Basic 2-Dimensional Entities for DRAW Menu in CAD Software Part II

DRAW Menu Contd...

1.4 POLYGON :

At the command prompt, enter polygon


Number of sides <current> : Enter a numerical value OR press enter


Edge / <center of polygon> : Specify a point OR enter


1.5 ELLIPSE :

Ellipse is a curve having major axis and minor axis with a center.


At the command prompt, enter ELLIPSE

Arc / Center / Isocircle / <Axis endpoint 1> : Specify a point OR Enter an Option


1.6 RECTANGLE :

At the command prompt, enter RECTANGLE


First corner : Specify point


Other corner : Specify point


1.7 MULTILINE : 

With the MULTILINE submenu, one can draw set of parallel lines.


1.8 POLYLINE :

Concept of POLYLINE : When one draw with a polyline, one fill as if one is drawing with a LINE. A LINE can be drawn in 3-Dimensional [3D], but the POLYLINE is not. POLYLINE is a collection of single segments or arcs, which is treated as a single object. If one DRAW a POLYLINE, it will have 2 GRIPS only while the LINE will have 3 GRIPS. 


Concept of GRIPS : Small squares and triangles that appear on OBJECTS which an user select. After selecting the GRIP, one edits the OBJECT by dragging it with the pointing device ( mouse etc.) Instead of entering COMMANDS.


Note : 

(1) Polyline drawn figures are drawn as single entity. One can draw LINES, ARCS and CIRCLES using POLYLINES.


At the command prompt, enter PLINE


From point : Specify a point


Current line-width is <current> ARC / Close / Halfwidth / Length / Undo / Width / <Endpoint of line>: Specify a point OR enter an option.


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