// version 2010-05-23: to solve the issue in Perspective View
private void m_MouseEvents_OnMouseMove(Inventor.MouseButtonEnum Button, Inventor.ShiftStateEnum ShiftKeys, Inventor.Point ModelPosition, Inventor.Point2d ViewPosition, Inventor.View View)
{
//if the interaction event is MyScreenshot, draw selecting rectangle.
if (m_InteractionEvents.Name == "MyScreenshot" && m_flagMouseDown)
{
TransientGeometry tg = m_inventorApplication.TransientGeometry;
Inventor.Point P1 = tg.CreatePoint(m_MouseStartViewPt.X, -m_MouseStartViewPt.Y, 0);
Inventor.Point P3 = tg.CreatePoint(ViewPosition.X, -ViewPosition.Y, 0);
Inventor.Point P4 = tg.CreatePoint(P1.X, P3.Y, 0);
Inventor.Point P2 = tg.CreatePoint(P3.X, P1.Y, 0);
//update coordinates
oCoordSet[1] = P1;
oCoordSet[2] = P2;
oCoordSet[3] = P3;
oCoordSet[4] = P4;
oCoordSet[5] = P1;
//add line strip
if (oGiLineStripG != null)
{
//SetTransformBehavior, default value for PixelScale is 1
oGiLineStripG.SetTransformBehavior(P1, DisplayTransformBehaviorEnum.kFrontFacingAndPixelScaling, 1);
oGiLineStripG.SetViewSpaceAnchor(P1, m_MouseStartViewPt, ViewLayoutEnum.kTopLeftViewCorner);
}
else if (oGiLineG != null)
{
//SetTransformBehavior, default value for PixelScale is 1
oGiLineG.SetTransformBehavior(P1, DisplayTransformBehaviorEnum.kFrontFacingAndPixelScaling, 1);
oGiLineG.SetViewSpaceAnchor(P1, m_MouseStartViewPt, ViewLayoutEnum.kTopLeftViewCorner);
}
m_inventorApplication.ActiveView.Update();
}
}
private void m_MouseEvents_OnMouseUp(Inventor.MouseButtonEnum Button, Inventor.ShiftStateEnum ShiftKeys, Inventor.Point ModelPosition, Inventor.Point2d ViewPosition, Inventor.View View)
{
//if the interaction event is MyScreenshot, create the image
if (m_InteractionEvents.Name == "MyScreenshot")
{
m_InteractionEvents.InteractionGraphics.PreviewClientGraphics.Delete();
m_inventorApplication.ActiveView.Update();
if (oGiLineStripG != null)
{
oGiLineStripG.Delete();
oGiLineStripG = null;
}
if (oGiLineG != null)
{
oGiLineG.Delete();
oGiLineG = null;
}
//stop interaction event
m_InteractionEvents.SetCursor(CursorTypeEnum.kCursorBuiltInArrow);
m_flagMouseDown = false;
if (m_MouseEvents != null)
{
m_MouseEvents.OnMouseDown -= m_MouseEvents_OnMouseDown;
m_MouseEvents.OnMouseMove -= m_MouseEvents_OnMouseMove;
m_MouseEvents.OnMouseUp -= m_MouseEvents_OnMouseUp;
m_MouseEvents = null;
}
m_InteractionEvents.Stop();
m_InteractionEvents = null;
//prepare size of the image region, in pixel
oSize = new Size(Convert.ToInt32(Math.Abs(ViewPosition.X - m_MouseStartViewPt.X)), Convert.ToInt32(Math.Abs(ViewPosition.Y - m_MouseStartViewPt.Y)));
if (ViewPosition.X > m_MouseStartViewPt.X & ViewPosition.Y > m_MouseStartViewPt.Y)
{
oCornerPt = m_MouseStartViewPt;
}
else if (ViewPosition.X > m_MouseStartViewPt.X & ViewPosition.Y < m_MouseStartViewPt.Y)
{
oCornerPt.X = m_MouseStartViewPt.X;
oCornerPt.Y = ViewPosition.Y;
}
else if (ViewPosition.X <m_MouseStartViewPt.X& ViewPosition.Y> m_MouseStartViewPt.Y)
{
oCornerPt.X = ViewPosition.X;
oCornerPt.Y = m_MouseStartViewPt.Y;
}
else
{
oCornerPt = ViewPosition;
}
//take the view position in screen, calculate
//the real pixel data of the corners
oCornerPt.X = (int)View.Left + oCornerPt.X;
oCornerPt.Y = (int)View.Top + oCornerPt.Y;
}
}
private void m_MouseEvents_OnMouseDown(Inventor.MouseButtonEnum Button, Inventor.ShiftStateEnum ShiftKeys, Inventor.Point ModelPosition, Inventor.Point2d ViewPosition, Inventor.View View)
{
//if the interaction event is MyScreenshot,
//then get the view position and model position
if (m_InteractionEvents.Name == "MyScreenshot")
{
m_MouseStartViewPt = ViewPosition;
m_StartModelPt = ModelPosition;
m_flagMouseDown = true;
//clean the last graphics
m_InteractionEvents.InteractionGraphics.PreviewClientGraphics.Delete();
m_inventorApplication.ActiveView.Update();
//gi node
oGiNode = m_InteractionEvents.InteractionGraphics.PreviewClientGraphics.AddNode(1);
oCoordSet = m_InteractionEvents.InteractionGraphics.GraphicsDataSets.CreateCoordinateSet(1);
//color set
oColorSet = m_InteractionEvents.InteractionGraphics.GraphicsDataSets.CreateColorSet(1);
oColorSet.Add(1, 255, 0, 0);
TransientGeometry tg = m_inventorApplication.TransientGeometry;
Inventor.Point tempP = tg.CreatePoint(ViewPosition.X, ViewPosition.Y, 0);
oCoordSet.Add(1, tempP);
oCoordSet.Add(2, tempP);
oCoordSet.Add(3, tempP);
oCoordSet.Add(4, tempP);
oCoordSet.Add(5, tempP);
try
{
if (oGiLineStripG != null)
{
oGiLineStripG.Delete();
oGiLineStripG = null;
}
oGiLineStripG = oGiNode.AddLineStripGraphics();
oGiLineStripG.CoordinateSet = oCoordSet;
oGiLineStripG.ColorSet = oColorSet;
oGiLineStripG.BurnThrough = true;
}
catch (Exception ex)
{
//a problem in Inventor 2009( R13 ) with
//LineStripGraphics.BurnThrough. Use LineGraphics as workaround
if (oGiLineG != null)
{
oGiLineG.Delete();
oGiLineG = null;
}
oGiLineG = oGiNode.AddLineGraphics();
oGiLineG.CoordinateSet = oCoordSet;
oGiLineG.ColorSet = oColorSet;
oGiLineG.BurnThrough = true;
}
}
}
