Lõikejooni

Lõikejooni (Estonian, plural of lõikejoon) is a term used to denote lines that indicate a cut, trim or intersection in various technical and creative fields. Literally translating as "cutting lines," the concept appears in patternmaking, technical drawing, printing and geometry, where it conveys where material is to be separated or where surfaces meet.

In sewing and fashion design, lõikejooni mark the edges of garment patterns that a cutter follows to remove fabric pieces from a layout. They distinguish between the actual cutting edge and adjacent guides such as seam allowance lines, grainlines and notches. Standard notation may use solid, dashed or colored lines to reduce errors during cutting and assembly.

In printing and graphic production, lõikejooni correspond to trim or crop marks that show where a printed sheet should be cropped to its final size. They are important for alignment, bleed management and finishing processes in commercial print workflows.

In mathematics and technical geometry, a lõikejoon can describe the curve or line formed by the intersection of two surfaces or solids, equivalent to an intersection line in English-language usage. In drafting and CAD, such lines help visualize how components fit together.

Across contexts, clear conventions for line style, labeling and placement are essential to prevent misinterpretation and ensure accurate production, measurement or assembly.