On Fri, Jun 17, 2011 at 11:49 AM, Marc Delisle
<marc(a)infomarc.info> wrote:
Ammar,
it works well so far!
Suggestions:
- As the default data label, use the display field if it exists (from
libraries/relation.lib.php, PMA_getDisplayField() )
- For the title, instead of "Scatter Plot", give some indications (how
to zoom, how to click, etc) or give a link to get such indications
- Is it possible to enlarge the size of the working zone? ideally, to
drag it by one of its corners?
:) I'll try and look into it.
- You seem to prefetch the whole table and
I'm concerned about response
time and memory issues for big tables (try it with the payment table and
no data restriction). When hovering over a dot, maybe fetch the rows one
by one with Ajax? Or use Ajax if there are more than a certain number of
rows.
I was also very much concerned about this. This happens even with the
'Display chart' functionality in the browse tab. I pre-fetch the table for
making the initial plot and store the data row for each point. One solution
can be like: Now I'm generating query like 'Select * from table' which
I'll
change to 'Select x,y from table' and then when hovering or clicking over
the plot, I'll fetch the data row.
Your solution of fetching just the needed columns will help, but we'll
need another safeguard for big tables. I'm thinking of a configurable
maximum of rows to fetch. Think of it, showing millions (or even
thousands) of dots won't make any sense.
>
> - Clicking on a point shows the whole row; is it possible to show a
> pencil icon which would permit to bring another panel to edit the row?
>
> - Still thinking about a panning mechanism?
>
> - Any possibility of this feature for multi-tables?