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Added isIdentity() method

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This commit is contained in:
Robert Osfield
2006-11-24 21:10:57 +00:00
parent 5044a85c9e
commit 2a8c48c13c
2 changed files with 16 additions and 0 deletions
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8
include/osg/Matrixd
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@@ -93,6 +93,14 @@ class OSG_EXPORT Matrixd
void makeIdentity();
bool isIdentity() const
{
return _mat[0][0]==1.0 && _mat[0][1]==0.0 && _mat[0][2]==0.0 && _mat[0][3]==0.0 &&
_mat[1][0]==0.0 && _mat[1][1]==1.0 && _mat[1][2]==0.0 && _mat[1][3]==0.0 &&
_mat[2][0]==0.0 && _mat[2][1]==0.0 && _mat[2][2]==1.0 && _mat[2][3]==0.0 &&
_mat[3][0]==0.0 && _mat[3][1]==0.0 && _mat[3][2]==0.0 && _mat[3][3]==1.0;
}
void makeScale( const Vec3f& );
void makeScale( const Vec3d& );
void makeScale( value_type, value_type, value_type );

8
include/osg/Matrixf
View File

@@ -91,6 +91,14 @@ class OSG_EXPORT Matrixf
value_type * ptr() { return (value_type*)_mat; }
const value_type * ptr() const { return (const value_type *)_mat; }
bool isIdentity() const
{
return _mat[0][0]==1.0f && _mat[0][1]==0.0f && _mat[0][2]==0.0f && _mat[0][3]==0.0f &&
_mat[1][0]==0.0f && _mat[1][1]==1.0f && _mat[1][2]==0.0f && _mat[1][3]==0.0f &&
_mat[2][0]==0.0f && _mat[2][1]==0.0f && _mat[2][2]==1.0f && _mat[2][3]==0.0f &&
_mat[3][0]==0.0f && _mat[3][1]==0.0f && _mat[3][2]==0.0f && _mat[3][3]==1.0f;
}
void makeIdentity();
void makeScale( const Vec3f& );