Edit Control Point Properties

The Edit/Properties function allows you to create a new control point.

Point Number
Click on the point to which the control should be attached, or type in the point number.
The current coordinates of the point will then be displayed

Name
Enter the Name of the Control Point.
If the “Master File” option is to be used, be careful that the name of each control point is exactly the same as its name in the Control Point Master File.



Easting
Every point must have an Easting (X) value, and it must be on the same datum and zone as the other control points in the job.

Northing
Every point must have a Northing (Y) value, and it must be on the same datum and zone as the other control points in the job.

Height
The height (Z) value for the point is optional.
If a point has no height value, this field will be blank. The adjustment uses the value of the nearest control point to compute the height above sea level correction for parcel lines.

If there are no control point heights, it is assumed that this correction need not apply

Horizontal Accuracy
The horizontal accuracy field is not used by the adjustment at this stage as all active control points are assumed to be fixed points.

Vertical Accuracy
The vertical accuracy field is not used by the adjustment at this stage as all active control points are assumed to be fixed points.

Active
Tick this box to make the control point 'Active' - it will be used in the Control Points Listing Fit and also in the Adjustment.
Control Points that are not 'Active' are allowed to change co-ordinates or 'float'.

Extra Attributes
Press this button to display and edit the Extra Attributes for the control Point.