Hi John,
As Nodebox Gradients "A long a Path" were made out of
tiny shapes.
"VexyLine" a kind of vector stroke effects app does that too.
But using any raster graphic to color lines or Text.
"Vexyline," is a software tool that offers various effects
for vector paths—including coloring them using arbitrary
raster images.
This allows to to color vector paths by painting a color scheme
entirely by hand as a raster graphic and then using it in Vexyline
for the coloring process.
Although the resulting vector graphic also consists of many
small rectangles, but is fine if you only need a raster graphic.
Nodeaways the Result can be exported as an .SVG vector graphics file too.
gottfried
Here a Example where i use Text on a Path in Vexyline.
and the Path are a spiral.
pic 1 - the vexyline result
pic 2 - the raster graphic used