Tagged Questions

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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19
votes
2answers
507 views

Can I reproduce this classic cartographic hillshade relief effect (hachures) electronically using modern DEM data?

I own a number of old cetral-European maps and I always liked the classic hand-drawn cartographic hillshade relief presentation that these maps feature. I am not wanting to reproduce the shading ...
5
votes
2answers
765 views

Can shaded relief be “blended” with DEM colour ramp in ArcGIS to produce a more visually dramatic result?

Not being able to use true transparencies with ArcGIS colour ramps where only solid colours are allowed has me always wondering about how to improve the look of the surface in my maps without ...
13
votes
5answers
1k views

Is Hillshade option in ArcMap rubbish or is it me?

Here is a pretty pic of the raster I am using - with no effects applied - just the color ramp and historgram adjusted to show out all the relief - all be it in a very 2D way! I have a raster layer ...
11
votes
4answers
2k views

Shaded relief from DEM in GRASS and QGIS

I have been trying to get a good looking shaded relief model out of GRASS and Qgis for a day or so now and just can't seem to get it. The biggest problem I'm having is the valleys look like ...
4
votes
2answers
338 views

High Mountain hillshade is not “natural”

after generalizing my DHM and extraction of different color-hillshades, I got something like this: Its not very good, but I used the idea of Imhof generalizing and coloring the hillshade ...
3
votes
1answer
563 views

How to create a Hillshade model with multicolor “alà IMHOF”?

I would like to make a Hillshade-Model with multicolor "alà IMHOF". That means, I dont want a "usual" gray hillshade, I would like to use grey-blue and grey-violett from different sun directions. ...
2
votes
2answers
457 views

1'' DHM: Hillshade is too rough - how to “generalize”?

I got that hillshade from my DHM (I used the hillshade-module from qgis). For my purpose there a too much relief details (roughness). How can I get rid of them in QGIS or GRASS? Thanks! Martin