Macro_Align_View_to_Face.md

Macro Align View to Face

{{Macro |Name=Macro Align View to Face |Icone=Macro_Align_View_to_Face.png |Description=This macro aligns the current view to a selected face |Author=Rockn |Version=2.0 |Date=2016-03-06 |FCVersion=All |Download=[https://www.freecadweb.org/wiki/images/d/d7/Macro_Align_View_to_Face.png ToolBar Icon] }}

Description

This macro rotates the current view to point perpendicularly at a selected face of an existing object.

Usage

1. Select a face on an object
2. Run the macro

Script

ToolBar Icon

Macro_Align_View_to_Face.FCMacro {{MacroCode|code=

-- coding: utf-8 --

Set the current view perpendicular to the selected face

Place la vue perpendiculairement a la face selectionnee

2013 Jonathan Wiedemann, 2016 Werner Mayer

from pivy import coin

def pointAt(normal, up): z = normal y = up x = y.cross(z) y = z.cross(x)

rot = App.Matrix()
rot.A11 = x.x
rot.A21 = x.y
rot.A31 = x.z

rot.A12 = y.x
rot.A22 = y.y
rot.A32 = y.z

rot.A13 = z.x
rot.A23 = z.y
rot.A33 = z.z

return App.Placement(rot).Rotation

s=Gui.Selection.getSelectionEx() obj=s[0] faceSel = obj.SubObjects[0] dir = faceSel.normalAt(0,0) cam = FreeCADGui.ActiveDocument.ActiveView.getCameraNode()

if dir.z == 1 : rot = pointAt(dir, App.Vector(0.0,1.0,0.0)) elif dir.z == -1 : rot = pointAt(dir, App.Vector(0.0,1.0,0.0)) else : rot = pointAt(dir, App.Vector(0.0,0.0,1.0))

cam.orientation.setValue(rot.Q) Gui.SendMsgToActiveView("ViewSelection")

}}

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