## NAME

hwSphere - create a partial sphere of a given radius

## INHERITS FROM

## PROPERTIES

GraphN |
1I |
Tesselation parameter; the number of rows in the resulting mesh |

GraphM |
1I |
Tesselation parameter; the number of columns in the resulting
mesh |

Radius |
1F |
The radius of the sphere |

LatRange |
2F |
The range of latitudes covered by the partial sphere, from -90
to 90 |

LonRange |
2F |
The range of longitudes covered by the partial sphere, from 0
to 360 |

OptFlags |
1I |
The optimization flags; see hw for details |

HasNormals |
1B |
True if smooth shading is desired; false for a faceted
appearance |

Resolution |
1F |
Tesselation multiplier |

## DEFAULTS

GraphN |
9 |

GraphM |
17 |

Radius |
1.0 |

LatRange |
{-90,90} |

LonRange |
{0,360} |

OptFlags |
hwDefaultOptFlags |

HasNormals |
True |

Resolution |
1.0 |

## DESCRIPTION

The hwSphere class creates a partial sphere object with specified
radius, latitude range, and longitude range. GraphN and GraphM
correspond the the numbers of rows and columns in the mesh resulting
from tesselation of the sphere. Note that for full spheres, the
tesselation might not be a trivial latitude-longitude mesh. By
default, the sphere has a smoothly shaded appearance; if a faceted
appearance is desired instead, set the HasNormals property to False.

The default texture coordinates have the S coordinate increasing
from 0 to 1 along the longitudes of the sphere, and the T coordinate
increasing from 0 to 1 along the latitudes of the sphere.

## C EXAMPLE

/* Draw a bowl */
hwObject
sphere;
sphere = hwSphere->create( hwSphere );
HW_MODIFY_1B( sphere, hwStrTwoSided, HW_TRUE );
HW_MODIFY_2F( sphere, hwStrLatRange, -90.0, -45.0 );
sphere->draw( sphere );
sphere->destroy( sphere );

## OBJECT FILE EXAMPLE

# A bowl-shaped object
hwSphere sphere {
TwoSided = True
LatRange = {-90, -45}
}

## SEE ALSO

hw, hwSurface, hwOrient