Differential D13466 Diff 46665 source/blender/blenkernel/intern/spline_base.cc

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source/blender/blenkernel/intern/spline_base.cc

Show First 20 Lines • Show All 411 Lines • ▼ Show 20 Lines	Spline::LookupResult Spline::lookup_evaluated_length(const float length) const

Span<float> lengths = this->evaluated_lengths();		Span<float> lengths = this->evaluated_lengths();

const float *offset = std::lower_bound(lengths.begin(), lengths.end(), length);		const float *offset = std::lower_bound(lengths.begin(), lengths.end(), length);
const int index = offset - lengths.begin();		const int index = offset - lengths.begin();
const int next_index = (index == this->evaluated_points_size() - 1) ? 0 : index + 1;		const int next_index = (index == this->evaluated_points_size() - 1) ? 0 : index + 1;

const float previous_length = (index == 0) ? 0.0f : lengths[index - 1];		const float previous_length = (index == 0) ? 0.0f : lengths[index - 1];
const float factor = (length - previous_length) / (lengths[index] - previous_length);		const float length_in_segment = length - previous_length;
		const float segment_length = lengths[index] - previous_length;
		const float factor = segment_length == 0.0f ? 0.0f : length_in_segment / segment_length;

return LookupResult{index, next_index, factor};		return LookupResult{index, next_index, factor};
}		}

Array<float> Spline::sample_uniform_index_factors(const int samples_size) const		Array<float> Spline::sample_uniform_index_factors(const int samples_size) const
{		{
const Span<float> lengths = this->evaluated_lengths();		const Span<float> lengths = this->evaluated_lengths();

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