How to get the object's size?

[bidzhao]

Hello,

I want to scale the imported model according to its size. But I wonder how to get the objects' size after importing from step/dxf files?

For example:

model = cq.importers.importStep("model.stp")
for o in model.objects:
# how to get the object's size in (x, y, z)?

[jmwright]

You can get the size of an object via the BoundingBox in this way.

import cadquery as cq

result = cq.Workplane().box(10, 20, 30)
cq.exporters.export(result, "model.step")

model = cq.importers.importStep("model.step")

for o in model.objects:
    log(o.BoundingBox().xlen)  # prints 10.0
    log(o.BoundingBox().ylen)  # prints 20.0
    log(o.BoundingBox().zlen)  # prints 30.0

[bidzhao]

Thank you! It works perfectly.

[adam-urbanczyk]

On some objects you can also use Surface, Volume and Length methods.