How to get just MGA Zone from Dynamic Text

GraemeBrowning

I'm using Python and ArcPy to automate mapping and have a requirement to project on-the-fly to the appropriate MGA Zone (in Australia) and to report that zone in a text element.

It works well as long as I am happy to use this dynamic text string:

<dyn type="dataFrame" name="Main Map" property="sr" srProperty="name"/>

For example, this will display GDA 1994 MGA Zone 56 when my spatial reference has been set to C:\Program Files\ArcGIS\Desktop10.0\Coordinate Systems\Projected Coordinate Systems\National Grids\Australia\GDA 1994 MGA Zone 56.prj

However, my client has a requirement to just put out zone 56 instead of GDA 1994 MGA Zone 56 and so I have been trying to figure out how to have the Dynamic Text get hold of just the zone 56 part instead.

Two things that I have tried so far are:

1. Set the name property on the SpatialReference object after creating it to be "zone 56"
2. Rename the *.prj file to be called "zone 56.prj" before creating the SpatialReference from it

Neither appears to provide a solution.

I could resort to just creating a pseudo-dynamic text element, but before doing that, does anyone know another way to enable a dynamic text element to pull out just the zone number from a spatial reference like this?

StephenLead

Hi Graeme,

Here is a hack-y version - update the label inside the PRJ file using a text editor.

This seems to work, although it might not be advisable/supported.

Cheers,
Steve

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