topic Re: Hillshade illumination in ArcGIS Spatial Analyst Questions

Hillshade illumination

LinnHaking — Sun, 14 May 2017 16:13:28 GMT

Hi, I'm working on a hillshade layer of a DEM and want to change the illumination. I opened the Data Frame Properties and the Illumination tab. Here I changed the azimuth, altitude and contrast several times in order to see a change in the Hillshade layer, but no matter the degree, altitude or contrast the picture looks the same. Why is nothing happening?

Many thanks,

Linn

Re: Hillshade illumination

DanPatterson_Retired — Sun, 14 May 2017 16:54:47 GMT

recalculate the hillshade using the different values if you want to see a difference in the hillshades

Re: Hillshade illumination

LinnHaking — Mon, 15 May 2017 08:16:15 GMT

Thanks!!

Re: Hillshade illumination

TimothyHales — Mon, 15 May 2017 19:45:44 GMT

Hi Linn - Thanks for asking your questions and welcome to the GeoNet community! I wanted to let you know that we're moving your question from the GeoNet Help group to the Spatial Analyst since it aligns with the content there. So you're aware on how and where to post your questions, here's a few quick tips and reminders:

First, use the GeoNet search (top right corner by your profile icon) to search and see if your question has already by asked/answered previously.
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The GeoNet GeoNet Help group is for questions and tips on how to use the GeoNet community platform not the Esri ArcGIS platform. Following steps 1 & 2 above will give you the best results for getting Esri product questions answered.
This GeoNet 101 "How to Ask Questions on GeoNet" post is also a helpful guide to asking questions: https://community.esri.com/community/help-and-feedback/blog/2016/08/15/community-news-and-tips-how-to-ask-questions-and-get-answers

Thanks again for contributing and I hope this helps and let us know if you have any questions.