Macro Cut Circle

Macro Cut Circle
Description
Cuts circles or arcs into multiple arcs. The created arcs can be colored alternately to distinguish them. (Command line, paste the complete macro in the Python console). Macro version: 00.03 Last modified: 2019-07-02 FreeCAD version: All Download: ToolBar Icon Author: mario52
Author
mario52
Download
ToolBar Icon
Links
Macros recipes How to install macros How to customize toolbars
Macro Version
00.03
Date last modified
2019-07-02
FreeCAD Version(s)
All
Default shortcut
None
See also
None

Description

This macro cuts circles or arcs into multiple arcs. The created arcs can be colored alternately to distinguish them.

CutCircle

Usage

1. Paste the macro cutCirle in the Python console.
2. Press Enter (the code is now in memory).
3. Select one or more circles or arcs.
4. Invoke the cutCircle() function with 1 or 2 arguments from the Python console:
   • Example with 1 argument: cutCircle(4). This will create 4 new arcs for each selected circle or arc and stop there (no coloring).
   • Example with 2 arguments: cutCircle(6, 1). This will create 6 new arcs for each selected circle or arc, colored alternately in red and white as shown in the image.
5. The original object is not deleted.

Script

ToolBar Icon

Macro_Cut_Circle.FCMacro

# selection circle(s) (circles and arcs)
# give number of cut, biColor 0/1
# cut the circle to x arcs
# if biColor is <> 0 the arcs are colored alternately Red White Red White ....
# 
 
__title__   = "cutCircle"
__author__  = "Mario52"
__date__    = "02/07/2019"
__version__ = "00.03"

import Draft
global biscolor ; biscolor = 0
def cutCircle(number = 2, biColor = 0):
    global biscolor
    def defbiColor(objet):
        global biscolor
        if biscolor == 0:
            FreeCADGui.ActiveDocument.getObject(objet.Name).LineColor = (1.0,0.0,0.0) # 255 = 1 (10 = (1/255 * 10 ))
            biscolor = 1
        else:
            FreeCADGui.ActiveDocument.getObject(objet.Name).LineColor = (1.0,1.0,1.0) # 255 = 1 (10 = (1/255 * 10 ))
            biscolor = 0
    selection = FreeCADGui.Selection.getSelection()
    for piece in selection:
        nom = piece.Name
        if (nom[:6] == "Circle") or (nom[:8] == "Cylinder"):
            circonference = piece.Shape.Length
            rayon = piece.Radius
            placem = piece.Placement
 
            if (nom[:8] == "Cylinder"):
                pivot0 = float(piece.Angle/number)
                FreeCAD.Console.PrintMessage("Cylinder"+"\n")
            else:
                pivot0 = float(360/number)
                FreeCAD.Console.PrintMessage("Circle"+"\n")
            pivot1 = 0.0
            for i in range(number):
                cercle = Draft.makeCircle(radius=rayon,placement=placem,face=False,startangle=(pivot1),endangle=(pivot0+pivot1),support=None)
                if biColor != 0:
                    defbiColor(cercle)
                pivot1 += pivot0
        elif nom[:3] == "Arc":
            FreeCAD.Console.PrintMessage("Arc"+"\n")
            circonference = piece.Shape.Length
            rayon = piece.Radius
            placem = piece.Placement
            First = float(piece.FirstAngle)
            Last  = float(piece.LastAngle)
            pivot0 = abs((First - Last) / number)
            pivot1 = 0.0
            for i in range(number):
                cercle = Draft.makeCircle(radius=rayon,placement=placem,face=False,startangle=(pivot1+First),endangle=(pivot0+pivot1+First),support=None)
                if biColor != 0:
                    defbiColor(cercle)
                pivot1 += pivot0
    App.ActiveDocument.recompute()

#cutCircle(5, 1)  # here with 5 arcs and colored
#cutCircle(4)     #

Example

cutCircle(5, 1)  # here with 5 arcs and colored
cutCircle(4)     #

Project

Cut circle to cylinder

Version

ver 00.03 02/07/2019 : add "App.ActiveDocument.recompute()"

ver 00.02 09/03/2015 : adding create arcs colored alternately Red White Red White .... or not

ver 00.01 24/02/2015 :