STEPS TAKE PLACE DURING SHEET SETTING IN AUTOCAD:
I. Unit Setting UN ENTER
II. Limit Setting LIMI ENTER
III. Grid Setting SE/DS ENTER

COMMANDS:
As AutoCAD is based on the commands system, so following commands are used in AutoCAD during work on it.
• DRAWING COMMAND:

I. LINE: It is used to create straight line segments.
II. POLYLINE: It is used to create 2D polyline.
III. CIRCLE: It is used to create circle using a centre point and a radius as well as a diameter. It deals with various types of circles such as Centre-Radius, Centre-Diameter, 2-Point, 3-Point, Tangent-Tangent-Radius and Tangent-Tangent-Tangent.
IV. ARC: It is used to create to Arc. It deals with various type of Arc such as 3-Point arc, Start-End-Radius, Centre-Start-End and so on.
V. RECTANGLE: It is used to create polyline rectangle.
VI. POLYGON: It is used to create an equilateral closed polyline.
VII. ELLIPSE: It is used to create ellipse. It deals with various types of ellipse such as Centre Ellipse, Axis-End Ellipse and Elliptical Arc.
VIII. HATCH: It is used to fill enclosed area or selected object with a hatch pattern or fill.
IX. GRADIENT: It is used to fill enclosed area or selected object with a gradient fill.
X. BOUNDARY: It is used to create a region or a polyline from an enclosed area.
XI. SPLINE FIT: It is used to draw a spline with fit points.
XII. SPLINE CV: It is used to draw a spline with control vertices.
XIII. CONSTRUCTION LINE: It is used to create a line of infinite length.
XIV. RAY: It is used to create a line that starts at a point and continues to infinity.
XV. MULTIPLE POINTS: It is used to create multiple point objects.
XVI. DIVIDE: It is used to create every evenly spaced point objects or blocks along the length or perimeter of an object.
XVII. MEASURE: It is used to create point objects or block at measured intervals along the length or perimeter of an object.
XVIII. REGION: It is used to convert an object that encloses an area into a region object.
XIX. WIPEOUT: It is used to create a wipe out object.
XX. 3D POLYLINE: It is used to create 3D polyline.
XXI. HELIX: It is used to create 2D spiral or 3D spring.
XXII. DONUT: It is used to create a filled circle or a wide ring.
XXIII. CLOUD: It is used to create a cloud. It deals with various types of clouds such as Rectangular, Polygonal and Freehand.

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