Blueprint (Technical Drawing) vs Line Art蓝图技术制图（Blueprint） 对比 线稿 / 单线风格（Line Art / Monoline）

This is Blueprint (Technical Drawing) because…这是 Blueprint (Technical Drawing)，因为……

This is Blueprint because the drawing exists to be measured and built from: a cyan-blue ground, a white grid, dimension lines with units, figure numbers, and registration marks turn every element into a technical specification.

这是蓝图，因为这张图的存在是为了被测量和照着施工：青蓝底、白网格、带单位的尺寸线、图号和对位标记，把每个元素都变成一份技术规格。

It would become Line Art if…如果……就变成 Line Art 了

It would become Line Art if the blue ground, grid, and annotation apparatus were stripped away, leaving clean single-weight outlines on white as pure illustration — expressive contour drawing with nothing left to measure.

如果把蓝底、网格和标注系统全部剥掉，只留下白底上干净的单一线宽轮廓当纯插画 —— 富有表现力的轮廓画，再没什么可量 —— 就变成线稿风格了。