topic Slope/Aspect arrows getting reversed in Layout view in ArcGIS Pro Questions

Slope/Aspect arrows getting reversed in Layout view

BrianBulla — Fri, 19 Mar 2021 17:52:06 GMT

Hi,

I have created a layer to show slope/aspect. In my Map view, everything looks good.

But when I create a layout (with some map rotation based on an attribute in a Map Series), the slope/aspect arrows all get reversed. Where have I gone wrong??

These captures are of the same location, just rotated approx 180 degrees in layout. The correct flow is the first one.

Re: Slope/Aspect arrows getting reversed in Layout view

DanPatterson — Sat, 20 Mar 2021 14:42:32 GMT

are the arrows rotated by an angle in the attribute table of a featureclass?

if so, they won't change when you rotate the map 180, you would have to calculate another angle or change the arrow head to go the other direction.

Re: Slope/Aspect arrows getting reversed in Layout view

BrianBulla — Wed, 24 Mar 2021 16:40:30 GMT

Hi Dan,

Yes, the arrows are rotated according to the aspect value (DIRECTION) but the map series page is also being rotated by a attribute in the layer I'm using for the map series. I'm just wondering if they might be conflicting somehow. I don't really see where else things could be getting messed up.

I have the rotation on the arrows set to Geographic and the field DIRECTION. It shows up properly on the map but not on the layout.

Re: Slope/Aspect arrows getting reversed in Layout view

DanPatterson — Wed, 24 Mar 2021 18:05:29 GMT

I suspect that the arrows have no way of knowing that they should follow what the layout is doing. This is a pretty obscure case so I really don't have any suggestions beyond ... is the layout rotation a need, or a nice... it it is a need then the secondary column suggestion in your table might be the workaround (eg one rotated normally, one rotated by 180

Re: Slope/Aspect arrows getting reversed in Layout view

BrianBulla — Wed, 24 Mar 2021 19:13:07 GMT

Well after some testing it does seem to be the rotation of the Layout that is causing the issue. If I set the rotation field to 0, then all is good. As soon as I start playing with the rotation value, the direction of the arrows gets thrown off.

Problem is I have many map pages, and each one is rotated differently. Guess I'll have to figure something out.

Thanks,

Re: Slope/Aspect arrows getting reversed in Layout view

BrianBulla — Wed, 24 Mar 2021 19:31:42 GMT

Hmmm.....and trying this same thing using ArcMap all seems to be ok using Rotation with Data Driven Pages.

So it must be something with ArcGIS Pro.

Re: Slope/Aspect arrows getting reversed in Layout view

DanPatterson — Wed, 24 Mar 2021 21:04:19 GMT

leaving ... tech support