isOnValueRange method
Whether this chart object is in chart horizontal visible area.
Implementation
bool isOnValueRange(double bottomBoundValue, double topBoundValue) =>
bottomValue == null ||
topValue == null ||
_coversValueRange(bottomBoundValue, topBoundValue) ||
_isBottomValueOnRange(bottomBoundValue, topBoundValue) ||
_isTopValueOnRange(bottomBoundValue, topBoundValue);