Matrix4x4 QML Type

提供一种将 4x4 变换矩阵应用于Item 的方法 ... 更多...

Import Statement: import QtQuick

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属性

matrix : matrix4x4

详细说明

Matrix4x4 类型提供了一种通过 4x4 矩阵对Item 应用变换的方法。

只需使用一个 4x4 矩阵中提供的变换，就能将旋转、缩放、平移和剪切结合起来。

下面的示例将矩形旋转 45 度（PI/4）：

Rectangle {
    width: 100
    height: 100
    color: "red"

    transform: Matrix4x4 {
        property real a: Math.PI / 4
        matrix: Qt.matrix4x4(Math.cos(a), -Math.sin(a), 0, 0,
                             Math.sin(a),  Math.cos(a), 0, 0,
                             0,           0,            1, 0,
                             0,           0,            0, 1)
    }
}

属性文档

matrix : matrix4x4

4x4 矩阵，该矩阵将用于一个Item

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