Re: Resize annotations on image rotating.

Hello,
I'm using LeadTools Document Imaginig 16.5 on VisualStudio2012 (C# .Net 3.5)
I have a WindowsForm, with RasterImageViewer
Everything is made "programmatically", i don't have (and don't want) user interaction.When i build
- I load a TIFF image on the RasterImageViewer
- I create the AnnAutomation
- I create a AnnLineObject
- I move the AnnLine up and down, on Y axis, programmatically... changing its start and and point, and invalidating the RasterImageViewer


Sometimes, depenging on some conditions, i have to rotate the TIFF image... tipically, from portrait to landscape.... or from landscape to portrait.
In this case i'd like to "resize" the AnnLine to the new width...
Now... i thought it was enough to change the EndPoint and invalidate the viewer.... but it doesn't work.... if i rotate the image and then i move the line, the line width doesn't increase.
I don't understand where i'm wrong...

Here's some code:

//this is the creation of the AnnAutomationManager
_GLOB_AnnAutomationManager = new AnnAutomationManager();
_GLOB_AnnAutomationManager.CreateDefaultObjects();

//this is the image rotation code:
ImmagineCentrale.Image.RotateViewPerspective(-90);
       
//this is the creation of automation and Line
AnnAutomation automation = new AnnAutomation(GLOB_AnnAutomationManager, ImmagineCentrale);
automation.Active = true;
AnnLineObject line = new AnnLineObject();
line.Name = "";
line.Pen = new AnnPen(Color.Red, new AnnLength(3, AnnUnit.Pixel));
line.StartPoint = new AnnPoint(0, 0, AnnUnit.Pixel);
line.EndPoint = new AnnPoint(ImmagineCentrale.Image.Width, 0, AnnUnit.Pixel);
ImmagineCentrale.Invalidate();
           
//this is the code i've used to "resize" the Line after the image is rotated
AnnLineObject righello = GLOB_AnnAutomationManager.Automations[0].Container.Objects[0] as AnnLineObject;
righello.StartPoint = new AnnPoint(0, 0, AnnUnit.Pixel);
righello.EndPoint = new AnnPoint(ImmagineCentrale.Image.Width, 0, AnnUnit.Pixel);
if (ImmagineCentrale.Image.IsRotated)
       righello.EndPoint = new AnnPoint(ImmagineCentrale.Image.Height, 0, AnnUnit.Pixel);
ImmagineCentrale.Invalidate();
                     

I think it's because, when rotating the image, the "new" endpoing of the
line, is outside the margin of the AnnAutomation or something like that....
Should i destroy and create, or resize the AnnAutomationManager or the AnnAutomation objects?

Thanks

Andrea.

The RotateViewPerspective() method doesn't update the image's physical width and height. It only changes the image's ViewPerspective.
To resolve the problem on your side, use the Leadtools.ImageProcessing.RotateCommand class to rotate the image instead of using RotateViewPerspective.

Thanks,
Maen Badwan
LEADTOOLS Technical Support