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lessn039.msg
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1996-11-15
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74 lines
*********************** DISPLAY LEVEL *******************
A DRAWING IS MADE FROM MANY GROUPS. IN THE CONSTRUCTION AREA
A NUMBER OF GEOMETRIC SHAPES ARE DRAWN AND THEN USING ONE OF
THE FUNCTIONS OF "CREATE GROUPS (BLOCKS)" IS USED TO MAKE
A GROUP FROM THE COLLECTION OF GEOMETRIC SHAPES. EACH GROUP
IS ASSIGNED A LEVEL. LEVELS ARE SIMILAR IN FUNCTION TO THE
OVERLAY DRAFTING (PIN-BAR SYSTEM).
<end>
THERE ARE 256 GROUPS AVAILABLE PER DRAWING. A GROUP IS ON A
LEVEL. ALL COPIES OF THAT GROUP ARE ON THE SAME LEVEL.
UPON CREATING A GROUP THE CURRENT LEVEL (ON THE STATUS LINE
ABOVE) IS AUTOMAICALLY ASSIGNED TO THAT GROUP.
TO BETTER ILLUSTRATE THIS CONCEPT, LET US DRAW A RECTANGLE
AND A WALL THICKNESS CREATED WITH THE "OFFSET" FUNCTION.
<end>
THE WALLS HAVE BEEN TRANSFERRED TO LEVEL 1 AS INDICATED BY
THE LEVEL BAR ABOVE. THE GROUP APPEARS DOTTED.
<end>
TO TRANSFER THE TABLE & CHAIR TO LEVEL 2 FIRST CHANGE THE
LEVEL BY SELECTING THE LEVEL BAR & ENTERING "2".
<end>
UPON TRANSFER OF THIS COLLECTION OF VECTORS THEY ARE MADE
INTO A GROUP & PLACED ON LEVEL 2.
IMPORTANT: ANY COPIES MADE OF THESE GROUPS WILL ALSO BE
ON LEVEL 2.
<end>
TO TRANSFER THE DESK LAMP TO LEVEL 3 FIRST SET THE CURRENT
LEVEL TO 3.
<end>
NOW GROUP IT WITH A COMPLETELY CONTAINED WINDOW.
<end>
PRESS "5" TO GO TO THE GROUPS AREA. NOTICE THE GROUPS
APPEAR SOLID WHEN WE ARE IN THE GROUPS AREA.
TO GO TO THE GROUPS AREA PRESS "5".
<end>
WE ARE NOW IN THE GROUPS AREA.
PRESS "1" FOR THE MAIN MENU.
SELECT "DISPLAY LEVELS" FROM THE MAIN MENU TO DISPLAY THE
MATRIX OF LEVELS.
<end>
IN THIS MATRIX, LEVELS 1,2 & 3 CONTAIN AT LEAST ONE GROUP.
THEREFORE THEIR NUMBERS ARE DISPLAYED A IN DIFFERENT COLOR.
EACH LEVEL HAS A GREEN AND A RED COMPONENT. THE GREEN & RED
COMPONENTS OF EACH LEVEL CAN BE TURNED ON & OFF. TO TURN
ON/OFF A LEVEL CLICK ON THE GREEN COMPONET & TURN ON/OFF
THE EDITABILITY OF A LEVEL CLICK ON THE RED COMPONENT.
<end>
TO PROPERLY TURN OFF A LEVEL, CLICK ON BOTH THE GREEN & THE
RED COMPONENTS OF THAT LEVEL THUS REMOVING THAT LEVEL BOTH
FROM DISPLAY AND MAKING THAT LEVEL UNAVAILABLE TO THE EDIT
FUNCTION.
AT THIS TIME LET US MAKE SOME COPIES OF THE FURNITURE BELOW.
<end>
TURN OFF LEVEL 3 TO DISABLE BOTH THE DISPLAY & THE EDIT
OF THE DESK LAMP.
<end>
IMPORTANT: THE CURRENT LEVEL CANNOT BE TURNED OFF.
TO TURN OFF THE CURRENT LEVEL, FIRST MAKE ANOTHER
LEVEL CURRENT.
TO TURN OFF LEVEL 3, SET THE CURRENT LEVEL TO 1.
<end>
NOW LEVEL 3 CAN BE TURNED OFF.
<end>
LET US LEAVE ALL OTHER LEVELS ON.
<end>
LEVEL 3 (THE DESK LAMP) IS TURNED OFF. NOW MAKE A COPY OF
THE DESK LAMP AND SEE THE RUSULT.
<end>
TURN ON LEVEL 3 & NOTICE THE RESULTS.
<end>
********************** END OF LESSON *******************
<end>