porting custom primitive to Bmesh how to ?

Coding Python Support
#1

tryikng to convert an old script to make a new primitive from scratch

and getting some werid problems

here is the new converted script i made


 
import bpy,bmesh
 
from mathutils import Vector
from math import cos,sin,pi,degrees
from add_utils import AddObjectHelper, add_object_data
 
 
def add_object(v,e=[],f=[]):
 
 
 vertsData=[]
 facesData=[]
 
 ed = []
 me = bpy.data.meshes.new(name= "Fluo1")
 me.from_pydata(v, e, f )
             # useful doc when the mesh may be invalid.
 me.validate(verbose = True)
 add_object_data(bpy.context, me, operator = None)    
             # 
 
 
 fluolenght=4           # foot
 fluowidth=0.5           # foot
 fluoheight=4           # inches 
 
 xw=fluolenght/2.0           # Mesh drawn symetrical /  origin = 0,0,0  
               # so dim have to be 1/2 the value  + X /2 + X/2 = X
 
 yd=(fluowidth/2.0)
 
 zh=(fluoheight/12)/2.0
 
 nfin=10
 
# verts              0             1            2           3               4         5            6           7 
 vertsData=[(xw,-yd,-zh),(xw,-yd,zh),(-xw,-yd,zh),(-xw,-yd,-zh),(xw,yd,-zh),(xw,yd,zh),(-xw,yd,zh),(-xw,yd,-zh)]
 facesData=[(0,1,2,3),(4,7,6,5),(1,5,6,2),(2,6,7,3),(0,1,5,4)]
    # left      rigth     top        back       front     bottom
 
 
 
 
add_object(vertsData,[],f=[facesData])

not certain i get error on the verts list which is defined at the beginning

but should i show it in the first definition
me.from_pydata(v, e, f ) may be?

and what does it do it is to initialize the pydata may be ?

thanks for any help

#2

this seems to be working
but not certain if this is the best way to port it


import bpy,bmesh
 
from mathutils import Vector
from math import cos,sin,pi,degrees
from add_utils import AddObjectHelper, add_object_data
 
 
 
def edit_mode_out():
 bpy.ops.object.mode_set(mode = 'OBJECT')
 
def edit_mode_in():
 bpy.ops.object.mode_set(mode = 'EDIT')
 
 
 
def add_object(v,e=[],f=[]):
 
 
 vertsData=[]
 facesData=[]
 ed = []
 
 
 fluolenght=4           # foot
 fluowidth=0.5           # foot
 fluoheight=4           # inches 
 
 xw=fluolenght/2.0           # Mesh drawn symetrical /  origin = 0,0,0  
               # so dim have to be 1/2 the value  + X /2 + X/2 = X
 
 yd=(fluowidth/2.0)
 
 zh=(fluoheight/12)/2.0
 
 nfin=10
 
# verts              0             1            2           3               4         5            6           7 
 vertsData=[(xw,-yd,-zh),(xw,-yd,zh),(-xw,-yd,zh),(-xw,-yd,-zh),(xw,yd,-zh),(xw,yd,zh),(-xw,yd,zh),(-xw,yd,-zh)]
 facesData=[(0,1,2,3),(4,7,6,5),(1,5,6,2),(2,6,7,3),(0,1,5,4)]
    # left      rigth     top        back       front     bottom
 
 
 
 print()
 print ('vertsData =',vertsData)
 print()
 print ('facesData =',facesData)
 
 ver=[]
 fac=[]
 
 for j in range(0, len(vertsData)):
  print ('vertsData[',j,'] =',vertsData[j])
  ver.append(Vector((vertsData[j])))
  print ('verts  v =',ver)
 
#  v.append(Vector((cos(i*pi/3),sin(i*pi/3),0)))
 
 print()
 print ('verts  v =',ver)
 print()
 
 
 me = bpy.data.meshes.new(name= "Fluo1")
 me.from_pydata(ver, [], facesData)
             # useful doc when the mesh may be invalid.
 me.validate(verbose = True)
 add_object_data(bpy.context, me, operator = None)    
             # 
 
 
###########
 
add_object([],[],[])

here i used the same old list of verts then converted to a list of vectors
and build a new face list

then made the Bmesh object

edited

i change the face list

seems that the same old list of faces can be used for Bmesh
which simplify it even more!

thanks