Tracing points on mouse drag event

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csarami@gmail.com - 15 Nov 2006 17:12 GMT

Dear All,

Assume that you have Image (m by n) uploaded. You left-click on mouse
and drag a curve while ur pressing on left button.

How can i retrieve the list of points ( i,j) where the mouse has gone
over.

thanks much in advance.

regards,

chekad

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Michael Rauscher - 15 Nov 2006 18:24 GMT

csarami@gmail.com schrieb:

> Dear All,
>
[quoted text clipped - 3 lines]
> How can i retrieve the list of points ( i,j) where the mouse has gone
> over.

Combine a MouseListener with a MouseMotionListener and store the
locations you get by MouseEvents in mouseDragged and mouseClicked.

Bye
Michael

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Fred Kleinschmidt - 15 Nov 2006 18:33 GMT

> Dear All,
>
[quoted text clipped - 9 lines]
>
> chekad

Register a MouseListener and a MouseMotionListener.
Note, however, that it is possible that you will not capture
every pixel crossed by the user - it may depend on how fast she
moves the mouse.

Signature

Fred L. Kleinschmidt
Boeing Associate Technical Fellow
Technical Architect, Software Reuse Project

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