Block 图块

A collection of objects grouped together into a single object

A object form by individual lines, arcs, and polylines, and repeating use in same drawing or other drawing, it's good to convert it to block

Block Behave

1. Retain Original Properties

Create blocks on any layer other than "0" layer

Do not use ByBlock or ByLayer for the properties

Create layer: Screw_T

Color:           Blue

Linetype:      Continuos

Lineweight:   0.3

Insert layer: Assembly

Color:          Green

Linetype:     Dashed

Lineweight:  Default

2. Inherit Properties from Current Layer

Create blocks on "0" layer

Use ByLayer for the properties

Create layer: 0 layer

Color:           Black

Linetype:      Continuos

Lineweight:   Default

Insert Layer: Assembly

Color:           Green

Linetype:      Dashed

Lineweight:   Default

3. Inherit Properties from Current Property Settings

Create blocks on any layer

 

Use ByBlock for the properties

Create layer: Screw_T

Color:           Black     

Linetype:      Continuos

Lineweight:   0.3

Insert layer: Assembly 

Color:          Green

Linetype:     Dashed

Lineweight:  Default