AutoCAD Map 3D has options that are specifically designed for geospatial features with polygon geometry. For example, you can use a special expression to find the area of a polygon feature; you can split a single polygon feature into two or more new features; you can merge two or more polygons into a single feature; and you can create rules for assigning properties to polygon features after you split or merge them.
In this tutorial, you will connect to geospatial data for parcel polygons. You will split a parcel into two uneven new parcels and assign attributes to each resulting parcel using Split/Merge rules.
You will join a data source to the parcels to add assessor data. You will create a new property called “ValueByArea.” This is a calculated property that represents the area of each parcel divided by the parcel’s value.
You’ll export the parcel layer to create a new data store that contains the joined and calculated data as part of its native schema.
Connecting to the new data store, you’ll create a theme based on an expression that references the calculated property.
Finally, you’ll publish your map to MapGuide, so others can view it on a website.