xy graph - x axis range setting

[Stefano Moret]

Hi!

I've a problem with XY charts: since I want to get on the x axis a constant range of time (current time - 6h; current time + 4h), I've tried to set this property using the property nodes for x axis maximum and minimum. 

But something goes wrong (the requested value id DBL, and if I pass from a time stamp to string and then to DBL i miss the information I need).

Any suggestion?

[I've posted in the wrong section; dear moderator, can you please move this post to the correct one?? thanks, sorry for the mistake]

Message Edited by Stefano Moret on 07-29-2009 06:38 PM

[matteobr]

Hi Stefano,

I want to suggest you these links that I feel good for your issue:

http://digital.ni.com/public.nsf/allkb/F85BB1749748F6CC862562D700787330?OpenDocument

http://digital.ni.com/public.nsf/allkb/7DEA2A466A4F9D2586256ACB005D0BC0?OpenDocument

http://digital.ni.com/public.nsf/allkb/0A4899EF6D01B9C5862568B70074F989?OpenDocument

http://zone.ni.com/devzone/cda/tut/p/id/7664

Hope this help,

M

[Stefano Moret]

I've already read them. I can't find what I need inside.

I've understood that the best for my application is to use waveform charts.

But... I need to add some continuous horizontal lines inside (like cursor).

How can I do??

[Albert.Geven]

Hi

Either you can use a cursor that does not show its vertical line or you add a plot that has two coordinates, the begin x0,y0 with x presumably zero and y the height of the horizontal line, and the endpoint with the same y and an x of the correct value.

goodluck

[Stefano Moret]

Ok, that's a good idea.

So, using cursors (available only on graph), how can I hide the vertical cursor?

[Albert.Geven]

You can select several types of cursor, look in the help.

[Stefano Moret]

Oh, thanks.. It seems easy, but it's not difficult at all 🙂