求实体与直线交点

tylilingcad

请教一下,在cad中怎样求得实体与平面上一直线的交点坐标用

acdbInters函数只能求得两直线的交点..请高手帮忙急急急...........

梦幻神话

virtual Acad::ErrorStatus

intersectWith(

const AcDbEntity* pEnt,

AcDb::Intersect intType,

AcGePoint3dArray& points,

int thisGsMarker = 0,

int otherGsMarker = 0) const;

pEnt	Input entity with which "this" entity is to intersect
intType	Input type of intersection requested
points	Output with the points of intersection appended
thisGsMarker	Input GS marker of subentity of "this" entity that's involved in the intersection operation. Use the 0 default if not applicable.
otherGsMarker	Input GS marker of subentity of the entity pointed to by pEnt that's involved in the intersection operation. Use the 0 default if not applicable.