Can the CENTER OF ROTATION be set / changed within Adjust.ImageCommands.Rotate?

All --

Can the CENTER OF ROTATION be set / changed within the Adjust.ImageCommands.Rotate command?

If I have the XY location that I would like to use as the CENTER OF ROTATION and I have the ANGLE, is there a way to format the Adjust.ImageCommands.Rotate command to operate on an arbitrary point?

My work with the Adjust.ImageCommands.Rotate command indicates it performs the rotate based on the CENTER OF THE IMAGE.

I would like to rotate an image around a CENTER OF ROTATION that is with the ORIGINAL IMAGE but that is probably not the CENTER OF THE IMAGE.

I have looked at

    Image-Pro Premier Automation Help

    Rotate Class
    Automation ReferenceMediaCy.Commands.Image ► Rotate

but I don't see anything that looks like a way to set / change the CENTER OF ROTATION.

The SCREEN CAPTURE below illustrates this question with:

    ** A as the ORIGINAL IMAGE
    ** B as the current result of performing a 32 deg CCW ROTATION of A
    ** C as the desired result with the center of the OBJECT in the CENTER OF THE IMAGE without losing any pixels from A.

Each of these images (all displayed at ZOOM = 80%) has:

    ** A LINE through the center axis of the object (giving us the OBJECT ANGLE and the OBJECT CENTER)
    ** A POINT at that CENTER OF THE IMAGE

Right now it takes several operations to make the OBJECT be VERTICAL and CENTERED.  I'm hoping that Adjust.ImageCommands.Rotate can be called in a way that will make this happen in one operation.

Thanks.

-- Matt




Best Answers

  • Accepted Answer
    The center of rotation is the center of the ROI (or the ROI bounding rectangle if the ROI is irregular or has multiple regions).  Thus, if you place a symmetrical ROI about your desired center of rotation, you will get that location as the center of the new, rotated image.

    This will work so long as you are willing to lose part of the original image (as in your example, where I assume that you are only interested in the ROI surrounding the card).

    If you need to keep the whole image, but rotate it about some point other than the image center, then you have no choice but to do essentially what you have done in your example.  That is, you can rotate the image but then as a second step you need to create a larger image and paste the rotated image into it where you want it to end up (McImage.Geometry.Paste will do the job for you).
  • Accepted Answer
    Also, instead of creating a new image and Paste, as Craig described, you can expand the image in given direction using the Canvas function.

    Regards,

    Yuri

Answers

  • Craig and Yuri --

    Thank you for your responses.

    I think the combination will solve the problem.

    Thanks again.

    -- Matt
  • Craig and Yuri --

    After working with the information you provided, I have generated CODE (see below) that accomplishes the task I need.

    Here is a SCREEN CAPTURE with A, B, and C images and the data that was extracted from them.




    I have attached a copy of "A +.JPG" so anyone interested can work with this example.  The DOTS can be found with a BRIGHT THRESHOLD.

    Some code CODE to LOCK (SYNC) ZOOM and then UNLOCK EVERYTHING would be helpful.

    The LOCK and UNLOCK code that I generated with the MACRO RECORDER had an issue.  It did not seem to just LOCK the ZOOM and it errored when the UNLOCK was executed.  That is why the UNLOCK statements are commented.  I see LOCKSELECTED but I haven't investigated using it.  Perhaps someone could suggest a resolution to that issue.

    I hope this information is helpful to PREMIER PROGRAMMERS.

    Thanks.

    -- Matt

    *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
        Public Sub TestTranslateAndRotate()
    
            TranslateAndRotate (25, 47, 21.98)
    
        End Sub
    
    
        Private Sub TranslateAndRotate (Param_TranslateX As Double, Param_TranslateY As Double, Param_RotationAngle As Double)
    
            'Declare local variables
            Dim docA, imageA, windowA
            Dim docB, imageB
            Dim docC, imageC
            Dim docD, imageD
    
            'Connect with the original image A
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageA)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageA, docA)
            End With
    
            'Delete any rois that may be active in image A
            With Select.RoiCommands.DeleteAll(Nothing)
                .Run(docA)
            End With
    
            'Determine the dimensions for image B (translated but not rotated)
            Dim MyNewW, MyNewH As Integer
            MyNewW =
                ThisApplication.ActiveImage.Width + Param_TranslateX * 2
            MyNewH =
                ThisApplication.ActiveImage.Height + Param_TranslateY * 2
    
            'Call CANVAS to create image B with enough space to move the CENTER OF OBJECT to CENTER OF IMAGE without losing any pixels
            With Adjust.ImageCommands.Canvas(Nothing)
                .Anchor = Image.CanvasAnchor.BottomRight
                .Size = New System.Drawing.Size(MyNewW,MyNewH)
                .Background = System.Drawing.Color.FromArgb(CType(0, Byte),CType(0, Byte),CType(0, Byte))
                .AverageBackground = False
                .Visible = True
                .Run(docA, imageB)
            End With
    
            'Connect with image B
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageB)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageB, docB)
            End With
    
            'Call ROTATE
            With Adjust.ImageCommands.Rotate(Nothing)
                .Orient = Image.OrientType.RotateAngle
                .Angle = -1 * Param_RotationAngle
                .Clip = MediaCy.IQL.Operations.mcWarpClip.mcwcNoClip
    '            .Clip = MediaCy.IQL.Operations.mcWarpClip.mcwcNoBoundsTransform
                .Visible = True
                .Run(docB, imageC)
            End With
    
            'Connect with image C
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageC)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageC, docC)
            End With
    
            'Activate the images in the appropriate sequence
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageC, docC)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageB, docB)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageA, docA)
            End With
    
            'Align the images A, B, C
            With Application.WindowCommands.Align(Nothing)
                .MRU = True
                .Columns = 3
                .Rows = 1
                .Run()
            End With
    
            'Lock (link) all windows together to adjust the ZOOM
            With Application.WindowCommands.LockAll(Nothing)
                .Run()
            End With
    
            'Connect with imageA
            With Application.WindowCommands.Define(Nothing)
                .Run(docA, windowA)
            End With
    
            'Set the ZOOM for A (B and C) to .8
            With View.ImageViewCommands.Options(Nothing)
                .View.Magnification = 0.8R
                .View.AutoZoomMode = MediaCy.IQL.Display.Viewer.mcAutoZoomMode.mazmNone
                .View.Pan = 1
                .Run(windowA)
            End With
    
    '        'Unlock (unlink) all windows
    '        With Application.WindowCommands.unlock(Nothing)
    '            .Run()
    '        End With
    
        End Sub
    






  • edited May 2016
    All --

    There is a problem with the
        TranslateAndRotate 
    I posted earlier.

    In that version, the CENTER OF ROTATION needs to be in the QUADRANT of the IMAGE that is ABOVE and LEFT of the CENTER OF THE IMAGE so that the

        .Anchor = Image.CanvasAnchor.BottomRight
    is the correct option.

    To deal with CENTER OF ROTATION point in the other QUADRANTS of the IMAGE I have revised
        TranslateAndRotate 
    to use
        .Anchor = Image.CanvasAnchor.TopLeft
    .Anchor = Image.CanvasAnchor.TopRight
    .Anchor = Image.CanvasAnchor.BottomLeft
    .Anchor = Image.CanvasAnchor.BottomRight
    when appropriate.

    The revised version of
        TranslateAndRotate 
    is below.

    This version of the routine also tests PREMIER and arranges the images in a manner appropriate to the  MDI (MULTIPLE DOCUMENT INTERFACE) MODE vs the DOCKING MODE.

    I hope this information is helpful.

    -- Matt

    *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

        Private Sub TranslateAndRotate (Param_TranslateX As Double, Param_TranslateY As Double, Param_RotationAngle As Double)
    
            'Declare local variables
            Dim docA, imageA, windowA
            Dim docB, imageB
            Dim docC, imageC
    
            'Connect with the original image A
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageA)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageA, docA)
            End With
    
            With Application.WindowCommands.Define(Nothing)
                .Run(docA, windowA)
            End With
    
            'Adjust the size if image A
            With View.ImageViewCommands.Options(Nothing)
                .View.Magnification = 2R
                .View.AutoZoomMode = MediaCy.IQL.Display.Viewer.mcAutoZoomMode.mazmBestFit
                .Run(windowA)
            End With
    
            'Perform a TILE to place A in the upper left corner
            Application.MDICommands.TileVertically(Nothing).Run()
    
            'Delete any rois that may be active in image A
            With Select.RoiCommands.DeleteAll(Nothing)
                .Run(docA)
            End With
    
            'Determine the dimensions for image B (translated but not rotated)
            Dim MyNewW, MyNewH As Integer
            MyNewW =
                ThisApplication.ActiveImage.Width + Abs(Param_TranslateX) * 2
            MyNewH =
                ThisApplication.ActiveImage.Height + Abs(Param_TranslateY) * 2
    
            'Call CANVAS to create image B with enough space to move the CENTER OF OBJECT to CENTER OF IMAGE without losing any pixels
    
            If (Param_TranslateX > 0 And Param_TranslateY > 0) _
                Then
    
                    With Adjust.ImageCommands.Canvas(Nothing)
                        .Anchor = Image.CanvasAnchor.BottomRight
                        .Size = New System.Drawing.Size(MyNewW,MyNewH)
                        .Background = System.Drawing.Color.FromArgb(CType(0, Byte),CType(0, Byte),CType(0, Byte))
                        .AverageBackground = False
                        .Visible = True
                        .Run(docA, imageB)
                    End With
    
            End If
    
            If (Param_TranslateX > 0 And Param_TranslateY < 0) _
                Then
    
                    With Adjust.ImageCommands.Canvas(Nothing)
                        .Anchor = Image.CanvasAnchor.TopRight
                        .Size = New System.Drawing.Size(MyNewW,MyNewH)
                        .Background = System.Drawing.Color.FromArgb(CType(0, Byte),CType(0, Byte),CType(0, Byte))
                        .AverageBackground = False
                        .Visible = True
                        .Run(docA, imageB)
                    End With
    
            End If
    
            If (Param_TranslateX < 0 And Param_TranslateY < 0) _
                Then
    
                    With Adjust.ImageCommands.Canvas(Nothing)
                        .Anchor = Image.CanvasAnchor.TopLeft
                        .Size = New System.Drawing.Size(MyNewW,MyNewH)
                        .Background = System.Drawing.Color.FromArgb(CType(0, Byte),CType(0, Byte),CType(0, Byte))
                        .AverageBackground = False
                        .Visible = True
                        .Run(docA, imageB)
                    End With
    
            End If
    
            If (Param_TranslateX < 0 And Param_TranslateY > 0) _
                Then
    
                    With Adjust.ImageCommands.Canvas(Nothing)
                        .Anchor = Image.CanvasAnchor.BottomLeft
                        .Size = New System.Drawing.Size(MyNewW,MyNewH)
                        .Background = System.Drawing.Color.FromArgb(CType(0, Byte),CType(0, Byte),CType(0, Byte))
                        .AverageBackground = False
                        .Visible = True
                        .Run(docA, imageB)
                    End With
    
            End If
    
            'Connect with image B
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageB)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageB, docB)
            End With
    
            'Call ROTATE
            With Adjust.ImageCommands.Rotate(Nothing)
                .Orient = Image.OrientType.RotateAngle
                .Angle = -1 * Param_RotationAngle
                .Clip = MediaCy.IQL.Operations.mcWarpClip.mcwcNoClip
    '            .Clip = MediaCy.IQL.Operations.mcWarpClip.mcwcNoBoundsTransform
                .Visible = True
                .Run(docB, imageC)
            End With
    
            'Connect with image C
            With Application.DocumentCommands.ActiveImage(Nothing)
                .Run(imageC)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageC, docC)
            End With
    
            'Activate the images in the appropriate sequence and close the
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageC, docC)
            End With
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageB, docB)
            End With
    
            'Close B without prompting the user
            ThisApplication.ActiveImage.Modified = False
            ThisApplication.ActiveImage.Close()
    
            With Application.DocumentCommands.Activate(Nothing)
                .Run(imageA, docA)
            End With
    
            'Arrange the open images A, C
            If ThisApplication.MDISupport = True _
                Then
    
                    'MDI MODE
                    Application.MDICommands.TileVertically(Nothing).Run()
    
                Else
    
                    'DOCKING MODE
                    With Application.WindowCommands.Align(Nothing)
                        .MRU = True
                        .Columns = 3
                        .Rows = 1
                        .Run()
                    End With
    
                End If
    
            'Lock (link) all windows together to adjust the ZOOM
            With Application.WindowCommands.LockAll(Nothing)
                .Run()
            End With
    
            'Set the ZOOM for A (B and C) to .8
            With View.ImageViewCommands.Options(Nothing)
                .View.Magnification = 0.8R
                .View.AutoZoomMode = MediaCy.IQL.Display.Viewer.mcAutoZoomMode.mazmNone
                .View.Pan = 1
                .Run(windowA)
            End With
    
    '        'Unlock (unlink) all windows
    '        With Application.WindowCommands.unlock(Nothing)
    '            .Run()
    '        End With
    
        End Sub
    
    
    

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