Inconsistent behavior when displaying objects with show_object()

[lukman06]

Description

There appears to be inconsistent behavior when displaying a Sketch object directly with show_object(). The function seems to automatically assemble the Sketch before displaying it.

Code to reproduce

import cadquery as cq
line = cq.Sketch().segment((0,0),(0.25,1)).segment((1,2))
line_assemble = line.assemble()
show_object(line)  # This shows the assembled version despite 'line' not being assembled

Expected behavior

I would expect show_object(line) to either show the unassembled Sketch object or require explicit assembly before displaying.

Actual behavior

When calling show_object(line), it displays the Sketch as if line_assemble = line.assemble() had been called first. This automatic conversion happens behind the scenes.

Environment

• CQ-Editor version: 0.5.dev0

[lorenzncode]

Try copy:

import cadquery as cq
import copy

sk1 = cq.Sketch().segment((0, 0), (0.25, 1)).segment((1, 2))
sk2 = copy.copy(sk1)
sk1.assemble()

or using compound:

import cadquery as cq
from cadquery.func import compound
from cadquery.vis import show

sk1 = cq.Sketch().segment((0, 0), (0.25, 1)).segment((1, 2))
comp1 = compound(sk1.vals())
sk1.assemble()

show(comp1)

[lorenzncode]

You could also visualize the list of edges directly in CQ-Editor or with cadquery.vis:

sk1 = cq.Sketch().segment((0, 0), (0.25, 1)).segment((1, 2))
edges_list = sk1.vals()
sk1.assemble()
show_object(edges_list)

[adam-urbanczyk]

@lukman06 show_object is a CQ-editor function so I moved the issue here.

[adam-urbanczyk]

NB: Sketch has inplace semantics (just like Assembly) to make the implementation easier. So in your example line is line_assemble.