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-/****************************************************************************
- *
- * Copyright (C) 2012 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name PX4 nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/**
- * @file Vector.h
- *
- * math vector
- */
-
-#pragma once
-
-#include <inttypes.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-
-#include "../Vector.hpp"
-
-namespace math
-{
-
-class __EXPORT Vector
-{
-public:
- // constructor
- Vector(size_t rows) :
- _rows(rows),
- _data((float *)calloc(rows, sizeof(float))) {
- }
- Vector(size_t rows, const float *data) :
- _rows(rows),
- _data((float *)malloc(getSize())) {
- memcpy(getData(), data, getSize());
- }
- // deconstructor
- virtual ~Vector() {
- delete [] getData();
- }
- // copy constructor (deep)
- Vector(const Vector &right) :
- _rows(right.getRows()),
- _data((float *)malloc(getSize())) {
- memcpy(getData(), right.getData(),
- right.getSize());
- }
- // assignment
- inline Vector &operator=(const Vector &right) {
-#ifdef VECTOR_ASSERT
- ASSERT(getRows() == right.getRows());
-#endif
-
- if (this != &right) {
- memcpy(getData(), right.getData(),
- right.getSize());
- }
-
- return *this;
- }
- // element accessors
- inline float &operator()(size_t i) {
-#ifdef VECTOR_ASSERT
- ASSERT(i < getRows());
-#endif
- return getData()[i];
- }
- inline const float &operator()(size_t i) const {
-#ifdef VECTOR_ASSERT
- ASSERT(i < getRows());
-#endif
- return getData()[i];
- }
- // output
- inline void print() const {
- for (size_t i = 0; i < getRows(); i++) {
- float sig;
- int exp;
- float num = (*this)(i);
- float2SigExp(num, sig, exp);
- printf("%6.3fe%03.3d,", (double)sig, exp);
- }
-
- printf("\n");
- }
- // boolean ops
- inline bool operator==(const Vector &right) const {
- for (size_t i = 0; i < getRows(); i++) {
- if (fabsf(((*this)(i) - right(i))) > 1e-30f)
- return false;
- }
-
- return true;
- }
- // scalar ops
- inline Vector operator+(const float &right) const {
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) + right;
- }
-
- return result;
- }
- inline Vector operator-(const float &right) const {
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) - right;
- }
-
- return result;
- }
- inline Vector operator*(const float &right) const {
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) * right;
- }
-
- return result;
- }
- inline Vector operator/(const float &right) const {
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) / right;
- }
-
- return result;
- }
- // vector ops
- inline Vector operator+(const Vector &right) const {
-#ifdef VECTOR_ASSERT
- ASSERT(getRows() == right.getRows());
-#endif
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) + right(i);
- }
-
- return result;
- }
- inline Vector operator-(const Vector &right) const {
-#ifdef VECTOR_ASSERT
- ASSERT(getRows() == right.getRows());
-#endif
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = (*this)(i) - right(i);
- }
-
- return result;
- }
- inline Vector operator-(void) const {
- Vector result(getRows());
-
- for (size_t i = 0; i < getRows(); i++) {
- result(i) = -((*this)(i));
- }
-
- return result;
- }
- // other functions
- inline float dot(const Vector &right) const {
- float result = 0;
-
- for (size_t i = 0; i < getRows(); i++) {
- result += (*this)(i) * (*this)(i);
- }
-
- return result;
- }
- inline float norm() const {
- return sqrtf(dot(*this));
- }
- inline float length() const {
- return norm();
- }
- inline Vector unit() const {
- return (*this) / norm();
- }
- inline Vector normalized() const {
- return unit();
- }
- inline void normalize() {
- (*this) = (*this) / norm();
- }
- inline static Vector zero(size_t rows) {
- Vector result(rows);
- // calloc returns zeroed memory
- return result;
- }
- inline void setAll(const float &val) {
- for (size_t i = 0; i < getRows(); i++) {
- (*this)(i) = val;
- }
- }
- inline void set(const float *data) {
- memcpy(getData(), data, getSize());
- }
- inline size_t getRows() const { return _rows; }
-protected:
- inline size_t getSize() const { return sizeof(float) * getRows(); }
- inline float *getData() { return _data; }
- inline const float *getData() const { return _data; }
- inline void setData(float *data) { _data = data; }
-private:
- size_t _rows;
- float *_data;
-};
-
-} // math