Zooming the graphs

[manohar]

Hi,

I would like to put some link below graph to Zoom In and Out. I can see if I change the value of width and height in the database, I see the effect. Is there any way I can send some parameters through the link so that :

- In general it will show the default size
- If clicked on Zoom in, it shall increase the height and weight with some value
- If clicked on Zoom out, it shall decrease the height and weight with some value

Can anyone give me some hint which file I have to play with for this? Is this to do with functions or I can have something controlled from graph_image.php?

Regards
Manohar

[raX]

This should not be too hard actually. You can use the following URL for reference:

Code: Select all

graph_image.php?graphid=6&rraid=1&graph_start=-86400&graph_height=100&graph_width=300

By manipulating this string, you can in effect change the size and history of the graph.

-Ian

[tibbs]

I tweaked graph.php just a bit to add a zoom button to the first graph; it's probably not completely correct but it seems to work for me. Plus, I've never written a line of PHP before; I just pretended it was Perl.

You can fetch the result at http://www.math.uh.edu/~tibbs/graph.php.txt