What needs to be done when changing measurement
units
When you change measurement units from metric system to english system
or reverse you must check the following program configuration parameters:
q all measurement values expressed in mm
or in inch must be checked and changed if need;
q plan scale will
be changed (section Plan)
accordingly to standard scales used in the two measurement systems, for metric
system 1:1000, 1:2000, etc. and for english system 1:1200, 1:2400, etc.;
q graticule lines frequency will be changed (section Graticule) accordingly to standard
distances used at graticule drawing;
q border margins
will be changed (section Plan layout) accordingly to standards used at
plans layouts drawing in metric or english system;
q block containing table (plan layout cartouche) will be changed (section Plan layout)
with a block defined in mm or in inch, meaning that drawing with this block
must be realized in such way that 1 CAD graphical unit = 1mm or 1 CAD graphical
unit = 1inch;
q values for contour levels equidistance and main contour levels frequency will be changed (section 3D model) so
that contour levels representation to be conform with standards used in metric
or english system;
q path where you find blocks with punctiform symbols and linear symbols file will be changed (section Files). Punctiform conventional
signs and linear conventional forms must realized in such way that 1 CAD
graphical unit = 1mm or 1 CAD graphical unit = 1inch. If blocks with punctiform
conventional signs are realized in another scale then you can correct their scale
at codes defining when you allocate a block for a code (see Codes interpretation file
description). If linear conventional signs (lines types) are in a
different scale you can correct their scale by modifying in a proper way
variable LTSCALE from CAD program;
q choose codes interpretation file (section Files) accordingly to codes system you use.
This change has to be made because in codes interpretation file there are links
between point code and block with punctiform symbol allocated for inserting or
with line type (linear symbol) that passes through this point;
q check and change if it needs texts with measurement units (section Units) for coordinates,
distances, areas and volumes.