# Macro Circle

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Macro Circle

Description
Creates a circle or arc giving radius, diameter, circumference, area, startangle, endangle, arc, anglecenter, cord, arrow, center (point), placemObject on choice (without GUI). The new circle is created in the real coordinate of object, not in the coordinate of the Body.
(Command line, paste this complete macro in the Python console).

Macro version: 0.4
Author
mario52
Icon
Macro Version
0.4
2019-06-19
All
Default shortcut
None
Macro CirclePlus

## Description

This small macro create a circle or arc giving radius, diameter, circumference, area, startangle, endangle, arc, anglecenter, cord, arrow, center (point), placemObject on choice. The new circle is created in the real coordinate of object, not in the coordinate of the Body.
(Command line, paste this complete macro in the Python console).

The circle is still facing the screen (with getCameraOrientation) (or give the placement)

## Use

Copy the code and paste it in the console Python the FreeCAD the command is used all the time to the disposal FreeCAD open give the parameter on choice :

• x y z : coordinates of circle if not coordinates the circle is created on point 0,0,0
• diameter : diameter of circle
• circumference : circumference of circle
• area : area of circle
• startangle : start angle for arc
• endangle : end angle for arc
• arc and anglecenter : arc in combination with anglecenter
• arc = length of arc
• anglecenter = angle of center circle to extremities of arc
• cord and arrow : cord in combination with arrow of circle
• cord : length of cord of circle
• arrow : length of arrow of circle
• center : if center as different 0 one point is created on center of circle
• placemObject
• example :
• pl.Rotation.Q=(0.0,-0.0,-0.0,1.0)
• give placemObject = pl

if there is no parameter "circle()" a list of functions is displayed in the report view

## Script

ToolBar Icon

Macro_circle.FCMacro

```#-*- coding: utf-8 -*-
#from math import sqrt, pi
# creer un cercle ou un arc entierement parametrabel en utilisant :
# create a circle or arc fully parametrabel using:
#
# paste the complete macro in the Python console
#
# x x x coordinates
#with diameter
#with circumference
#with area
#with startangle
#with endangle
#with [arc and anglecenter]      in combination (angle in degrees)
#with [cord and arrow]           in combination
#with center (if center as different 0 one point is created on center of circle)
#give placemObject
#     pl.Rotation.Q=(0.0,-0.0,-0.0,1.0)
#     placemObject = pl
# s'il n'y a pas de parametre "circle()" une liste des fonctions s'affiche dans la Vue rapport
# if there is no parameter "circle()" a list of functions is displayed in the report view

__title__   = "circle"
__author__  = "Mario52"
__version__ = "0.4"
__date__    = "19/06/2019"

import Draft #, Part

from math import sqrt, pi
if placemObject == "":
else:
pl = placemObject                                  # placement imposted
if diameter != 0:                                      # with diameter
elif circumference != 0:                               # with circumference
radius = (circumference / pi) / 2.0
elif area != 0:                                        # with area
elif (cord != 0) and (arrow != 0):                     # with cord and arrow
radius = ((arrow**2) + (cord**2) / 4.0) / (arrow*2)
elif (arc != 0) and (anglecenter != 0):                # with arc and anglecenter central in degrees
if endangle != 0:
startangle  = endangle - anglecenter
endangle   = anglecenter + startangle
startangle  = endangle - anglecenter
try:
if center != 0:
x=pl.Base.x
y=pl.Base.y
z=pl.Base.z
Draft.makePoint(x,y,z)

except Exception:
App.Console.PrintError("Unexpected keyword argument" + "\n")
App.ActiveDocument.recompute()
else:
App.Console.PrintMessage("Unexpected keyword argument" + "\n")
#example
#circle(arc=50,anglecenter=20,center=1)

## Memo of circle

Examples codes

```circle(radius=10)    # example 1
circle(x=15,diameter=20)    # example 2
circle(y=45,circumference=100)    # example 3```

```circle(y=-15,area=100)    # example 4
circle(y=-15,x=15,startangle=60,endangle=-20,center=1)    # example 5
circle(y=-15,x=45,cord=9,arrow=3,center=1)    # example 6 left
circle(x=65,y=-15,arc=3.5,anglecenter=40,startangle=20,center=1)    # example 6 rigth```

## Version

ver 0.4 19/06/2019 : upgrade ver 0.19

ver 0.3 10/06/2018 : replace /2 to /2.0 (float)

ver 0.2 24/02/2015 : adding function "placemObject"