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Date Posted: 21:43:59 02/02/01 Fri
Author: Michel
Subject: Re: Move (translate) and combine TIFF Images
In reply to: John S Robinson 's message, "Move (translate) and combine TIFF Images" on 05:44:11 02/02/01 Fri


Hi John,

You can copy one image to another using the TDibGraphic.Canvas.Draw method. All graphic classes of Envision are derived from TDibGraphic.

What you need to do is to create a new TDibGraphic (or a derived class such as TBitmapGraphic) and call NewImage to set the image format and size of the image. Then you can copy other TDibGraphic images to it using:

NewGraphic.Canvas.Draw( X, Y, SubGraphic );

Another approach would be to copy pixel by pixel using the TDibGraphic.RGB property, but using the canvas will give you the simplest code.

Best regards,

Michel

>I want to be able to assemble a number of images (I
>have TIFFs at the moment) into a larger image.
>
>I have looked for function to move an image, or to
>copy one image into another at given co-ordinates, but
>I can't see it.
>
>Am I missing something, or is this something Envision
>is not (at the moment) suitable for.
>
>John S Robinson Tel:
>+44-1904-433833
>University of York Computing Service Fax:
>+44-1904-433740
>Heslington, YORK. YO10 5DD email:
>jsr1@york.ac.uk
>www-users.york.ac.uk/~jsr1 - but I wouldn't bother
>if I were you

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