object manipulation

2024-05-13
Freecad Python Scripting

Reference:

https://wiki.freecad.org/FreeCAD_Scripting_Basics

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import Part
doc = FreeCAD.ActiveDocument
# list all objects
all_objects = doc.Objects
# list all names
all_object_names = [it.Name for it in all_objects]
# get object by name
obj = doc.getObject("myObjectName")
# get vertex point
vertex_point = obj.Shape.Vertexes[0].Point
# create new line
new_line = Part.makeLine((-200, -200, 0), (200, 200, 0))
# insert the line
Part.show(new_line)
# recompute the document
doc.recompute()

Draw squares within specific bounds:

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margin = 15
# Define the dimensions of the square area
x_min = -210.134 + margin
x_max = -84.134 - margin
y_min = -140.0997 + margin
y_max = -14.0997 - margin
z = 0
# Define the number of squares in each row and column
num_squares = 10
# Calculate the side length of each square
x_length = (x_max - x_min) / num_squares
y_length = (y_max - y_min) / num_squares
margin_portion = 0.17
hole_portion = 1 - 2 * margin_portion
# Create the squares
for i in range(num_squares):
for j in range(num_squares):
x_start = x_min + i * x_length + x_length * margin_portion
y_start = y_min + j * y_length + y_length * margin_portion
square_points = [
(x_start, y_start, z),
(x_start + x_length * hole_portion, y_start, z),
(x_start + x_length * hole_portion, y_start + y_length * hole_portion, z),
(x_start, y_start + y_length * hole_portion, z),
(x_start, y_start, z), # to make it closed
]
square = Part.makePolygon(square_points)
Part.show(square)

Draw circles with specific bounds:

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margin = 15
# Define the dimensions of the square area
x_min = -210.134 + margin
x_max = -84.134 - margin
y_min = -140.0997 + margin
y_max = -14.0997 - margin
z = 0
# Define the number of circles in each row and column
num_circles = 10
# Calculate the side length of each circle
x_length = (x_max - x_min) / num_circles
y_length = (y_max - y_min) / num_circles
margin_portion = 0.17
radius_portion = 0.5 - margin_portion
radius = x_length * radius_portion
direction = App.Vector(0, 0, 1)
# Create the squares
for i in range(num_circles):
for j in range(num_circles):
x_center = x_min + i * x_length + x_length * 0.5
y_center = y_min + j * y_length + y_length * 0.5
circle = Part.makeCircle(radius, App.Vector(x_center, y_center, 0), direction)
Part.show(circle)

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