API Reference > imodeljs-common > Symbology > AreaPattern > AreaPattern.HatchDefLine > dashes dashes dashes: undefined | number[] Array of gap and dash lengths for creating non-solid hatch lines, max of 20. A positive value denotes dash, a negative value a gap, solid line if undefined Defined in core/common/src/geometry/AreaPattern.ts Line 33 Last Updated: 11 June, 2024