This command rotates points in a coordinate file. The degrees
of rotation can be entered directly or calculated from original and
destination bearings or azimuths.
The Rotation
Pointwill remain
unchanged while the points specified for rotation rotate around
it. This point can be specified by using the List
button to pick from a list of points contained in the coordinate
file, or from the screen by using the Pick
button. The rotation point can also be defined by a coordinate
value by manually entering in the X and Y values of the point. This point must be defined before the rotation will take place.
The Original Bearings/Azimuths and Destination Bearings/Azimuths
can be entered directly or specified by point numbers. If using a
pair of points to define the original bearing and then specifying the
destination bearing by entering in the desired Bearing/Azimuth, the
From and To Pt# fields should be left blank in the destination
bearing/azimuth settings. Use the From and To Pt# fields in the
Destination Bearing/Azimuth when you want to make a direction or
Bearing/Azimuth between two existing points match the Bearing/Azimuth
between two other existing points within the file. For example,
to make the bearing between points 10-12 match the bearing between
points 25-26, the Original Bearing/Azimuth could be defined as From
Pt#10 To Pt#12 with the Destination Bearing/Azimuth defined as From
Pt#25 To Pt#26.
With Rotate
Screen Entities
checked ON, after specifying the point range or group to rotate and
selecting OK on the dialog box the following command line prompt is
displayed:
Select objects to rotate (points excluded).:
At this
prompt select the objects on the screen, polylines, lines, arc, etc., to
also rotate and press enter. The rotation of the points and
screen entities will be completed.
Various Output options for the rotated points are available.
Overwrite Existing Coordinates will overwrite the existing coordinate points with the new translation coordinates thus changing the coordinate values in the existing crd file.
New Point
Numbers will assign
new point numbers to the translated
coordinate points and
leave the original coordinate points unchanged and present in the
coordinate file. When using
this option, on the Range of Points to Translate dialog, there is a
Value to add to point numbers field.
In this field, enter the value to add to the point numbers. For example
if the existing point
numbers are 1-20, and the value to add is 100, the resulting new point
numbers will begin at 101 and end
at 120.
Specifying the points to be rotated is accomplished either by specifying a Range of Points (1-20,33,36-40....) or by Point Groups. If using the Point Group option, the Select Point Group(s) dialog box will be displayed allowing for the selection of the Group(s) to rotate.
The Description Match
option only rotates points with the description(s) specified in this
field.
The points that have been specified for rotation that are present in the drawing will be graphically updated to their new location in addition to an automatic update of the coordinate file.
Undo Last Rotate restores
the points to their previous location before rotation. It is
important to note that if Rotate Screen Entities has been checked to
restore the rotated objects to their previous location will require the
use of the undo command located in the Edit pulldown.
Pulldown Menu Location: Points
Keyboard Command: rotatept
Prerequisite: points in a coordinate file
File Name: \lsp\crdutil.arx