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catmull-rom: use uniform spacing of curve evaluation points

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This commit is contained in:
Alberto Griggio
2018-08-18 12:43:14 +02:00
parent 681aabd0e2
commit e3ea0926c2
1 changed files with 1 additions and 2 deletions
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3
rtengine/diagonalcurves.cc
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@@ -390,13 +390,12 @@ void catmull_rom_chain(int n_points, int n_cp, double *x, double *y,
catmull_rom_reflect(x[n_cp-2], y[n_cp-2], x[n_cp-1], y[n_cp-1], x_last, y_last);
int segments = n_cp - 1;
int points_segments = n_points / segments;
res_x.reserve(n_points);
res_y.reserve(n_points);
for (int i = 0; i < segments; ++i) {
int n = points_segments + (i == 0 ? n_points % segments : 0);
int n = max(int(n_points * (x[i+1] - x[i]) + 0.5), 2);
catmull_rom_spline(
n, i == 0 ? x_first : x[i-1], i == 0 ? y_first : y[i-1],
x[i], y[i], x[i+1], y[i+1],