It is clever not to use absolute dimensions in the drawings. If we
measure everything as a multiple of a unit length, we can easily
scale the whole font. The unit length should be specified in sharp
units (designated with `#12#) which are device independent. We
must then convert it into device dependent number of pixels by
calling define_pixels
. To do this, ![{\logo META}](/file/17149/TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO/graphics/drawing/drawing.tex/img4.png)
must know the
properties of the output device. To set everything up, you should
call mode_setup
at the very beginning and supply the
correct mode when you call ![{\logo META}](/file/17149/TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO/graphics/drawing/drawing.tex/img4.png)
.
It may be interesting to see on screen how ![{\logo META}](/file/17149/TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO/graphics/drawing/drawing.tex/img4.png)
is drawing the
picture. It is accomplished by screenstrokes
. The
beginning of ![{\logo META}](/file/17149/TeX CD-ROM July 1995 (Disc 1)(Walnut Creek)(1995).ISO/graphics/drawing/drawing.tex/img4.png)
source file may therefore look as: