engineMountGeometry.FCMacro

# Modeling geometry of engine mount
# Author: Miloš D. Petrašinović <mpetrasinovic@mas.bg.ac.rs>
# Structural Analysis of Flying Vehicles
# Faculty of Mechanical Engineering, University of Belgrade
# Department of Aerospace Engineering, Flying structures
# https://vazmfb.com
# Belgrade, 2021
# 
# --------------------
#
# Copyright (C) 2021 Milos Petrasinovic <info@vazmfb.com>
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
#  
# You should have received a copy of the GNU Lesser General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
# ----- PARAMETERS -----
# Coordinates of nodes
# nc[node] = [x, y, z];
nc = [[0, 0, 0], # node 1
      [0, 700, 0], # node 2
      [0, 0, 700], # node 3
      [0, 700, 700], # node 4
      [1200, 0, 350], # node 5
      [1200, 700, 350], # node 6
      [300, 37.5, 350], # node 7
      [300, 662.5, 350], # node 8
      [900, 350, 37.5], # node 9
      [900, 350, 662.5]]; # node 10
# Nodes of engine mount rods
# enn[element] = [node1, node2];
enn = [[1, 7], # rod 1
       [3, 7], # rod 2
       [2, 8], # rod 3
       [4, 8], # rod 4
       [5, 10], # rod 5
       [5, 9], # rod 6
       [6, 10], # rod 7
       [6, 9]]  # rod 8
# Nodes of rods that simulates engine (infinitely rigid rods)
# enm[element] = [node1, node2];
enm = [[7, 8], # engine rod 1
       [8, 9], # engine rod  2
       [9, 7], # engine rod  3
       [7, 10], # engine rod  4
       [10, 8], # engine rod  5
       [10, 9]] # engine rod  6
# --------------------

__Name__ = 'engineMountGeometry'
__Comment__ = 'Modeling geometry of engine mount'
__Author__ = 'Miloš Petrašinović'
__Version__ = '1.0.0'
__Date__ = '2021-12-12'
__License__ = 'LGPL-3.0-or-later'
__Web__ = "https://github.com/VAZMFB/Engine-Mount-FEM/"
__Wiki__ = ''
__Icon__ = ''
__Help__ = 'Modeling geometry of engine mount'
__Status__ = 'stable'
__Requires__ = 'Freecad >= 0.18.4'
__Communication__ = 'https://github.com/VAZMFB/Engine-Mount-FEM/issues/'
__Files__ = ''

import FreeCAD as App
import FreeCADGui as Gui
import Part

activeDocument = App.ActiveDocument;
activeDocumentGui = Gui.ActiveDocument;
c = [[0.0000, 0.4470, 0.7410], # color order
     [0.8500, 0.3250, 0.0980],
     [0.9290, 0.6940, 0.1250],
     [0.4940, 0.1840, 0.5560],
     [0.4660, 0.6740, 0.1880],
     [0.3010, 0.7450, 0.9330],
     [0.6350, 0.0780, 0.1840]]

# Modeling of nodes
nodes = [];
for i in range(len(nc)):
  node = activeDocument.addObject("Part::Vertex", "Node-"+str(i+1))
  node.X = nc[i][0]
  node.Y = nc[i][1]
  node.Z = nc[i][2]
  node.Label = "Node-"+str(i+1)
  nodeGui = activeDocumentGui.getObject(node.Name);
  nodeGui.PointSize = 10
  nodeGui.PointColor = tuple(c[1])
  nodes.append(node)

# Modeling of engine mount rods
for i in range(len(enn)):
    rodShape = Part.makeLine(nodes[enn[i][0]-1].Shape.Point, nodes[enn[i][1]-1].Shape.Point)
    rod = activeDocument.addObject("Part::Feature", "Rod-"+str(i+1))
    rod.Shape = rodShape;
    del rodShape
    rodGui = activeDocumentGui.getObject(rod.Name);
    rodGui.LineWidth = 3
    rodGui.LineColor = tuple(c[1])
    
# Modeling of rods that simulates engine (infinitely rigid rods)
for i in range(len(enm)):
    rodShape = Part.makeLine(nodes[enm[i][0]-1].Shape.Point, nodes[enm[i][1]-1].Shape.Point)
    rod = activeDocument.addObject("Part::Feature", "Engine_rod-"+str(i+1))
    rod.Shape = rodShape
    del rodShape
    rodGui = activeDocumentGui.getObject(rod.Name);
    rodGui.LineWidth = 3
    rodGui.LineColor = tuple(c[0])
    
App.ActiveDocument.recompute()
Gui.SendMsgToActiveView("ViewFit")