OPERATION
3-32 L025317 Issue 5 July 2014
DXF Import
DXF (Data eXchange Format) specifies an ASCII (plain text) file that allows
the exchange of geometric data between different CAD systems as well as
between a CAD system and an external program.
AutoCAD versions up to and including version 12 are supported, but any
information about 3-dimensional objects is discarded. However, if your
CAD program claims to use a DXF format of AutoCAD version 13 or higher,
your drawing might be imported well if you do not use fancy objects like
shapes, rays, multilines or ellipses.
Not supported are fonts and labels. Note that if there are dimension lines in
the drawing, the dimension lines will be imported, however the dimension
data is omitted since it is a label.
The major difference of DXF to HPGL files, which can be imported by
Dynamark as well, is the need of interpreting the content of the DXF file:
HPGL already defines the order of a plot, i.e. adjoining polygons and lines
are plotted as one single polygon without interruption, whereas DXF just
describes each entity without any information about their proximity.
Dynamark offers the possibility to find adjoining lines and assemble them to
continuous polygons. However this is a time consuming process and
decreases the total performance of the marking engine, but increases the
performance of the print itself, i.e. calculating the print becomes slower
whereas printing becomes faster.
Properties
Join Lines - Sometimes when an AutoCAD DXF file is imported, an object's
polylines are not joined. This means that each line on that object is its own
line, and is not joined to the rest of the object. This happens when an object
is created in AutoCAD using lines rather than polylines. By checking this
option these lines are joined if the distance is lower than the defined join
tolerance.
Join Tolerance - Maximum distance between two lines that are joined
together when the option “Join Lines” is checked.
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