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comps.py
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# ----------------------------------------------------------------------------
# -- Components
# -- comps library
# -- Python classes that creates useful parts for FreeCAD
# ----------------------------------------------------------------------------
# -- (c) Felipe Machado
# -- Area of Electronics. Rey Juan Carlos University (urjc.es)
# -- October-2016
# ----------------------------------------------------------------------------
# --- LGPL Licence
# ----------------------------------------------------------------------------
import FreeCAD
import Part
import logging
import os
import inspect
import Draft
import DraftGeomUtils
import DraftVecUtils
import math
#import copy;
#import Mesh;
# ---------------------- can be taken away after debugging
# directory this file is
filepath = os.getcwd()
import sys
# to get the components
# In FreeCAD can be added: Preferences->General->Macro->Macro path
sys.path.append(filepath)
# ---------------------- can be taken away after debugging
import kcomp # before, it was called mat_cte
import fcfun
import shp_clss
import fc_clss
from fcfun import V0, VX, VY, VZ, V0ROT, addBox, addCyl, addCyl_pos, fillet_len
from fcfun import VXN, VYN, VZN
from fcfun import addBolt, addBoltNut_hole, NutHole
logging.basicConfig(level=logging.DEBUG,
format='%(%(levelname)s - %(message)s')
logger = logging.getLogger(__name__)
#
# _______ _______________________________ TotH = H
# | ___ |
# | / \ | __________ HoleH = h
# | \___/ | __
# __| |__ /| __
# |_____________|/ __ TotD = L ___________________
#
# <- TotW = W->
#
# hole_x: 1 the depth along X axis
# Hole facing X
# 0 the depth along Y axis
# Hole facing Y
# cx: 1 if you want the coordinates referenced to the x center of the piece
# it can be done because it is a new shape formed from the union
# cy: 1 if you want the coordinates referenced to the y center of the piece
# upsdown: NOT YET
# 0: Normal vertical position, referenced to 0
# 1: z0 is the center of the hexagon (nut)
# it can be done because it is a new shape formed from the union
class Sk (object):
"""
SK dimensions:
dictionary for the dimensions
mbolt: is mounting bolt. it corresponds to its metric
tbolt: is the tightening bolt.
SK12 = { 'd':12.0, 'H':37.5, 'W':42.0, 'L':14.0, 'B':32.0, 'S':5.5,
'h':23.0, 'A':21.0, 'b': 5.0, 'g':6.0, 'I':20.0,
'mbolt': 5, 'tbolt': 4}
"""
# separation of the upper side (it is not defined). Change it
# measured for sk12 is 1.2
up_sep_dist = 1.2
# tolerances for holes
holtol = 1.1
def __init__(self, size, name, hole_x = 1, cx=0, cy=0):
self.size = size
self.name = name
self.cx = cx
self.cy = cy
skdict = kcomp.SK.get(size)
if skdict == None:
logger.warning("Sk size %d not supported", size)
else:
doc = FreeCAD.ActiveDocument
# Total height:
sk_z = skdict['H'];
self.TotH = sk_z
# Total width (Y):
sk_w = skdict['W'];
self.TotW = sk_w
# Total depth (x):
sk_d = skdict['L'];
self.TotD = sk_d
# Base height
sk_base_h = skdict['g'];
# center width
sk_center_w = skdict['I'];
# Axis height:
sk_axis_h = skdict['h'];
self.HoleH = sk_axis_h;
# tightening bolt with added tolerances:
# Bolt's head radius
tbolt_head_r = (self.holtol
* kcomp.D912_HEAD_D[skdict['tbolt']])/2.0
# Bolt's head lenght
tbolt_head_l = (self.holtol
* kcomp.D912_HEAD_L[skdict['tbolt']] )
# Mounting bolt radius with added tolerance
mbolt_r = self.holtol * skdict['mbolt']/2.
# the total dimensions: LxWxH
# we will cut it
total_box = addBox(x = sk_d,
y = sk_w,
z = sk_z,
name = "total_box",
cx = False, cy=True)
# what we have to cut from the sides
side_box_y = (sk_w - skdict['I'])/2.
side_box_z = sk_z - skdict['g']
side_cut_box_r = addBox (sk_d, side_box_y, side_box_z,
"side_box_r")
side_cut_pos_r = FreeCAD.Vector(0,
skdict['I']/2.,
skdict['g'])
side_cut_box_r.Placement.Base = side_cut_pos_r
side_cut_box_l= addBox (sk_d, side_box_y, side_box_z,
"side_box_l")
side_cut_pos_l = FreeCAD.Vector(0,-sk_w/2.,skdict['g'])
side_cut_box_l.Placement.Base = side_cut_pos_l
# union
side_boxes = doc.addObject("Part::Fuse", "side_boxes")
side_boxes.Base = side_cut_box_r
side_boxes.Tool = side_cut_box_l
# difference
sk_shape = doc.addObject("Part::Cut", "sk_shape")
sk_shape.Base = total_box
sk_shape.Tool = side_boxes
# Shaft hole, its height has +2 to make it throughl L all de way
shaft_hole = addCyl(skdict['d']/2.,
sk_d+2,
"shaft_hole")
"""
First argument defines de position: -1, 0, h
Second argument rotation: 90 degrees rotation in Y.
Third argument the center of the rotation, in this case,
it is in the cylinder
axis at the base of the cylinder
"""
shaft_hole.Placement = FreeCAD.Placement(
FreeCAD.Vector(-1,0,skdict['h']),
FreeCAD.Rotation(VY,90),
V0)
# the upper sepparation
up_sep = addBox( sk_d +2,
self.up_sep_dist,
sk_z-skdict['h'] +1,
"up_sep")
up_sep_pos = FreeCAD.Vector(-1,
-self.up_sep_dist/2,
skdict['h']+1)
up_sep.Placement.Base = up_sep_pos
#Tightening bolt shaft hole, its height has +2 to make it
#throughl L all de way
#skdict['tbolt'] is the diameter of the bolt: (M..) M4, ...
#tbolt_head_r: is the radius of the tightening bolt's head
#(including tolerance), which its bottom either
#- is at the middle point between
# - A: the total height :sk_z
# - B: the top of the shaft hole: skdict['h']+skdict['d']/2
# - so the result will be (A + B)/2
#or it is aligned with the top of the 12mm shaft, whose height is:
# skdict['h']+skdict['d']/2
tbolt_shaft = addCyl(skdict['tbolt']/2,skdict['I']+2,
"tbolt_shaft")
tbolt_shaft_pos = FreeCAD.Vector(sk_d/2.,
skdict['I']/2.+1,
skdict['h']+skdict['d']/2.+tbolt_head_r/self.holtol)
#(sk_z + skdict['h']+skdict['d']/2.)/2.)
tbolt_shaft.Placement = FreeCAD.Placement(tbolt_shaft_pos,
FreeCAD.Rotation(VX,90),
V0)
# Head of the thigthening bolt
tbolt_head = addCyl(tbolt_head_r,tbolt_head_l+1, "tbolt_head")
tbolt_head_pos = FreeCAD.Vector(sk_d/2.,
skdict['I']/2.+1,
skdict['h']+skdict['d']/2+tbolt_head_r/self.holtol)
#(sk_z + skdict['h']+skdict['d']/2.)/2.)
tbolt_head.Placement = FreeCAD.Placement(tbolt_head_pos,
FreeCAD.Rotation(VX,90),
V0)
#Make an union of all these parts
fuse_shaft_holes = doc.addObject("Part::MultiFuse",
"fuse_shaft_holes")
fuse_shaft_holes.Shapes = [tbolt_head,
tbolt_shaft,
up_sep, shaft_hole]
#Cut from the sk_shape
sk_shape_w_holes = doc.addObject("Part::Cut", "sk_shape_w_holes")
sk_shape_w_holes.Base = sk_shape
sk_shape_w_holes.Tool = fuse_shaft_holes
#Mounting bolts
mbolt_sh_r = addCyl(mbolt_r,skdict['g']+2., "mbolt_sh_r")
mbolt_sh_l = addCyl(mbolt_r,skdict['g']+2., "mbolt_sh_l")
mbolt_sh_r_pos = FreeCAD.Vector(sk_d/2,
skdict['B']/2.,
-1)
mbolt_sh_l_pos = FreeCAD.Vector(sk_d/2,
-skdict['B']/2.,
-1)
mbolt_sh_r.Placement.Base = mbolt_sh_r_pos
mbolt_sh_l.Placement.Base = mbolt_sh_l_pos
# Equivalent expresions to the ones above
#mbolt_sh_l.Placement = FreeCAD.Placement(mbolt_sh_l_pos, v0rot, v0)
#mbolt_sh_r.Placement = FreeCAD.Placement(mbolt_sh_r_pos, v0rot, v0)
mbolts_sh = doc.addObject("Part::Fuse", "mbolts_sh")
mbolts_sh.Base = mbolt_sh_r
mbolts_sh.Tool = mbolt_sh_l
# Instead of moving all the objects from the begining. I do it here
# so it is easier, and since a new object will be created, it is
# referenced correctly
# Now, it is centered on Y, having the width on X, hole facing X
# on the positive side of X
if hole_x == 1:
# this is how it is, no rotation
rot = FreeCAD.Rotation(VZ,0)
if cx == 1: #we want centered on X,bring back the half of depth
xpos = -self.TotD/2.
else:
xpos = 0 # how it is
if cy == 1: # centered on Y, how it is
ypos = 0
else:
ypos = self.TotW/2.0 # bring forward the width
else: # hole facing Y
rot = FreeCAD.Rotation (VZ,90)
# After rotating, it is centered on X,
if cx == 1: # centered on X, how it is
xpos = 0
else:
xpos = self.TotW /2.0
if cy == 1: # we want centered on Y, bring back
ypos = - self.TotD/2.0
else:
ypos = 0
sk_shape_w_holes.Placement.Base = FreeCAD.Vector (xpos, ypos, 0)
mbolts_sh.Placement.Base = FreeCAD.Vector (xpos, ypos, 0)
sk_shape_w_holes.Placement.Rotation = rot
mbolts_sh.Placement.Rotation = rot
sk_final = doc.addObject("Part::Cut", name)
sk_final.Base = sk_shape_w_holes
sk_final.Tool = mbolts_sh
self.fco = sk_final # the FreeCad Object
class Sk_dir (object):
"""
Similar to Sk, but in any direction
SK dimensions:
dictionary for the dimensions
mbolt: is mounting bolt. it corresponds to its metric
tbolt: is the tightening bolt.
SK12 = { 'd':12.0, 'H':37.5, 'W':42.0, 'L':14.0, 'B':32.0, 'S':5.5,
'h':23.0, 'A':21.0, 'b': 5.0, 'g':6.0, 'I':20.0,
'mbolt': 5, 'tbolt': 4}
fc_axis_h
:
___:___ _______________________________ tot_h
| ___ |
| / \ | __________ HoleH = h
| \___/ | __
__| |__ /| __
|_____________|/ __ TotD = L ___________________
___:___ ___
| ___ | |...|
| / 2 \ | 3 1 |.....> fc_axis_d
| \_*_/ | |...|
____| |____ |___|
8_:5_____4_____::_|..fc_axis_w 6_7_|....... fc_axis_d
: : : :
:... tot_w .......: :...:
tot_d
fc_axis_h = axis on the height direction
fc_axis_d = axis on the depth (rod) direction
fc_axis_w = width (perpendicular) dimension, only useful if I finally
include the tightening bolt, or if ref_wc != 1
ref_hr : 1: reference at the Rod Height dimension (rod center):
points 1, 2, 3
0: reference at the base: points 4, 5
ref_wc: 1: reference at the center on the width dimension (fc_axis_w)
points: 2, 4,
0, reference at one of the bolt holes, point 5
-1, reference at one end. point 8
ref_dc: 1: reference at the center of the depth dimension
(fc_axis_d) points: 1,7
0: reference at one of the ends on the depth dimension
points 3, 6
"""
# separation of the upper side (it is not defined). Change it
# measured for sk12 is 1.2
up_sep_dist = 1.2
# tolerances for holes
holtol = 1.1
def __init__(self, size,
fc_axis_h = VZ,
fc_axis_d = VX,
fc_axis_w = V0,
ref_hr = 1,
ref_wc = 1,
ref_dc = 1,
pillow = 0, #make it the same height of a pillow block
pos = V0,
wfco = 1,
tol = 0.3,
name= "shaft_holder"):
self.size = size
self.wfco = wfco
self.name = name
self.pos = pos
self.tol = tol
self.ref_hr = ref_hr
self.ref_wc = ref_wc
self.ref_dc = ref_dc
doc = FreeCAD.ActiveDocument
if pillow == 0:
skdict = kcomp.SK.get(size)
else:
skdict = kcomp.PILLOW_SK.get(size)
if skdict == None:
logger.error("Sk size %d not supported", size)
# normalize de axis
axis_h = DraftVecUtils.scaleTo(fc_axis_h,1)
axis_d = DraftVecUtils.scaleTo(fc_axis_d,1)
if fc_axis_w == V0:
axis_w = axis_h.cross(axis_d)
else:
axis_w = DraftVecUtils.scaleTo(fc_axis_w,1)
axis_h_n = axis_h.negative()
axis_d_n = axis_d.negative()
axis_w_n = axis_w.negative()
# Total height:
sk_h = skdict['H'];
self.tot_h = sk_h
# Total width (Y):
sk_w = skdict['W'];
self.tot_w = sk_w
# Total depth (x):
sk_d = skdict['L'];
self.tot_d = sk_d
# Base height
sk_base_h = skdict['g'];
# center width
sk_center_w = skdict['I'];
# Axis height:
sk_axis_h = skdict['h'];
self.axis_h = sk_axis_h;
# Mounting bolts separation
sk_mbolt_sep = skdict['B']
# tightening bolt with added tolerances:
tbolt_d = skdict['tbolt']
# Bolt's head radius
tbolt_head_r = (self.holtol
* kcomp.D912_HEAD_D[skdict['tbolt']])/2.0
# Bolt's head lenght
tbolt_head_l = (self.holtol
* kcomp.D912_HEAD_L[skdict['tbolt']] )
# Mounting bolt radius with added tolerance
mbolt_r = self.holtol * skdict['mbolt']/2.
if ref_hr == 1: # distance vectors on axis_h
ref2rod_h = V0
ref2base_h = DraftVecUtils.scale(axis_h, -sk_axis_h)
else:
ref2rod_h = DraftVecUtils.scale(axis_h, sk_axis_h)
ref2base_h = V0
if ref_wc == 1: # distance vectors on axis_w
ref2cen_w = V0
ref2bolt_w = DraftVecUtils.scale(axis_w, -sk_mbolt_sep/2.)
ref2end_w = DraftVecUtils.scale(axis_w, -sk_w/2.)
elif ref_wc == 0:
ref2cen_w = DraftVecUtils.scale(axis_w, sk_mbolt_sep/2.)
ref2bolt_w = V0
ref2end_w = DraftVecUtils.scale(axis_w, -(sk_w-sk_mbolt_sep)/2.)
else: # ref_wc == -1 at the end on the width dimension
ref2cen_w = DraftVecUtils.scale(axis_w, sk_w/2.)
ref2bolt_w = DraftVecUtils.scale(axis_w, (sk_w-sk_mbolt_sep)/2.)
if ref_dc == 1: # distance vectors on axis_d
ref2cen_d = V0
ref2end_d = DraftVecUtils.scale(axis_d, -sk_d/2.)
else:
ref2cen_d = DraftVecUtils.scale(axis_d, sk_d/2.)
ref2end_d = V0
basecen_pos = pos + ref2base_h + ref2cen_w + ref2cen_d
# Making the tall box:
shp_tall = fcfun.shp_box_dir (box_w = sk_center_w,
box_d = sk_d,
box_h = sk_h,
fc_axis_w = axis_w,
fc_axis_h = axis_h,
fc_axis_d = axis_d,
cw = 1, cd= 1, ch=0, pos = basecen_pos)
# Making the wide box:
shp_wide = fcfun.shp_box_dir (box_w = sk_w,
box_d = sk_d,
box_h = sk_base_h,
fc_axis_w = axis_w,
fc_axis_h = axis_h,
fc_axis_d = axis_d,
cw = 1, cd= 1, ch=0, pos = basecen_pos)
shp_sk = shp_tall.fuse(shp_wide)
doc.recompute()
shp_sk = shp_sk.removeSplitter()
holes = []
# Shaft hole,
rodcen_pos = pos + ref2rod_h + ref2cen_w + ref2cen_d
rod_hole = fcfun.shp_cylcenxtr(r= size/2. +self.tol,
h = sk_d,
normal = axis_d,
ch = 1,
xtr_top = 1,
xtr_bot = 1,
pos = rodcen_pos)
holes.append(rod_hole)
# the upper sepparation
shp_topopen = fcfun.shp_box_dir_xtr (
box_w = self.up_sep_dist,
box_d = sk_d,
box_h = sk_h-sk_axis_h,
fc_axis_w = axis_w,
fc_axis_h = axis_h,
fc_axis_d = axis_d,
cw = 1, cd= 1, ch=0,
xtr_h = 1, xtr_d = 1, xtr_nd = 1,
pos = rodcen_pos)
holes.append(shp_topopen)
# Tightening bolt hole
# tbolt_d is the diameter of the bolt: (M..) M4, ...
# tbolt_head_r: is the radius of the tightening bolt's head
# (including tolerance), which its bottom either
#- is at the middle point between
# - A: the total height :sk_h
# - B: the top of the shaft hole: axis_h + size/2.
# - so the result will be (A + B)/2
# tot_h - (axis_h + size/2.)
# _______..A........................
# | ___ |.B.......+ rodtop2top_dist = sk_h - (axis_h + size/2.)
# | / \ |.......+ size/2.
# | \___/ | :
# __| |__ + axis_h
# |_____________|....:
rodtop2top_dist = sk_h - (sk_axis_h + size/2.)
tbolt_pos = ( rodcen_pos
+ DraftVecUtils.scale(axis_w, sk_center_w/2.)
+ DraftVecUtils.scale(axis_h, size/2.)
+ DraftVecUtils.scale(axis_h, rodtop2top_dist/2.))
shp_tbolt = fcfun.shp_bolt_dir(r_shank= tbolt_d/2.,
l_bolt = sk_center_w,
r_head = tbolt_head_r,
l_head = tbolt_head_l,
hex_head = 0,
xtr_head = 1,
xtr_shank = 1,
support = 0,
fc_normal = axis_w_n,
fc_verx1 = axis_h,
pos = tbolt_pos)
holes.append(shp_tbolt)
#Mounting bolts
cen2mbolt_w = DraftVecUtils.scale(axis_w, sk_mbolt_sep/2.)
for w_pos in [cen2mbolt_w.negative(), cen2mbolt_w]:
mbolt_pos = basecen_pos + w_pos
mbolt_hole = fcfun.shp_cylcenxtr(r= mbolt_r,
h = sk_d,
normal = axis_h,
ch = 0,
xtr_top = 1,
xtr_bot = 1,
pos = mbolt_pos)
holes.append(mbolt_hole)
shp_holes = fcfun.fuseshplist(holes)
shp_sk = shp_sk.cut(shp_holes)
self.shp = shp_sk
if wfco == 1:
# a freeCAD object is created
fco = doc.addObject("Part::Feature", name )
fco.Shape = self.shp
self.fco = fco
def color (self, color = (1,1,1)):
if self.wfco == 1:
self.fco.ViewObject.ShapeColor = color
else:
logger.debug("Object with no fco")
#doc =FreeCAD.newDocument()
#h_sk = Sk_dir (size = 8,
# fc_axis_h = VX,
# fc_axis_d = VZ,
# fc_axis_w = V0,
# ref_hr = 0,
# ref_wc = 0,
# ref_dc = 0,
# pillow = 0,
# pos = V0,
# tol = 0.3,
# wfco = 1,
# name= "sk8_tol03")
# --------------------------------------------------------------------
# Creates a Misumi Aluminun Profile 30x30 Series 6 Width 8
# length: the length of the profile
# axis 'x', 'y' or 'z'
# 'x' will along the x axis
# 'y' will along the y axis
# 'z' will be vertical
# cx: 1 if you want the coordinates referenced to the x center of the piece
# it can be done because it is a new shape formed from the union
# cy: 1 if you want the coordinates referenced to the y center of the piece
# cz: 1 if you want the coordinates referenced to the z center of the piece
# ATTRIBUTES:
# fco: The freecad object
# Sk: The sketch of the aluminum profile
class MisumiAlu30s6w8 (object):
# filename of Aluminum profile sketch
skfilename = "misumi_profile_hfs_serie6_w8_30x30.FCStd"
ALU_W = 30.0
ALU_Wh = ALU_W / 2.0 # half of it
def __init__ (self, length, name, axis = 'x',
cx=False, cy=False, cz=False):
doc = FreeCAD.ActiveDocument
self.length = length
self.name = name
self.axis = axis
self.cx = cx
self.cy = cy
self.cz = cz
# filepath
path = os.getcwd()
#logging.debug(path)
self.skpath = path + '/../../freecad/comps/'
doc_sk = FreeCAD.openDocument(self.skpath + self.skfilename)
list_obj_alumprofile = []
for obj in doc_sk.Objects:
#if (hasattr(obj,'ViewObject') and obj.ViewObject.isVisible()
# and hasattr(obj,'Shape') and len(obj.Shape.Faces) > 0 ):
# # len(obj.Shape.Faces) > 0 to avoid sketches
# list_obj_alumprofile.append(obj)
if len(obj.Shape.Faces) == 0:
orig_alumsk = obj
FreeCAD.ActiveDocument = doc
self.Sk = doc.addObject("Sketcher::SketchObject", 'sk_' + name)
self.Sk.Geometry = orig_alumsk.Geometry
print (orig_alumsk.Geometry)
print (orig_alumsk.Constraints)
self.Sk.Constraints = orig_alumsk.Constraints
self.Sk.ViewObject.Visibility = False
FreeCAD.closeDocument(doc_sk.Name)
FreeCAD.ActiveDocument = doc #otherwise, clone will not work
doc.recompute()
# The sketch is on plane XY, facing Z
if axis == 'x':
self.Dir = (length,0,0)
# rotation on Y
rot = FreeCAD.Rotation(VY,90)
if cx == True:
xpos = - self.length / 2.0
else:
xpos = 0
if cy == True:
ypos = 0
else:
ypos = self.ALU_Wh # half of the aluminum profile width
if cz == True:
zpos = 0
else:
zpos = self.ALU_Wh
elif axis == 'y':
self.Dir = (0,length,0)
# rotation on X
rot = FreeCAD.Rotation(VX,-90)
if cx == True:
xpos = 0
else:
xpos = self.ALU_Wh
if cy == True:
ypos = - self.length / 2.0
else:
ypos = 0
if cz == True:
zpos = 0
else:
zpos = self.ALU_Wh
elif axis == 'z':
self.Dir = (0,0,length)
# no rotation
rot = FreeCAD.Rotation(VZ,0)
if cx == True:
xpos = 0
else:
xpos = self.ALU_Wh
if cy == True:
ypos = 0
else:
ypos = self.ALU_Wh
if cz == True:
zpos = - self.length / 2.0
else:
zpos = 0
else:
logging.debug ("wrong argument")
self.Sk.Placement.Rotation = rot
self.Sk.Placement.Base = FreeCAD.Vector(xpos,ypos,zpos)
alu_extr = doc.addObject("Part::Extrusion", name)
alu_extr.Base = self.Sk
alu_extr.Dir = self.Dir
alu_extr.Solid = True
self.fco = alu_extr # the FreeCad Object
# ----------- class RectRndBar ---------------------------------------------
# Creates a rectangular bar with rounded edges, and with the posibility
# to be hollow
#
# Base: the length of the base of the rectangle
# Height: the length of the height of the rectangle
# Length: the length of the bar, the extrusion
# Radius: the radius of the rounded edges (fillet)
# Thick: the thikness of the bar (hollow bar)
# If it is zero or larger than base or
# height, it will be full
# inrad_same : True: inradius = radius. When the radius is very small
# False: inradius = radius - thick
# axis 'x', 'y' or 'z'
# direction of the bar
# 'x' will along the x axis
# 'y' will along the y axis
# 'z' will be vertical
# baseaxis 'x', 'y' or 'z'
# in which axis the base is on. Cannot be the same as axis
# cx: 1 if you want the coordinates referenced to the x center of the piece
# it can be done because it is a new shape formed from the union
# cy: 1 if you want the coordinates referenced to the y center of the piece
# cz: 1 if you want the coordinates referenced to the z center of the piece
# attributes:
# inRad : radius of the inner radius
# inBase : lenght of the inner rectangle
# inHeight : height of the inner rectangle
# hollow : True, if it is hollow, False if it is not
# face : the face has been extruded
# fco : FreeCad Object
class RectRndBar (object):
def __init__ (self, Base, Height, Length, Radius, Thick = 0,
inrad_same = False, axis = 'x',
baseaxis = 'y', name = "rectrndbar",
cx=False, cy=False, cz=False):
doc = FreeCAD.ActiveDocument
self.Base = Base
self.Height = Height
self.Length = Length
self.Radius = Radius
self.Thick = Thick
self.inrad_same = inrad_same
self.name = name
self.axis = axis
self.baseaxis = baseaxis
self.cx = cx
self.cy = cy
self.cz = cz
self.inBase = Base - 2 * Thick
self.inHeight = Height - 2 * Thick
if Thick == 0 or Thick >= Base or Thick >= Height:
self.Thick = 0
self.hollow = False
self.inRad = 0
self.inrad_same = False
self.inBase = 0
self.inHeight = 0
else :
self.hollow = True
if inrad_same == True:
self.inRad = Radius
else:
if Radius > Thick:
self.inRad = Radius - Thick
else:
self.inRad = 0 # a rectangle, with no rounded edges (inside)
wire_ext = fcfun.shpRndRectWire (x=Base, y=Height, r=Radius,
zpos= Length/2.0)
face_ext = Part.Face(wire_ext)
if self.hollow == True:
wire_int = fcfun.shpRndRectWire (x=self.inBase,
y=self.inHeight,
r=self.inRad,
zpos= Length/2.0)
face_int = Part.Face(wire_int)
face = face_ext.cut(face_int)
else:
face = face_ext # is not hollow
self.face = face
# Rotate and extrude in the appropiate direction
# now is facing Z, I use vec2
if axis == 'x': # rotate to Z, the 1 or -1 makes the extrusion different
vec2 = (1,0,0)
dir_extr = FreeCAD.Vector(Length,0,0)
elif axis == 'y':
vec2 = (0,1,0)
dir_extr = FreeCAD.Vector(0,Length,0)
elif axis == 'z':
vec2 = (0,0,1)
dir_extr = FreeCAD.Vector(0,0,Length)
if baseaxis == 'x':
vec1 = (1,0,0)
elif baseaxis == 'y':
vec1 = (0,1,0)
elif baseaxis == 'z':
vec1 = (0,0,1)
vrot = fcfun.calc_rot (vec1,vec2)
vdesp = fcfun.calc_desp_ncen (
Length = self.Base,
Width = self.Height,
Height = self.Length ,
vec1 = vec1, vec2 = vec2,
cx = cx, cy=cy, cz=cz)
face.Placement.Base = vdesp
face.Placement.Rotation = vrot
shp_extr = face.extrude(dir_extr)
rndbar = doc.addObject("Part::Feature", name)
rndbar.Shape = shp_extr
self.fco = rndbar
# ----------- end class RectRndBar ----------------------------------------
# ----------- class AluProf ---------------------------------------------
# Creates a generic aluminum profile
# :----- width ----:
# : slot :
# : :--: :
# :______: :______:
# | __| |__ |
# | |\ \ / /| |
# |_| \ \____/ / |_| ...........
# | | ...... insquare
# | ( ) | ......indiam :
# _ | ____ | ..............:
# | | / / \ \ | |
# | |/ /_ _\ \| | ....
# |______| |______| ....thick
#
# width: the Width of the profile, it is squared
# length: the length of the bar, the extrusion
# thick: the thickness of the side
# slot: the width of the rail
# insquare: the width of the inner square
# indiam: the diameter of the inner hole. If 0, there is no hole
# axis 'x', 'y' or 'z'
# direction of the bar
# 'x' will be along the x axis
# 'y' will be along the y axis
# 'z' will be vertical
# cx: 1 if you want the coordinates referenced to the x center of the piece
# it can be done because it is a new shape formed from the union
# cy: 1 if you want the coordinates referenced to the y center of the piece
# cz: 1 if you want the coordinates referenced to the z center of the piece
# attributes:
# the arguments and
# ax_center : 1 if the profile is centered along its axis. 0 if not
# face : the face that has been extruded
# shp : the shape
# fco : the freecad object
# How rotation y movement works
# Initial
# Y
# :
# :
# _ : _
# |_|_:_|_|
# ........|.:.|........ X
# _|_:_|_
# |_| : |_|
# :
# :
# :
#
#
# Final axis = 'x' -> Rotation -90 on axis Y: pitch -90
# Z cx = 0
# : cy = 0 -> Translation Y: width/2
# : cz = 1 -> Translation Z: 0
# :
# :_ _
# |_|___|_|
# ..........:.|...|........ Y
# :_|___|_
# |_| |_|
# :
# :
# :
#
#
# Final axis = 'x' -> Rotation -90 on axis Y: pitch -90
# Z cx = 0
# : cy = 0 -> Translation Y: width/2
# : cz = 0 -> Translation Z: width/2
# :
# :_ _
# |_|___|_|
# : | |
# :_|___|_
# ..........|_|...|_|.......Y
# :
# :
# :
#
#
#
#
class AluProf (object):
def __init__ (self, width, length, thick, slot, insquare,
indiam, axis = 'x',
name = "genaluprof",
cx=False, cy=False, cz=False):
doc = FreeCAD.ActiveDocument
self.width = width
self.length = length
self.thick = thick
self.slot = slot
self.name = name
self.insquare = insquare
self.indiam = indiam
self.name = name
self.axis = axis
self.fcvec_axis = fcfun.getfcvecofname(axis)
self.cx = cx
self.cy = cy
self.cz = cz
fcvec_axis = self.fcvec_axis
# vectors of the points
vecpoints = fcfun.aluprof_vec (width, thick, slot, insquare)
doc.recompute()
# wire Face
wire_aluprof = fcfun.wire_sim_xy (vecpoints)
# if it is not centered on X, and the axis doesn't go along X
if cx == 0 and axis != 'x':
posx = width/2.
else:
posx = 0
if cy == 0 and axis != 'y':
posy = width/2.
else:
posy = 0
if cz == 0 and axis != 'z':
posz = width/2.
else:
posz = 0
if axis == 'x':
ax_center = cx
elif axis == 'y':
ax_center = cy
elif axis == 'z':
ax_center = cz
else:
ax_center = 0
logger.error("axis %s not defined. Supported: 'x', 'y', 'z', axis")
self.ax_center = ax_center
doc.recompute()
pos = FreeCAD.Vector(posx,posy,posz) # Position
vec_axis = fcfun.getfcvecofname(axis)
face_ext = Part.Face(wire_aluprof)
# since vec2 of calc_rot is referenced to VNZ, vec_facenomal is negated
vec_naxis = DraftVecUtils.neg(vec_axis)
vrot = fcfun.fc_calc_rot(V0, vec_naxis)
face_ext.Placement.Rotation = vrot
face_ext.Placement.Base = pos
# inner hole
if indiam > 0 :
hole = Part.makeCircle (indiam/2., # Radius
pos, # Position
vec_axis) # direction
wire_hole = Part.Wire(hole)
face_hole = Part.Face(wire_hole)
face_profile = face_ext.cut(face_hole)
else:
face_profile = face_ext