raster file, reproject it, multiply it with a slope-shaded elevation model then save the full res outcome as well as ...
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1answer
66 views
geotools hillshading dem
I'm currently trying to apply shade relief effect to dem raster layer(geotiff format, one band with float samples, min and max are around 77 and 100) using geotools. I've tried diffrent parameters ...
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52 views
Batch hillshade algorithm not correctly generating layer
I am trying to run the SAGA GIS Analytical Hillshading algorithm as a batch process. The algorithm works fine for a single input, I am inputting ASCII files of LiDAR data, but it does not work as a ...
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25 views
Merging two rasters with different properties
I am trying to merge two hillshades. One is a 16 bit signed TIFF, one is 8 bit signed ESRI grid. They are in different projections and have different cell sizes.
First I created a copy of the the 8 ...
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42 views
Esri Terrain-Tools v1.1 Sky Tool Cannot Save File
I am trying to use Esri Terrain-Tools v1.1 to create a hillshade from either a 90 m SRTM DEM or 30 m DEM. I have tried saving this to a file geodatabase (FGDB) and .tif. In both cases the error ...
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1answer
289 views
Hillshade shows grid texture artifacts
I tried to make an hillshade and a slope map from a DTM using QGIS but the result shows some artifacts.
As you can see in the picture there is a grid texture in the hillshade and the slope map.
I ...
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54 views
Need some help with a hillshade [duplicate]
I've been using GIS for a dissertation project and am having a little trouble with using a hillshade on a specific DEM.
My project is looking at Cyprus, and as such I've looked around and found a ...
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2answers
423 views
How to convert 4band RGB/A GeoTiff to 1band Gray GeoTiif?
I'm creating slopeshade images from a DEM. What I'm doing is:
gdaldem slope -alg Horn -s 1 -compute_edges -co BIGTIFF=YES in.tif /vsistdout/ | \
gdaldem color-relief -co BIGTIFF=YES -co TILED=YES ...
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1answer
93 views
Hillshade error: output values all equal 180
I am having trouble producing a hillshade using the ArcGIS spatial analyst (hillshade) tool. I am working with a 1m DEM in a projected coordinate system (GDA_94_MGA56) and have adjusted the Z-factor ...
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1answer
151 views
How to create hillshade models every hour for a zone with GDAL
I´m trying to calculate the hillshade models from a zone for every hour during one month. I´m using the GDAL, gdaldem hillshade (I don´t know if there is another tool/library).
The problem is how to ...
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105 views
How to remove parallel stripes from DEM in QGIS or GRASS? [duplicate]
I have DEM (*.tif) from which I need to create shaded relief in GRASS/QGIS.
Problem is that it appears to have some parallel stripes all across the raster, as on picture below.
I used resampling ...
2
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1answer
171 views
How can I get the original DEM from a hillshade raster (GeoTiff)?
The problem is that the hillshade raster has a zfactor of 1.4 and for hydrological tool I need the real data. I tryed to divide the whole raster with raster-calculator with a factor of 1.4 but it ...
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94 views
Creating hillshade with QGIS: hillshade image is smaller than input raster
Creating a hillshade from a tif file (Raster->analysis->DEM), I realized that the output hillshade raster was smaller than the input .tif file:
The original raster cell cize is 1.0 meters. I am using ...
4
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1answer
704 views
Hillshade results look too grainy
I have a problem with hillshade function: I've set 315 azimuth, 45 vertical angle and 1 Z factor, but the result is very bad...
The original dem file is a .geotiff from Global Data Explorer (Aster ...
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2answers
968 views
Using processing.runandload in QGIS 3
I want to create and elevation hillshade but I found the script for QGIS 2.18. What should I use instead of processing.runandload? Here is my script on QGIS 2.99 python console:
import processing
...
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92 views
Creating DEM's- Hillshade with points
Situation: Doing a mapping thing for a friend's property. I'm wanting to show some relief/elevation using a DEM as well as another for hill shading. The DEM offered by the county GIS dept isn't high ...
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1answer
123 views
GDALDEM hillshading running slow?
I have, for a while, been trying to make a terrain map using NASA's SRTM 3 dataset. I have a large (13 GB), geotiff projected to web mercator of all the elevation files provided. I have been able to ...
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0answers
100 views
QGIS Orfeo Toolbox: Smoothing tools generate unwanted black border on a hillshade raster
I'm using the Smoothing (gaussian) and Smoothing (mean) tools in the QGIS Orfeo toolbox to blur a hillshade raster I've generated. However, they both come out with a thick black border at the edge of ...
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1answer
743 views
Merging hillshade / DEM data into color relief single geotiff with QGIS and GDAL
I have a single-band geotiff DEM and I have managed to create a color version of it (with single-band pesudocolor) and a hillshade (with Terrain Analysis --> Hillshade).
As per the online lesson (...
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1answer
552 views
DEM terrain model tool: Band data type Byte not supported in GMT
I am trying to create a hillshade. I am using the DEM terrain model tool, choosing the right input file and write output, but keep getting this error message "ERROR 1: Band data type Byte not ...
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1answer
99 views
Should I use my DEM or ortho file to create my Hillshade layer?
I've just finished processing my DEM and ortho files, and have been asked to make my hillshade layer. I'm not sure whether to use my DEM or ortho file with this tool. What is the difference between ...
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1answer
315 views
How can I get a blurred Hillshade effect in QGIS?
Does anyone know how to achieve this blurred hillshade effect in QGIS? This one was produced by a former colleague and I can't find a way to replicate it. More specifically, what I can't achieve is ...
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2answers
68 views
Pan-Sharp hillshade?
I have an SRTM-derived hillshade (30x30m) and a Quickbird scene (0.6x0.6m).
Is it possible to kind of pan-sharp the hillshade to have the detail but also have the topography?
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81 views
Slope values are not accurate in QGIS? [duplicate]
Edit: Yes, using a DEM for a bigger area worked. However, now I'm getting crazy slope values, everything is around 90 degrees. It's a hillside vineyard, I don't think it's vertical.
I am trying to ...
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1answer
74 views
Hillshade is not showing relief in ArcMap
When I use the hillshade tool this is what the map looks like. The shaded relief is not showing what it should.
How do I fix this?
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1answer
191 views
Losing resolution of my DEM/TIFF when converting from HGT
I need to get a nice hillshade from this area. My steps:
1) Get HGT files from the area:
-- phyghtmap --download-only --a -43.7544:-23.2363:-42.0378:-22.3183 --earthdata-user=myuser --earthdata-...
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2answers
412 views
How to render relief shadows on my map?
I have my OSM data in a local server.
I already done with the contour lines using Phyghtmap and achieve a good result.
Now I'm trying to show the relief "shadows" like this beautiful map:
I know it ...
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1answer
102 views
Does the location of a DEM affect hillshade outputs?
I have a generic digital surface model (DSM) and I want to simulate illumination in different parts of the country on the same day, all using the same DSM. (i.e., how does illumination differ in ...
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380 views
Slope and Aspect outputs from Python script tool coming out incomplete?
I wrote a simple Python script tool that just takes in a DEM and calculates Aspect, Slope, and Hillshade. For some reason, the Aspect and Hillshade tools will not output rasters that are the entire ...
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1answer
70 views
Generated ArcGIS tile cache ignores DEM hillshade effect?
I'm attempting to generate a tile cache in ArcGIS 10.3 where one of the input layers is a DEM raster. The resulting tile cache displays all layers as expected, except for the raster layer. The output ...
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1answer
159 views
Merging Hillshades in ArcGIS Desktop?
I have nine hillshades generated from DEMs and I was wondering if there is a way to merge all of them into a single layer. I tried using the Merge function but it didn't allow me select all the nine ...
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0answers
116 views
How can I display world hillshade and a shapefile without losing original colors and hillshade details?
This is what I am trying to do, but I am using the World Hillshade file from ArcGIS online and a land status shapefile:
http://www.esri.com/news/arcwatch/0312/learn-a-new-method-for-displaying-...
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0answers
26 views
Hillshade Elevation relativity (Keeping elevations relative across various rasters)
I have a number of various Lidar projects that I created DEM's with. I want to keep them separate (no mosaic), but need to create a hillshade from each DEM. My issue is if the max Z value in DEM#1 is ...
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0answers
30 views
Can I see what hillshade illumination settings were used to create a particular hillshade geotiff?
Are the settings used to create a hillshade geotiff captured in the geotiff file somewhere? I am trying to expand the coverage of an existing hillshade and want to make sure I am using the same ...
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1answer
137 views
Seeking DEM data to make hillshade and contours?
I used to make hillshade and contours for several scales from Aster 30m GDEM with ErMapper. My data is not covering everything I need, so I am looking for a recent one.
I saw there was a Aster GDEM ...
