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lessn047.msg
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1996-11-15
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74 lines
*********************** DASHED LINES ***********************
\
DASHED AND DOT DASHED LINES ARE DRAWN IN THE CONSTRUCTION
AREA AS A SERIES OF SMALLER LINE SEGMENTS. WHEN A DASHED
LINE IS DRAWN AND IS GROUPED ITS COMPOSING LINE SEGMENTS ARE
GROUPED INTO ONE ENTITY.
<end>
LET US SELECT "DASHEDLINE" FROM THE MENU.
<end>
TO DRAW A DASHED LINE SIMPLY SELECT TWO POINTS BETWEEN WHICH
A DASHED LINE IS DRAWN IN THE ACTIVE COLOR.
<end>
TO DISCONNECT THE WHITE RUBBER BANDING LINE PRESS KEY "0".
<end>
KEY "7" (ORTHO) WAS USED FOR HORIZONTAL & VERTICAL LINES.
LET US DEMONSTRATE HOW EACH INDIVIDUAL LINE SEGMENT IS A
SEPARATE AND INDEPENDENT LINE.
<end>
IT MAY SEEM AS IF A LOT OF SMALL LINE SEGMENTS ARE HARD TO
MANAGE. THIS IS TRUE IF DASHED LINES ARE NOT GROUPED AS
THEY SHOULD BE. TO DEMONSTRATE LET'S DRAW NEW DASHED LINES.
<end>
NOW LET US GROUP THIS LINE.
<end>
THE GROUPED DASHED LINE APPEARS IN A DOT PATTERN WHILE WE
ARE IN THE CONSTRUCTION AREA. LET US PRESS "5" AND GO TO
THE GROUPS AREA AND DEMONSTRATE HOW THE DASHED LINE IS
TREATED AS ONE ENTITY.
<end>
PRESS "5".
<end>
NOW SELECT COPY "RANDOM SNG" (COPY RANDOMLY SINGLE GROUPS).
<end>
LET US MAKE SOME COPIES.
<end>
LET US GO BACK TO THE CONSTRUCTION AREA BY PRESSING KEY "5".
<end>
THE LINE SEGMENTS OF A DASHED LINE ARE SEPARATE INDIVIDUAL
LINES TO ALLOW FOR MAXIMUM FLEXIBILITY IN DESIGN; THAT IS
EVERY SINGLE ELEMENT OF THE DRAWING CAN BE MANIPULATED.
<end>
THE SIZE OF THE DASH AND THE SPACE BETWEEN THE DASHES IS
SET BY ANOTHER FUNCTION CALLED "DASH PARAM". IN A MINUTE WE
SHALL EXPLORE THIS FUNCTION.
LET US SELECT THE "DASHEDLINE" FROM THE MENU.
<end>
THE OPTION "DTDSH" CREATES DOT DASHED LINES. THE SIZE OF
DASH THE DOT AND THE SPACE BETWEEN THEM IS SET BY THE
FUNCTION "DASHPARAM".
LET US SELECT THE FUNCTION "DASH PARAM".
<end>
AS YOU NOTICED UPON SELECTION OF THIS FUNCTION THE CURRENT
VALUE OF THE DASH, DOT AND THE SPACE ARE DISPLAYED WHILE
YOU ARE PROMPTED FOR THE NEW VALUE. THIS TIME THE SAME
VALUES WERE INSERTED. THE VALUES ENTERED HERE ARE IN
METERS SINCE THE COORDINATE SYSTEM IS IN METERS (SEE STATUS
LINE ABOVE). LET US DRAW SOME DOT DASHED LINES.
<end>
TO DISCONNECT THE WHITE RUBBER BANDING LINE PRESS KEY "0".
<end>
DASHED RECTANGLES, ARCS AND CIRCLES ARE DRAWN BY SELECTING
THE OPTIONS "DASHD" & "DTDSH" ON THEIR RESPECTIVE SUBMENUS.
LET US DEMONSTRATE THIS.
<end>
THE VALUES SET IN THE FUNCTION "DASH PARAM" (DASH PARAMETER)
APPLY EQUALLY TO ALL FUNCTIONS CAPABLE OF DRAWING DASHED AND
DOT DASHED LINES.
<end>
************************ END OF LESSON *********************
<end>