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Bozo the Builder
2023-11-15 14:18:19 -08:00
parent 92dfe19314
commit 5f656414c0
24 changed files with 878 additions and 293 deletions
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87
opennurbs_color.cpp
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@@ -310,45 +310,60 @@ void ON_Color::SetHSV(
double value // value
)
{
int i;
double f, p, q, t, r, g, b;
if ( saturation <= 1.0/256.0 ) {
r = value;
g = value;
b = value;
}
else {
hue *= 3.0 / ON_PI; // (6.0 / 2.0 * ON_PI);
i = (int)floor(hue);
if ( i < 0 || i > 5 ) {
hue = fmod(hue,6.0);
if ( hue < 0.0 )
hue += 6.0;
i = (int)floor(hue);
}
f = hue - i;
p = value * ( 1.0 - saturation);
q = value * ( 1.0 - ( saturation * f) );
t = value * ( 1.0 - ( saturation * ( 1.0 - f) ) );
switch( i)
if ( hue > ON_UNSET_FLOAT && hue < ON_UNSET_POSITIVE_FLOAT
&& saturation > ON_UNSET_FLOAT && saturation < ON_UNSET_POSITIVE_FLOAT
&& value > ON_UNSET_FLOAT && value < ON_UNSET_POSITIVE_FLOAT
)
{
double r, g, b;
if (value < 0.0)
value = 0.0;
else if (value > 1.0)
value = 1.0;
if (saturation <= 1.0 / 256.0)
{
case 0:
r = value; g = t; b = p; break;
case 1:
r = q; g = value; b = p; break;
case 2:
r = p; g = value; b = t; break;
case 3:
r = p; g = q; b = value; break;
case 4:
r = t; g = p; b = value; break;
case 5:
r = value; g = p; b = q; break;
default:
r = 0; g = 0; b = 0; break; // to keep lint quiet
r = value;
g = value;
b = value;
}
else
{
if (saturation > 1.0)
saturation = 1.0;
hue *= 3.0 / ON_PI; // (6.0 / 2.0 * ON_PI);
int i = (int)floor(hue);
if (i < 0 || i > 5) {
hue = fmod(hue, 6.0);
if (hue < 0.0)
hue += 6.0;
i = (int)floor(hue);
}
const double f = hue - i;
const double p = value * (1.0 - saturation);
const double q = value * (1.0 - (saturation * f));
const double t = value * (1.0 - (saturation * (1.0 - f)));
switch (i)
{
case 0:
r = value; g = t; b = p; break;
case 1:
r = q; g = value; b = p; break;
case 2:
r = p; g = value; b = t; break;
case 3:
r = p; g = q; b = value; break;
case 4:
r = t; g = p; b = value; break;
case 5:
r = value; g = p; b = q; break;
default:
r = 0; g = 0; b = 0; break; // to keep lint quiet
}
}
SetFractionalRGB(r, g, b);
}
SetFractionalRGB(r,g,b);
else
*this = ON_Color::UnsetColor;
}