def layout(
document: vp.Document,
size: Tuple[float, float],
landscape: bool,
margin: Optional[float],
align: str,
valign: str,
) -> vp.Document:
"""Layout command"""
size = _normalize_page_size(size, landscape)
document.page_size = size
bounds = document.bounds()
if bounds is None:
# nothing to layout
return document
min_x, min_y, max_x, max_y = bounds
width = max_x - min_x
height = max_y - min_y
if margin is not None:
document.translate(-min_x, -min_y)
scale = min((size[0] - 2 * margin) / width,
(size[1] - 2 * margin) / height)
document.scale(scale)
min_x = min_y = 0.0
width *= scale
height *= scale
else:
margin = 0.0
if align == "left":
h_offset = margin - min_x
elif align == "right":
h_offset = size[0] - margin - width - min_x
else:
h_offset = margin + (size[0] - width - 2 * margin) / 2 - min_x
if valign == "top":
v_offset = margin - min_y
elif valign == "bottom":
v_offset = size[1] - margin - height - min_y
else:
v_offset = margin + (size[1] - height - 2 * margin) / 2 - min_y
document.translate(h_offset, v_offset)
return document
def layout(
document: vp.Document,
size: Tuple[float, float],
landscape: bool,
margin: Optional[float],
align: str,
valign: str,
) -> vp.Document:
"""Layout the geometries on the provided page size.
By default, this command centers everything on the page. The horizontal and vertical
alignment can be adjusted using the `--align`, resp. `--valign` options.
Optionally, this command can scale the geometries to fit specified margins with the
`--fit-to-margin` option.
Examples:
Fit the geometries to 3cm margins with top alignment (a generally pleasing arrangement
for square designs on portrait-oriented pages):
vpype read input.svg layout --fit-to-margin 3cm --valign top a4 write.svg
"""
if landscape and size[0] < size[1]:
size = size[::-1]
document.page_size = size
bounds = document.bounds()
if bounds is None:
# nothing to layout
return document
min_x, min_y, max_x, max_y = bounds
width = max_x - min_x
height = max_y - min_y
if margin is not None:
document.translate(-min_x, -min_y)
scale = min((size[0] - 2 * margin) / width,
(size[1] - 2 * margin) / height)
document.scale(scale)
min_x = min_y = 0.0
width *= scale
height *= scale
else:
margin = 0.0
if align == "left":
h_offset = margin - min_x
elif align == "right":
h_offset = size[0] - margin - width - min_x
else:
h_offset = margin + (size[0] - width - 2 * margin) / 2 - min_x
if valign == "top":
v_offset = margin - min_y
elif valign == "bottom":
v_offset = size[1] - margin - height - min_y
else:
v_offset = margin + (size[1] - height - 2 * margin) / 2 - min_y
document.translate(h_offset, v_offset)
return document