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Date Posted: 07:47:51 11/08/00 Wed
Author: Michel
Subject: Re: Rotating image
In reply to: John Taylor 's message, "Rotating image" on 10:23:43 11/07/00 Tue

Hi John,

Yes, it is possible to rotate an image without displaying it, nor using the TImageScrollBox. With multipage files though, you will need to create a new file, as you can only append to the end of a file. Here is a basic structure to do this:


SourceGraphic : TTiffGraphic;
DestGraphic : TTiffGraphic;

SourceFile : TFileStream;
DestFile : TFileStream;


SourceFile := TFileStreamCreate.Create(..., fmOpenRead);
DestFile := TFileStream.Create(..., fmCreate);

for ImageNo := 1 to SourceFile.GetImageCount(SourceFile) do
SourceGraphic.SingleLoadFromStream( SourceFile, ImageNo );

create a TRotateTransform with appropriate angle

RotateTransform.ApplyOnDest( SourceGraphic, DestGraphic );



> Hello Michel,
> I am a new user. Is there an easy way to rotate a
> particular page in a multi-page tiff and then save the
> result without displaying the image at all or using
> ImageScrollbox at all ?
> thanks.

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  • Re: Rotating image -- Chinthaka, 06:16:47 12/18/00 Mon
  • Re: Rotating image -- Michel, 07:27:25 12/18/00 Mon
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