[Qgis-developer] SVG-Icons instead of PNGs?

[Robert Szczepanek]

Hi Andreas,

I made fast SVG downscaling test. Rendered with Inkscape.
Second column is shifted vertically by 0,5px.
As you can see main problem is "travelling blur" effect. Perhaps there 
are some smart renderers to overcome this.

I would also like to have just one SVG file...
Robert

On 31.07.2012 10:30, Andreas Neumann wrote:
> Hi Robert,
>
> Thanks for the reply.
>
> Do you have a side-by-side comparison of SVG vs. png and the rendering
> quality somewhere? I wonder if this is still an issue and if it is - how
> much of a problem it really is.
>
> Having just one icon size instead of n different sizes also has a lot of
> advantages. Think about all the new high-dpi devices. These would
> benefit a lot from SVG instead of PNG.
>
> Andreas
>
> On Tue, 31 Jul 2012 00:53:40 +0200, Robert Szczepanek wrote:
>> Hi Andreas,
>>
>> On 29.07.2012 12:22, Andreas Neumann wrote:
>>> Regarding the discussion around the icons?
>>>
>>> How about using SVG icons instead of fixed size png icons? That way one
>>> could easily scale the icon sizes on different devices to the preferred
>>> scale and taste of the user.
>>
>> From my test and literature I found that simple vector scaling for
>> small size icons (16x16 - 24-24) is not recommended. For higher images
>> blur effect is not so visible and important.
>>
>>> Are there any technical reasons for using PNGs instead of SVGs? I
>>> believe the source of the icons is SVG anyway?
>>>
>>> For my own in house python plugins I always use the SVG icons.
>>
>> The main technical reason was image quality. We decided to use
>> already rendered images in "native resolution". I know it sounds
>> stupid in Scalable Vector ... context, but that's the reality.
>> Whole version 0.1 of GIS icons was designed in just one SVG file. In
>> version 0.2 I save them in separate files. So most of the icons is at
>> the moment available as one file per icon.
>>
>> regards,
>> Robert
>>
>>> Andreas
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>>>
>

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