AutoCAD Map 3D has options
that are designed for geospatial features with polygon geometry.
For example, you can do any of the following:
- Use a special expression to find the
area of a polygon feature.
- Split a single polygon feature into two
or more new features.
- Merge two or more polygons into a single
- Create rules for assigning properties
to polygon features after you split or merge them.
In this tutorial, you
connect to geospatial data for parcel polygons. You split a parcel
into two uneven new parcels and assign attributes to each resulting parcel
using split/merge rules.
You join a data source to the parcels to add
assessor data. You export the parcel layer to create a data store
that contains the joined data as part of its native schema.
Connecting to the new
data store, you create a property called “ValueByArea.” ValueByArea
is a calculated property that represents the area of each parcel
divided by the last sales price logged in the joined data store.
You create a theme based on an expression that references the calculated
Finally, you publish
your map to MapGuide, so others can view it on a website. You must
have rights to a MapGuide 2009 Server, which supports the new templates
used in this exercise. To do this exercise, you must have credentials
and write rights.