Handle hairline

[bordoray]

Issue

close #167

変更内容:Description

• Hairline is set as symbol_layer.width() = 0 when export.
• Set as 0.375pt (0.5px) as QGIS defined. https://github.com/qgis/QGIS/blob/e7f5b6f286b6cbaeaad5e73d69fad1448018c7e0/tests/src/python/test_qgssymbollayer_createsld.py#L234

テスト手順:Test

• Make hairline on point , line and polygon layer and export json

Summary by CodeRabbit

• 新機能
  • fill.pyおよびline.pyモジュールでconvert_to_point関数をget_stroke_width_pt関数に置き換えました。
  • line.pyでto_rgba関数のインポートをto_rgba, get_stroke_width_ptに置き換えました。
  • marker.pyでtranslator.vector.symbol.utilsからget_stroke_width_pt関数を追加しました。
• リファクタ
  • get_stroke_width_pt関数を導入して、ライン幅をポイント単位で計算するようにしました。

[coderabbitai[bot]]

Walkthrough

translator/vector/symbolディレクトリ内の複数のファイルが変更されました。主な変更点は、convert_to_point関数の削除と、新しいget_stroke_width_pt関数の導入に関連しています。これにより、ポリゴンシンボルと線シンボルのアウトライン幅の処理が改善されました。また、QGISのマップキャンバス上で見える「非常に細い線」が、Illustratorでインポートした際にも正しく表示されるようになりました。

Changes

ファイル	変更内容
.../symbol/fill.py, .../symbol/line.py	convert_to_point関数の削除とget_stroke_width_pt関数の導入。line.pyではto_rgbaのインポートをto_rgba, get_stroke_width_ptに変更。
.../symbol/marker.py	get_stroke_width_pt関数を使用してoutline_widthの計算を更新。

Assessment against linked issues

Objective	Addressed	Explanation
#167: Fix hairline width -> 0	✅

Poem

🐰✨
細い線、心は広く
変更の風、新たな光を当てる
コードのうさぎ、喜びに飛び跳ねる
Illustratorも見逃さず抱く
細い線の誓い、永遠に変わらず
🌟🌿

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