本文整理汇总了C++中QMatrix4x4::fill方法的典型用法代码示例。如果您正苦于以下问题：C++ QMatrix4x4::fill方法的具体用法？C++ QMatrix4x4::fill怎么用？C++ QMatrix4x4::fill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QMatrix4x4的用法示例。
在下文中一共展示了QMatrix4x4::fill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: projectionMatrix
QMatrix4x4 ChilitagsDetection::projectionMatrix() const {
cv::Mat mat = m_surface.getChilitags().getCameraMatrix();
QMatrix4x4 projectionMatrix;
projectionMatrix.fill(0);
for (int i = 0; i<3; ++i)
for (int j = 0; j<3; ++j)
projectionMatrix(i,j) = mat.at<double>(i,j);
projectionMatrix(3,2) = 1;
return projectionMatrix;
}示例2: channelMap
static QMatrix4x4 channelMap(const VideoFormat& fmt)
{
if (fmt.isPlanar()) //currently only for planar
return QMatrix4x4();
switch (fmt.pixelFormat()) {
case VideoFormat::Format_UYVY:
return QMatrix4x4(0.0f, 0.5f, 0.0f, 0.5f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f);
case VideoFormat::Format_YUYV:
return QMatrix4x4(0.5f, 0.0f, 0.5f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
0.0f, 0.0f, 0.0f, 1.0f);
case VideoFormat::Format_VYUY:
return QMatrix4x4(0.0f, 0.5f, 0.0f, 0.5f,
0.0f, 0.0f, 1.0f, 0.0f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f);
case VideoFormat::Format_YVYU:
return QMatrix4x4(0.5f, 0.0f, 0.5f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f);
case VideoFormat::Format_VYU:
return QMatrix4x4(0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f);
default:
break;
}
const quint8 *channels = NULL;//{ 0, 1, 2, 3};
for (int i = 0; gl_channel_maps[i].pixfmt != VideoFormat::Format_Invalid; ++i) {
if (gl_channel_maps[i].pixfmt == fmt.pixelFormat()) {
channels = gl_channel_maps[i].channels;
break;
}
}
QMatrix4x4 m;
if (!channels)
return m;
m.fill(0);
for (int i = 0; i < 4; ++i) {
m(i, channels[i]) = 1;
}
qDebug() << m;
return m;
}