growing tickmark...for use in animation

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chriswww

growing tickmark...for use in animation

Postby chriswww » Fri Nov 19, 2010 2:45 pm

Hello,
New to this forum. I'm no great designer or anything, but can achieve most things i want to inkscape, until now that is. I can't get my head around creating a large stylistic design tickmark, which i could properly "grow" from the initial point along the path, stopping every so many pixels of such "growth" to export it as a png, for later animation elsewhere. The end result i'm after would look like someone had drawn/painted the tickmark. Any guidance towards a viable technique much appreciated. thanks.
Chris

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brynn
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Re: growing tickmark...for use in animation

Postby brynn » Fri Nov 19, 2010 3:02 pm

If I understand what you're asking, there's no automated way to do this. You would simply draw the first "frame" of the animation, export, draw more, export, draw more, export, etc, etc. Then later use some animation software to put them together.

chriswww
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Re: growing tickmark...for use in animation

Postby chriswww » Fri Nov 19, 2010 7:43 pm

Thanks for the reply. I'm not looking for an automated way to generate each frame...but an orderly way. I can draw a nice tickmark as a whole no problem, but trying to draw it by adding bit by bit by hand without using some kind of method to it, won't produce a nice and smooth result for the final animation.
Chris

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Re: growing tickmark...for use in animation

Postby ~suv » Sat Nov 20, 2010 2:10 am

chriswww wrote:I can draw a nice tickmark as a whole no problem, but trying to draw it by adding bit by bit by hand without using some kind of method to it, won't produce a nice and smooth result for the final animation.

Did you try with 'Extensions > Generate from Path > Interpolate'?

See also the Inkscape manual for Interpolate.

chriswww
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Re: growing tickmark...for use in animation

Postby chriswww » Mon Nov 22, 2010 1:36 pm

the machine i'm on now is only inkscape 0.47 winXP, and the interpolate extension seems to do nothing..or i don't know how to use it properly. other python extensions work btw.
i figured out a workable solution for now = draw the tick mark as 3 points and bend as needed. make desired stroke width. select all points and add nodes repeatedly until enough nodes (frames in the anim). the right side of the tick mark was twice the left bit, so added nodes once more only to this side, and so the node spread was even throughout. now it's just a matter of deleting one node at a time and generate png for each frame. the animation will be these images in reverse order. the tick mark isn't great looking, as it's all one thickness, but it will do. normally a tickmark starts thin, goes thick in the V groove, and thins out again on last stroke.
Cheers


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