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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11
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2answers
334 views

Remove border lines of SRTM tiles rendered as hillshade

I have downloaded several SRTM DEM raster tiles from https://dwtkns.com/srtm30m/, and created hillshade versions from the tiles. However, upon closer inspection, the hillshade tiles now have border ...
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0answers
60 views

QGIS Hillshade Too Dark

When producing a hill-shade from Raster_>Analysis->Hill-shade in QGIS, I cannot stop my hill-shade from becoming too dark, leaving massive parts cities to be black. I have tried the extremes and in ...
2
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1answer
85 views

3-D Terrain effects for vectors in QGIS?

I'm a bit new to QGIS, and making a few maps of roads through mountains. I'm looking to have a 3-D effect within my 2-D map. I got a DEM, made a hillshade, and blended a basemap over it. Nice ...
8
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2answers
85 views

Using DEM to find permanently shadowed craters

I'm using ArcGIS Pro to try to identify permanently shadowed craters on the North Pole of the Moon. Pictured below is a screenshot of the DEM I'm using which was collected from the laser altimeter on ...
0
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1answer
59 views

How to Save as in 1 GeoTIFF file the hillshade raster and colored raster layer in QGIS 3.4.4?

I have a raster GeoTIFF of western Mediterranean sea and i want to apply the hillshade model with colors as the tutorial explains (Create great looking hillshaded maps in QGIS). After i finished my ...
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0answers
74 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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0answers
132 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 ...
2
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1answer
70 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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0answers
45 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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0answers
43 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 (...
1
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1answer
548 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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0answers
78 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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0answers
55 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 ...
2
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0answers
48 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 ...
3
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1answer
288 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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0answers
202 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....
0
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1answer
129 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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0answers
68 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 ...
2
votes
1answer
96 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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0answers
65 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 ...
5
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1answer
583 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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0answers
56 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 ...
2
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2answers
755 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 ...
2
votes
1answer
118 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 ...
4
votes
1answer
196 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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0answers
157 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
votes
1answer
180 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 ...
5
votes
1answer
1k 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 ...
5
votes
2answers
1k 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 ...
2
votes
1answer
160 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 ...
3
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0answers
114 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 ...
5
votes
1answer
977 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 (...
1
vote
1answer
632 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 ...
0
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1answer
121 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 ...
3
votes
1answer
403 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 ...
1
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2answers
73 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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0answers
100 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 ...
0
votes
1answer
124 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?
1
vote
1answer
267 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-...
0
votes
2answers
594 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 ...
1
vote
1answer
132 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 ...
2
votes
1answer
75 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 ...
0
votes
1answer
214 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
119 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
27 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 ...
0
votes
1answer
161 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 ...
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0answers
776 views

Shade and Color Hillshade using QGIS

I am trying to recreate this demo using QGIS only. https://thomasthoren.com/2016/02/28/making-a-new-york-times-map.html Specifically I am trying to reproduce the hillshade and color portion without ...
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0answers
97 views

No hillshade effect when no-data area is on screen

I'm facing this weird problem when hillshade effect partially brakes if a no-data area appears on screen. If I move the area to hide it off screen, the hillshade effect works. I tried changing ...
2
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0answers
218 views

How is ray tracing different from ambient occlusion when hillshading with SAGA?

SAGA offers both raytracing and ambient occlusion in its Analytical Hillshading module, but doesn't explain how these modes differ. Is one significantly more expensive in computation, and is the ...