API Reference > imodeljs-backend > Symbology > LineStyleDefinition > LineStyleDefinition.StrokePatternProps > phase phase phase: undefined | number Skip into the pattern before starting to draw. Value treated as fraction of the first stroke when LineStyleDefinition.StrokePatternOptions.AutoPhase set. Value used as distance when LineStyleDefinition.StrokePatternOptions.CenterStretch is not set. Defined in core/backend/src/LineStyle.ts Line 130 Last Updated: 15 June, 2021