252 lines
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252 lines
10 KiB
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<html><head><title>Macro 3D Parametric Curve/it</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>Macro 3D Parametric Curve/it</h1></div>
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<div id="mw-content-text" lang="it" dir="ltr" class="mw-content-ltr"><hr/><div class="mw-parser-output"><table class="fcinfobox wikitable ct" width="100%" style="float: right; width: 230px; margin-left: 10px;">
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<tr>
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<td class="ctTitle">
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<h3><span class="mw-headline" id="Macro_3D_Parametric_Curve"><a href="https://www.freecadweb.org/wiki/index.php?title=File:Text-x-python.png" class="image"><img alt="Text-x-python.png" src="32px-Text-x-python.png" width="32" height="32" srcset="/wiki/images/2/2c/Text-x-python.png 1.5x" /></a> Macro 3D Parametric Curve</span></h3>
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<th class="ctOdd">Descrizione
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<td class="ctEven left">Disegna una funzione descritta da una equazione parametrica x(t), y(t) e z(t). Permette di scegliere il tipo di linea tra b-spline e polilinea.
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<th class="ctOdd">Autore
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</th></tr>
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<tr>
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<td class="ctEven"><a href="/wiki/index.php?title=User:Lucio_Gomez_(psicofil)&action=edit&redlink=1" class="new" title="User:Lucio Gomez (psicofil) (page does not exist)">Lucio Gomez (psicofil)</a>
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<th class="ctOdd">Link
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<td class="ctEven"><a href="https://www.freecadweb.org/wiki/index.php?title=Macros_recipes/it" title="Macros recipes/it">Esempi di macro</a><br /><a href="https://www.freecadweb.org/wiki/index.php?title=How_to_install_macros/it" title="How to install macros/it">Come installare le Macro</a><br /><a href="https://www.freecadweb.org/wiki/index.php?title=Customize_Toolbars/it" title="Customize Toolbars/it">Personalizzare la barra degli strumenti</a>
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</td></tr>
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<tr>
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<th class="ctOdd">Versione
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</th></tr>
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<td class="ctEven macro-version">2.0
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</td></tr>
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<th class="ctOdd">Data ultima modifica
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<td class="ctEven macro-date">2015-03-06
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<th class="ctOdd">
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<td class="ctToc"><br /><div id="toc" class="toc"><div class="toctitle"><h2>Contents</h2></div>
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<ul>
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<li class="toclevel-1"><a href="#Macro_3D_Parametric_Curve"><span class="tocnumber">1</span> <span class="toctext">Macro 3D Parametric Curve</span></a></li>
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<li class="toclevel-1 tocsection-1"><a href="#Script_originale"><span class="tocnumber">2</span> <span class="toctext">Script originale</span></a></li>
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<li class="toclevel-1 tocsection-2"><a href="#Script_modificato"><span class="tocnumber">3</span> <span class="toctext">Script modificato</span></a></li>
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</ul>
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</div>
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</td></tr>
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</table>
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<p><br />
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</p><p>Disegna una funzione descritta da una equazione parametrica x(t), y(t) e z(t). Permette di scegliere il tipo di linea tra b-spline e polilinea.
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</p><p><a href="https://www.freecadweb.org/wiki/index.php?title=File:ParametricCurve.png" class="image" title="Example Epicycloid curve"><img alt="Example Epicycloid curve" src="600px-ParametricCurve.png" width="600" height="325" srcset="/wiki/images/thumb/4/42/ParametricCurve.png/900px-ParametricCurve.png 1.5x, /wiki/images/thumb/4/42/ParametricCurve.png/1200px-ParametricCurve.png 2x" /></a>
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</p>
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<h2><span class="mw-headline" id="Script_originale">Script originale</span></h2>
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<p>Il codice aggiornato (13/05/2015) è disponibile nel Github repository:
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<a rel="nofollow" class="external text" href="https://github.com/psicofil/Macros_FreeCAD/blob/master/Macros/ParametricCurve.FCMacro">Get the code here!</a>
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</p>
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<h2><span class="mw-headline" id="Script_modificato">Script modificato</span></h2>
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<p><a href="https://www.freecadweb.org/wiki/index.php?title=File:Macro_3D_Parametric_Curve.png" class="image" title="Example Epicycloid curve"><img alt="Example Epicycloid curve" src="600px-Macro_3D_Parametric_Curve.png" width="600" height="364" srcset="/wiki/images/thumb/f/f5/Macro_3D_Parametric_Curve.png/900px-Macro_3D_Parametric_Curve.png 1.5x, /wiki/images/f/f5/Macro_3D_Parametric_Curve.png 2x" /></a>
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</p><p><b>Macro 3D Parametric Curve.FCMacro</b>
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</p>
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<pre># -*- coding: utf-8 -*-
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# Create a 3D parametric Curve.
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# Author: Gomez Lucio
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# Modified by Laurent Despeyroux on 9th feb 2015
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# - 3 helping variables added a, b and c
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# - enlarged GUI
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# - more flexible GUI
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# - basic error mangement
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import FreeCAD
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from PySide import QtGui,QtCore
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import Part
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import Draft
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from math import *
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class ParamCurv(QtGui.QWidget):
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def __init__(self):
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super(ParamCurv, self).__init__()
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self.initUI()
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def initUI(self):
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self.t0 = QtGui.QLabel("Equation :",self)
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self.ta = QtGui.QLabel(" a(t) ",self)
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self.la = QtGui.QLineEdit(self)
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self.la.setText("37")
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self.tb = QtGui.QLabel(" b(a,t) ",self)
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self.lb = QtGui.QLineEdit(self)
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self.lb.setText("1")
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self.tc = QtGui.QLabel(" c(a,b,t) ",self)
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self.lc = QtGui.QLineEdit(self)
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self.lc.setText("(a+cos(a*t)*2)*b")
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self.t1 = QtGui.QLabel(" X(a,b,c,t) ",self)
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self.l1 = QtGui.QLineEdit(self)
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self.l1.setText("cos(t)*c")
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self.t2 = QtGui.QLabel(" Y(a,b,c,t) ",self)
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self.l2 = QtGui.QLineEdit(self)
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self.l2.setText("sin(t)*c")
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self.t3 = QtGui.QLabel(" Z(a,b,c,t) ",self)
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self.l3 = QtGui.QLineEdit(self)
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self.l3.setText("0")
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self.t31 = QtGui.QLabel("Parameters :",self)
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self.t4 = QtGui.QLabel(" Min t ",self)
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self.l4 = QtGui.QLineEdit(self)
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self.l4.setText("0")
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self.t5 = QtGui.QLabel(" Max t ",self)
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self.l5 = QtGui.QLineEdit(self)
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self.l5.setText("6.283185")
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self.t6 = QtGui.QLabel(" Interval ",self)
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self.l6 = QtGui.QLineEdit(self)
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self.l6.setText("0.01")
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self.t7 = QtGui.QLabel("Type of Line :",self)
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self.op1 = QtGui.QCheckBox(" Polyline",self)
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self.poly = False
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self.op1.stateChanged.connect(self.polyState)
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self.op1.setCheckState(QtCore.Qt.Checked)
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self.op2 = QtGui.QCheckBox(" Bspline",self)
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self.bsline = False
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self.op2.stateChanged.connect(self.bsplineState)
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self.t8 = QtGui.QLabel(" Closed Curve",self)
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self.op3 = QtGui.QCheckBox("",self)
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self.cclose = False
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self.op3.stateChanged.connect(self.ccloseState)
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self.createbutt = QtGui.QPushButton("Create Curve",self)
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self.exitbutt = QtGui.QPushButton("Close",self)
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layout = QtGui.QGridLayout()
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self.resize(420, 380)
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self.setWindowTitle("Parametric Curve ")
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i = 0
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layout.addWidget(self.t0, i, 0)
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i = i+1
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layout.addWidget(self.ta, i, 0)
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layout.addWidget(self.la, i, 1)
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i = i+1
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layout.addWidget(self.tb, i, 0)
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layout.addWidget(self.lb, i, 1)
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i = i+1
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layout.addWidget(self.tc, i, 0)
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layout.addWidget(self.lc, i, 1)
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i = i+1
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layout.addWidget(self.t1, i, 0)
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layout.addWidget(self.l1, i, 1)
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i = i+1
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layout.addWidget(self.t2, i, 0)
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layout.addWidget(self.l2, i, 1)
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i = i+1
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layout.addWidget(self.t3, i, 0)
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layout.addWidget(self.l3, i, 1)
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i = i+1
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layout.addWidget(self.t31, i, 0)
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i = i+1
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layout.addWidget(self.t4, i, 0)
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layout.addWidget(self.l4, i, 1)
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i = i+1
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layout.addWidget(self.t5, i, 0)
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layout.addWidget(self.l5, i, 1)
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i = i+1
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layout.addWidget(self.t6, i, 0)
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layout.addWidget(self.l6, i, 1)
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i = i+1
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layout.addWidget(self.t8, i, 0)
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layout.addWidget(self.op3, i, 1)
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i = i+1
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layout.addWidget(self.t7, i, 0)
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i = i+1
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layout.addWidget(self.op1, i, 0)
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layout.addWidget(self.op2, i, 1)
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i = i+1
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layout.addWidget(self.createbutt, i, 0)
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layout.addWidget(self.exitbutt, i, 1)
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self.setLayout(layout)
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self.show()
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QtCore.QObject.connect(self.createbutt, QtCore.SIGNAL("pressed()"),self.draw)
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QtCore.QObject.connect(self.exitbutt, QtCore.SIGNAL("pressed()"),self.close)
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def ccloseState(self, state):
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if state == QtCore.Qt.Checked:
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self.cclose = True
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else:
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self.cclose = False
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def bsplineState(self, state):
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if state == QtCore.Qt.Checked:
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self.bsline = True
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self.op1.setCheckState(QtCore.Qt.Unchecked)
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else:
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self.bsline = False
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def polyState(self, state):
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if state == QtCore.Qt.Checked:
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self.poly = True
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self.op2.setCheckState(QtCore.Qt.Unchecked)
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else:
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self.poly = False
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def draw(self):
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msgBox = QtGui.QMessageBox()
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fa = str(self.la.text())
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fb = str(self.lb.text())
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fc = str(self.lc.text())
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fx = str(self.l1.text())
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fy = str(self.l2.text())
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fz = str(self.l3.text())
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t = float(str(self.l4.text()))
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tf = float(self.l5.text())
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intv = float(str(self.l6.text()))
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d=(tf-t)/intv
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matriz = []
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for i in range(int(d)):
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try:
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value="a"
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a=eval(fa)
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value="b"
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b=eval(fb)
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value="c"
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c=eval(fc)
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value="X"
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fxx=eval(fx)
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value="Y"
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fyy=eval(fy)
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value="Z"
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fzz=eval(fz)
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except ZeroDivisionError:
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msgBox.setText("Error division by zero in calculus of "+value+"() for t="+str(t)+" !")
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msgBox.exec_()
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except:
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msgBox.setText("Error in the formula of "+value+"() !")
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msgBox.exec_()
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matriz.append(FreeCAD.Vector(fxx,fyy,fzz))
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t+=intv
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curva = Part.makePolygon(matriz)
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if self.bsline == True:
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Draft.makeBSpline(curva,closed=self.cclose,face=False)
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if self.poly == True:
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Draft.makeWire(curva,closed=self.cclose,face=False)
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def close(self):
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self.hide()
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ParamCurv() </pre>
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<div style="clear:both"></div>
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</div>
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</div>
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</div><div class="printfooter">
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Online version: "<a dir="ltr" href="https://www.freecadweb.org/wiki/index.php?title=Macro_3D_Parametric_Curve/it&oldid=240561">http://www.freecadweb.org/wiki/index.php?title=Macro_3D_Parametric_Curve/it&oldid=240561</a>"</div>
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