WiseImage – User’s Guide
188
Parameter
Description
Auto Extend
vectors
This feature simplifies forced selection and tracing of arcs and
lines.
While recognizing a line you can click two arbitrary points on
it; and WiseImage automatically extends the resulting line to
its endpoints.
While recognizing an arc you can click three arbitrary points
on it; and WiseImage automatically extends the resulting arc
to its endpoints.
Export single
contour
This checkbox tunes the performance of selecting raster areas
by tracing outlines (see page 174). If the box is selected, then
tracing creates the outer contour of the object. If the
checkmark is off, then tracing yields the outer contour and the
inner one, if there are “holes” in the raster object.
Controlling Properties of Created Objects
When creating vectors by tracing (and also with the automatic vectorization
procedure in the Pro version), the program by default assigns the current values of
color and layer properties of the AutoCAD system to the generated vector objects.
The program also calculates the width of vectorized raster lines and assigns to
approximating vector objects the value of
Lineweight
, nearest to the calculated lines
widths.
Þ
You can only obtain the correct results of assignment of objects widths
during vectorization in the case where the width of raster lines does not
exceed 2.11 AutoCAD units, as the
Lineweight
parameter can only accept a
finite set of values in the range 0 to 2.11 mm. Therefore raster objects, used
for vectorization, are recommended to be inserted into AutoCAD drawings at
a scale of 1:1.
Using the
Separate
tab of the
Conversion Options
dialog box, you can control the
properties of created vector objects: calibrate the widths of obtained vector objects,
place vector objects, corresponding to raster lines from the specified ranges of
width on various AutoCAD layers and/ or assign various colors to created objects.