Sphere /

#include “cinder/Sphere.h”

Public Member Functions

Sphere ()
Sphere (const vec3 &center, float radius)
float

getRadius () const
void

setRadius (float radius)
vec3

getCenter () const
void

setCenter (const vec3 &center)
bool

intersects (const AxisAlignedBox &box) const
bool

intersects (const Ray &ray) const
int

intersect (const Ray &ray, float *intersection) const
int

intersect (const Ray &ray, float *min, float *max) const
vec3

closestPoint (const Ray &ray) const

Returns the closest point on ray to the Sphere . If ray intersects then returns the point of nearest intersection.
Sphere

transformed (const mat4 &transform) const

Converts sphere to another coordinate system. Note that it will not return correct results if there are non-uniform scaling, shears, or other unusual transforms in transform .
void

calcProjection (float focalLength, vec2 *outCenter, vec2 *outAxisA, vec2 *outAxisB) const

Calculates the projection of the Sphere (an oriented ellipse) given focalLength . Returns false if calculation failed, rendering only outCenter correct. Algorithm due to Iñigo Quilez.
void

calcProjection (float focalLength, vec2 screenSizePixels, vec2 *outCenter, vec2 *outAxisA, vec2 *outAxisB) const

Calculates the projection of the Sphere (an oriented ellipse) given focalLength . Algorithm due to Iñigo Quilez.
float

calcProjectedArea (float focalLength, vec2 screenSizePixels) const

Calculates the projected area of the Sphere given focalLength and screen size in pixels. Algorithm due to Iñigo Quilez.

Static Public Member Functions

Sphere

calculateBoundingSphere (const std::vector< vec3 > &points)
Sphere

calculateBoundingSphere (const vec3 *points, size_t numPoints)

Protected Attributes

vec3

mCenter
float

mRadius

Namespaces

Classes

Modules

Guides

Reference

Sphere /

Public Member Functions

Static Public Member Functions

Protected Attributes