how do i stop the curser of an an XY graph from draging less than zero

[vivi]

what i am trying to do is stop the curser from dragging left beyond zero in the x direction.

tks.

[chilly_charly]

Right click on the graph > Advanced > uncheck "cursors scroll graph".

Now, if you wish to still be able to scroll in the other direction, that's another problem... Is that what you need ?

[vivi]

what i need to do is to have the curser move both left and right but not let the curser drag beyond zero

[chilly_charly]

Unchecking "cursor scroll graph" still allow to drag the cursor, but you when you'll reach the graph side, the graph will not scroll. Unless you plan to present points with neagtive X's values, that the cursor should not reach, I think that's what you were looking for.

[vivi]

i need the curser to drag the right side of the plot so that i can see more data

[chilly_charly]

Here is a solution in LV 8 : it uses the move cursor event node. When the cursor position is less than zero, it reset both the cursor position and the X axis minimum value to zero.

[vivi]

the thing is that i need to do this in 7.0 format

[chilly_charly]

I don't have LV at hand right now, but I believe that the cursor move event was not availaible in LV7. Therefore, you need to use the mouse move event, read the cursor position and if X<0 then set X cursor position to 0 and Xmin to zero.

[vivi]

tks i will try that

[vivi]

that did not work because it then makes the x maximum number get closer and closer to zero