lazarus3.4+fpctrunk编译tachart控件出错原因：最新的fpc禁止访问private引起的修改方法：1、打开lazarus\components\tachart\tadatatools.pas将functionTDataPointDistanceTool.FindRef(APoint:TPoint;AMode:TDataPointMode;ADest:TDataPointTool.TPointRef;AOtherEndS