RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 22:47:47 +00:00
Code Issues Activity Actions

AK: Add to_radians and to_degrees math functions

Browse source
This commit is contained in:
Bastiaan van der Plaat 2023-09-09 14:43:39 +02:00 • committed by Sam Atkins
parent 9b7aa8f6b6
commit 494a8cb816
15 changed files with 40 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

16
Userland/Applications/Maps/MapWidget.cpp
View file

@ -11,16 +11,6 @@
#include <LibProtocol/Request.h>
// Math helpers
static double radians(double degrees)
{
return degrees * M_PI / 180.0;
}
static double degrees(double radians)
{
return radians * 180.0 / M_PI;
}
// https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Pseudo-code
static double longitude_to_tile_x(double longitude, int zoom)
{
@ -29,7 +19,7 @@ static double longitude_to_tile_x(double longitude, int zoom)
static double latitude_to_tile_y(double latitude, int zoom)
{
return pow(2, zoom) * (1.0 - (log(tan(radians(latitude)) + (1.0 / cos(radians(latitude)))) / M_PI)) / 2.0;
return pow(2, zoom) * (1.0 - (log(tan(AK::to_radians(latitude)) + (1.0 / cos(AK::to_radians(latitude)))) / M_PI)) / 2.0;
}
static double tile_x_to_longitude(double x, int zoom)
@ -39,7 +29,7 @@ static double tile_x_to_longitude(double x, int zoom)
static double tile_y_to_latitude(double y, int zoom)
{
return degrees(atan(sinh(M_PI * (1.0 - 2.0 * y / pow(2, zoom)))));
return AK::to_degrees(atan(sinh(M_PI * (1.0 - 2.0 * y / pow(2, zoom)))));
}
static double nice_round_number(double number)
@ -52,7 +42,7 @@ static double nice_round_number(double number)
double MapWidget::LatLng::distance_to(LatLng const& other) const
{
double const earth_radius = 6371000.0;
return earth_radius * 2.0 * asin(sqrt(pow(sin((radians(other.latitude) - radians(latitude)) / 2.0), 2.0) + cos(radians(latitude)) * cos(radians(other.latitude)) * pow(sin((radians(other.longitude) - radians(longitude)) / 2.0), 2.0)));
return earth_radius * 2.0 * asin(sqrt(pow(sin((AK::to_radians(other.latitude) - AK::to_radians(latitude)) / 2.0), 2.0) + cos(AK::to_radians(latitude)) * cos(AK::to_radians(other.latitude)) * pow(sin((AK::to_radians(other.longitude) - AK::to_radians(longitude)) / 2.0), 2.0)));
}
// MapWidget class