On Tuesday, August 16, 2016 at 6:11:53 PM UTC+2, stevesuny wrote:
>
>
> Of course, I'm hoping to embed the function in tiddlywiki so I could use a 
> macro <<showtile  i=124.87379701700996 x=176.6728727371631 
> y=104.28485949713784 r=64 g=178 b=242 ri=1.6731564374861718 
> gi=5.41945679039433 bi=17.160426734134074 width=25 height=25>> to generate 
> a 25x25 image that looks like this 
> <https://designwritestudio.github.io/experimental/hand-tagged-graphics.html?i=124.87379701700996&x=176.6728727371631&y=104.28485949713784&r=64&g=178&b=242&ri=1.6731564374861718&gi=5.41945679039433&bi=17.160426734134074&rand=1>
>

IMO an image with 25 x 25 pixel won't be very useful. It's too small to see 
much. I did add 2 examples the first one is about 25x25 the second one 
100x100. I used your links to create them. 

Your example uses a canvas element, which is nice if you want to create 
bitmap images. 
IMO for TW it would be easier to dynamically create SVGs as used for the 
icons. ... Like shown in http://tiddlywiki.com/#Using%20SVG

have fun!
mario




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