segment_uniform_sampler.cpp

/*
 * Copyright (c) 2019 - 2025 Geode-solutions
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 * furnished to do so, subject to the following conditions:
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#include <geode/stochastic/sampling/direct/segment_uniform_sampler.hpp>

#include <geode/stochastic/common.hpp>
#include <geode/stochastic/sampling/random_engine.hpp>

#include <geode/geometry/angle.hpp>
#include <geode/geometry/basic_objects/segment.hpp>
#include <geode/geometry/vector.hpp>

namespace
{
    geode::Vector2D direction_from_azimuth_angle( const geode::Angle& azimuth )
    {
        return geode::Vector2D( { azimuth.sin(), azimuth.cos() } );
    }
} // namespace
namespace geode
{

    OwnerSegment2D SegmentUniformSampler::sample( RandomEngine& engine,
        const PointUniformSampler::Object< 2 >& object,
        const DoubleSampler::Distribution& length,
        const DoubleSampler::Distribution& azimuth_rad )
    {
        auto point1 = PointUniformSampler::sample( engine, object );

        auto segment_length = DoubleSampler::sample( engine, length );
        auto segment_azimuth = Angle::create_from_radians(
            DoubleSampler::sample( engine, azimuth_rad ) );

        auto point2 =
            point1
            + direction_from_azimuth_angle( segment_azimuth ) * segment_length;

        return OwnerSegment2D{ point1, point2 };
    }

} // namespace geode