4.3.5. Area Calculaion
The function Calculate > Area
is available for the calculation of
areas.
In the section Area
you can address sectors that are already confined by lines as an area via the
button <Select>. Using the
command <Load>, you can call up areas that have been saved. A manual input is possible in the section Points via the button <New>.
The
input can be made by an entry in the field PointNo
or by clicking the points directly. With the button <OK>
the selected point is accepted and a further area point can be defined. The
dialog can be quitted by pressing <X>.
After the area has been selected, the associated points and
the area information are displayed. The area corresponds
to the area at ground height. If reductions are activated, these are implemented
beforehand.
In the list of points the coordinates and vertical curve radius are displayed as
well as the point numbers and point codes.
With the aid of the buttons <New>
and <Paste> in the section Points,
points can be adopted into the point list and thus included in the area
definition. The points within the list can be edited by double-clicking them. In addition to the point number, a control survey that has been measured can be
entered in the point input dialog under MeasDist.
The control measurement applies to the next point. If the current point is the
last point, the control measurement applies up to the first point.
The Radius denotes the internal
radius of the line. A negative radius means that the center of the circle lies
to the left of the line.
Arc
> 200 gon means that an arc
with aperture > 200 gon is used.
The function of
the buttons in the section Points,
with which the list of points can be edited, is as follows:
|
<New> |
A new point is added to the end of the list. The point can be selected by clicking on it or by entering the point number. |
|
<Paste> |
A new point is inserted in front of the marked point. Input is executed as with <New>. |
|
<Delete> |
The marked point is deleted. |
The buttons in the section Area have
the following functions:
|
<New> |
Discards the previous area. A new input is required. |
|
<Header> |
By pressing this button a dialog is called up where the header data for the area are entered. These data are used for the protocol process. The dialog is quitted with <OK>. |
|
<Print> |
The area calculation is protocolled. |
|
<Save> |
The area calculation can be saved to a file. This file has the extension .FLA. |
|
<Load> |
An area calculation is loaded. |
|
<Copy> |
The name of the area and the area points are copied into the Clipboard. This serves purposes of data exchange with other programs. |
|
<Divide> |
The Area Division dialog is called up (see below). |
Area division:
The Area Division
function is called up via the button <Divide>.
For this division, the reference line must first be entered. The reference line
lays down the line to which the area is to be divided in parallel. If the
reference line lies within the area, the division takes place to the left of the
starting point in the direction of the end point. With the aid of the field Distance
the reference line can be displaced. Under <Option>
this line can be led through a fiducial point or a footpoint.
In
the field Separation, a separation dependent
on a control area and several identical areas can be selected under <Option>.
The separation is then performed in accordance with the size of the control area
or the number of identical areas.
After
<OK> has been pressed, the
new points created by the area division are displayed in a list and in the
graphic.
The points can be saved by pressing the button <Save>,
whereby the new point numbers and point codes are then queried.