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Diffstat (limited to 'doc/src/coordsys.qdoc')
| -rw-r--r-- | doc/src/coordsys.qdoc | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/doc/src/coordsys.qdoc b/doc/src/coordsys.qdoc index 7ba3946..4a73d67 100644 --- a/doc/src/coordsys.qdoc +++ b/doc/src/coordsys.qdoc @@ -224,12 +224,12 @@ Transformations} demo for a visualization of a sheared coordinate system. All the transformation operations operate on QPainter's transformation matrix that you can retrieve using the - QPainter::worldMatrix() function. A matrix transforms a point in the - plane to another point. + QPainter::worldTransform() function. A matrix transforms a point + in the plane to another point. If you need the same transformations over and over, you can also - use QMatrix objects and the QPainter::worldMatrix() and - QPainter::setWorldMatrix() functions. You can at any time save the + use QTransform objects and the QPainter::worldTransform() and + QPainter::setWorldTransform() functions. You can at any time save the QPainter's transformation matrix by calling the QPainter::save() function which saves the matrix on an internal stack. The QPainter::restore() function pops it back. @@ -318,7 +318,7 @@ transformations affects the result. For more information about the transformation matrix, see the - QMatrix documentation. + QTransform documentation. \section1 Window-Viewport Conversion @@ -328,7 +328,7 @@ The mapping of the logical coordinates to the physical coordinates are handled by QPainter's world transformation \l - {QPainter::worldMatrix()}{worldMatrix()} (described in the \l + {QPainter::worldTransform()}{worldTransform()} (described in the \l Transformations section), and QPainter's \l {QPainter::viewport()}{viewport()} and \l {QPainter::window()}{window()}. The viewport represents the @@ -419,14 +419,14 @@ \endtable The 2D transformations of the coordinate system are specified - using the QMatrix class: + using the QTransform class: \table \header \o Class \o Description \row - \o QMatrix + \o QTransform \o - A 3 x 3 transformation matrix. Use QMatrix to rotate, shear, + A 3 x 3 transformation matrix. Use QTransform to rotate, shear, scale, or translate the coordinate system. \endtable |