Calculations
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19-02-2003 17:42
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Step 2. Drawing of elements.
The process of drawing installations in Ventpack is greatly simplified by a number
of initial settings that can be defined in the "Settings" dialog box,
saved by the program in part to AutoCAD and in part to the drawing file itself.
Before starting to draw the first installation, the parameters of each ventilation
system must also be defined using the "systems" function, determining line color,
line type, layers, style of numbering and dimensioning, shape and format of element
numbers, and many other properties of the installation. These settings can be saved
to a file, thus it is sufficient to define each system only once, recalling them
later as a template for other systems in following projects. System parameters can
be modified at any stage of the design process.
Zoom
Figure 1. The "FDBES - Settings" dialog box.
Installations are drawn by selecting elements from the libraries and arranging them,
element by element, much like domino blocks. It is also possible to simplify the
design process using the "continuous drawing" function. By specifying consecutive
points on the installation, including changes in direction, the program automatically
selects and places the appropriate elements (ducts and elbows). The "follow-the-wall"
function allows for quick drawing of installations by marking only a reference line
(the wall line), automatically laying down ducting at the predetermined distance from the wall.
Elements already placed in the drawing can be modified at will. When a required
element is not available in the libraries, it can be created as a special,
so called "nonstandard element" that has all attributes and features recognized
by the program. Each nonstandard element is assigned a number and position in the list of elements.
FDBES has been developed as a 2D application in order to simplify its use.
Ventpack automatically keeps track of elevation for each ventilation element,
as the coordinate of the first element is specified by the user when starting the system.
Owing to this, the program can create certain cross-sections of the installation
using the command "cross sectioning". After selecting the elements to be
included in the cross-section, the program copies and rotates them to another view,
accurately depicting the required cross-section drawing, and automatically removing
the copies from the list of elements. Afterwards, it is sufficient to draw only the
lines depicting architectural elements, such as the floor and ceiling.
Zoom
Figure 2. The "FDBES - System Properties" dialog box.
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