Marco Oehler / Mbed OS Lab5

ROME 2 Lab5

Point.cpp@1:5201940a41c1, 2020-06-12 (annotated)

Committer:
oehlemar
Date:
Fri Jun 12 08:19:42 2020 +0000
Revision:
1:5201940a41c1
Parent:
0:893a1e710078 
asdf

Who changed what in which revision?

UserRevisionLine numberNew contents of line
oehlemar 0:893a1e710078 1 /*
oehlemar 0:893a1e710078 2 * Point.cpp
oehlemar 0:893a1e710078 3 * Copyright (c) 2020, ZHAW
oehlemar 0:893a1e710078 4 * All rights reserved.
oehlemar 0:893a1e710078 5 */
oehlemar 0:893a1e710078 6
oehlemar 0:893a1e710078 7 #include <cmath>
oehlemar 0:893a1e710078 8 #include "Point.h"
oehlemar 0:893a1e710078 9
oehlemar 0:893a1e710078 10 using namespace std;
oehlemar 0:893a1e710078 11
oehlemar 0:893a1e710078 12 /**
oehlemar 0:893a1e710078 13 * Creates a Point object.
oehlemar 0:893a1e710078 14 */
oehlemar 0:893a1e710078 15 Point::Point() {
oehlemar 0:893a1e710078 16
oehlemar 0:893a1e710078 17 x = 0.0f;
oehlemar 0:893a1e710078 18 y = 0.0f;
oehlemar 0:893a1e710078 19 r = 0.0f;
oehlemar 0:893a1e710078 20 alpha = 0.0f;
oehlemar 0:893a1e710078 21 }
oehlemar 0:893a1e710078 22
oehlemar 0:893a1e710078 23 /**
oehlemar 0:893a1e710078 24 * Creates a Point object from given polar coordinates.
oehlemar 0:893a1e710078 25 * @param r the radius of a point.
oehlemar 0:893a1e710078 26 * @param alpha the angle of a point.
oehlemar 0:893a1e710078 27 */
oehlemar 0:893a1e710078 28 Point::Point(float r, float alpha) {
oehlemar 0:893a1e710078 29
oehlemar 0:893a1e710078 30 x = r*cos(alpha);
oehlemar 0:893a1e710078 31 y = r*sin(alpha);
oehlemar 0:893a1e710078 32
oehlemar 0:893a1e710078 33 this->r = r;
oehlemar 0:893a1e710078 34 this->alpha = alpha;
oehlemar 0:893a1e710078 35 }
oehlemar 0:893a1e710078 36
oehlemar 0:893a1e710078 37 /**
oehlemar 0:893a1e710078 38 * Deletes this object.
oehlemar 0:893a1e710078 39 */
oehlemar 0:893a1e710078 40 Point::~Point() {}
oehlemar 0:893a1e710078 41
oehlemar 0:893a1e710078 42 /**
oehlemar 0:893a1e710078 43 * Calculates the distance of this point from the origin.
oehlemar 0:893a1e710078 44 */
oehlemar 0:893a1e710078 45 float Point::distance() {
oehlemar 0:893a1e710078 46
oehlemar 0:893a1e710078 47 return sqrt(x*x+y*y);
oehlemar 0:893a1e710078 48 }
oehlemar 0:893a1e710078 49
oehlemar 0:893a1e710078 50 /**
oehlemar 0:893a1e710078 51 * Calculates the distance between this point and a given point.
oehlemar 0:893a1e710078 52 * @param point another point to calculate the distance to.
oehlemar 0:893a1e710078 53 */
oehlemar 0:893a1e710078 54 float Point::distance(Point& point) {
oehlemar 0:893a1e710078 55
oehlemar 0:893a1e710078 56 return sqrt((x-point.x)*(x-point.x)+(y-point.y)*(y-point.y));
oehlemar 0:893a1e710078 57 }
oehlemar 0:893a1e710078 58
oehlemar 0:893a1e710078 59 /**
oehlemar 0:893a1e710078 60 * Calculates the manhattan distance of this point from the origin.
oehlemar 0:893a1e710078 61 * This calculation is only an approximation, but a lot faster to compute.
oehlemar 0:893a1e710078 62 */
oehlemar 0:893a1e710078 63 float Point::manhattanDistance() {
oehlemar 0:893a1e710078 64
oehlemar 0:893a1e710078 65 return fabs(x)+fabs(y);
oehlemar 0:893a1e710078 66 }
oehlemar 0:893a1e710078 67
oehlemar 0:893a1e710078 68 /**
oehlemar 0:893a1e710078 69 * Calculates the manhattan distance between this point and a given point.
oehlemar 0:893a1e710078 70 * This calculation is only an approximation, but a lot faster to compute.
oehlemar 0:893a1e710078 71 * @param point another point to calculate the distance to.
oehlemar 0:893a1e710078 72 */
oehlemar 0:893a1e710078 73 float Point::manhattanDistance(Point& point) {
oehlemar 0:893a1e710078 74
oehlemar 0:893a1e710078 75 return fabs(x-point.x)+fabs(y-point.y);
oehlemar 0:893a1e710078 76 }
oehlemar 0:893a1e710078 77