PointGenerator.h

// This file is a part of the OpenSurgSim project.
// Copyright 2013, SimQuest Solutions Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef SURGSIM_PARTICLES_POINTGENERATOR_H
#define SURGSIM_PARTICLES_POINTGENERATOR_H

#include <memory>
#include <random>

#include "SurgSim/Math/Vector.h"

namespace SurgSim
{

namespace Math
{
class Shape;
}

namespace Particles
{

class PointGenerator
{
public:
    PointGenerator();

    virtual ~PointGenerator();

    virtual SurgSim::Math::Vector3d pointInShape(std::shared_ptr<SurgSim::Math::Shape> shape) = 0;

    virtual SurgSim::Math::Vector3d pointOnShape(std::shared_ptr<SurgSim::Math::Shape> shape) = 0;

    void seed(unsigned int val) { m_generator.seed(val); }

protected:
    std::mt19937 m_generator;

    std::uniform_real_distribution<double> m_openOneOneDistribution; // <-- (-1.0, 1.0)
    std::uniform_real_distribution<double> m_closedOneOneDistribution; // <-- [-1.0, 1.0]
    std::uniform_real_distribution<double> m_closedZeroOneDistribution; // <-- [0.0, 1.0]
    std::uniform_real_distribution<double> m_closedZeroOpenOneDistribution; // <-- [0.0, 1.0)
};

}; // namespace Particles
}; // namespace SurgSim

#endif // SURGSIM_PARTICLES_POINTGENERATOR_H