display svg and performances

sachaamm

in Contributed Library Questions • 3 months ago

Hi
I'm making an interactive map using wikimedia world map empty.
The svg file is 1.5 mb size, and when i use the basic method loadShape(); and shape() in draw my sketch turn around 10 fps...

I tried also to use p8 graphics svg library builded by philho but i get 404. Does the library stay availble?
Do you have any advices to get the fastest efficient way to display svg map?

EDIT: the library stay available by this link http://phi.lho.free.fr/programming/Processing/P8gGraphicsSVG/
the link is dead in the library main processing page

Thanks in advance

Replies(3)

PhiLho

Re: display svg and performances

3 months ago

Dead link is my fault, I have to see how to update the information...
This library won't help you: it is to export drawings to SVG, not to load them nor to display them.

1.5 MB of SVG is a bit big...
I think you can get a performance boost by drawing the SVG once on a PGraphics, then just displaying the result on the sketch area with image(). After all, if you display the map in a rather static way (no zoom, etc.), it is faster to display the rasterization of the vector file.

antiplex

Re: Re: display svg and performances

2 months ago

hi!

just a (rather offtopic) side note regarding the mentioned link to the P8gGraphicsSVG lib:

on processing-lib-referende page the linked URL reads
http://phi.lho.free.fr/Programming/Processing/P8gGraphicsSVG/

while the page is reachable via
http://phi.lho.free.fr/programming/Processing/P8gGraphicsSVG/
(note the small-letter 'P' on programming)

so for me using firefox the former leads to a 404.

dunno who's maintaining the reference-pages though but you (PhiLho) might...
EDIT: i just found that the 'wrong' URL ist also present in the libs identity-card and might originate from there (?)

cheers, anti

sachaamm

Re: display svg and performances

3 months ago

yes but i'm using a scalable zoomable process to explore the map..
anyway now i use a 700ko shape : it's working perfectly.

in the future i want to build an interactive map to the web so I need to think a bit more to most efficient way to
display svg...
the idea of returning a PImage as svg is not stupid maybe i can use a process to select the part of the svg i want to zoom/ translate and an other to return it in a PImage.

thx for your answers philho!

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