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Double stuff

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korenkonder
2023-12-30 20:56:56 +03:00
parent fe2b2d14f6
commit 24d068d9fd
6 changed files with 523 additions and 4 deletions
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src/KKdLib/interpolation.cpp
+44
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@@ -28,6 +28,29 @@ void interpolate_chs_reverse_value(float_t* arr, size_t length,
t2 = h10.y * t1_t2.x - h10.x * t1_t2.y;
}
void interpolate_chs_reverse_value(double_t* arr, size_t length,
double_t& t1, double_t& t2, size_t f1, size_t f2, size_t f) {
vec2d t = vec2d(
(double_t)(int64_t)(f - f1 + 0),
(double_t)(int64_t)(f - f1 + 1)
) / (double_t)(int64_t)(f2 - f1);
vec2d t_2 = t * t;
vec2d t_3 = t_2 * t;
vec2d t_23 = 3.0 * t_2;
vec2d t_32 = 2.0 * t_3;
vec2d h00 = t_32 - t_23 + 1.0;
vec2d h01 = t_23 - t_32;
vec2d h10 = t_3 - 2.0 * t_2 + t;
vec2d h11 = t_3 - t_2;
vec2d t1_t2 = *(vec2d*)&arr[f] - h00 * arr[f1] - h01 * arr[f2];
t1_t2 /= (t_2.x - t.x) * (t_2.y - t.y);
t1 = -h11.y * t1_t2.x + h11.x * t1_t2.y;
t2 = h10.y * t1_t2.x - h10.x * t1_t2.y;
}
void interpolate_chs_reverse(float_t* arr, size_t length,
float_t& t1, float_t& t2, size_t f1, size_t f2) {
t1 = 0.0f;
@@ -49,6 +72,27 @@ void interpolate_chs_reverse(float_t* arr, size_t length,
t2 = (float_t)(tt2 / (double_t)(f2 - f1 - 2));
}
void interpolate_chs_reverse(double_t* arr, size_t length,
double_t& t1, double_t& t2, size_t f1, size_t f2) {
t1 = 0.0;
t2 = 0.0;
if (f2 - f1 - 2 < 1)
return;
double_t _t1 = 0.0;
double_t _t2 = 0.0;
double_t tt1 = 0.0;
double_t tt2 = 0.0;
for (size_t i = f1 + 1; i < f2 - 1; i++) {
interpolate_chs_reverse_value(arr, length, _t1, _t2, f1, f2, i);
tt1 += _t1;
tt2 += _t2;
}
t1 = tt1 / (double_t)(f2 - f1 - 2);
t2 = tt2 / (double_t)(f2 - f1 - 2);
}
int32_t interpolate_chs_reverse_sequence(
std::vector<float_t>& values_src, std::vector<kft3>& values, bool fast) {
size_t count = values_src.size();