本文整理汇总了C++中Matrix2f::Inverse方法的典型用法代码示例。如果您正苦于以下问题：C++ Matrix2f::Inverse方法的具体用法？C++ Matrix2f::Inverse怎么用？C++ Matrix2f::Inverse使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Matrix2f的用法示例。
在下文中一共展示了Matrix2f::Inverse方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: matrix
void Matrix2Test::testConstantFunctionInverse(){
const Matrix2f matrix( 1.0f, 2.0f, 3.0f, 4.0f );
const Matrix2f result = matrix.Inverse();
const Matrix2f expected( -2.0f, 1.0f, 1.5f, -0.5f );
CPPUNIT_ASSERT_EQUAL( expected, result );
}示例2: AffineTransform
//----------------------------------------------------------------------------
void AffineTransform (int warmups, Ellipse2f& ellipse0, Ellipse2f& ellipse1)
{
float random = 0.0f;
for (int i = 0; i < warmups; ++i)
{
random = Mathf::SymmetricRandom();
}
Matrix2f A;
Vector2f B;
for (int row = 0; row < 2; ++row)
{
for (int col = 0; col < 2; ++col)
{
A[row][col] = Mathf::SymmetricRandom();
}
B[row] = Mathf::SymmetricRandom();
}
if (A.Determinant() < 0.0f)
{
A[0][0] = -A[0][0];
A[0][1] = -A[0][1];
}
Matrix2f invA = A.Inverse();
Vector2f K = invA*(ellipse0.Center - B);
Matrix2f D(
1.0f/(ellipse0.Extent[0]*ellipse0.Extent[0]),
1.0f/(ellipse0.Extent[1]*ellipse0.Extent[1]));
Matrix2f N = A.TransposeTimes(D)*A;
Matrix2f R;
N.EigenDecomposition(R, D);
ellipse0.Center = K;
ellipse0.Axis[0] = R.GetColumn(0);
ellipse0.Axis[1] = R.GetColumn(1);
ellipse0.Extent[0] = Mathf::InvSqrt(D[0][0]);
ellipse0.Extent[1] = Mathf::InvSqrt(D[1][1]);
K = invA*(ellipse1.Center - B);
D = Matrix2f(
1.0f/(ellipse1.Extent[0]*ellipse1.Extent[0]),
1.0f/(ellipse1.Extent[1]*ellipse1.Extent[1]));
N = A.TransposeTimes(D)*A;
N.EigenDecomposition(R, D);
ellipse1.Center = K;
ellipse1.Axis[0] = R.GetColumn(0);
ellipse1.Axis[1] = R.GetColumn(1);
ellipse1.Extent[0] = Mathf::InvSqrt(D[0][0]);
ellipse1.Extent[1] = Mathf::InvSqrt(D[1][1]);
}