As Michael wrote, OpenSCAD has no support for pinning a texture to a solid.
Also any color information gets lost when CGAL rendering (F6) is done for
STL export.

But if you have a dual or multiple head printer and a slicer that can handle
multiple STLs, one for each filament color, you can use OpenSCAD to produce
distinct STLs, one for each color and get a colored print.
Here some code that carves colored text (or any other texture) like a tarsia
into a solid. (Text is projected):

http://forum.openscad.org/file/n16734/texture.png

// mode = "shape"; // uncomment to view/export shape only
// mode = "text";  // uncomment to view/export text only

textonshape(mode = mode, textcolor = "red")
{
// here is your shape
cylinder(r=10.01, 71, center = true);

// here is your texture, must intersect with your shape
translate([3,6,30]) // to move to the position where you want text
rotate([0,90,90]) // to align with the face of the stl
linear_extrude(height=6, convexity=9)
text("your text");
}

module textonshape(mode = "view", textcolor = "green")
{
if(mode != "shape")
color(textcolor)
intersection() // just the text
{
scale([.999, .999, .999]) children([0]); children([1]);
}
if(mode != "text")
difference()  // just the shape
{
children([0]); children([1]);
}
}

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Yeah it's working.Is it possible to wrap text taken from .dxf file.I have
attached a sample dxf sketch.

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But for Chinese text it is not translating properly.please find attached
picture . http://forum.openscad.org/file/n16744/ch.png

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A second approach is to import the DXF into Inkscape and use the openscad
export plugin to export as an object.

Then intersect() and difference() it with cylinder (maybe 6 sides) to get
the wrapped text.

• http://www.thingiverse.com/thing:1065500

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Hello! Cant we do it with out importing into third party software. I would
like to add above functionality locally to OpenScad.Can you please provide
me in details.Thank you.

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In above approach
1.export as STL
2. import into OpenScad

results: Text disappears

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Does it appear at all - in mode "text"? Maybe your exporter is not working
properly. Why don't you post the relevant parts of your code?

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