question: set the date range this timeline covers concode_field_sep float outerRadius concode_elem_sep float unitsPerRev concode_elem_sep float radsPerSegment concode_elem_sep TimelineDate dateRange concode_elem_sep float RADS_PER_MESH concode_elem_sep int numSegments concode_elem_sep TimelineUnits units concode_elem_sep float pitch concode_elem_sep float innerRadius concode_elem_sep int calendarUnit concode_field_sep TimelineDate getDateRange concode_elem_sep void setOuterRadius concode_elem_sep float getUnitsPerRev concode_elem_sep DatedSet generateSegments concode_elem_sep void calculateNumSegments concode_elem_sep int getNumSegments concode_elem_sep void setInnerRadius concode_elem_sep void setUnitsPerRev concode_elem_sep float getNumTurns concode_elem_sep float getRadsPerSegment concode_elem_sep float getHeight concode_elem_sep float getPitch concode_elem_sep float getOuterRadius concode_elem_sep void calculateRadsPerSegment concode_elem_sep int getCalendarUnit concode_elem_sep void setRadsPerSegment concode_elem_sep TimelineUnits getUnits concode_elem_sep float getInnerRadius concode_elem_sep void setPitch concode_elem_sep void setUnits
target: void function ( TimelineDate arg0 ) { this . dateRange = arg0 ; calculateNumSegments ( ) ; }