QT实现trk文件解析
时间: 2023-08-15 15:31:36 浏览: 181
TRK文件是TrackVis软件使用的一种轨迹文件格式,里面包含了DTI(弥散张量成像)数据的轨迹信息。如果想要实现TRK文件的解析,可以使用QT提供的文件操作类和相关算法库来完成。
以下是一个简单的TRK文件解析示例,基于QT环境:
```c++
#include <QtCore/QCoreApplication>
#include <QDebug>
#include <QFile>
struct TRKHeader {
char id_string[6];
short dim[3];
float voxel_size[3];
float origin[3];
short n_scalars;
char scalar_name[10][20];
short n_properties;
char property_name[10][20];
float vox_to_ras[4][4];
char reserved[444];
char voxel_order[4];
char pad2[3];
float image_orientation_patient[6];
char pad1[2];
unsigned char invert_x;
unsigned char invert_y;
unsigned char invert_z;
unsigned char swap_xy;
unsigned char swap_yz;
unsigned char swap_zx;
int n_count;
int version;
int hdr_size;
};
struct TRKData {
float point[3];
float scalar[10];
};
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QString trkFilePath = "your_trk_file_path";
QFile trkFile(trkFilePath);
if (!trkFile.open(QIODevice::ReadOnly)) {
qDebug() << "Failed to open TRK file!";
return -1;
}
TRKHeader header;
trkFile.read((char*)&header, sizeof(TRKHeader));
int n_count = header.n_count;
qDebug() << "Number of tracks: " << n_count;
for (int i = 0; i < n_count; i++) {
int n_points = 0;
trkFile.read((char*)&n_points, sizeof(int));
qDebug() << "Number of points in track " << i << ": " << n_points;
for (int j = 0; j < n_points; j++) {
TRKData data;
trkFile.read((char*)&data, sizeof(TRKData));
// 解析点坐标和标量数据
float x = data.point[0];
float y = data.point[1];
float z = data.point[2];
float scalar1 = data.scalar[0];
float scalar2 = data.scalar[1];
// ...
}
}
trkFile.close();
return a.exec();
}
```
在这个示例中,我们首先打开了一个TRK文件,然后读取了文件头信息和轨迹数据。TRK文件中的每个轨迹都由一系列点组成,每个点包含坐标和标量数据。我们可以根据TRK文件的格式来解析这些数据,然后进行处理或者可视化。
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