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KD-DOC.5-8
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1987-10-18
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DRAWING TECHNIQUES
Start out using the program by experimenting. Try
using the various functions and actions and noting
the results. With a little time and practice using
the program becomes very fast and efficient. For
major works take time to plan out the order in
which you will create the drawing. It is generally
best to start with the details, shrink these down
and combine them to produce the final drawing.
If you want the printed drawing to look like the
screen the reverse video action should be chosen
from <F1> just before printing. This is useful
showing things like planetoids. The black back-
ground is more natural. Mechanical drawings should
be printed out without reversing the screen so that
they correspond to the standard method of viewing.
Since many of the actions take place inside of
boxed areas it is advisable to create parts of a
drawing separately and then combine them at the
end. This can be accomplished by drawing the vari-
ous components on different parts of the screen or
by using a screen for each component and combining
screens using the copy action of <F7>.
EXAMPLES:
To draw box: Move the cursor to one of the corners
of the box. Select desired color of box with <F10>.
Select <F2> and <r>ectangle to display the box as
it is drawn. Move the cursor to form the box as
desired. Use the <Shft-Cursor> keys to adjust the
start point of the box if needed. Hit either <F2>,
<ENTER>, or <F1-F8> to complete function and draw
box. Respond <y> to the "Correct (y/n)?" prompt to
keep the box or <n> to return to the drawing as it
was.
DRAWING TECHNIQUES 5-1
To draw a circle: Move the cursor to the desired
center of the circle. Select desired color of the
circle with F8. Select <F3> and <c> for circle.
Move the cursor to the desired radius and hit
either <F3>, <ENTER>, or <F1-F8> to complete func-
tion and draw circle. If the circle is not prop-
erly centered simply hold down the <Shift> key
while using the cursor keys. Respond as desired to
the "Correct (y/n)?" prompt.
To draw a line: Move the cursor to the start of the
line. Select <F6> and <l>. Move cursor to position
line as desired. Use a <ENTER> or <F1-F8> <l> to
mark next point on line. Continue drawing lines.
To stop momentarily use the <Space Bar>. If you
make an error <Back Space> can be use to erase the
last line and redraw up to where you are. Line
width can also be set using the <w>idth command of
the CURSOR MODE and changed at will while drawing
the line. The color can also be varied as the line
drawn and you can switch back and forth with <d>ot,
<p>arallel line, and <s>poked line. When last
point of line has been marked, select F6 and either
<e> or <E> to end the line. If <E> is chosen the
line is not only drawn on the screen, but saved to
disk under user specified name. It can be retrieved
at any angle and any scale using <F6 o>. Even if
you did not save the drawing to disk it is still
available for reuse, continuation or modification.
Select <F6 O> to redraw the last vector.
To erase an area: Move the cursor to a position at
one of the corners of the area to be erased. Select
<F7 e> to mark the corner. Move the cursor to
enclose the desired area with the display box. As
with box the <Shft-cursor> keys can be used to
modify the initial corner position. Select <ENTER>
or <F1-F8> to mark the opposite corner. Copy works
the same way.
DRAWING TECHNIQUES 5-2
Creating 3-D looking spheres or planetoids is easy
using the spray paint feature of <F4>. Start by
drawing a circle of desired size, next paint it
with <F5> as desired. Move the cursor to a loca-
tion on the now painted circle and select <F4 s> to
spray paint one of the colors in the circle or if
you prefer use <F4 Alt-s> to spray paint all fore-
ground colors. Next move the cursor to one corner
of the square containing the circle and select
<ENTER> to mark that corner. Next enclose the
circle in a box by moving the cursor and select
<ENTER> a third time to begin spray painting. This
is a fun operation to use with the key macro since,
by varying the cursor speed before calling the
macro will result in different size planetoids.
Very complex and interesting patterns can be
created by copying and area and then moving off the
screen with <F7 a>nimate. Try this with the file
KD-PTRN.PIC, which can be retrieved with <F7 o>ld.
When you obtain a particular pattern you want to
use leave it on the screen with <F7 M> and then
copy it again. Next move over the object you wish
to paint with this new color pattern. Select <F7
Ctrl-m> to paint the object. (Note the object
should be in color 3 for best results.)
3-D oblique drawings can be made quickly from 2-D
drawings. In high resolution, draw a box with <F2
r>; copy the box with <F7 c>; set the cursor speed
to 1; move one space to the left and one space up;
select <F7 s>; move alternately one step left and
one step up until cube is of desired size; select
<F7 M>; and the cube is complete.
Schematics and flow charts can be readily created
from predefined symbol libraries. Creating your
own symbol libraries is easy and straight forward.
For objects that you want to bring in at different
sizes and angles the features of <F6> are ideal. As
an illustration, lets consider creating symbols of
furniture to use in laying out an office. Start by
DRAWING TECHNIQUES 5-3
setting the scale of the screen so that the furni-
ture will nearly fill the screen when drawn to get
the maximum resolution. Move to 0,0 with <Alt-1>,
select <F6 l, d, p, s> to start drawing the item.
When you have completed drawing the item select <F6
E> to end line drawing save the vector image to
disk. Give the item an appropriate name and go to
the next item. When you are working on the room
layout simply call up the required object from disk
using <F6 o>, rotate it if desired, and place it
where you want.
Special effects can be created by setting the back-
ground attribute to something other then the actual
background. Try setting the background with <B> to
<1>. Now draw a box or circle or line. Note how
the object is left behind as you move the cursor.
When you hit the <ENTER> key the screen is
refreshed and then the final box/circle/ line is
drawn, but sometimes it is desirable to use <B> to
create patterns and other effects much quicker than
otherwise po