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add text_tower

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Justin Lin
2019-07-05 13:50:34 +08:00
parent 28e8a5c4b2
commit 1816aad98e
1 changed files with 61 additions and 0 deletions
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examples/text_tower.scad Normal file
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include <helix.scad>;
include <rotate_p.scad>;
include <cross_sections.scad>;
include <polysections.scad>;
include <helix_extrude.scad>;
tx = "3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989";
font_name = "Liberation Sans:style=Bold Italic";
radius = 60;
height = 150;
thickness = 2;
module text_tower(tx, font_name, radius, height, thickness) {
font_size = 2 * PI * radius / $fn;
angle_step = 360 / $fn;
half_angle_step = angle_step / 2;
half_thickness = thickness / 2;
module body() {
points = helix(
radius = radius,
levels = height / font_size,
level_dist = font_size,
vt_dir = "SPI_DOWN"
);
for(i = [0:len(points) - 1]) {
translate(points[i])
rotate([90, 0, 90 + angle_step * i])
linear_extrude(thickness, center = true)
text(
tx[i],
font = font_name,
size = font_size,
halign = "center"
);
}
rotate(-half_angle_step)
helix_extrude(
[
[thickness, half_thickness],
[-thickness, half_thickness],
[-thickness, -half_thickness],
[thickness, -half_thickness]
],
radius = radius,
levels = height / font_size + 1,
level_dist = font_size,
vt_dir = "SPI_DOWN"
);
}
translate([0, 0, -font_size - half_thickness])
body();
rotate(-half_angle_step)
translate([0, 0, -font_size - thickness])
cylinder(h = font_size, r = radius + thickness);
}
text_tower(tx, font_name, radius, height, thickness, $fn = 24);