Positioning of rendered images

[Pauloretty]

Positioning of rendered images

[Argmaster]

Yes, but it is not as straight forward as one might wanted it to be. What you are after is coordinate origin and bounding box of all draw commands. both of those can be for sure extracted from Backend instance, when you are directly instantiating Tokenizer, Parser and Backend classes. I am not sure if it is currently possible with high level API and it is not possible with CLI. You will still have to manually resize individual images to match biggest one and reposition them to make their coordinate origins match, but it is possible. I'll provide more details soon.

[Argmaster]

I was mistaken about high level API not being enough to handle this issue, you can use RenderingResult.get_properties() to extract LayerProperties object. See example below, based on example from readme.

from __future__ import annotations
from io import BytesIO  # noqa: D100
from PIL import Image


from pygerber.gerberx3.api import (
    ColorScheme,
    Rasterized2DLayer,
    Rasterized2DLayerParams,
)

source_code = """
%FSLAX26Y26*%
%MOMM*%
%ADD100R,1.5X1.0X0.5*%
%ADD200C,1.5X1.0*%
%ADD300O,1.5X1.0X0.6*%
%ADD400P,1.5X3X5.0*%
D100*
X0Y0D03*
D200*
X0Y2000000D03*
D300*
X2000000Y0D03*
D400*
X2000000Y2000000D03*
M02*
"""

result = Rasterized2DLayer(
    options=Rasterized2DLayerParams(
        source_code=source_code,
        colors=ColorScheme.SILK,
        dpi=3000,
    ),
).render()
output = BytesIO()

result.save(output, format="png")

output.seek(0)
Image.open(output).show()

p = result.get_properties()
print(p.gerber_bounding_box)
print(p.gerber_coordinate_origin)
print(p.target_bounding_box)
print(p.target_coordinate_origin)

Difference between gerber_* and target_* is insignificant in our case, I'd recommend sticking to target_* ones, as they refer to actual image.
See LayerProperties in docs.

[Pauloretty]

Yep, a few simple calculations with LayerProperties.target_bounding_box and LayerProperties.target_coordinate_origin solved my problem. Thanks!