Press
Grid
in
Determine Scale
.
Key
Description
OK
To confirm the selections and return to the panel from where
this panel was accessed.
Scale
or
Ppm
To switch between displaying the true scale and displaying
the ppm.
Description of fields
Field
Option
Description
Method
Method by which the grid scale factor is cal-
culated.
User
entered
Grid scale factor can be manually typed in.
Known local
point
Grid scale factor is computed using the posi-
tion of a known local point.
Local point
Selectable list Available for
Method: Known local point
.
The point ID of the point chosen from the
local job from which the grid scale factor is
computed using the projection selected.
Grid scale
factor
The grid scale factor.
Editable field
Available for
Method: User entered
. To
type in the grid scale factor.
Display only
Available for
Method: Known local point
.
The computed grid scale factor.
Next step
OK
returns to
Determine Scale
.
39.4.4
Computing the Height Scale Factor
For One Point Localisation method with Twostep transformation. Calculates the
height scale factor of the point chosen.
Press
Height
in
Determine Scale
.
Access
Compute Grid Scale
Factor
Description
Access
Determine Coordinate System
553