JpGraph

[voodoonet]

Hi,
I'm using the JpGraph library to make a graphic from a mysql database.
My problem is that i have around 2000 data for one graphic and the label on
X-axis (1,2,3,...,2000) are to small and there are too many .
How can i only print a X label every 10 or 50 ??
I have read the JpGraph manual and they say this:

---

1.1 Adjusting the ticks on a text scale

As can be seen in the previous example (9) the X-axis is slightly cluttered
with the labels very close to each other. We might rectify this by either
enlarging the image or just displaying every second tick label on the
x-axis.

Specifying that we only want to print every second label on the axis is done
by a call to the method

SetTextTicks() as

$graph->xaxis->SetTextTicks(2);

There is one important thing to remember with this. The $datax array must be
adapted to only contain every second value as well! My reasoning behind this
design decision is that when you have many Y-values, perhaps a couple of
hundred, and only wants to have an X label on every 100 you shouldn't have
to specify all the labels you don't use.

So now we also change $datax to

$datax=array("Jan","Mar","Maj","July","Sep");

---

But this work ok for a static array, and my array is dynamic, and I can't
know
if it will have 1000 or 2000 data ...
How can i do that with the mysql database???

Does someone knows another library like Jpgraph that could hel me??

Hope i was clear enought...

Thanks in advance,

Rgds,
Voodoo

[mistcat]

basically you need to just slap a line of code above that set ticks code to figure out something sane. I.E. it will be cludgy but its what I've done:

if($number > 1000)
$ticks = round($number/150);
else if ($number>100)
$ticks = round($number / 75);
else
$ticks = round($number/5);

Does this help?

[voodoonet]

Well it does help a lot, 'cause this will just put less data on the graph.
What i would like is just to have less labels on the X axis.... I mean one label every 10 or 50 just to make them readeable.
I can send u a screen shot if u want.

Thanks anyway
Brgds,
Voodoo