Hot to get annotations informations?

we are using trial version of GM 4.0 for .NET, in order to test it for a new VB .NET application. According to help file and samples it looks like GM 4.0 .NET is very close to what we need. The main scope of the application is that we need a viewer and we need annotations on images.

We did a sample with a bitmapViewer control and a VObjectsRubberband object. We have also a toolbar button and when pressed, user can make a Rectangle exactly as Multilayer Image Editor Demo does.

What we want to do is to get informations about this Rectangle(x and z position, width and height) immediately after its creation and also after its size or posizion changed, so we can programmatically draw it again later.

Any ideas how to get those informations?

fir

'Here is what happens when toolbar button for rectangle is pressed
Private Sub tbrRectancleAnnotation_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tbrRectancleAnnotation.Click
        ClearAddObjectToggle(tbrRectancleAnnotation)
        AddNewObject(New Aurigma.GraphicsMill.WinControls.RectangleVObjectCreateDesigner)
End Sub 

Private Sub ClearAddObjectToggle(ByVal exceptOfObject As ToolStripButton)
        Dim buttons() As ToolStripButton = {tbrRectancleAnnotation}
        For Each obj As ToolStripButton In buttons
            If Not obj Is exceptOfObject Then
                obj.Checked = False
            Else
                obj.Checked = True
            End If
        Next
End Sub

Private Sub AddNewObject(ByVal designer As Aurigma.GraphicsMill.WinControls.IDesigner)
        If TypeOf designer Is Aurigma.GraphicsMill.WinControls.ImageVObjectCreateDesigner Then
            Dim imageDesigner As Aurigma.GraphicsMill.WinControls.ImageVObjectCreateDesigner = CType(designer, _
                Aurigma.GraphicsMill.WinControls.ImageVObjectCreateDesigner)
            ClearAddObjectToggle(Nothing)
        End If       
        VObjectsRubberband1.CurrentDesigner = designer
End Sub

 Private Sub VObjectsRubberband1_CurrentLayerChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles  
        VObjectsRubberband1.CurrentLayerChanged
        MsgBox("current layer changed")
End Sub

Since here everything works fine and annotation is created and be changed. We noticed that all changes(moving, resizing, etc) activates VObjectsRubberband1_CurrentLayerChanged event.

Is there any idea hot to get those informations we need for each one annotation?

fir

Edited by user Tuesday, December 18, 2007 4:00:23 AM(UTC)  | Reason: Not specified

Everything is correct in your code, except one moment - you shouldn't serialize and deserialize workspace dimensions while working with BitmapViewer. Workspace size of BitmapViewer is always equal to the size of the loaded bitmap. Because of that you cannot change values of the WorkspaceWith or WorkspaceHeight properties in contrast to MultiLayerViewer.

You should also comment out 2 corresponding lines in SaveTemplateToFile() method. Otherwise this additional bytes will cause error during layers deserialization.

The matter is that after deserialization VObjectsRubberband has no selected layer. So you should add the following lines of code in your OpenTemplateFromFile() method:

If VObjectsRubberband1.Layers.Count > 0 Then
     VObjectsRubberband1.CurrentLayerIndex = 0
End If

Edited by user Tuesday, December 18, 2007 4:01:34 AM(UTC)  | Reason: Not specified

Just curiously, why don't you use MultiLayerViewer object?