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/*
* // Copyright (c) 2021 Feng Yang
* //
* // I am making my contributions/submissions to this project solely in my
* // personal capacity and am not conveying any rights to any intellectual
* // property of any third parties.
*/
use crate::field3::Field3;
use crate::scalar_field3::ScalarField3;
use crate::vector3::Vector3D;
use std::sync::{RwLock, Arc};
/// # 3-D constant scalar field.
pub struct ConstantScalarField3 {
_value: f64,
}
impl ConstantScalarField3 {
/// Constructs a constant scalar field with given \p value.
pub fn new(value: Option<f64>) -> ConstantScalarField3 {
return ConstantScalarField3 {
_value: value.unwrap_or(0.0)
};
}
/// Returns builder fox ConstantScalarField3.
pub fn builder() -> Builder {
return Builder::new();
}
}
impl Field3 for ConstantScalarField3 {}
impl ScalarField3 for ConstantScalarField3 {
fn sample(&self, _: &Vector3D) -> f64 {
return self._value;
}
}
/// Shared pointer for the ConstantScalarField3 type.
pub type ConstantScalarField3Ptr = Arc<RwLock<ConstantScalarField3>>;
///
/// # Front-end to create ConstantScalarField3 objects step by step.
///
pub struct Builder {
_value: f64,
}
impl Builder {
/// Returns builder with value.
pub fn with_value(&mut self, value: f64) -> &mut Self {
self._value = value;
return self;
}
/// Builds ConstantScalarField3.
pub fn build(&mut self) -> ConstantScalarField3 {
return ConstantScalarField3::new(Some(self._value));
}
/// Builds shared pointer of ConstantScalarField3 instance.
pub fn make_shared(&mut self) -> ConstantScalarField3Ptr {
return ConstantScalarField3Ptr::new(RwLock::new(self.build()));
}
/// constructor
pub fn new() -> Builder {
return Builder {
_value: 0.0
};
}
}