Umut CANandClaude Opus 5
dcc8f07bf4
Layer states are ACADMCP_LAYERSTATES XRECORD chunks (<= 255 ASCII chars each), in the file and not in AutoCAD's Layer States Manager. Headless view restore writes the *Active VPORT (ezdxf's header has no $VIEWCTR; measured). UCS is stored and made current; tool coordinates stay WCS. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
"""Named-view arguments, validated before either engine writes."""
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from __future__ import annotations
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import math
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def _finite(value, where: str) -> float:
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if isinstance(value, bool) or not isinstance(value, (int, float)):
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raise ValueError(f"{where} must be a number, got {value!r}")
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number = float(value)
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if not math.isfinite(number):
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raise ValueError(f"{where} must be finite")
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return number
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def resolve_view_args(center, height, width) -> dict:
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"""``{"center": (x, y) | None, "height": float | None, "width": float | None}``."""
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out: dict = {"center": None, "height": None, "width": None}
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if center is not None:
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if not isinstance(center, (list, tuple)) or len(center) != 2:
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raise ValueError("center must be an [x, y] pair")
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out["center"] = (_finite(center[0], "center.x"), _finite(center[1], "center.y"))
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if height is not None:
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out["height"] = _finite(height, "height")
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if out["height"] <= 0:
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raise ValueError(f"height must be > 0, got {out['height']}")
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if width is not None:
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out["width"] = _finite(width, "width")
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if out["width"] <= 0:
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raise ValueError(f"width must be > 0, got {out['width']}")
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return out
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