Macro Pyramid
|
|
| Description |
|---|
| This macro creates a parametric pyramid. The radiuses and the height will be set at creation time similar to Part Cone. All parameters can be adjusted. It is possible to create pyramids with a perfect tip. Macro version: 01.01 Last modified: 2019-11-10 FreeCAD version: All Download: ToolBar Icon Author: Eddy Verlinden, Genk, Belgium |
| Author |
| Eddy Verlinden, Genk, Belgium |
| Download |
| ToolBar Icon |
| Links |
| Macros recipes How to install macros How to customize toolbars |
| Macro Version |
| 01.01 |
| Date last modified |
| 2019-11-10 |
| FreeCAD Version(s) |
| All |
| Default shortcut |
| None |
| See also |
| Macro Polyhedrons |
Description
This macro creates a parametric pyramid.
- Both radiuses and the height will be set at creation time, similar to Part Cone.
- All parameters can be adjusted.
- It is possible to create pyramids with a perfect tip.
Note:
If you're also interested in polyhedrons, then you can use Macro Polyhedrons.
You can also make use of the the external workbench Pyramids_and_Polyhedrons that contains the same function.
Example creation with the external workbench Pyramids_and_Polyhedrons that contains the same function.
Usage
- Install: use
Addon Manager to install the macro. - Once installed, open Menu → Macro → Macros. Click on pyramid.py and then click on button execute.
- A knotted pyramid will appear, similar to Part Cone
- Change the parameters just like with Part Cone.
- More info at Pyramids_and_Polyhedrons.
Script
Icon ToolBar 
pyramid.py
# ***************************************************************************
# * Copyright (c) 2019 Eddy Verlinden *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * FreeCAD 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 Library General Public *
# * License along with FreeCAD; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
__Title__ = "Macro_Pyramid"
__Author__ = "Eddy Verlinden"
__Version__ = "01.02"
__Date__ = "2021-01-09"
__Comment__ = "This macro creates a parametric pyramid."
import sys
import FreeCAD,FreeCADGui
import Part
import math
def create(obj_name):
obj=FreeCAD.ActiveDocument.addObject("Part::FeaturePython",obj_name)
fpo = Pyramid(obj)
ViewProviderBox(obj.ViewObject)
FreeCAD.ActiveDocument.recompute()
return fpo
def horizontal_regular_polygon_vertexes(sidescount,radius,z, startangle = 0):
vertexes = []
if radius != 0 :
for i in range(0,sidescount+1):
angle = 2 * math.pi * i / sidescount + math.pi + startangle
vertex = (radius * math.cos(angle), radius * math.sin(angle), z)
vertexes.append(vertex)
else:
vertex = (0,0,z)
vertexes.append(vertex)
return vertexes
def horizontal_regular_pyramid_vertexes(sidescount,radius,z, startangle = 0):
vertexes = []
odd = 0
if (sidescount % 2) == 0:
odd = 1
if radius != 0 :
for i in range(0,sidescount+1):
angle = 2 * math.pi * i / sidescount + (math.pi * (odd/sidescount + 1/2)) + startangle * math.pi / 180
vertex = (radius * math.cos(angle), radius * math.sin(angle), z)
vertexes.append(vertex)
else:
vertex = (0,0,z)
vertexes.append(vertex)
return vertexes
# ===========================================================================
class Pyramid:
radius1value = 0
radius2value = 0
sidescountvalue = 0
side1value = 0
side2value = 0
anglez = 0
def __init__(self, obj, sidescount = 5,radius_bottom = 2 , radius_top = 4, height = 10, angz = 0):
obj.addProperty("App::PropertyLength","Radius1","Pyramid","Radius of the pyramid").Radius1=radius_bottom
obj.addProperty("App::PropertyLength","Radius2","Pyramid","Radius of the pyramid").Radius2=radius_top
obj.addProperty("App::PropertyLength","Height","Pyramid","Height of the pyramid").Height = height
obj.addProperty("App::PropertyInteger","Sidescount","Pyramid","Sidescount of the pyramid").Sidescount = sidescount
obj.addProperty("App::PropertyLength","Sidelength1","Pyramid","Sidelength1 of the pyramid")
obj.addProperty("App::PropertyLength","Sidelength2","Pyramid","Sidelength2 of the pyramid")
obj.addProperty("App::PropertyAngle","Z_rotation","Pyramid","alfa angle around Z").Z_rotation = angz
obj.Proxy = self
def execute (self,obj):
sidescount = int(obj.Sidescount)
angle = 2 * math.pi / sidescount
radius_bottom = float(obj.Radius1)
radius_top = float(obj.Radius2)
sidelength_top = float(obj.Sidelength2)
sidelength_bottom = float(obj.Sidelength1)
height = float(obj.Height)
anglez = float(obj.Z_rotation)
if radius_bottom != self.radius1value or sidescount != self.sidescountvalue:
obj.Sidelength1 = radius_bottom * math.sin(angle/2) * 2
self.radius1value = radius_bottom
self.side1value = float(obj.Sidelength1)
elif sidelength_bottom != self.side1value:
self.radius1value = float(obj.Sidelength1 / 2) / math.sin(angle/2)
obj.Radius1 = self.radius1value
radius_bottom = self.radius1value
self.side1value = float(obj.Sidelength1)
if radius_top != self.radius2value or sidescount != self.sidescountvalue:
obj.Sidelength2 = radius_top * math.sin(angle/2) * 2
self.radius2value = float(radius_top)
self.side2value = float(obj.Sidelength2)
elif sidelength_top != self.side2value:
self.radius2value = float(obj.Sidelength2 / 2) / math.sin(angle/2)
obj.Radius2 = self.radius2value
radius_top = self.radius2value
self.side2value = float(obj.Sidelength2)
self.sidescountvalue = sidescount
faces = []
if radius_bottom == 0 and radius_top == 0:
FreeCAD.Console.PrintMessage("Both radiuses are zero" + "\n")
else:
vertexes_bottom = horizontal_regular_pyramid_vertexes(sidescount,radius_bottom,0 ,anglez)
vertexes_top = horizontal_regular_pyramid_vertexes(sidescount,radius_top ,height,anglez)
if radius_bottom != 0:
polygon_bottom = Part.makePolygon(vertexes_bottom)
face_bottom = Part.Face(polygon_bottom)
faces.append(face_bottom)
if radius_top != 0:
polygon_top = Part.makePolygon(vertexes_top)
face_top = Part.Face(polygon_top)
faces.append(face_top)
for i in range(sidescount):
if radius_top == 0:
vertexes_side=[vertexes_bottom[i],vertexes_bottom[i+1],vertexes_top[0],vertexes_bottom[i]]
elif radius_bottom == 0:
vertexes_side=[vertexes_bottom[0],vertexes_top[i+1],vertexes_top[i],vertexes_bottom[0]]
else:
vertexes_side=[vertexes_bottom[i],vertexes_bottom[i+1],vertexes_top[i+1],vertexes_top[i],vertexes_bottom[i]]
polygon_side=Part.makePolygon(vertexes_side)
faces.append(Part.Face(polygon_side))
shell = Part.makeShell(faces)
solid = Part.makeSolid(shell)
obj.Shape = solid
# ===========================================================================
class ViewProviderBox:
def __init__(self, obj):
obj.Proxy = self
def attach(self, obj):
return
def updateData(self, fp, prop):
return
def getDisplayModes(self,obj):
return "As Is"
def getDefaultDisplayMode(self):
return "As Is"
def setDisplayMode(self,mode):
return "As Is"
def onChanged(self, vobj, prop):
pass
def getIcon(self):
return """
/* XPM */
static char * xpm[] = {
"32 32 9 1",
" c None",
". c #01035E",
"+ c #0F0C1D",
"@ c #4849B7",
"# c #5F5E61",
"$ c #6567FE",
"% c #8E9192",
"& c #A5A6A4",
"* c #FBFEFA",
" ",
" ",
" # ",
" +# ",
" &++# ",
" #+++% ",
" ++.@+& ",
" &++.$++& ",
" %++@$$++& ",
" #++@$$@++& ",
" &+++@$$$@++& ",
" %+.+@$$$$+.+& ",
" #+.+@$$$$$+.+& ",
" &+..+@$$$$$@+.+& ",
" &+..+@$$$$$$@+.+& ",
" #+..+@$$$$$$$+..+& ",
" +..++@$$$$$$$$+..+& ",
" %+++++++@$$$$$$@+..+& ",
" #++++...+++@$$$$.+..+& ",
" +........+++@$$+...+& ",
" &+.........+++.+...+ ",
" #+...........++...+ ",
" #+...........++..+ ",
" +............+..+ ",
" &++...........+.+ ",
" %+++........+++ ",
" &#++.......++ ",
" #++..+++++& ",
" %++#% ",
" ",
" ",
" "};
"""
def __getstate__(self):
return None
def __setstate__(self,state):
return None
# ===========================================================================
if FreeCAD.ActiveDocument == None:
FreeCAD.newDocument()
create ("Pyramid")
FreeCADGui.SendMsgToActiveView("ViewFit")
Link
The forum discussion Macros for pyramids and polyhedrons