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VOID dates not allowed
http://wiki.pchart.net/forum/viewtopic.php?f=5&t=213		 Page 1 of 1
Author:  runger [ Wed Feb 09, 2011 3:24 pm ]
Post subject:  VOID dates not allowed
Hi JD,

I try to draw date-values which may have some breaks or ends with VOID values, which I put as VOID in the array.
This results in
Quote:
Warning: date() expects parameter 2 to be long, string given in ..\pChart2\class\pDraw.class.php on line 2747

which is in the function scaleFormat

Any idea for workaound?

Thanks in advance

Reimar
Author:  jean-damien [ Wed Feb 09, 2011 3:51 pm ]
Post subject:  Re: VOID dates not allowed
Good afternoon,

I have difficulties to understand how a timestamp serie can contains VOID values ;o)

To get ride of the error message (and make this function a bit more robust) you can add this test just after the function declaration :

Code:
   function scaleFormat($Value,$Mode=NULL,$Format=NULL,$Unit=NULL)
    {
     if ( $Value == VOID ) { return(""); }


I've commited the change in the next sub release.

Kind regards,
JD.
Author:  runger [ Wed Feb 09, 2011 4:10 pm ]
Post subject:  Re: VOID dates not allowed
Thanks for the quick reply,

I will test it.

To help you understanding:

I want to do an Milestone Trend Analysis.
i.e. like this
http://help.sap.com/saphelp_45b/helpdata/en/e1/dde8d801c311d2b6240000e8359ebc/content.htm
Author:  jean-damien [ Wed Feb 09, 2011 4:46 pm ]
Post subject:  Re: VOID dates not allowed
This looks interesting (found an easier interpretation here http://www.crestsoft.com/cswmilestn.htm). This is a family of charts that I may implement in the future trough a class extension.

JD.
Author:  runger [ Wed Feb 09, 2011 4:48 pm ]
Post subject:  Re: VOID dates not allowed
Hi JD,

I solved it. VOID in the php environment is an a constant declared by yourself. Since php is not my first programming language I didn't noticed that, and I wondered why it doesn't work. So if I include your libraries at the very begining all is fine. Sorry for the in inconvenience.

Reimar
Author:  jean-damien [ Wed Feb 09, 2011 4:53 pm ]
Post subject:  Re: VOID dates not allowed
That is correct! The PHP NULL constant is equal to 0 so I wasn't able to use it safely.

No problemo! Happy to help ;o)
Author:  runger [ Wed Feb 09, 2011 5:03 pm ]
Post subject:  Re: VOID dates not allowed
Yes,

Milestone Trend Analysis may also be found at Wiki (at least in the German one).

One thing to highlight is that there is normally a diagonal from down left to up right. If a milestoneline cross it - the milestone took place and becomes uninteresting. If you are delayed the milestone will shift to the top.
This makes it very illustrative.

Reimar
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