void DrawPolyLine( AcGiWorldDraw* mode, const AcGePoint3d& spt, const AcGePoint3d& ept, double width )
{
AcDbPolyline pl( 2 );
pl.addVertexAt( 0, Point3D_To_2D( spt ) );
pl.addVertexAt( 1, Point3D_To_2D( ept ) );
pl.setConstantWidth( width );
pl.worldDraw( mode );
}
void DrawPolyLine( AcGiWorldDraw* mode, const AcGePoint3d& pt, double angle, double length, double width )
{
AcGeVector3d v( AcGeVector3d::kXAxis );
v.rotateBy( angle, AcGeVector3d::kZAxis );
AcDbPolyline pl( 2 );
pl.addVertexAt( 0, Point3D_To_2D( pt ) );
pl.addVertexAt( 1, Point3D_To_2D( pt + v * length ) );
pl.setConstantWidth( width );
pl.worldDraw( mode );
}
// 绘制箭头
void DrawArrow( AcGiWorldDraw* mode, const AcGePoint3d& insertPt, double angle, double width, double length )
{
AcGeVector3d v( AcGeVector3d::kXAxis );
v.rotateBy( angle, AcGeVector3d::kZAxis );
AcDbPolyline pl( 2 );
pl.addVertexAt( 0, Point3D_To_2D( insertPt ) );
pl.addVertexAt( 1, Point3D_To_2D( insertPt + v * length ) );
pl.setWidthsAt( 0, width, 0 );
pl.setWidthsAt( 1, 0, 0 );
pl.worldDraw( mode );
}
void CreatePolygonLoop( AcDbHatch* pHatch, const AcGePoint3dArray& pts )
{
AcGeIntArray edgeTypes;
AcGeVoidPointerArray edgePtrs;
int n = pts.length();
for( int i = 0; i < n; i++ )
{
AcGePoint2d p1 = Point3D_To_2D( pts[i] );
AcGePoint2d p2 = Point3D_To_2D( pts[( i + 1 ) % n] );
AcGeLineSeg2d* pLine = new AcGeLineSeg2d( p1, p2 );
edgePtrs.append( pLine );
edgeTypes.append( AcDbHatch::kLine );
}
pHatch->appendLoop( AcDbHatch::kDefault, edgePtrs, edgeTypes );
}
void CreateCircleLoop( AcDbHatch* pHatch, const AcGePoint3d& pt, double radius )
{
AcGeCircArc2d* cirArc = new AcGeCircArc2d();
cirArc->setCenter( Point3D_To_2D( pt ) );
cirArc->setRadius( radius );
cirArc->setAngles( 0.0, PI * 2 );
AcGeIntArray edgeTypes;
AcGeVoidPointerArray edgePtrs;
edgeTypes.append( AcDbHatch::kCirArc );
edgePtrs.append( ( void* )cirArc );
pHatch->appendLoop( AcDbHatch::kDefault, edgePtrs, edgeTypes );
}
