Geometric Options

Geometric options are available from the Geometric menu. Use them to do the following:

• Calculate the length of lines
• Calculate the perimeters or areas of polygons in a particular feature layer
• Include m, x, y, or z properties for points in data stores that support them.

The Length2D and Area2D options perform calculations on fields in the data store. However, the results of these calculations are not saved back to the data store. In AutoCAD Map, you can create a calculated field to store this information. These functions are available for every data provider except for raster, WFS, and WMS providers.

To use these options, select the object on which you want to perform the calculation. Then create the exact expression shown in the examples that follow. Do not replace the argument Geometry with an actual value.

Option	Definition	Syntax	Example
LENGTH2D	Calculates the length of lines and perimeters of polygons	LENGTH2D(Geometry)	LENGTH2D(Geometry)
AREA2D	Calculates the area of a polygon	AREA2D(Geometry)	AREA2D(Geometry)
M	Accesses the m (measure) ordinate of a point	M ( Geometry )	M (Geometry)
X	Accesses the x ordinate of a point	X (Geometry)	X (Geometry)
Y	Accesses the y ordinate of a point	Y (Geometry)	Y (Geometry)
Z	Accesses the z ordinate of a point	Z (Geometry)	Z (Geometry)