Большое переименование: замена префикса F на более корректный FP (Floating Point)
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Andrey Pokidov
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c66edd3432
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ebb0a73555
31 changed files with 483 additions and 483 deletions
302
BGC/FP64Vector3.cs
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302
BGC/FP64Vector3.cs
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/*
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* Copyright 2019-2025 Andrey Pokidov <andrey.pokidov@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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/*
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* Author: Andrey Pokidov
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* Date: 1 Feb 2019
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*/
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namespace BGC
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{
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public struct FP64Vector3
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{
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public static readonly FP64Vector3 ZERO = new FP64Vector3(0.0, 0.0, 0.0);
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public double x1;
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public double x2;
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public double x3;
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public FP64Vector3(double x1, double x2, double x3)
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{
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this.x1 = x1;
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this.x2 = x2;
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this.x3 = x3;
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}
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public FP64Vector3(in FP64Vector3 vector)
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{
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this.x1 = vector.x1;
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this.x2 = vector.x2;
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this.x3 = vector.x3;
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}
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public FP64Vector3(in FP32Vector3 vector)
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{
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this.x1 = vector.x1;
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this.x2 = vector.x2;
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this.x3 = vector.x3;
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}
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public readonly double GetSquareModule()
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{
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return this.x1 * this.x1 + this.x2 * this.x2 + this.x3 * this.x3;
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}
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public readonly double GetModule()
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{
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return Math.Sqrt(this.GetSquareModule());
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}
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public int Normalize()
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{
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double squareModule = this.GetSquareModule();
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if (1.0 - FP64Utility.TWO_EPSYLON <= squareModule && squareModule <= 1.0 + FP64Utility.TWO_EPSYLON)
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{
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return 1;
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}
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if (squareModule <= FP64Utility.SQUARE_EPSYLON)
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{
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this.Reset();
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return 0;
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}
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double module = Math.Sqrt(squareModule);
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this.x1 /= module;
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this.x2 /= module;
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this.x3 /= module;
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return 1;
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}
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public void Reverse()
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{
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this.x1 = -this.x1;
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this.x2 = -this.x2;
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this.x3 = -this.x3;
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}
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public readonly bool IsZero()
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{
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return this.GetSquareModule() <= FP64Utility.SQUARE_EPSYLON;
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}
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public readonly bool IsUnit()
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{
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double squareModule = this.GetSquareModule();
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return 1.0 - FP64Utility.TWO_EPSYLON <= squareModule && squareModule <= FP64Utility.EPSYLON;
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}
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public void Reset()
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{
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this.x1 = 0.0;
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this.x2 = 0.0;
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this.x3 = 0.0;
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}
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public void SetValues(double x1, double x2, double x3)
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{
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this.x1 = x1;
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this.x2 = x2;
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this.x3 = x3;
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}
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public void SetValues(in FP64Vector3 vector)
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{
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this.x1 = vector.x1;
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this.x2 = vector.x2;
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this.x3 = vector.x3;
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}
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public void SetValues(in FP32Vector3 vector)
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{
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this.x1 = vector.x1;
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this.x2 = vector.x2;
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this.x3 = vector.x3;
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}
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public void SetReverseOf(in FP64Vector3 vector)
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{
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this.x1 = -vector.x1;
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this.x2 = -vector.x2;
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this.x3 = -vector.x3;
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}
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public void SetReverseOf(in FP32Vector3 vector)
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{
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this.x1 = -vector.x1;
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this.x2 = -vector.x2;
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this.x3 = -vector.x3;
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}
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public void AppendScaled(FP64Vector3 summand, double scale)
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{
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this.x1 += summand.x1 * scale;
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this.x2 += summand.x2 * scale;
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this.x3 += summand.x3 * scale;
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}
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public readonly override string ToString()
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{
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return String.Format("DPVector3({0}, {1}, {2})", this.x1, this.x2, this.x3);
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}
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public static void Add(in FP64Vector3 vector1, in FP64Vector3 vector2, out FP64Vector3 sum)
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{
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sum.x1 = vector1.x1 + vector2.x1;
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sum.x2 = vector1.x2 + vector2.x2;
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sum.x3 = vector1.x3 + vector2.x3;
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}
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public static void Subtract(in FP64Vector3 minuend, in FP64Vector3 subtrahend, out FP64Vector3 difference)
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{
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difference.x1 = minuend.x1 - subtrahend.x1;
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difference.x2 = minuend.x2 - subtrahend.x2;
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difference.x3 = minuend.x3 - subtrahend.x3;
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}
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public static void Muliply(in FP64Vector3 multiplicand, double multiplier, out FP64Vector3 product)
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{
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product.x1 = multiplicand.x1 * multiplier;
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product.x2 = multiplicand.x2 * multiplier;
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product.x3 = multiplicand.x3 * multiplier;
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}
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public static void Divide(in FP64Vector3 dividend, double divisor, out FP64Vector3 quotient)
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{
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quotient.x1 = dividend.x1 / divisor;
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quotient.x2 = dividend.x2 / divisor;
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quotient.x3 = dividend.x3 / divisor;
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}
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public static void GetMean2(in FP64Vector3 vector1, in FP64Vector3 vector2, out FP64Vector3 result)
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{
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result.x1 = (vector1.x1 + vector2.x1) * 0.5;
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result.x2 = (vector1.x2 + vector2.x2) * 0.5;
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result.x3 = (vector1.x3 + vector2.x3) * 0.5;
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}
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public static void GetMean3(in FP64Vector3 vector1, in FP64Vector3 vector2, in FP64Vector3 vector3, out FP64Vector3 result)
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{
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result.x1 = (vector1.x1 + vector2.x1 + vector3.x1) * FP64Utility.ONE_THIRD;
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result.x2 = (vector1.x2 + vector2.x2 + vector3.x2) * FP64Utility.ONE_THIRD;
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result.x3 = (vector1.x3 + vector2.x3 + vector3.x3) * FP64Utility.ONE_THIRD;
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}
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public static double GetScalarProduct(in FP64Vector3 vector1, in FP64Vector3 vector2)
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{
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return vector1.x1 * vector2.x1 + vector1.x2 * vector2.x2 + vector1.x3 * vector2.x3;
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}
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public static void GetCrossProduct(in FP64Vector3 vector1, in FP64Vector3 vector2, out FP64Vector3 result)
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{
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double x1 = vector1.x2 * vector2.x3 - vector1.x3 * vector2.x2;
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double x2 = vector1.x3 * vector2.x1 - vector1.x1 * vector2.x3;
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double x3 = vector1.x1 * vector2.x2 - vector1.x2 * vector2.x1;
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result.x1 = x1;
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result.x2 = x2;
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result.x3 = x3;
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}
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public static double GetTripleProduct(in FP64Vector3 vector1, in FP64Vector3 vector2, in FP64Vector3 vector3)
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{
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return vector1.x1 * (vector2.x2 * vector3.x3 - vector2.x3 * vector3.x2)
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+ vector1.x2 * (vector2.x3 * vector3.x1 - vector2.x1 * vector3.x3)
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+ vector1.x3 * (vector2.x1 * vector3.x2 - vector2.x2 * vector3.x1);
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}
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public static void GetDoubleCrossProduct(in FP64Vector3 vector1, in FP64Vector3 vector2, in FP64Vector3 vector3, out FP64Vector3 result)
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{
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// [a x [b x c]] = b * (a, c) - c * (a, b)
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double ac = GetScalarProduct(vector1, vector3);
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double ab = GetScalarProduct(vector1, vector2);
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result.x1 = ac * vector2.x1 - ab * vector3.x1;
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result.x2 = ac * vector2.x2 - ab * vector3.x2;
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result.x3 = ac * vector2.x3 - ab * vector3.x3;
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}
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public static double GetAngle(in FP64Vector3 vector1, in FP64Vector3 vector2, AngleUnit unit)
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{
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double squareModule1 = vector1.GetSquareModule();
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if (squareModule1 <= FP64Utility.SQUARE_EPSYLON)
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{
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return 0.0;
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}
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double squareModule2 = vector2.GetSquareModule();
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if (squareModule2 <= FP64Utility.SQUARE_EPSYLON)
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{
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return 0.0;
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}
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double cosine = FP64Vector3.GetScalarProduct(vector1, vector2) / Math.Sqrt(squareModule1 * squareModule2);
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if (1.0 - FP64Utility.EPSYLON <= cosine)
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{
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return 0.0;
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}
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if (cosine <= -(1.0 - FP64Utility.EPSYLON))
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{
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return FP64Angle.GetHalfCircle(unit);
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}
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return FP64Radians.ToUnits(Math.Acos(cosine), unit);
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}
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public static double GetSquareDistance(in FP64Vector3 vector1, in FP64Vector3 vector2)
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{
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double dx1 = vector1.x1 - vector2.x1;
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double dx2 = vector1.x2 - vector2.x2;
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double dx3 = vector1.x3 - vector2.x3;
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return dx1 * dx1 + dx2 * dx2 + dx3 * dx3;
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}
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public static double GetDistance(in FP64Vector3 vector1, in FP64Vector3 vector2)
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{
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return Math.Sqrt(GetSquareDistance(vector1, vector2));
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}
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public static bool AreEqual(in FP64Vector3 vector1, in FP64Vector3 vector2)
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{
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double squareModule1 = vector1.GetSquareModule();
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double squareModule2 = vector2.GetSquareModule();
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double squareModule3 = GetSquareDistance(vector1, vector2);
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// 3.0 means dimension amount
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if (squareModule1 < FP64Utility.EPSYLON_EFFECTIVENESS_LIMIT || squareModule2 < FP64Utility.EPSYLON_EFFECTIVENESS_LIMIT)
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{
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return squareModule3 < (3.0 * FP64Utility.SQUARE_EPSYLON);
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}
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if (squareModule1 <= squareModule2)
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{
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return squareModule3 <= (3.0 * FP64Utility.SQUARE_EPSYLON) * squareModule2;
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}
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return squareModule3 <= (3.0 * FP64Utility.SQUARE_EPSYLON) * squareModule1;
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}
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}
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}
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