只改类别纹理编码

提示词

按给定纹理表只替换选中类别的填充纹理并同步对应图例，地块颜色、边界、编号和类别含义不改，纹理不溢出选区。

Replace only the selected category’s hatch pattern and matching legend sample using the supplied pattern key, retaining colors, boundaries, identifiers, and category meanings and confining hatching to the mask.