Monday, May 20, 2013

Array - Modify

In a design, objects might placed in rectangular, circular pattern or along a path
Array command generate copies of selected objects at fixed intervals of rows and columns, around a center point, along a path

Rectangular Array

Consists of duplicate objects arranged in a pattern of rows and columns
Like light fixture in a ceiling grid

Home tab > Modify panel > Rectangular Array


Select object then press Enter

 
A default 3 rows by 4 columns created associatively with a fixed interval

 

Select the object, additional Array ribbon will display the options for modification
You can change the number of columns and rows, as well as the column and row spacing

This feature allow you to easily increase the number of column and row to check what is the maximum number can fit in to the fixed area

Polar Array

Consists of a pattern of objects copied about a center radius
Like chairs about a round table

Home tab > Modify panel > Polar Array

Select object then specify center point
 

By default 6 objects distributes around the center point evenly
 
 
Select the array object, you can change the number of items, Angle between items, Fill Angle on the ribbon
 
 
If you change the Row count, one more outer row added
 

Replace Item



Options panel > Replace Item

Select replacement objects
 
 
AutoCAD detect the centroid of the source object
Press Enter to accept it
(or you can specify other base point)
 

Select an item in the array to replace


You can select more than one item in the array to replace
Press Enter to terminate the command

Path Array

Consists of a pattern of objects that are copied along a straight, curved or irregular linear path
Like lamp pot along the walkway
 
Home tab > Modify panel > Path Array
 
Select objects then select path curve
 

When select the path curve, select a point closer to the object
 

By default objects array along the path with a fixed measurement


 
Item panel > Item Spacing
You can change the value to adjust the spacing between objects
 
Properties panel > Measure / Divide
 
 
You can change the properties from measure to divide
 


Items panel > Item Count
You can change the number of object evenly arrange on the path
 
Item Spacing: Automatically adjust based on the item count
 

Tangent Direction

Home tab > Modify panel > Path Array
Select object then select path curve
 
 
Properties panel > Tangent Direction
 
 
Specifies 2 points on the base of the object to array
 
 
The object base tangent to the path

No comments:

Post a Comment