1 AcDbObjectPointer<AcDbHelix> aHelix; 2 aHelix.create(); 3 aHelix->setAxisPoint(AcGePoint3d(0, 0, 10)); 4 aHelix->setAxisVector(AcGeVector3d(0, 0, 1)); 5 aHelix->setStartPoint(AcGePoint3d(0, 20, 0)); 6 aHelix->setBaseRadius(20); 7 aHelix->setTopRadius(10); 8 aHelix->setTwist(Adesk::kTrue); 9 10 // case 11 aHelix->setConstrain(AcDbHelix::kTurnHeight); 12 aHelix->setTurnHeight(15); 13 aHelix->setHeight(100); // Turns = Height / TurnHeight 14 15 // case 16 aHelix->setConstrain(AcDbHelix::kTurnHeight); 17 aHelix->setTurnHeight(15); 18 aHelix->setTurns(100); // Height = TurnHeight * Turns 19 20 // case 21 aHelix->setConstrain(AcDbHelix::kTurns); 22 aHelix->setTurns(7); 23 aHelix->setHeight(100); // TurnHeight = Height / Turns 24 25 aHelix->setConstrain(AcDbHelix::kTurns); 26 aHelix->setTurns(7); 27 aHelix->setTurnHeight(15); // Height = TurnHeight * Turns 28 29 // case 30 aHelix->setConstrain(AcDbHelix::kHeight); 31 aHelix->setHeight(100); 32 aHelix->setTurns(7); // TurnHeight = Height / Turns 33 34 // case 35 aHelix->setConstrain(AcDbHelix::kHeight); 36 aHelix->setHeight(100); 37 aHelix->setTurnHeight(15); // Turns = Height / TurnHeight 38 39 aHelix->createHelix(); 40 41 acutPrintf(_T("StartPoint:%lf,%lf,%lf "), 42 aHelix->startPoint()[0], aHelix->startPoint()[1], aHelix->startPoint()[2]); // 0, 20, 10 43 acutPrintf(_T("slope:%lf total length:%lf "), 44 aHelix->turnSlope(), aHelix->totalLength()); 45 46 AcDbObjectPointer<AcDbLine> xAxis; 47 AcDbObjectPointer<AcDbLine> yAxis; 48 AcDbObjectPointer<AcDbLine> zAxis; 49 xAxis.create(); 50 yAxis.create(); 51 zAxis.create(); 52 AcCmColor color; 53 color.setRGB(255, 0, 0); 54 xAxis->setColor(color); 55 color.setRGB(0, 255, 0); 56 yAxis->setColor(color); 57 color.setRGB(0, 0, 255); 58 zAxis->setColor(color); 59 xAxis->setStartPoint(AcGePoint3d::kOrigin + AcGeVector3d(0, 0, 10)); 60 yAxis->setStartPoint(AcGePoint3d::kOrigin + AcGeVector3d(0, 0, 10)); 61 zAxis->setStartPoint(AcGePoint3d::kOrigin + AcGeVector3d(0, 0, 10)); 62 xAxis->setEndPoint(xAxis->startPoint() + AcGeVector3d(20, 0, 0)); 63 yAxis->setEndPoint(yAxis->startPoint() + AcGeVector3d(0, 20, 0)); 64 zAxis->setEndPoint(zAxis->startPoint() + AcGeVector3d(0, 0, 100));