BPARAMETER command

The BPARAMETER command is used to add a parameter with grips to a dynamic block definition.

Command Access:

Command : BPARAMETER

Command Prompts:

Enter parameter type [Alignment/Base/Point/Linear/Polar/Xy/Rotation/Flip/Visibility/looKup]:

Function Description:
This command could only be used in block editor. The parameter is used to define custom property for block reference. The added parameter must be associated with a certain action to form a dynamic block.

Relative Glossary:
Alignment:
Rotate block reference around a certain point to align it with other objects.

Specify base point : Specify base point, the block reference will rotate around this point to align with another object.

Name : Set "name" custom property of this parameter.

Specify alignment direction : Specify alignment angle of block reference.

Type : Specify alignment type, perpendicular, or tangent.

Base:
Specify a changeable base point for geometry graph in dynamic block reference.

Specify parameter location:
Specify a default base point location for block definition base. This is the location for base grip in block definition.

Point :
Define custom x and y properties of block reference.

Specify parameter location : Specify x and y parameter location in block definition. This is the location for base grip in the block reference.

Name : Specify name.

Label : Specify a custom description label to define parameter location.

Chain : Determine whether the parameter is contained in other associated action selection set or not.

Yes : if one parameter is associated with more than one action and one of those actions is edited; other associated actions will be activated.
No : if one parameter is associated with more than one action and one of those actions is edited; other associated actions will not be activated.

Description : Extend description of custom property for "label".
Palette : Determine the "label" custom property displaying in "property" palette or not when specifying graph in block reference.

Linear：
Specify distance between two key points in block definition.

Specify start point : Specify a key point for parameter in block definition.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Chain : Determine whether the parameter is contained in other associated action selection set or not.

Description : Extend description of custom property for "label".
Base : Specify "base location" property for the parameter.

Start point : Edit the start point of parameter in block reference, the start point of parameter keeps still.
Midpoint : The middle point of parameter keeps still. The start point and endpoint of parameter move the same distance to middle point at the same time..

Palette:
Prompt to display property in Properties palette or not.
Value set:
Limit available value of parameter to specified value in set.

None:
Edit the start point of parameter in block reference, the start point of parameter keeps still.
List:
Specify available value list for block reference. Increment:
Specify parameter increment, maximum, and minimum value in block reference.

Specify label location:
Specify label location.
Enter number of grips:
Specify number of grips displaying in block reference.

0 : display no grip in block reference. Users could edit selected geometry graph in "property" palette or "property query table".
1 : grips display on the endpoint of parameter.
2 : grips only display on the start point and endpoint of parameter.

Polar：
Specify distance and angle between two key points in block definition.

Start point : Specify a point for reference to place grip in block definition.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Chain : Determine whether the parameter is contained in other associated action selection set or not.

Description : Extend description of custom property for “label”.
Palette : Prompt to display property in Properties palette or not.
Value set : Limit available value of parameter to specified value in set.

None : No available value.
List : Specify available value list for block reference.
Increment : Specify parameter increment, maximum, and minimum value in block reference.

Specify endpoint : Specify endpoint to determine distance and angle. The distance and angle are custom properties in “Property” palette.
Specify label location : Specify label location.
Enter number of grips [0/1/2] <2> : Specify number of grips displaying in block reference.

0 : display no grip in block reference. Users could edit selected geometry graph in “property” palette or “property query table”.
1 : grips display on the endpoint of parameter.
2 : grips only display on the start point and endpoint of parameter.

Xy:
Define the x and y distance from base point in block definition.

Start point : Specify the maximum x distance of parameter.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Chain : Determine whether the parameter is contained in other associated action selection set or not.

Yes : if one parameter is associated with more than one action and one of those actions is edited; other associated actions will be activated.
No : if one parameter is associated with more than one action and one of those actions is edited; other associated actions will not be activated.

Description : Extend description of custom property for “label”.
Palette : Prompt to display property in Properties palette or not.
Value set : Limit available value of parameter to specified value in set.

None : No available value.
List : Specify available value list for block reference.
Increment : Specify parameter increment, maximum, and minimum value in block reference.

Specify endpoint : Specify the maximum y distance of parameter.
Enter number of grips [0/1/2/4] <1> : Specify number of grips displaying in block reference.

0 :display no grip in block reference. Users could edit selected geometry graph in “property” palette or “property query table”.
1 : grips display on the endpoint of y distance.
2 : grips display on two endpoints.
4 : grips display on all of four corner points.

Rotation: Define rotation angle of block reference.

Start point : Specify rotation point for selected geometry graph.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Chain : Determine whether the parameter is contained in other associated action selection set or not.

None : No available value.
List : Specify available value list for block reference.
Increment : Specify parameter increment, maximum, and minimum value in block reference.

Specify radius of parameter : Specify distance from parameter base point to grips.
Specify default Rotation Angle : Specify grip position in block reference.
Base angle : Specify base angle value except 0 for parameter grip.
Specify label location : Specify label location.
Enter number of grips [0/1] <1> : Specify number of grips displaying in block reference.

0 :display no grip in block reference. Users could edit selected geometry graph in “property” palette or “property query table”.
1 : grip displays on the endpoint.

Flip : Mirror selected object or the whole block reference by the reflection line.

Base point of reflection line : Specify a reflection line for mirroring objects or the whole block reference.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Description : Extend description of custom property for “label”.
Palette : Prompt to display property in Properties palette or not.
Specify the endpoint projection lines : Specify the endpoint of reflection line.
Specify label location : Specify label location.
Enter number of grips [0/1] <1> : Specify number of grips displaying in block reference.

0 : display no grip in block reference. Users could edit selected geometry graph in “property” palette or “property query table”.
1 : grip displays on the endpoint.

Visibility : Define visible object or invisible object in block definition.

Specify parameter location : Specify grip location. The parameter could be located anywhere in block definition.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Description : Extend description of custom property for “label”.
Palette : Prompt to display property in Properties palette or not.

looKup : Define custom parameter that determined by lookup table.

Specify parameter location : Specify parameter location.
Name : Specify name.
Label : Specify a custom description label to define parameter location.
Description : Extend description of custom property for “label”.
Palette : Prompt to display property in Properties palette or not.

BPARAMETER command

Related tutorial video: