[Phpmyadmin-devel] GSoG 2011: Reg Zoom-search idea

Piotr Przybylski piotr.prz at gmail.com
Tue Mar 22 20:31:17 CET 2011

2011/3/22 Marc Delisle <marc at infomarc.info>:
> Ammar Yasir a écrit :
>> On Tue, Mar 22, 2011 at 11:24 PM, Marc Delisle <marc at infomarc.info
>> <mailto:marc at infomarc.info>> wrote:
>>     Ammar Yasir a écrit :
>>      > May I ask what quality aspect should this system focus on. It
>>     should be
>>      > correct, but what about trade off between system response time and
>>      > functionality. Like for example, Zooming feature. Should it be
>>     like from
>>      > 1X->2X or should the image magnify gradually. Since pchart will
>>     produce
>>      > static images, some of these issues will be faced while designing.
>>     I would prefer a gradual zoom but haven't made any research about how to
>>     implement this. If pChart is not the best tool for this, you can look
>>     for a better one. The other day I mentionned pChart because we are
>>     currently using it (in phpMyAdmin 3.4) for static charts.
>> So, is it like we can use any type of zoom but whenever the number of
>> points in the screen fall below a certain number, we show labels?
> I think it's more when the user ceases to see big clusters of data
> points and is able to perceive the distinct points.
>> Also, I think in pChart its not very straight forward to implement
>> clickable items(click data points  to view data row). We would have to
>> use CSS with overlaid items.
>>     OTOH if there is no open tool for a gradual zoom (web), going in
>>     increments (say, with buttons) will be fine.
>> I also have never implemented such but I found something on the net,
>> http://www.cssplay.co.uk/menu/image_magnifier2.html . I'll try to look
>> for something like this.

Maybe SVG? Vector output would give users faster feedback (no need to
generate big bitmaps on the server and send them) and allow for fluent
scaling in browser. Recently even IE got native support, with the
release of IE 9.

Piotr Przybylski

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