osgVolume.ImageDetails是OpenSceneGraph中用于描述图像数据信息的类。它包含图像的各种详细信息，如图像的大小、格式、类型等。
ImageDetails()：默认构造函数ImageDetails(unsigned int width, unsigned int height, unsigned int depth, unsigned int numMipMaps, GLenum internalTextureFormat, GLenum pixelFormat, GLenum dataType)：构造函数，需要指定图像的各种详细信息unsigned int getWidth() const：获取图像宽度void setWidth(unsigned int width)：设置图像宽度unsigned int getHeight() const：获取图像高度void setHeight(unsigned int height)：设置图像高度unsigned int getDepth() const：获取图像深度void setDepth(unsigned int depth)：设置图像深度unsigned int getNumMipMaps() const：获取MipMap层数void setNumMipMaps(unsigned int numMipMaps)：设置MipMap层数GLenum getInternalTextureFormat() const：获取纹理内部格式void setInternalTextureFormat(GLenum internalTextureFormat)：设置纹理内部格式GLenum getPixelFormat() const：获取像素格式void setPixelFormat(GLenum pixelFormat)：设置像素格式GLenum getDataType() const：获取数据类型void setDataType(GLenum dataType)：设置数据类型// 创建一个ImageDetails对象
osgVolume::ImageDetails imageDetails(512, 512, 1, 1, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE);
// 获取图像宽度和高度
unsigned int width = imageDetails.getWidth();
unsigned int height = imageDetails.getHeight();
// 修改图像深度
imageDetails.setDepth(4);
// 输出修改后的图像信息
std::cout << "Image Details: " << std::endl;
std::cout << "Width: " << imageDetails.getWidth() << std::endl;
std::cout << "Height: " << imageDetails.getHeight() << std::endl;
std::cout << "Depth: " << imageDetails.getDepth() << std::endl;
std::cout << "Internal Texture Format: " << imageDetails.getInternalTextureFormat() << std::endl;
std::cout << "Pixel Format: " << imageDetails.getPixelFormat() << std::endl;
std::cout << "Data Type: " << imageDetails.getDataType() << std::endl;