#ifndef _SECTIONUTILITY_H_
#define _SECTIONUTILITY_H_

#include "SectionStructDef.h"
#include "acgiutil.h"
#include "XExplodeStreamBase.h"

namespace SectionUtility
{
	// 线到面投影
	// 返回值为1,说明线与平面垂直,则 out_pt 值有效, 返回值为0,说明 out_seg 值有效, 返回值为-1, 说明投不到平面上
	short GEOAPI Projection_line2plane(const XSectionPlane &plane, const AcGeLineSeg3d &in_seg, 
								AcGeLineSeg3d &out_seg, AcGePoint3d &out_pt);

	short GEOAPI Projection_line2plane(const XSectionPlane &plane, const XLine &in_seg, 
								XLine &out_seg, AcGePoint3d &out_pt);

	// 线到面的投影,只处理线段两端点都在面法向方向同侧的线段
	short GEOAPI Projection_line2Plane_sub(const XSectionPlane &plane, const AcGeLineSeg3d &in_seg, 
									AcGeLineSeg3d &out_seg, AcGePoint3d &out_pt);

	// 面到面投影, 返回值为 两面之间最短距离
	double GEOAPI Projection_plane2plane(const XSectionPlane &section, const XSectionPlane &plane, XPoly2D &poly);

	// poly2d 到 投影面的投影
	double GEOAPI Projection_poly2plane(const XSectionPlane &section, const XPoly2D &plane, XPoly2D &poly);

	// 画一个箭头
	void GEOAPI MakeArrow(AcDbPolyline &poly, const AcGePoint3d &arrowHead, const AcGePoint3d &arrowTail);

	// 画一个画柱体
	void GEOAPI DrawColumn3D(XExplodeDraw &dc, const AcGePoint3d& TopCenter, const AcGePoint3d &BottomCenter, const double &scale);

	// 画一个圆锥体
	void GEOAPI DrawTaper3D(XExplodeDraw &dc, const AcGePoint3d &BottomCenter, const AcGeVector3d &vtDir, const double &scale);

	bool GEOAPI GetLine(const std::vector<std::pair<int, XLine> > &lines, const int nIndex, XLine &line);

	// 对全部 AecDbSectionPathSign 实例 进行刷新
	void GEOAPI RefreshSectionPath();

	// objId - 被 clone 的 对象 ID 
	// sLine - 线形
	AcDbObjectId GEOAPI CloneAndResetLineTypeForBlockTableRecord(AcDbObjectId &objId, const CString &sLine);

	XCurveSegment GetSegmentOfPoly(const XPoly2D &poly, const int nIdx);

	int GetCountOfSegmentForPoly(const XPoly2D &poly);

	AcGeMatrix3d GEOAPI GetCoordSystem(const AcGeVector3d &vt);

	// 跟据 xy 面上的 poly 曲线 将之上下拉伸,生成系列的面
	void GEOAPI MakeFacesByPoly(const XPoly2D &poly, const double &elev, const double &height, 
		std::vector<XSectionPlane> &planes, const bool bTopFace = false);
	// bTopface 是否需要顶面和底面.
	
	// 跟据 xy 面上的 poly 曲线 将之上下拉伸,生成系列的面 并将这些面进行投影,添充到 ObjSectionRecord 数组中
	void GEOAPI FillRecordsByPoly(const XPoly2D &poly, const XSectionPlane &section,
		std::vector<ObjSectionRecord> &records, const double &elev, const double &height,
		const AcDbEntity &ent, ObjSectionRecord::SectionType type = ObjSectionRecord::eAEC_WALL,
		const bool bTopFace = false); // bTopface 是否需要顶面和底面.

	// for test
	void GEOAPI DrawPoly2D(const XPoly2D &poly, const int color = 7);

	void GEOAPI DrawXPlane(const XSectionPlane &plane, const int color = 7);

	void GEOAPI DrawLines(const std::vector<XLine> &lines, const AcCmColor color);
}
#endif