Annotation to Bitmap.

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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Wednesday, November 29, 2006 1:09:35 PM(UTC)

marasma

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Posts: 51

I need to convert an annotation like line, polyline or rectangle in one bit bitmap on a white background and then apply a blended image. Analyzing the problem I suppose to have this steps:

1) Draw the annotation (ok no problem)
2) Create a bitmap of the dimension of the boundingrectangle of the annotation and fill it with the desidered color (ok no problem)
3) Transform annotation in the bitmap and past in the image created at point 2. (how can I do?)
4) Combine image at point 3 with another image and apply a blend effect. (ok no problem)

Is this the right way? If yes, how can do the point 3?

I'm using LT14.5 with VB.NET.


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#2 Posted : Wednesday, November 29, 2006 11:35:59 PM(UTC)

Maen Hasan

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Posts: 1,326

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Hello,

You need to crate the same annotation object on the image created at point 2, and then burn it.
The details depend on the programming interface that you use.

For example, if you are using LEADTOOLS .Net programming interface, and you have AnnLineObject, you can create it on the image created at point 2 by using the .Create Method. Then you can burn the annotation object by using the AnnAutomation.Realize Method.

Thanks,
Maen Badwan
LEADTOOLS Technical Support

#3 Posted : Wednesday, November 29, 2006 11:40:10 PM(UTC)

marasma

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Posts: 51

Hi,
but I don't use AnnAutomatin object, I use manual mode for manage annotation and I can't find a corresponding method to AnnAutomation.Realize, is there?

Thanks!

#4 Posted : Thursday, November 30, 2006 2:45:46 AM(UTC)

Maen Hasan

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Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

Hello,

You can try to realize the annotation object by calling the .Draw method as follows:
----------------------
Object.Draw(RasterImageViewer1.Image.CreateGdiPlusGraphics().Graphics)
----------------------

Thanks,
Maen Badwan
LEADTOOLS Technical Support

#5 Posted : Monday, December 18, 2006 1:08:23 PM(UTC)

marasma

Groups: Registered
Posts: 51

Hi,
now it's all right, bur I've the last problem. If I burn the annotations and display the image, the annotations appear smaller then before the burning process, but in the same relative position. See the attached images. Which is the problem?

File Attachment(s):

example.zip (1,204kb) downloaded 33 time(s).

#6 Posted : Tuesday, December 19, 2006 2:41:20 AM(UTC)

Maen Hasan

Groups: Registered, Tech Support
Posts: 1,326

Was thanked: 1 time(s) in 1 post(s)

Hello,

I investigated about this issue. The Draw method draws the AnnObject on the image using the actual dimensions of the object.
To realize the object as you want, you need to use the AnnAutomation with the Realize Method.

Thanks,
Maen Badwan
LEADTOOLS Technical Support

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