[Qgis-developer] Proportionnal symbol

[Cerbelaud Fabien]

Hi, I use this list because I post a report on QGIS 2.10 and Giovanni 
Manghi tell me to send you e-mail with the problem :


I try the nighlty version of QGIS 2.9.25 and I have a problem with the 
size method in graduate symbol. The size method should be in categorized 
symbol and unique symbol but not in graduated. This is the first problem 
because we can't give a size to class in graphic semiology, each 
different value should have a different size.
The other problem is the mathematic calcul for the size, actually it's 
false, the right calcul is radius = square root(quantity/pi) we can 
after that multiply or split by a value all the radius value. To solve 
the problem of really small circle we could choose a minimum size for 
value under a custom limit. For the big circle we can choose a max value 
for the radius and find the most appropriated ratio between the max 
value we want and the radius initially calculate. I hope you could 
understant what I'm trying to say.
This is very important because the proportionnal symbol are really 
essential for cartographer and legend associated too.

Have a good day

Fabien Cerbelaud
-- 
Signature Unilim
------------------------------------------------------------------------
	*Fabien CERBELAUD*
Assistant Ingénieur Cartographe - */Service Ingénierie Recherche/*
Université de Limoges
Faculté des Lettres et Sciences Humaines
39E rue Camille Guérin 87036 Limoges Cedex
	*T*él : 05 55 43 *55 84*
*B*ureau : A 003
*A*ccueil : 05 55 43 56 00
*W*eb : http://www.flsh.unilim.fr/
*M*ail : fabien.cerbelaud at unilim.fr <mailto:fabien.cerbelaud at unilim.fr>
	<https://www.facebook.com/unilim>

unilim.fr <http://www.unilim.fr>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150702/0b9e3048/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: UL-Logo-sans-bordures-h80.png
Type: image/png
Size: 18587 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150702/0b9e3048/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: UL-Social-Twitter-CS3.png
Type: image/png
Size: 860 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150702/0b9e3048/attachment-0005.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: UL-Social-Facebook-CS3.png
Type: image/png
Size: 771 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150702/0b9e3048/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: UL_signal-source-h10.png
Type: image/png
Size: 428 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150702/0b9e3048/attachment-0007.png>