How can I keep cursor stable when moving X scroll?

[hugoliang]

Dear All,

       How can I keep cursor stable in the graph when moving X scroll?

       Normally, the cursor is moving while moving X scroll, because the X scroll changes.

Thank you!

[GerdW]

Hi Hugo,

the cursor has it's x- and y-coordinate. If you move the x scroll-bar, the cursor moves too.

To avoid this you have to move the cursor with the x scroll bar. To do so you have to get the cursor position and the x-scale min/max before movement. While movement you have to calculate a new cursor position relativ to the new x-scale and set the cursor accordingly. (Problems may arise if the cursor is connected to a plot...)
That's what property nodes are used for!

Message Edited by GerdW on 09-01-2006 10:14 AM

[hugoliang]

Thank you for your reply.

Do you think it is too complex? Is there any easy way? And I think there is no event case of moving X scroll.

Thank you.