Lecture 3 -Manipulating 2D Objects.pptx

7/30/2019 Lecture 3 -Manipulating 2D Objects.pptx

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MANIPULATING 2D

OBJECTS

BDA 10102

COMPUTER AIDED DESIGN

Lecturers name:1. Ashari bin Kasmin

2. Abd Khalil bin Abd Rahim

3. Muhammad Aimullah bin Abdullah

4. Helmy bin Mustafa El Bakri5. Muhammad bin Zulkipli


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Use different selection methods to select objects in the drawing.

Move objects in the drawing using object snaps, object tracking, andcoordinate entry for precise placement.

Use the Copy command or grips to create new objects from existingobjects in the drawing.

Change the angle of objects in the drawing by using the Rotate commandor with grips.

Create mirrored images of objects in the drawing using the Mirrorcommand or with grips.

Use the Array command to create rectangular and circular patterns ofobjects in the drawing.

Change the size of objects in the drawing.

Use grips to edit objects and display geometric information.

Objectives


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An object or group of objects that you select is alsocalled a selection set. There are a variety of methods forselecting, adding, and removing objects within this

selection set.

If you want to select an individual object, you simply

click it. You can continue to select additional objects as

needed. As each new object is added to the selection

set, the object's appearance changes to dashed lines.

In response to the Select Objects prompt, there are

many methods you can use to select several objects at

the same time.

Select Objects in the Drawing


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Used to reposition an object or group of objects to a newlocation

Command: M

Hint: Select base point either on the original object or on areference point to make the move points easier to locate

Modify Commands: Move


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Used to duplicate an object or group of objects

Command: CP

Hint: Select base point either on the original object or on areference point to make the copy easier to locate

Modify Commands: Copy


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Used to change the orientation of an object or group of objectsby identifying a base point and a rotation angle that completesthe new orientation

Command: RO

Modify Commands: Rotate


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Used to create a mirrored copy of an object or group ofobjects

Command: MI

Mirror line is created by selecting 2 points

Modify Commands: Mirror


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The ARRAY command allows you to arrange multiple copies ofan object or group of objects in a rectangular pattern

Example of a rectangular array using 2 rows, 2 columns, andspacing of 100

Modify Commands: Rectangular Arrays


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The ARRAY command allows you to arrange multiple copies ofan object or group of objects in a circular or polar pattern

Example of a polar array with 4 items, 360 degree angle, androtated objects

Modify Commands: Polar Arrays


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Used to change the overall size of an object Command: SC

Scale of 0.50 is 50% of original size

Scale of 2 is 100% bigger than original size

Modify Commands: Scale


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Used to partially delete an object or group of objects basedon a cutting edge

Command: TR

Modify Commands: Trim


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Used to extend objects to a specified boundary edge

Command: EX

Modify Commands: Extend


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Used for creating one object parallel to another Copies objects at preset distances Use to layout centerlines and for beginning drawings

Command: OF

Modify Commands: Offset


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Used to separate an grouped object back into its individualparts

Used on blocks or cut and paste objects to get them back to theoriginal entity configuration

Command: X

Modify Commands: Explode


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END

OF

LESSON 3

Lecture 3 -Manipulating 2D Objects.pptx

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