Geometry.h File Reference

#include <cstdlib>
#include <math.h>

Go to the source code of this file.

Functions
float	getAngle (float startX, float startY, float destX, float destY)
float	getSlopeAngle (float startX, float startY, float startZ, float destX, float destY, float destZ)
float	getSlopeAngleAbs (float startX, float startY, float startZ, float destX, float destY, float destZ)
double	getCircleAreaByRadius (double radius)
double	getCirclePerimeterByRadius (double radius)
double	getCylinderVolume (double height, double radius)

Function Documentation

getAngle()

float getAngle ( float  startX, float  startY, float  destX, float  destY  )

inline

Utility library to define some global function for geometric calculations

{
    auto dx = destX - startX;
    auto dy = destY - startY;
 
    auto ang = std::atan2(dy, dx);
    ang = (ang >= 0) ? ang : 2 * float(M_PI) + ang;
    return ang;
}

Referenced by Position::GetAngle().

getCircleAreaByRadius()

double getCircleAreaByRadius ( double  radius )

inline

{
    return radius * radius * M_PI;
}

Referenced by getCylinderVolume(), and getOutOfWater().

getCirclePerimeterByRadius()

double getCirclePerimeterByRadius ( double  radius )

inline

{
    return radius * M_PI;
}

getCylinderVolume()

double getCylinderVolume ( double  height, double  radius  )

inline

{
    return height * getCircleAreaByRadius(radius);
}

References getCircleAreaByRadius().

Referenced by getWeight().

getSlopeAngle()

float getSlopeAngle ( float  startX, float  startY, float  startZ, float  destX, float  destY, float  destZ  )

inline

{
    float floorDist = std::sqrt(pow(startY - destY, 2.0f) + pow(startX - destX, 2.0f));
    return atan(std::abs(destZ - startZ) / std::abs(floorDist));
}

Referenced by dtQueryFilterExt::getCost(), and getSlopeAngleAbs().

getSlopeAngleAbs()

float getSlopeAngleAbs ( float  startX, float  startY, float  startZ, float  destX, float  destY, float  destZ  )

inline

{
    return std::abs(getSlopeAngle(startX, startY, startZ, destX, destY, destZ));
}

References getSlopeAngle().

Referenced by PathGenerator::GetRequiredHeightToClimb().