MGED CMD brep

brep

Syntax

brep object info [S|F|T|E|SB|TB] [index]

brep object plot [S|I|SN|KN|F|F2d|SBB|SBB2d|TD|T|T2d|TBB|TBB2d|E|SCV] [index]

brep object intersect object2 i j [PP|PC|PS|CC|CS|SS]

brep object [brepname]

brep comb [suffix]

brep object curve [create|in|inter|remove|move|set_cv|flip|insert_knot|trim|split|join]

brep object surface [create|birail|remove|move|set_cv|trim|split|tensor]

Argument(s)

object

Name for the primitive that you want to operate on.

S

Plot or output info for a specific 'surface'.

F

Plot or output info for a specific 'face'.

T

Plot or output info for a specific 'trim'.

E

Plot or output info for a specific 'edge'.

SB

Output 'bezier' info for a specific 'surface'.

TB

Output 'bezier' info for a specific 'trim'.

I

Plot a specific 'iso-surface'.

SN

Plot a specific 'surface normal'.

KN

Plot a specific 'surface's knots'.

F2d

Plot a specific 'face' in '2d-space'.

SBB

Plot a specific 'surface's leafs' (surface tree).

SBB2d

Plot a specific 'surface's leafs' in '2d-space'.

TD

Plot a specific 'trim direction'.

T2d

Plot a specific 'trim' in '2d-space'.

TBB

Plot a specific 'trim's leafs' (curve tree).

TBB2d

Plot a specific 'trim's leafs' in '2d-space'.

SCV

Plot a specific 'surface's CV'.

index

The index of the surface (face, edge, etc.) you want to plot or output info for. You can use a single number, 'number-number', or 'all'.

object2

The other object to intersect 'object'.

i

Intersect object's ith surface.

j

Intersect object2's jth surface.

PP

Point-point intersections.

PC

Point-curve intersections.

PS

Point-surface intersections.

CC

curve-curve intersections.

CS

curve-surface intersections.

SS

surface-surface intersections (default).

brepname

When convert a non-BREP object to BREP, the result BREP's name.

comb

The comb to be converted to non-evaluated BREP form.

suffix

The suffix in the generated BREPs' names.

create

Create a new NURBS curve or surface.

in

Create a new NURBS curve or surface given detailed description.

inter

Create a new NURBS curve interpolating given control vertices.

remove

Remove a NURBS curve or surface.

move

Move a NURBS curve or surface to a specified position.

set_cv

Set the control vertex of a NURBS curve.

flip

Flip the direction of a NURBS curve.

insert_knot

Insert a knot into a NURBS curve.

trim

Trim a NURBS curve using start and end parameters.

split

Split a NURBS curve into two at a parameter.

join

Join end of curve 1 to start of curve 2.

birail

create a new NURBS surface using two curves.

set_cv

set a control vertex of a NURBS surface to a specified position.

trim

trim a NURBS surface using start and end parameters.

split

split a NURBS surface into two given a parameter value.

tensor

create a new NURBS surface by tensor product of two curves.

Return Value(s)

No Return Values for this command.

Description

The "brep" command is a command for debugging the NURBS (BREP) functionality in BRL-CAD. It can output info information for a specific object, plot its surfaces, faces, etc., and test the implicit to NURBS conversion and surface-surface intersection functionality.

Example(s)

mged> brep obj.brep info F 0

Output information for the 0th face of obj.brep.

mged> brep obj.brep plot S 0-2

Plot the 0th to 2nd surfaces of obj.brep.

mged> brep sph1.brep intersect sph2.brep 0 0

Intersect sph1.brep's 0th surface with sph2.brep's 0th surface. (When there's no intersection type specified, we compute SS intersections)

mged> brep obj.s obj.brep

Convert implicit primitive obj.s to BREP form named obj.brep.

See Also

No related commands.