Node: Querying Transforms, Next: Returning Information for Transforms, Previous: Setting Values Transforms, Up: Transform Reference
| bool is_identity (void) | Function |
Returns true if *this is the identity Transform,
otherwise false. This function has both a const and a
non-const version. In the non-const version,
clean() is called on *this before comparing the elements of
matrix with 1 (for the main diagonal) and 0 (for the other
elements). In the const version, *this is copied,
clean() is called on the copy, and the elements of the copy's
matrix are compared with 0 and 1.
|
| real get_element (const unsigned short row, const unsigned short col) | const function |
Returns the value stored in the element of matrix indicated by the arguments.
Transform t;
t.shift(1, 2, 3);
t.scale(2.5, -1.2, 4);
t.rotate(30, 15, 60);
t.show("t:");
-| t:
1.21 2.09 0.647 0
0.822 -0.654 0.58 0
-2.18 0.224 3.35 0
-3.69 1.45 11.8 1
cout << t.get_element(2, 1);
-| 0.224
|