TA的每日心情 | 开心 6 小时前 |
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签到天数: 20 天 [LV.4]偶尔看看III
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- 实现代码:
- #include "StdAfx.h"
- #include "StdArx.h"
- #include "..\..\Common\我的类\Arc.h"
- #include <acedads.h>
- #include "..\..\Common\Entity\LineUtil.h"
- #include <geassign.h>
- #include <dbents.h>
- #include "..\..\Common\Others\ConvertUtil.h"
- #include <gearc2d.h>
- #include <dbcurve.h>
- #include "..\..\Common\Interaction\SelectUtil.h"
- #include "..\..\Common\Document\DwgDatabaseUtil.h"
- void ZffMyProjectdrwarc()
- {
- AcDbEntity *pEntRef=NULL;
- AcGePoint3d pickPoint;
- AcDbBlockReference *pBlkRef=NULL;
- AcDbObjectId blkDefId;
- AcDbObjectIdArray blkRefIds;
- int i,n=5;
- int track=1,type;
- ads采用point pnt;
- AcGePoint3d pt;
- if (CSelectUtil::PromptSelectEntity(TEXT("\n选择块:"),AcDbBlockReference::desc(),pEntRef,pickPoint))
- {
- pBlkRef=AcDbBlockReference::cast(pEntRef);
- blkDefId=pBlkRef->blockTableRecord();
- pEntRef->close();
- pBlkRef->close();
- }
- acedGetPoint(NULL,"\n请输入一点:",pnt);
- pt.x=pnt[X];
- pt.y=pnt[Y];
- pt.z=pnt[Z];
- AcGePoint2d pt12d=CConvertUtil::ToPoint2d(asPnt3d(pnt));
- AcGePoint2d pt22d=CConvertUtil::ToPoint2d(pt);
- AcDbObjectId lineId=CLineUtil::Add(asPnt3d(pnt),pt);
- AcGeVector2d vec=pt22d-pt12d;
- for (i=1;i<n+1;i++)
- {
- pBlkRef=new AcDbBlockReference(CConvertUtil::ToPoint3d(pt12d+i*vec/(n+1)),blkDefId);
- blkRefIds.append(CDwgDatabaseUtil::PostToModelSpace(pBlkRef));
- }
- pBlkRef->close();
- AcDbLine *pLine=NULL;
- struct resbuf result;
- while(track>0)
- {
- acedGrRead(track,&type,&result);
- pt.x=result.resval.rpoint[X];
- pt.y=result.resval.rpoint[Y];
- pt.z=result.resval.rpoint[Z];
- pt12d=CConvertUtil::ToPoint2d(asPnt3d(pnt));
- pt22d=CConvertUtil::ToPoint2d(pt);
- acdbOpenObject(pLine,lineId,AcDb::kForWrite);
- pLine->setEndPoint(pt);
- for (i=0;i<blkRefIds.length();i++)
- {
- acdbOpenObject(pBlkRef,blkRefIds[i],AcDb::kForWrite);
- pBlkRef->setPosition(CConvertUtil::ToPoint3d(pt12d+(i+1)*(pt22d-pt12d)/(n+1)));
- pBlkRef->close();
- }
- if (type==3)
- {
- track=0;
- }
- pLine->close();
- }
- AcGePoint2d ptOnArc;
- AcDbObjectId arcId;
- double startParam=0,endParam=0,paramInterval;
- track=1;
- while (track>0)
- {
- acedGrRead(track,&type,&result);
- ptOnArc.x=result.resval.rpoint[X];
- ptOnArc.y=result.resval.rpoint[Y];
- if (ptOnArc.x!=pt.x||ptOnArc.y!=pt.y)
- {
- if (arcId.isNull())
- {
- acdbOpenObject(pLine,lineId,AcDb::kForWrite);
- pLine->erase();
- pLine->close();
- arcId=CArc::Add(pt12d,pt22d,pt22d);
- }
- AcGeCircArc2d geArc(pt12d, ptOnArc, pt22d);
- AcGePoint2d ptCenter = geArc.center();
- double radius = geArc.radius();
- AcGeVector2d vecStart(pt12d.x - ptCenter.x, pt12d.y - ptCenter.y);
- AcGeVector2d vecEnd(pt22d.x - ptCenter.x, pt22d.y - ptCenter.y);
- double startAngle = vecStart.angle();
- double endAngle = vecEnd.angle();
- AcDbArc *pArc2=new AcDbArc(CConvertUtil::ToPoint3d(ptCenter),radius,startAngle,endAngle);
- AcGePoint3d ptclose;
- pArc2->getClosestPointTo(CConvertUtil::ToPoint3d(ptOnArc),ptclose);
- pArc2->close();
- AcDbArc *pArc=NULL;
- acdbOpenObject(pArc,arcId,AcDb::kForWrite);
- if (CConvertUtil::ToPoint2d(ptclose).distanceTo(ptOnArc)<0.01)
- {
- pArc->setCenter(CConvertUtil::ToPoint3d(ptCenter));
- pArc->setRadius(radius);
- pArc->setStartAngle(startAngle);
- pArc->setEndAngle(endAngle);
- }
- else
- {
- pArc->setCenter(CConvertUtil::ToPoint3d(ptCenter));
- pArc->setRadius(radius);
- pArc->setStartAngle(endAngle);
- pArc->setEndAngle(startAngle);
- }
- AcDbCurve *pCurve=AcDbCurve::cast(pArc);
- pCurve->getStartParam(startParam);
- pCurve->getEndParam(endParam);
- paramInterval=(endParam-startParam)/(n+1);
- for (i=1;i<n+1;i++)
- {
- double param=startParam+i*paramInterval;
- pCurve->getPointAtParam(param,pt);
- acdbOpenObject(pBlkRef,blkRefIds[i-1],AcDb::kForWrite);
- pBlkRef->setPosition(pt);
- pBlkRef->close();
- }
- pCurve->close();
- pArc->close();
- if (type==3)
- {
- track=0;
- }
- }
- }
- }
- AcDbObjectId CArc::Add(const AcGePoint2d &ptStart,const AcGePoint2d &ptOnArc,const AcGePoint2d &ptEnd)
- {
- AcGePoint3d ptOnArc1;
- AcGeCircArc2d geArc(ptStart, ptOnArc, ptEnd);
- AcGePoint2d ptCenter = geArc.center();
- double radius = geArc.radius();
- double tol=0.01;
- // 计算起始和终止角度
- AcGeVector2d vecStart(ptStart.x - ptCenter.x, ptStart.y - ptCenter.y);
- AcGeVector2d vecEnd(ptEnd.x - ptCenter.x, ptEnd.y - ptCenter.y);
- double startAngle = vecStart.angle();
- double endAngle = vecEnd.angle();
- AcDbArc *pArc=new AcDbArc(CConvertUtil::ToPoint3d(ptCenter), radius, startAngle, endAngle);
- pArc->getClosestPointTo(CConvertUtil::ToPoint3d(ptOnArc),ptOnArc1);
- if (CConvertUtil::ToPoint2d(ptOnArc1).distanceTo(ptOnArc)<tol)
- {
- return CDwgDatabaseUtil::PostToModelSpace(pArc);
- }
- else
- {
- AcDbArc *pArc2=new AcDbArc(CConvertUtil::ToPoint3d(ptCenter),radius,endAngle,startAngle);
- delete pArc;
- return CDwgDatabaseUtil::PostToModelSpace(pArc2);
- }
- }
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