auto cad project

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INTRODUCTION

PROJECT Explanation of

commands used in

AUTOCAD.


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NAME MANASVI GHERA

ROLLNO- 59/08

TRADE- CIVIL (FINALYEAR)

SUBMITTED TO-

MR VIKASH SHARMA,

MCP COLLEGE, JALANDHAR

MR AMIT KUMAR


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Types Of commands can be used while doing any

Auto cad work named as:-

1. Limits

2. Units

3. Dimension Style

4. Points

5. Line6. Circle

7. Polygon

8. Hexagonal

9. Octagonal


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10. Offset

11. Trim

12. Text

13. Extent

14. Array

15. Dimension Style

16. Fillet Command

17. Erase

1. Line commandCommands

CUTCLIP Copies objects to the Clipboard and removes the objects from the drawing

ERASE Removes objects from a drawing

OOPS Restores erased objects

PURGE Removes unused named items, such as block definitions and layers, from the drawing

REDRAW Refreshes the display in the current viewport

REDRAWALL Refreshes the display in all viewports

REGEN Regenerates the entire drawing from the current viewport

UNDO Reverses the effect of commands

Click Draw menu Line.

1. Specify the start point.

You can use the pointing device or enter coordinate values on the command line.

2. Complete the first line segment by specifying the endpoint.

To undo the previous line segment during the LINE command, enteru or click Undo on the

toolbar.3. Specify the endpoints of any additional line segments.


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4. Press ENTER to end orc to close a series of line segments.

To start a new line at the endpoint of the last line drawn, start the LINE command again andpress ENTER at the Specify Start Point prompt.

LIMITS COMMNAD------

Sets and controls the limits of the grid display in the current Model or layout tab

Format menu: Drawing Limits

Command entry: limits (or 'limits for transparent use)

Specify lower left corner or [ON/OFF] : Specify a point, enter on or off, or press

ENTER

Lower-Left Corner

Specifies the lower-left corner for the grid limits.

Specify upper right corner : Specify a point or press ENTER

On

Turns on limits checking. When limits checking is on, you cannot enter points outside the grid

limits. Because limits checking tests only points that you enter, portions of objects such as

circles can extend outside the grid limits.

Off

Turns off limits checking but maintains the current values for the next time you turn on limits

checking.

DIMEN Styles toolbar:

Format menu: Dimension Style


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Dimension menu: Style

Command entry: dimstyle

SION STYLE :- CONCEPT

You can create dimensions for a variety of object types in many orientations. The basic types of

dimensioning are

Linear

Radial (radius and diameter)

Angular

Ordinate Arc Length

Linear dimensions can be horizontal, vertical, aligned, rotated, baseline, or continued (chained).

Some examples are shown in the illustration.

PROCEDURES To create a dimension

1. Create a layer designated for dimensions and make it the current layer.2. Near the bottom-left corner of the application window, click a layout tab.

3. Click the Dimension menu and select a dimension command.

4. Follow the command prompts.

Command entry: DIMLINEAR, DIMRADIUS, DIMANGULAR

COMMAND

CommandsDIMANGULAR Creates an angular dimension

DIMARC Creates an arc length dimension

DIMDIAMETER Creates diameter dimensions for circles and arcs

DIMEDIT Edits dimension text and extension lines on dimension objects

DIMJOGGED Creates jogged radius dimensions

DIMLINEAR Creates linear dimensions

DIMORDINATE Creates ordinate point dimensions

DIMRADIUS Creates radial dimensions for circles and arcs

DIMREASSOCIAT

E Associates selected dimensions to geometric objects

DIMSTYLE Creates and modifies dimension styles


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DIMTEDIT Moves and rotates dimension text

PROPERTIES

Controls properties of existing objects

Quickly creates a dimension

POINT COMMAND:-

CONCEPTS:-

Point objects are useful as nodes or reference geometry for object snaps andrelative offsets.

You can set the style of the points and their size relative to the screen or inabsolute units. Changing the style of points

Makes them more visible and easier to differentiate from grid dots

Affects the display of all point objects in the drawing

Requires usingREGENto make the change visible

PROCEDURES:-

1. To set point style and size

2. To create a point object

1.1To set point style and size

To set point style and size

1. Click Format menu Point Style.

2. In the Point Style dialog box, select a point style.

3. In the Point Size box, specify a size, either relative to thescreen or in absolute units.

4. Click OK.

Command entry: DDPTYPE

1.2 . To create a point object

To create a point object

1. Click Draw menu Point Single Point.

2. Specify the point location.

You can snap to a point using the Node object snap.


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Draw toolbar

Command entry: POINT

UNITS OF MEASUREMENT:-

CONCEPTS:-

Before you start to draw, you decide on the units of measurement to be used in the drawing, and set theformat, precision, and other conventions to be used in coordinates and distances.

Determine the Units of Measurement

Before you start to draw, you must decide what one drawing unit represents based on what youplan to draw. You can convert a drawing between systems of measurement by scaling it.

Set Linear Unit Conventions

Before you start to draw, you set the format and the number of decimal places to be used when youenter and display linear units.

Set Angular Unit Conventions

Angle conventions include the position of angle 0 and the direction of measurement: clockwise orcounterclockwise. You also set the format and the number of decimal places.

1.1Determine the Units of Measurement

Every object you create is measured in drawing units. Before you start to draw, you must decide whatone drawing unit will represent based on what you plan to draw. Then you create your drawing at actual

size with that convention. For example, a distance of one drawing unit typically represents onemillimeter, one centimeter, one inch, or one foot in real-world units.

Convert Drawing Units

If you start a drawing in one system of measurement (imperial or metric) and then want to switch to theother system, use SCALE to scale the model geometry by the appropriate conversion factor to obtaincorrect distances and dimensions.

For example, to convert a drawing created in inches to centimeters, you scale the model geometry by afactor of 2.54. To convert from centimeters to inches, the scale factor is 1/2.54 or about 0.3937.

Set Linear Unit Conventions


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Before you start to draw, you set the format and the number of decimal places to be used when youenter and display linear units.

You can choose from several common conventions to represent the display style and the precision ofdistances and coordinates. Depending on what you specify, you can enter and display in decimalformat, fractional format, or other notation. These settings affect

The Properties palette

Dynamic input

The LIST command

The ID command

The coordinate display on the status bar

Several dialog boxes that display coordinates

You can set the unit type and precision in the Drawing Units dialog box, the Quick Setup wizard, or theAdvanced Setup wizard.

Understand Rounding and Precision

When you specify the display precision of units, the values for coordinates and distances are roundedoff. However, the internal precision of coordinates and distances is always maintained regardless of thedisplay precision.

For example, if you set the display precision of decimal-format units to 1 (or 0.0), the display ofcoordinates is rounded to one place after the decimal point. Thus, the coordinates 0.000,1.375 aredisplayed as 0.0,1.4, but the internal precision is still maintained.

Enter Distances in Imperial Architectural Format

In architectural format, to enter feet and inches, indicate feet using the prime symbol ('), for example,72'3. You don't need to enter quotation marks () to specify inches.

Set Angular Unit Conventions

Angle conventions include the position of angle 0 and the direction of measurement: clockwise orcounterclockwise. You also set the format and the number of decimal places.

You can choose from several common conventions to represent angles in a drawing. You can specifythat positive values of angles are measured either clockwise or counterclockwise, and angle 0 can beset to any direction (usually East or North). You can enter angles using grads, radians, or surveyor'sunits or using degrees, minutes, and seconds.

Work with Surveyor's Angles

If you use surveyor's angles when specifying polar coordinates, indicate whether the surveyor's anglesare in the north, south, east, or west direction. For example, to enter a coordinate relative to the currentcoordinate for a property line that is 72 feet, 8 inches long with a bearing of 45 degrees north, 20minutes, 6 seconds east, enter

@72'8"


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CIRCLE

CONCEPT:-

You can create circles in several ways. The default method is to specify the center and the radius.

Three other ways to draw a circle are shown in the illustration.

Draw a Circle Tangent to Other Objects

The tangent point is a point where an object touches another object without intersecting it. To create acircle that is tangent to other objects, select the objects and then specify the radius of the circle. In theillustrations below, the bold circle is the one being drawn, and points 1 and 2 select the objects to whichit is tangent.

To create a circle tangent at three points, set running object snaps (OSNAP) to Tangent and use thethree-point method to create the circle

PROCEDURES:-

To draw a circle by specifying a center point and radius or diameter

To create a circle tangent to two objects

1. To draw a circle by specifying a center point and radius or diameter

To draw a circle by specifying a center point and radius or diameter


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1. Click Draw menu Circle Center, Radius (or Center, Diameter).

2. Specify the center point.

3. Specify theradius or diameter.

toolbar

Commandentry: CIRCLE

To create a circle tangent to two objects

1. Click Draw menu Circle Tan, Tan, Radius.

The command starts Tangent object snap mode.

2. Select the first object to draw the circle tangent to.

3. Select the second object to draw the circle tangent to.

4. Specify the radius of the circle.

Draw toolbar

POLYGON:-

Concepts:-

You can create rectangles and regular polygons quickly. Creating polygons is a simple way to drawequilateral triangles, squares, pentagons, hexagons, and so on.

Two commands, RECTANG and POLYGON, provide an efficient method to create rectangles andregular polygons such as equilateral triangles, squares, pentagons, hexagons, and so on. If

Commands

CIRCLE Creates a circle

OFFSET Creates concentric circles, parallel lines, and parallel curves

System Variables

CIRCLERAD Sets the default circle radius. A zero indicates no default

WHIPARC Controls whether the display of circles and arcs is smooth


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You can create rectangles and regular polygons quickly. Creating polygons is a simple way to drawequilateral triangles, squares, pentagons, hexagons, and so on.

Two commands, RECTANG and POLYGON, provide an efficient method to create rectangles andregular polygons such as equilateral triangles, squares, pentagons, hexagons, and so on. If necessary,you can useEXPLODE to convert the resulting polyline object into lines.

Draw Rectangles

Use RECTANG to create closed polylines in a rectangular shape. You can specify the length, width,area, and rotation parameters. You can also control the type of corners on the rectanglefillet,chamfer, or square.

Draw Regular Polygons

Use POLYGONto create closed polylines with between 3 and 1,024 equal-length sides. The followingillustrations show polygons created using three methods. In each case, two points are specified.

Procedures:-

To draw a circumscribed polygon

To draw a polygon by specifying one edge

To draw an inscribed polygon

To draw a circumscribed polygon

1. Click Draw menu Polygon.

2. On the command line, enter the number of sides.

3. Specify the center of the polygon (1).

4. Enterc to specify a polygon circumscribed about a circle.

5. Enter the radius length (2).

Draw toolbar

Command entry: POLYGON


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To draw a polygon by specifying one edge



3. Entere (Edge).

4. Specify the start point for one polygon segment.

5. Specify the endpoint of the polygon segment.

Command entry: POLYGON

To draw an inscribed polygon



3. Specify the center of the polygon.

4. Enteri to specify a polygon inscribed within a circle of specified points.5. Enter the radius length

6. Command entry: POLYGON

Commands

BOUNDARY Creates a region or a polyline from an enclosed area

EXPLODE Breaks a compound object into its component objects

POLYGON Creates an equilateral closed polyline

RECTANG Draws a rectangular polyline

System Variables

FILLMODE Specifies whether hatches and fills, two-dimensional solids, and wide polylines are filled in

HPBOUND Controls the object type created by the BHATCH and BOUNDARY commands

PLINEWID Stores the default polyline width

Command entry: CIRCLE


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POLYSIDES Sets the default number of sides for the POLYGON command

OFFSETCONCEPTS:-

OFFSET creates a new object whose shape parallels the shape of a selected object. Offsettinga circle or an arc creates a larger or smaller circle or arc, depending on which side you specify forthe offset.

A highly effective drawing technique is to offset objects and then trim or extend their ends.

You can offset

Lines

Arcs

Circles

Ellipses and elliptical arcs (resulting in an oval-shaped spline)

2D polylines

Construction lines (xlines) and rays

Splines

Special Cases for Offset Polylines and Splines

2D polylines and splines are trimmed automatically when the offset distance is larger than canotherwise be accommodated.

Closed 2D polylines that are offset to create larger polylines result in potential gaps between


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segments. The OFFSETGAPTYPE system variable controls how these potential gaps areclosed.

PROCEDURES:-

To offset an object by specifying a distance

To offset an object through a point

To offset an object by specifying a distance

1. Click Modify menu Offset.

2. Specify the offset distance.

You can enter a value or use the pointing device.

3. Select the object to offset.

4. Specify a point on the side where you want to place the new objects.

5. Select another object to offset, or press ENTER to end the command.

Modify toolbar

Command entry: OFFSET

To offset an object through a point

1. Click Modify menu Offset.

2. Entert (Through).

3. Select the object to offset.

4. Specify the through point.

5. Select another object to offset, or press ENTER to end the command.

COMMANDS:-


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Commands

OFFSET Creates concentric circles, parallel lines, and parallelcurves

System Variables

OFFSETDIST Sets the default offset distance

OFFSETGAPTYPE Controls how potential gaps between segments aretreated when closed polylines are offset

TRIM:-

You can shorten or lengthen objects to meet the edges of other objects.

This means you can first create an object such as a line and then later adjust it to fit exactlybetween other objects.

Objects you select as cutting edges or boundary edges are not required to intersect the objectbeing trimmed. You can trim or extend an object to a projected edge or to an extrapolatedintersection; that is, where the objects would intersect if they were extended.

If you do not specify a boundary and press ENTER at the Select Objects prompt, all displayedobjects become potential boundaries.

Note To select cutting edges or boundary edges that include blocks, you can use only the singleselection, Crossing, Fence, and Select All options.

Trim Objects

You can trim objects so that they end precisely at boundary edges defined by other objects.

For example, you can clean up the intersection of two walls smoothly by trimming.

An object can be one of the cutting edges and one of the objects being trimmed. For example, inthe illustrated light fixture, the circle is a cutting edge for the construction lines and is also beingtrimmed.


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When you trim several objects, the different selection methods can help you choose the currentcutting edges and objects to trim. In the following example, the cutting edges are selected usingcrossing selection.

The following example uses the fence selection method to select a series of objects for trimming.

You can trim objects to their nearest intersection with other objects. Instead of selecting cuttingedges, you press ENTER. Then, when you select the objects to trim, the nearest displayedobjects act as cutting edges. In this example, the walls are trimmed so that they intersectsmoothly.

You can extend objects without leaving the TRIMcommand. Hold down SHIFT and select theobjects to be extended.

Extend Objects


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Extending operates the same way as trimming. You can extend objects so they end precisely atboundary edges defined by other objects. In this example, you extend the lines precisely to acircle, which is the boundary edge.

You can trim objects without leaving the EXTEND command. Hold down SHIFT and select theobjects to be trimmed.

Trim and Extend Wide Polylines

2D wide polylines trim and extend at their centerlines. The ends of wide polylines are alwayssquare. Trimming a wide polyline at an angle causes portions of the end to extend beyond thecutting edge

If you trim or extend a tapered 2D polyline segment, the width of the extended end is corrected tocontinue the original taper to the new endpoint. If this correction gives the segment a negativeending width, the ending width is forced to 0.

Trim and Extend Spline-Fit Polylines

Trimming a spline-fit polyline removes the curve-fit information and changes the spline-fitsegments into ordinary polyline segments.

Extending a spline-fit polyline adds a new vertex to the control frame for the polyline.

Trim or Extend in 3D

You can trim or extend an object to any other object in 3D space, regardless of whether theobjects are on the same plane or parallel to the cutting or boundary edges. In the TRIM andEXTEND commands, use the Project and Edge options to select one of three projections fortrimming or extending:

TheXYplane of the current UCS

The plane of the current view

True 3D, which is not a projection

PROCEDURES:-


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To extend an object

To trim an object

To extend objects in 3D wireframe models

To trim in 3D using the current view plane

To trim objects in 3D wireframe models

To extend an object

1. Click Modify menu Extend.

2. Select the objects to serve as boundary edges.

To select all displayed objects as potential boundary edges, press ENTER withoutselecting any objects.

3. Select the objects to extend.

Modify toolbar

Command entry: EXTEND

To trim an object

1. Click Modify menu Trim.

2. Select the objects to serve as cutting edges.

To select all displayed objects as potential cutting edges, press ENTER without selecting

any objects.

3. Select the objects to trim.

Modify toolbar

Command entry: TRIM

To extend objects in 3D wireframe models

1. Click Modify menu Extend.

2. Select the boundary edge for extending (1).

3. Entere (Edge).

4. Entere (Extend).

5. Enterp (Project).

6. Enteru (UCS).

7. Select the object to extend (2).


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To trim in 3D using the current view plane


2. Select the cutting edge for trimming (1).


4. Enterv (View).

5. Select the object to trim (2).

Command entry: TRIM

To trim objects in 3D wireframe models


2. Select the cutting edges to use for trimming (1 and 2).


4. Entern (None).

5. Select the object to trim (3 and 4).


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Command entry: TRIM

Commands

BREAK Breaks the selected object between two points

EXTEND Extends an object to meet another object

JOIN Joins objects to form a single, unbroken object

LENGTHEN Changes the length of objects and the included angle of arcs

PROPERTIES Controls properties of existing objects

TRIM Trims objects at a cutting edge defined by other objects

System Variables

EDGEMODE Controls how the TRIM and EXTEND commands determinecutting and boundary edges

PROJMODE Sets the current Projection mode for trimming or extending

ARRAY:-

CONCEPTS

You can create copies of objects in a rectangular or polar (circular) pattern called an array.

For rectangular arrays, you control the number of rows and columns and the distance betweeneach. For polar arrays, you control the number of copies of the object and whether the copies are

rotated. To create many regularly spaced objects, arraying is faster than copying.

Create Rectangular Arrays


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A rectangular array is built along a baseline defined by the current snap rotation angle. This angleis zero by default, so the rows and columns of a rectangular array are orthogonal with respect to

theXand Yaxes. The default angle 0 direction setting can be changed inUNITS.

Create Polar Arrays

When you create a polar array, the array is drawn counterclockwise or clockwise, depending on

whether you enter a positive or a negative value for the angle to fill.

The radius of the array is determined by the distance from the specified center point to areference or base point on the last selected object. You can use the default reference point(usually an arbitrary point that coincides with a snap point), or you can specify a new base pointto be used as the reference point.

Array in 3D

With 3DARRAY, you can create a rectangular array or a polar array of objects in 3D. Inaddition to specifying the number of columns (Xdirection) and rows (Ydirection), you also specifythe number of levels (Zdirection).

Limit the Size of Arrays

If you specify a very large number of rows and columns for an array, it may take a long time tocreate the copies. By default, the number of array elements that can be generated by onecommand is limited to approximately 100,000. This limit is controlled by the MaxArray setting inthe registry.

You can change the limit by setting the MaxArray system registry variable using (setenvMaxArray n) where n is a number between 100 and 10000000 (ten million).

PROCEDURES:-

To create a rectangular array


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To create a polar array

To create a 3D rectangular array of objects

To create a 3D polar array of objects

To create a rectangular array

1. Click Modify menu Array.

2. In the Array dialog box, select Rectangular Array.

3. Click Select Objects.

The Array dialog box closes. You are prompted for object selection.

4. Select the objects to be arrayed and press ENTER.

5. In the Rows and Columns boxes, enter the number of rows and columns in thearray.

6. Specify the horizontal and vertical spacing (offsets) between objects by usingone of the following methods:

In the Row Offset and Column Offset boxes, enter the distance between rows

and between columns. Adding a plus sign (+) or a minus sign (-) determinesdirection.

Click the Pick Both Offsets button to use the pointing device to specify the

diagonal corners of a cell in the array. The cell determines the vertical and horizontalspacing of the rows and columns.

Click the Pick Row Offset or Pick Column Offset button to use the pointing

device to specify the horizontal and vertical spacing.

The example box displays the result.

To change the rotation angle of the array, enter the new angle next to Angle ofArray.

The default angle 0 direction setting can also be changed in UNITS.

Click OK to create the array.

Modify toolbar

Command entry: ARRAY

To create a polar array

1. Click Modify menu Array.

2. In the Array dialog box, select Polar Array.

3. Next to Center Point, do one of the following:

Enter anXvalue and a Yvalue for the center point of the polar array.

Click the Pick Center Point button. The Array dialog box closes and

you are prompted for object selection. Use the pointing device to specify thecenter point of the polar array.

Click Select Objects.

The Array dialog box closes and you are prompted for object selection.

Select the objects to be arrayed.

In the Method box, select one of the following methods:

Total Number of Items & Angle to Fill Total Number of Items & Angle Between Items


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Angle to Fill & Angle Between Items

Enter the number of items (including the original object), if available.

Use one of the following methods:

Enter the angle to fill and angle between items, if available. Angle to

Fill specifies the distance to fill around the circumference of the array. AngleBetween Items specifies the distance between each item.

Click the Pick Angle to Fill button and the Pick Angle Between Items

button. Use the pointing device to specify the angle to fill and the angle betweenitems.

The example box displays the result.

You can set any of the following options:

To rotate the objects as they are arrayed, select Rotate Items As

Copied. The example area displays the result.

To specify theX,Ybase point, select More, clear the Set to Object's

Default option and enter values in theXand Yboxes, or click the Pick Base Pointbutton and use the pointing device to specify the point.

Click OK to create the array.

To create a 3D rectangular array of objects

1. Click Modify menu 3D Operations 3D Array.

2. Select the object to array (1).

3. Specify Rectangular.

4. Enter the number of rows.

5. Enter the number of columns.

6. Enter the number of levels.7. Specify the distance between rows.

8. Specify the distance between columns.

9. Specify the distance between levels.

Command entry: 3DARRAY

To create a 3D polar array of objects

1. Click Modify menu 3D Operations 3D Array.

2. Select the object to array (1).

3. Specify Polar.


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4. Enter the number of items to array.

5. Specify the angle that the arrayed objects are to fill.

6. Press ENTER to rotate the objects as they are arrayed, or entern to retain theirorientation.

7. Specify the start point and endpoint of the axis about which the objects are tobe rotated (2 and 3).

Commands

3DARRAY Creates a three-dimensional array

ARRAY Creates multiple copies of objects in a pattern

DSETTINGS

Sets grid and snap, polar and object snap tracking, object snapmodes, and Dynamic Input

UCS Manages user coordinate systems

UNITS Controls coordinate and angle display formats and precision

System Variables

ANGBASE Sets the base angle to 0 with respect to the current UCS

ANGDIR Sets the direction of positive angles

Fillet :-

A fillet connects two objects with an arc that is tangent to the objects and has aspecified radius.

An inside corner is called a fillet and an outside corner is called a round; you

can create both using theFILLET command.

You can fillet

Arcs

Circles

Ellipses and elliptical arcs

Lines

Polylines


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Rays

Splines

Xlines

3D solids

FILLET can be used to round all corners on a polyline using a singlecommand.

Note Filleting a hatch boundary that was defined from line segments removeshatch associativity. If the hatch boundary was defined from a polyline,associativity is maintained.

If both objects being filleted are on the same layer, the fillet arc is created onthat layer. Otherwise, the fillet arc is created on the current layer. The layeraffects object properties including color and linetype.

Use the Multiple option to fillet more than one set of objects without leaving thecommand.

Set the Fillet Radius

The fillet radius is the radius of the arc that connects filleted objects. Changingthe fillet radius affects subsequent fillets. If you set the fillet radius to 0, filletedobjects are trimmed or extended until they intersect, but no arc is created.

You can hold down SHIFT while selecting the objects to override the currentfillet radius with a value of 0.

Trim and Extend Filleted Objects

You can use the Trim option to specify whether the selected objects aretrimmed or extended to the endpoints of the resulting arc or left unchanged.

Control the Location of the Fillet

Depending on the locations you specify, more than one possible fillet can existbetween the selected objects. Compare the selection locations and resultingfillets in the illustrations.


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Fillet Line and Polyline Combinations

To fillet lines with polylines, each line or its extension must intersect one of thepolyline line segments. If the Trim option is on, the filleted objects and the filletarc join to form a single new polyline.

Fillet an Entire Polyline

You can fillet an entire polyline or remove fillets from an entire polyline.

If you set a nonzero fillet radius, FILLET inserts fillet arcs at the vertex of eachpolyline segment that is long enough to accommodate the fillet radius.

If two polyline line segments converge as they approach an arc segment thatseparates them, FILLET removes the arc segment and replaces it with a filletarc.


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If you set the fillet radius to 0, no fillet arcs are inserted. If two polyline linesegments are separated by one arc segment, FILLET removes that arc andextends the lines until they intersect.

Fillet Parallel Lines

You can fillet parallel lines, xlines, and rays. The current fillet radiustemporarily adjusts to create an arc that is tangent to both objects and locatedin the plane common to both objects.

The first selected object must be a line or a ray, but the second object can be aline, an xline, or a ray. The fillet arc connects as shown in the illustration.

Fillet Objects with Non-Zero Thickness in 3D

You can fillet coplanar objects with extrusion directions not parallel to the Zaxis of the current UCS. FILLET determines the extrusion direction for the filletarc in 3D space closest to the direction of the Zaxis of the current UCS.

Procedures:-

To set the fillet radius

To fillet two line segments

To fillet without trimming

To fillet an entire polyline

To fillet multiple sets of objects

To set the fillet radius

1. Click Modify menu Fillet.

2. Enterr(Radius).

3. Enter the fillet radius

4. Select the objects to fillet.


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Modify toolbar

Command entry: FILLET

To fillet two line segments1. Click Modify menu Fillet.

2. Select the first line.

3. Select the second line

To fillet without trimming1. Click Modify menu Fillet.

2. If necessary, entert (Trim). Entern (No Trim).3. Select the objects to fillet.

To fillet an entire polyline1. Click Modify menu Fillet.

2. Enterp (Polyline).

3. Select the polyline

To fillet multiple sets of objects1. Click Modify menu Fillet.

2. Enterm (Multiple).

The main prompt is displayed.

3. Select the first line, or enter an option and complete theprompts for that option. Select the first line.

4. Select the second line.

The main prompt is displayed again.

Commands

FILLET Rounds andfillets theedges ofobjects

System Variables

FILLETRAD

Erase:Concepts:-

Stores thecurrent filletradius


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You can erase objects from your drawing using severalmethods.

Erase them with ERASE.

Select them and then cut them to the Clipboardwith CTRL+X.

Select them and press DELETE.

You can restore accidentally erased objects using

UNDO. The OOPS command restores all objectsdeleted by the most recent use of ERASE, BLOCK, orWBLOCK.

Clean Up the Display

You can remove the plus-shaped markers called blips

and stray pixels that may be left over from some editingoperations from the display area.

To remove blips, use REDRAW.

To remove stray pixels, useREGEN.

Remove Unused Definitions and Styles

You can remove unused named objects, including blockdefinitions, dimension styles, layers, linetypes, and text

styles with PURGE

Procedures:-To erase an object

To restore the last erased object

To cut objects to the Clipboard

To remove plus-shaped marker blips

To purge an unused linetype

To erase an object

1. Click Modify menu Erase.

2. At the Select Objects prompt, use aselection method to select the objects to beerased or enter an option:

EnterL (Last) to erase the last object

drawn.

Enterp (Previous) to erase the last

selection set.

Enterall to erase all objects from the

drawing.

Enter? to see a list of all selection

methods.

Press ENTER to end the command.


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Modify toolbar

Command entry: ERASE

To restore the last erased object

At the Command prompt, enteroops.

The last objects that were removed by ERASE, BLOCK, or WBLOCK are

restored.

Command entry: OOPS

To cut objects to the Clipboard

1. Select the objects you want to cut.

2. Click Edit menu Cut. You can also press CTRL+X.

The objects are available to be pasted into other Windowsapplications.

Command entry: CUTCLIP

To remove plus-shaped marker blips

Click View menu Redraw.

Command entry: REDRAW

Concept

s

Procedur

es

Comman

ds

To purge an unused linetype

1. Click File menu Drawing Utilities Purge.

The Purge dialog box displays a tree view of object types with itemsthat can be purged.

2. To purge unreferenced linetypes, use one of the followingmethods:

To purge all unreferenced linetypes, select Linetypes.

To purge specific linetypes, double-click Linetypes to expand

the tree view. Then select the linetypes to be purged.

If the item you want to purge is not listed, select View Items You


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Cannot Purge.

You are prompted to confirm each item in the list. If you donot want to confirm each purge, clear the Confirm Each Item to BePurged option.

Click Purge.

To confirm the purging of each item, respond to the prompt bychoosing Yes or No, or Yes to All if more than one item is selected.

Click Close.

Command entry: PURGE

Commands

Commands

CUTCLIP Copies objects to the Clipboard and removesthe objects from the drawing

ERASE Removes objects from a drawing

OOPS Restores erased objects

PURGE Removes unused named items, such as block

definitions and layers, from the drawing

REDRAW Refreshes the display in the current viewport

REDRAWALL Refreshes the display in all viewports

REGEN Regenerates the entire drawing from thecurrent viewport

UNDO Reverses the effect of commands


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auto cad project

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