topic Help with ASPECT colour code issue - ArcGIS 10.1 in ArcGIS Spatial Analyst Questions

Help with ASPECT colour code issue - ArcGIS 10.1

JeffChartrand — Wed, 03 May 2017 15:43:53 GMT

Hi I have been trying to do a simple Aspect and my results are not using the standard colour codes. I am using ArcGIS 10.1 with a *.asc file. The results produce what seems to be a grid with values related to azumeth but does not use the indicated scheme shown in help or which I have generated in past. I have tried the same file on a different machine running ArcGIS 10.5 and they automatically are coloured as indicated in help files. I have created Aspect layers in and out of geodatabase. Anyone has this problem or even better a solution to this problem?

Re: Help with ASPECT colour code issue - ArcGIS 10.1

DanPatterson_Retired — Wed, 03 May 2017 16:09:10 GMT

The aspect symbology is normally selected when you actually create an aspect raster using the Aspect tool in Arctoolbox. If you add an aspect raster after the fact, then it is not automatically selected. You can choose it yourself from the color ramps available... tip... right-click on the ramp list and uncheck the toggle so that it shows the names of the ramps instead of the colors.

Re: Help with ASPECT colour code issue - ArcGIS 10.1

JayantaPoddar — Wed, 03 May 2017 22:10:19 GMT

In Symbology tab of Layer Properties, Select Classified > Choose the number of classes as 8 > Click Classify > Choose the method of classification as Manual > Enter the appropriate break values.

Once the range is populated, choose each colour as desired. Apply.

You can also save the Raster layer as a layer file, so that the symbology could be imported for other Aspect layers as well.

Re: Help with ASPECT colour code issue - ArcGIS 10.1

DanPatterson_Retired — Wed, 03 May 2017 23:06:22 GMT

of more simply

Re: Help with ASPECT colour code issue - ArcGIS 10.1

DanPatterson_Retired — Thu, 04 May 2017 10:52:47 GMT

Apparently CP thinks the manual way is correct

Re: Help with ASPECT colour code issue - ArcGIS 10.1

JeffChartrand — Thu, 04 May 2017 12:14:29 GMT

Dan, Thanks for your kind replies. As you indicated in your reply 'normally' when generated from the Aspect tool I would expect it to use the defined colour system indicated in help files. For some reason mine is not doing it. It may be my local copy of ArcGIS is faulty. Ah well, manual approach will get me over the issue (Thanks Jayanta!!). I was about to upgrade to 10.4 anyway.

Cheers Jeff

Re: Help with ASPECT colour code issue - ArcGIS 10.1

DanPatterson_Retired — Thu, 04 May 2017 12:31:04 GMT

you still need the color ramp, so you can use my suggestion anyway... the toggle appeared as far back as 9.3 if memory serves... otherwise you will have to set the colors yourself