//------------------------------------------------------------------------------

//    Copyright (c) 2012 eryar All Rights Reserved.

//

//        File    : Main.cpp

//        Author  : eryar@163.com

//        Date    : 2012-6-23 21:30

//        Version : 1.0v

//

//    Description : Test primitive Geometric Types in OpenCASCADE.

//

//      The Geometric Processor package, called gp.

//

//      The pg package offers classes for both 2D and 3D objects which

//      are handled by value rather than by reference. When this sort of object

//      is copied, it is copied entirely. Changes in one instance will not be

//      reflected in another.

//

//==============================================================================

// Use Toolkit TKernel.

#pragma comment(lib,"TKernel.lib")

// Use Toolkit TKMath.

#pragma comment(lib, "TKMath.lib")

#include 
     

#include 
     

#include 
     

#include 
     

void DumpPoint(const gp_Pnt& p);

int main(int argc, char* argv[])

{

gp_Pnt  aPoint(0, 0, 0);

// 1. Translate a point in a direction.

// The direction determined by a gp_Vec or two gp_Pnt.

cout<<"Before translated:";

DumpPoint(aPoint);

aPoint.Translate(gp_Pnt(2, 2, 3), gp_Pnt(10, 10, 0));

cout<<"After translated:";

DumpPoint(aPoint);

// 2. Rotate a point.

// Rotate a point by an axis and the rotate angle.

cout<<"Before rotated:";

DumpPoint(aPoint);

// Roate 45 degree about Z axis.

// Positive angle value will be rotated counterclockwise.

aPoint.Rotate(gp::OZ(), PI/4);

cout<<"After rotated 45 degree about Z axis:";

DumpPoint(aPoint);

// 2.1 Test Package Precision.

if (aPoint.X() < Precision::Confusion() && aPoint.X() > -Precision::Confusion())

{

cout<<"Point X value:"<
     
      <
     

cout<<"Precision::Confusion() value:"<
     
      <
     

}

aPoint.Rotate(gp::OZ(), PI/4);

cout<<"After rotate 45 degree about Z axis:";

DumpPoint(aPoint);

// 3. Transform a point by gp_Trsf.

gp_Trsf transform;

transform.SetMirror(gp::OX());

cout<<"Before gp_Trsf:";

DumpPoint(aPoint);

aPoint.Transform(transform);

cout<<"After gp_Trsf:";

DumpPoint(aPoint);

// 4. Mirror a point.

// 4.1 Performs the symmetrical transformation of

// a point with respect to an axis placement which

// is the axis of the symmetry.

cout<<"Before mirrored with a symmetric axis:";

DumpPoint(aPoint);

aPoint.Mirror(gp::OY());

cout<<"After mirrored with a symmetric axis:";

DumpPoint(aPoint);

// 4.2 Performs the symmetrical transformation of

// a point with respect to a plane.

cout<<"Before mirrored with a symmetric plane:";

DumpPoint(aPoint);

aPoint.Mirror(gp::XOY());

cout<<"After mirrored with a symmetric plane";

DumpPoint(aPoint);

// 5. Scale a point.

aPoint.SetCoord(1, 2, 1);

cout<<"Before Scaled:";

DumpPoint(aPoint);

/*

// Scale point source code...

inline void gp_Pnt::Scale (const gp_Pnt& P,

const Standard_Real S)

{

gp_XYZ XYZ = P.coord;

XYZ.Multiply (1.0 - S);

coord.Multiply (S);

coord.Add      (XYZ);

}

*/

aPoint.Scale(gp_Pnt(1, 2, 2), 2);

cout<<"After Scaled:";

DumpPoint(aPoint);

return 0;

}

/**

* Description: Dump point information.

*/

void DumpPoint( const gp_Pnt& p )

{

cout<<"("<
     
      <<","<
      
       <<","<
       
        <<")"<
       
      
     

}

1:  Before translated:(0,0,0)

2:  After translated:(8,8,-3)

3:  Before rotated:(8,8,-3)

4:  After rotated 45 degree about Z axis:(8.88178e-016,11.3137,-3)

5:  Point X value:8.88178e-016

6:  Precision::Confusion() value:1e-007

7:  After rotate 45 degree about Z axis:(-8,8,-3)

8:  Before gp_Trsf:(-8,8,-3)

9:  After gp_Trsf:(-8,-8,3)

10:  Before mirrored with a symmetric axis:(-8,-8,3)

11:  After mirrored with a symmetric axis:(8,-8,-3)

12:  Before mirrored with a symmetric plane:(8,-8,-3)

13:  After mirrored with a symmetric plane(8,-8,3)

14:  Before Scaled:(1,2,1)

15:  After Scaled:(1,2,0)

16:  Press any key to continue . . .