topic Re: Surely it can't be this difficult to produce a schematic??? in Mapping Questions

Surely it can't be this difficult to produce a schematic???

ClaireParsons — Sat, 04 May 2013 10:54:05 GMT

I am running ArcGIS 10 and am trying to produce a schematic of a railway section using geographic data.
I have run through the quick start tutorials but I seem to produce zilch when I try to create a diagram.
I have even tried to produce a schematic from a few digitised lines that I know are topologically correct but still nothing.

Am I missing something? Is there some magic setting that I haven't pushed?

Joking aside any help would be greatly appreciated as I have some members of staff manually creating schematics and it is taking along time.

Many Thanks
Claire

PS - I have uploaded a pic of my basic network to see if anyone can see anything obvious.

Re: Surely it can't be this difficult to produce a schematic???

ClaireParsons — Sat, 04 May 2013 12:41:50 GMT

OK - things are moving forward - Hurrrah, I have managed to produce a schematic.

Now - I have some track quality data that is plotted using linear referencing techniques to the rail line in a seperate layer. How do I get this to show on my schematic?

Thnks
Claire

Re: Surely it can't be this difficult to produce a schematic???

RickAnderson — Mon, 06 May 2013 19:53:41 GMT

Glad you were able to get a diagram to generate. There are some other video tutorial available to help get you started:

http://resources.arcgis.com/en/communities/schematics/01n600000012000000.htm

Now for the linear referencing...this can be tricky. Schematics has the concept of a NodeOnLink and a SubLink. Both of these require configuration to work correctly. Look them up in the help system for more information:

http://resources.arcgis.com/en/help/main/10.1/index.html#/What_is_a_schematic_feature_class/004z0000000p000000/
http://resources.arcgis.com/en/help/main/10.1/index.html#/What_is_a_schematic_feature_class/004z0000000p000000/

So it typically requires a custom query schematic feature class to retrieve the linear reference data related to the features that are being displayed on the diagram, then some attribute configuration to make them display correctly.

Re: Surely it can't be this difficult to produce a schematic???

ClaireParsons — Tue, 07 May 2013 09:27:38 GMT

Thanks for replying Rick.
I've actually got the geo-schematics working quite well now.
Iwondered whether you could help me any further - I haven't quite got to custom queries yet but will read up in the help.

Thanks
Claire

Re: Surely it can't be this difficult to produce a schematic???

RickAnderson — Tue, 07 May 2013 15:58:34 GMT

Let me know how it goes.

We have had one of our distributors in Europe get standard linear referencing to work directly on the diagram, but he wrote some custom tools to force in the m values and make it all work. It also only works if there are no Node Reduction rules happening in the schematics configuration. If you are not using rules and are a developer type, I can get you that code to take a look at. If rules are in play, then using NodeOnLink and SubLink is the only way because schematics manages the simplified features.