# $Id: 954dbe2 on Mon Mar 25 13:11:26 2013 +0100 by Benedict Verhegghe $
##
##  This file is part of pyFormex 0.9.1  (Tue Oct 15 21:05:25 CEST 2013)
##  pyFormex is a tool for generating, manipulating and transforming 3D
##  geometrical models by sequences of mathematical operations.
##  Home page: http://pyformex.org
##  Project page:  http://savannah.nongnu.org/projects/pyformex/
##  Copyright 2004-2013 (C) Benedict Verhegghe (benedict.verhegghe@ugent.be)
##  Distributed under the GNU General Public License version 3 or later.
##
##  This program is free software: you can redistribute it and/or modify
##  it under the terms of the GNU General Public License as published by
##  the Free Software Foundation, either version 3 of the License, or
##  (at your option) any later version.
##
##  This program is distributed in the hope that it will be useful,
##  but WITHOUT ANY WARRANTY; without even the implied warranty of
##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##  GNU General Public License for more details.
##
##  You should have received a copy of the GNU General Public License
##  along with this program.  If not, see http://www.gnu.org/licenses/.
##
"""TrussFrame

"""
from __future__ import print_function
_status = 'checked'
_level = 'normal'
_topics = ['geometry']
_techniques = ['color']

from gui.draw import *

def run():
    clear()
    yf = [ 0.0, 0.2, 1.2, 2.2, 3.2, 4.2, 4.5 ] # y of nodes in frame columns
    a = Formex([[[0.0,y]] for y in yf ])
    b = connect([a,a],bias=[0,1]).translate([0.5,0.0,0.0])
    b.setProp(3)
    c = b.reflect(0)
    d = connect([b,c],bias=[1,1])
    d.setProp(2)
    e = connect([b,c],bias=[1,2]).select([0,2]) + connect([b,c],bias=[2,1]).select([1,3])
    e.setProp(1)
    col = b+c+d+e
    frame = col.translate([-4.0,0.0,0.0]) + col.translate([+4.0,0.0,0.0])

    # Dakligger
    h0 = 1.2 # hoogte in het midden
    h1 = 0.5 # hoogte aan het einde
    xd = [ 0, 0.6 ] + [ 0.6+i*1.2 for i in range(5)] # hor. positie knopen
    ko = Formex([[[x,0.0]] for x in xd])
    ond = connect([ko,ko],bias=[0,1])
    bov = ond.translate(1,h0).shear(1,0,(h1-h0)/xd[-1])
    tss = connect([ond,bov],bias=[1,1])
    ond.setProp(2)
    bov.setProp(4)
    tss.setProp(5)
    dakligger = (ond+bov+tss)
    dakligger += dakligger.reflect(0)
    frame += dakligger.translate([0,yf[-1],0])
    draw(frame)

    structure = frame.replic2(2,6,12.,3.,0,2)
    clear()
    draw(structure)
    view('top')
    view('right')
    view('iso')

if __name__ == 'draw':
    run()
# End
