error in rendering when using decimal point in variable
Hi
The following draws three rounded boxes. The one where there is a decimal
point in circle radius, does not render correctly. This seems like a bug to
me. Do I post bugs somewhere else?
module mod_roundedbox(box_x,box_y,box_z,rounding_r)
{
union ()
{
cube ([box_x - rounding_r2, box_y,box_z],center=true); //narrower
in x direction
cube ([box_x,box_y - rounding_r2,box_z],center=true); //narrower in
y direction
for (x = [rounding_r-box_x/2:-rounding_r+box_x/2])
for (y = [rounding_r-box_y/2:-rounding_r+box_y/2])
translate ([x,y,0]) cylinder (r=rounding_r, h=box_z,
center=true);;
};
};
mod_roundedbox (154,72,c_wall_z,8); // renders correctly
translate ([0,80,0]) mod_roundedbox (154,72,c_wall_z,8.1); //renders
incorrectly, the circle no longer lines up on several places, only
difference is that the radius is 8.1 here, not 8. Not all renderings with
value behind decimal point fail.
Is this a bug or by design? How can I get this fixed?
OpenSCAD version 2015.03-3 on Mac OS X 10.10.5
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This works:
module mod_roundedbox(box_x,box_y,box_z,rounding_r)
{
union ()
{
cube ([box_x - rounding_r2, box_y,box_z],center=true);
//narrowerin x direction
cube ([box_x,box_y - rounding_r2,box_z],center=true); //narrower
iny direction
for (x = [rounding_r-box_x/2, -rounding_r+box_x/2])
for (y = [rounding_r-box_y/2, -rounding_r+box_y/2])
translate ([x,y,0]) cylinder (r=rounding_r,
h=box_z,center=true);
}
}
c_wall_z = 20;
mod_roundedbox (154,72,c_wall_z,8.1);
With colons in the for statements you are generating lots of circles, not
just the corners. I.e. all the points between the two ends with a step size
of 1. When the size is not an integer the last circles are not in the
correct place.
On 7 May 2016 at 18:00, blouwagie bart@louwagie.com wrote:
Hi
The following draws three rounded boxes. The one where there is a decimal
point in circle radius, does not render correctly. This seems like a bug to
me. Do I post bugs somewhere else?
module mod_roundedbox(box_x,box_y,box_z,rounding_r)
{
union ()
{
cube ([box_x - rounding_r2, box_y,box_z],center=true); //narrower
in x direction
cube ([box_x,box_y - rounding_r2,box_z],center=true); //narrower
in
y direction
for (x = [rounding_r-box_x/2:-rounding_r+box_x/2])
for (y = [rounding_r-box_y/2:-rounding_r+box_y/2])
translate ([x,y,0]) cylinder (r=rounding_r, h=box_z,
center=true);;
};
};
mod_roundedbox (154,72,c_wall_z,8); // renders correctly
translate ([0,80,0]) mod_roundedbox (154,72,c_wall_z,8.1); //renders
incorrectly, the circle no longer lines up on several places, only
difference is that the radius is 8.1 here, not 8. Not all renderings with
value behind decimal point fail.
Is this a bug or by design? How can I get this fixed?
OpenSCAD version 2015.03-3 on Mac OS X 10.10.5
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http://forum.openscad.org/error-in-rendering-when-using-decimal-point-in-variable-tp17293.html
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Thank you nophead.
No wonder the rendering took so long too.
commas for single items in a list it is
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