This command scales points in a coordinate file. The northing, easting and optionally the elevation are multiplied by the specified scale factor. You can use this routine for Metric-English conversion or a specific conversion by choosing the Use Customized Scale Factor option and specifying the desired Scale Factor in the edit box.
Specify the Range
of Points to scale by entering in a range or group to
scale. You can access the group dialog box by typing "group" in
the range of points field.
The Description Match option only scales points with the description(s) specified in this field.
The Scale
Factor is to be entered in manually when using a customized
scale factor. If converting from standard measurement units, feet
to meters, meters to feet, US Feet to International Feet, etc., the
scale factor will be calculated and entered automatically. If a
combined scale factor is required for converting from ground to grid
and grid to ground coordinates, this value can be calculated by using
the Calculate
Combined Factor option. This calculation process begins
with the Calculate Scale Factor dialog shown below.
The Projection
Type must be specified as either State Plane 83 or State Plane
27 as well as what state plane Zone is
required.
The available Coordinate
Units are Metric, US Feet and International (Intl) Feet. The
correct unit must be specified before calculating the combined
scale
factor.
The Range of
Numbers to Process should be used to select the points to be
used in order to calculate the combined scale factor. This does
not specify what points are going to be scaled by the resulting scale
factor. These points can be selected from a list by selecting the
List button.
Scale Direction
determines which way the scale factor will be calculated. A scale
for Ground to Grid
or Grid to Ground
can be calculated and applied.
Pressing the Calculate
button will calculate and then display the combined scale factor on the
dialog box. To accept this value as the customized scale factor
to use to scale the points in the coordinate file, press the OK
button.
The Report
option displays a report showing specified information. This
information is specified by using the report formatter found throughout
the program. Simply choose the information you wish to display
and the order to be displayed. For further instruction and
information on the Report Formatter please refer to the Report
Formatter section of this manual.
With Align
Scale Entities
checked ON, after specifying the point range or group to scale and
selecting OK on the dialog box the following command line prompt is
displayed:
Select objects to scale (points excluded):
At this
prompt select the objects on the screen, polylines, lines, arc, etc.,
to
also scale and press enter. The points and
screen entities will be now be scaled and updated graphically and in
the active coordinate file.
With Use
Customized Scale Factor Off, various conversions can be
performed by specifying the Source Coordinate units and the Destination
Coordinate units. This is a quick and easy way to perform
Metric/English conversions.
Pulldown Menu Location: Points
Keyboard Command: scalept
Prerequisite: points in a coordinate file
File Name: \lsp\crdutil.arx