in reply to Re: GD::Text::Arc
in thread GD::Text::Arc

Hey, spirals. That would be neat. But no, it doesn't currently. If somebody can suggest an algorythm that works with my code, I could make it do spirals. I was getting a headache even trying to figure out how to make it do ovals (*)...

Other items on my wish-list:

(*) The complication giving me trouble is that I need to recalculate the position (or drawing-angle) for each letter, to account for the fact that GD draws TrueType characters from the lower-left corner, not the center.

I could easily set a separate scaling factor for X and Y coordinates (to make ovals), just like I could vary the radius on-the-fly (to make a spiral) but the problem is that the letters will be angled oddly (as if they were supposed to be in a circle). Too much for this bear of little brain! But, if you have suggestions, I'm all ears.

___ -DA $_='daniel@coder.com 519-575-3733 /Prescient Code Solutions/ coder.c +om ';s/-/ /g;s/([.@])/ $1/g;@y=(42*1476312054+7*3,14120504e4,-42*330261-3 +3, 42*5436+3,42*2886+10,42*434987+5);s/(.)/ord(uc($1))/ge;for(@x=split/32 +/; @y; map{print chr} split /(..)/, shift(@x) + shift(@y)) {perlmonk.da.r +u}

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Re: Re: Re: GD::Text::Arc
by hsmyers (Canon) on Jan 25, 2004 at 16:41 UTC
    I suppose the thing to research is the notion of 'path'---i.e. a continuous curve where on each character could be drawn perpendicular to a point of tangency. This is the idea supported in postscript and elsewhere...

    --hsm

    "Never try to teach a pig to sing...it wastes your time and it annoys the pig."