QVector4DArray Class
The QVector4DArray class is a convenience for wrapping a QArray of QVector4D values. More...
#include <QVector4DArray> Inherits: QArray<QVector4D>.
This class was introduced in Qt 4.8.
Public Functions
| | QVector4DArray() |
| | QVector4DArray(int size, const QVector4D & value = QVector4D()) |
| | QVector4DArray(const QArray<QVector4D> & other) |
| void | append(qreal x, qreal y, qreal z, qreal w) |
| void | scale(qreal scale) |
| QVector4DArray | scaled(qreal scale) const |
| void | transform(const QMatrix4x4 & matrix) |
| QArray<QVector4D> | transformed(const QMatrix4x4 & matrix) const |
| void | translate(const QVector4D & value) |
| void | translate(qreal x, qreal y, qreal z, qreal w) |
| QArray<QVector4D> | translated(const QVector4D & value) const |
| QArray<QVector4D> | translated(qreal x, qreal y, qreal z, qreal w) const |
- 74 public functions inherited from QArray
Additional Inherited Members
- 2 static public members inherited from QArray
Detailed Description
The QVector4DArray class is a convenience for wrapping a QArray of QVector4D values.
QVector4DArray is used to build an array of 4D vector values based on floating-point x, y, and z arguments:
QVector4DArray array;
array.append(1.0f, 2.0f, 3.0f, -4.0f);
array.append(-1.0f, 2.0f, 3.0f, -4.0f);
array.append(1.0f, -2.0f, 3.0f, -4.0f);
This is more convenient and readable than the equivalent with QArray:
QArray<QVector4D> array;
array.append(QVector4D(1.0f, 2.0f, 3.0f, -4.0f));
array.append(QVector4D(-1.0f, 2.0f, 3.0f, -4.0f));
array.append(QVector4D(1.0f, -2.0f, 3.0f, -4.0f));
QVector4DArray also has convenience functions for transforming the contents of the array with translate(), translated(), transform(), and transformed().
See also QArray, QVector2DArray, and QVector3DArray.
Member Function Documentation
QVector4DArray::QVector4DArray()
Constructs an empty array of QVector4D values.
QVector4DArray::QVector4DArray(int size, const QVector4D & value = QVector4D())
Constructs an array of QVector4D values with an initial size. All elements in the array are initialized to value.
QVector4DArray::QVector4DArray(const QArray<QVector4D> & other)
Constructs a copy of other.
void QVector4DArray::append(qreal x, qreal y, qreal z, qreal w)
Appends (x, y, z, w) to this array of QVector4D values.
void QVector4DArray::scale(qreal scale)
Multiplies the elements in this array of QVector4D values by the scale.
See also scaled().
QVector4DArray QVector4DArray::scaled(qreal scale) const
Returns a copy of this array of QVector4D values, multiplied by the scale.
See also scale().
void QVector4DArray::transform(const QMatrix4x4 & matrix)
Transforms the elements in this array of QVector4D values by matrix.
See also transformed().
QArray<QVector4D> QVector4DArray::transformed(const QMatrix4x4 & matrix) const
Returns a copy of this array of QVector3D values, transformed by matrix.
See also transform().
void QVector4DArray::translate(const QVector4D & value)
Translates the elements in this array of QVector4D values by the components of value.
See also translated().
void QVector4DArray::translate(qreal x, qreal y, qreal z, qreal w)
This is an overloaded function.
Translates the elements in this array of QVector4D values by (x, y, z, w).
See also translated().
QArray<QVector4D> QVector4DArray::translated(const QVector4D & value) const
Returns a copy of this array of QVector4D values, translated by the components of value.
See also translate().
This is an overloaded function.
Returns a copy of this array of QVector4D values, translated by (x, y, z, w).
See also translate().
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