| Article | 60000577 |
| Type | Wish |
| Product | Engine |
| Version | 6012 |
| Date Added | 7/14/2008 |
| Fixed | Yes [7/14/2008] |
| Submitted by | Marc Seguin |
| Keywords |
In Version 6013 new methods was added in VectorDraw.Geometry.Matrix object
/// <summary>
/// Modify this Matrix using the view direction vector.
/// </summary>
/// <param name="Direction">A Vector defines the camera point offset from the target point.</param>
/// <param name="twist">Rotation of the created matrix from Direction , about Z in radians in clockwise direction.</param>
void SetToViewDirection(Vector Direction, double twist);
/// <summary>
/// Modify this Matrix using azimouth, tilt and twist angles that specify the view direction relative to World Coordinate System.
/// </summary>
/// <param name="azimouth">Watching angle on XY plane relative to X axis in radians in clockwise direction.</param>
/// <param name="tilt">Vertical watching angle relative to XY plane in radians.</param>
/// <param name="twist">Rotation of the created matrix from azimouth and tilt , about Z in radians in clockwise direction.</param>
void SetToViewAngles(double azimouth, double tilt, double twist);
/// <summary>
/// Returns the View Direction and the Angles that define this Matrix.
/// </summary>
/// <param name="direction">A Vector defines the camera point offset from the target point.</param>
/// <param name="azimouth">Watching angle on XY plane relative to X axis in radians in clockwise direction.</param>
/// <param name="tilt">Vertical watching angle relative to XY plane in radians.</param>
/// <param name="twist">Rotation of the created matrix from azimouth and tilt , about Z in radians in clockwise direction.</param>
void GetWorldToViewProperties(out Vector direction, out double azimouth, out double tilt, out double twist);
Example in C#
////defining the viewing direction using azimouth tilt and twist angles.
vdFramedControl.BaseControl.ActiveDocument.Prompt("azimouth,tilt,twist in Degrees:");
gPoint pt = vdFramedControl.BaseControl.ActiveDocument.ActionUtility.getUserPoint() as gPoint;
vdFramedControl.BaseControl.ActiveDocument.Prompt(null);
if (pt == null) return;
double azimouth = pt.x;
double tilt = pt.y;
double twist = pt.z;
Vector v;
Matrix mm = new Matrix();
mm.SetToViewAngles(Globals.DegreesToRadians(azimouth), Globals.DegreesToRadians(tilt), Globals.DegreesToRadians(twist));
vdFramedControl.BaseControl.ActiveDocument.World2ViewMatrix = mm;
vdFramedControl.BaseControl.ActiveDocument.Redraw(true);
//Verify te values.
vdFramedControl.BaseControl.ActiveDocument.World2ViewMatrix.GetWorldToViewProperties(out v, out azimouth, out tilt, out twist);
twist = Globals.RadiansToDegrees(twist);
tilt = Globals.RadiansToDegrees(tilt);
azimouth = Globals.RadiansToDegrees(azimouth);
vdFramedControl.BaseControl.ActiveDocument.Prompt("\r\n" + azimouth.ToString("0.0000") + "," + tilt.ToString("0.0000") + "," + twist.ToString("0.0000") + " --- " + v.ToString());
vdFramedControl.BaseControl.ActiveDocument.Prompt(null);
Example in VB6 using Wrapper components and TLB Interops
''because in vectordraw wrapper we can not set the WorldToView Matrix directly but only with Axis3dRotations we use the VectorDraw_Professional(VectorDraw.Professional.tlb) and VectorDraw_Geometry(VectorDraw.Geometry.tlb) library to do this.
Dim globals As New vectordraw_geometry.GlobalsInterRop
Private Sub cmdGetView_Click()
Dim document As VectorDraw_Professional.vdDocument
Dim mat As vectordraw_geometry.Matrix
Dim Angle_azimouth As Double
Dim Angle_tilt As Double
Dim Angle_twist As Double
Dim viewdir As vectordraw_geometry.Vector
Set document = VDraw1.ActiveDocument.WrapperObject
Set mat = document.World2ViewMatrix
mat.GetWorldToViewProperties viewdir, Angle_azimouth, Angle_tilt, Angle_twist
azimouth.Text = globals.RadiansToDegrees(Angle_azimouth)
tilt.Text = globals.RadiansToDegrees(Angle_tilt)
twist.Text = globals.RadiansToDegrees(Angle_twist)
End Sub
Private Sub cmdRotate_Click()
VDraw1.CommandAction.View3D "VROT"
End Sub
Private Sub cmdSetView_Click()
Dim mat As New vectordraw_geometry.Matrix
mat.SetToViewAngles globals.DegreesToRadians(CDbl(azimouth.Text)), globals.DegreesToRadians(CDbl(tilt.Text)), globals.DegreesToRadians(CDbl(twist.Text))
Dim document As VectorDraw_Professional.vdDocument
Set document = VDraw1.ActiveDocument.WrapperObject
Set document.World2ViewMatrix = mat
VDraw1.Redraw
End Sub
Private Sub Form_Load()
''set the showAxis on
VDraw1.ShowWCSAxis = UCSICON_Show_Origin
Call cmdSetView_Click
End Sub
Example in C++ 2005
#import "System.Drawing.tlb"
#import "C:\vdraw6\REDIS\x86\VectorDraw.Geometry.tlb"void TestMatrixRotations()
{//Create a new matrix
Cvdmatrix mat=m_Vdraw.CreateInstance(25);
//rotate matrix about x,y,z
mat.RotateX(m_Vdraw.GetUtility().geomDegreesToRad(30));
mat.RotateY(m_Vdraw.GetUtility().geomDegreesToRad(40));
mat.RotateZ(m_Vdraw.GetUtility().geomDegreesToRad(50));//get the interface of VectorDraw Framework manage object.
VectorDraw_Geometry::IMatrixPtr vdfmat = mat.GetWrapperObject();
VectorDraw_Geometry::IVectorPtr direction;
double azimouth,_azimouth;
double tilt,_tilt;
double twist,_twist;
CString str;/// Returns the View Direction and the Angles that define this Matrix.
/// <param name="direction">A Vector defines the camera point offset from the target point.</param>
/// <param name="azimouth">Watching angle on XY plane relative to X axis in radians in clockwise direction.</param>
/// <param name="tilt">Vertical watching angle relative to XY plane in radians.</param>
/// <param name="twist">Rotation of the created matrix from azimouth and tilt , about Z in radians in clockwise direction.</param>
vdfmat->GetWorldToViewProperties(&direction,&azimouth,&tilt,&twist);
_azimouth = m_Vdraw.GetUtility().geomRadToDegrees(azimouth);
_tilt = m_Vdraw.GetUtility().geomRadToDegrees(tilt);
_twist = m_Vdraw.GetUtility().geomRadToDegrees(twist);
str.Format(_T("\nazimouth=%.3f,tilt=%.3f,twist=%.3f"),_azimouth,_tilt,_twist);
OutputDebugString(str);/// Modify this Matrix using azimouth, tilt and twist angles that specify the view direction relative to World Coordinate System.
/// <param name="azimouth">Watching angle on XY plane relative to X axis in radians in clockwise direction.</param>
/// <param name="tilt">Vertical watching angle relative to XY plane in radians.</param>
/// <param name="twist">Rotation of the created matrix from azimouth and tilt , about Z in radians in clockwise direction.</param>vdfmat->SetToViewAngles(azimouth,tilt,twist);
//Verify the azimouth,tilt and twist angles.
vdfmat->GetWorldToViewProperties(&direction,&azimouth,&tilt,&twist);
_azimouth = m_Vdraw.GetUtility().geomRadToDegrees(azimouth);
_tilt = m_Vdraw.GetUtility().geomRadToDegrees(tilt);
_twist = m_Vdraw.GetUtility().geomRadToDegrees(twist);
str.Format(_T("\nazimouth=%.3f,tilt=%.3f,twist=%.3f"),_azimouth,_tilt,_twist);
OutputDebugString(str);}