Orthogonal Calculation Elements

Element	Description
Element	Base line for orthogonal surveying. Click to view the element in the drawing. Click to identify another base line. Enter an Offset value or use to shift the line. Enter a Radius value if your base line is an arc. Enter an Azimuth value or use to modify the orientation of the base line.
Point 1 Point 2	Specify the base line by two points (P1 and P2) and a radius (for a straight-line radius, enter 0). With a point Offset value, you can specify a base line that is tangent to a circle with that radius. If you click a base line in the drawing, the coordinates of the next two vertices are inserted in the dialog box.
Easting and Northing	Edit the coordinates in the dialog box or use to select another point.
Constructed	The coordinates of the calculated point. Use to determine the abscissa and ordinate of an existing point. This is useful for calculating another point with delta values.
Abscissa Ordinate	Enter the abscissa and ordinate of the new point. Enter negative ordinates to determine points that are left to the base line. Use in the Constructed row to transfer the values of an existing point into the dialog box. Use in the abscissa or ordinate row to specify the value in the drawing.
Value Delta	Specify the values with an absolute number or with delta values related to the current value. This is useful for calculating a number of points with the same abscissa or ordinate distances. Enter a delta value and click Calculate. The new value is calculated by adding the delta to the current value. Click Calculate again to add the delta value again.
Distance	Base line properties
Measured	Distance that was measured in the field.
Calculated	Calculated distance of the base line points P1-P2; read-only.
Factor	Enter a measured distance to calculate a factor, which is used to adjust the differences between calculated and measured distance proportional to the abscissa values.
Abscissa P1	Abscissa value at point 1; the default is 0.00. If your measurement did not start with the abscissa 0.00, enter a new value. If your actual starting point is different from the indicated P1, use Abscissa P1 to select this point in the drawing. If the point is not on the selected base line, the projection point is calculated.
Save The Dimension Features	Save dimensioning for the calculated features automatically. Use the COGO And Dimensioning industry model options to specify the dimensioning feature classes.