/// <summary>
/// Create view of image navigation result.
/// </summary>
/// <param name="imageNavigationResult">Navigation result to create view from</param>
/// <returns>View of image navigation result</returns>
public static ImageNavigationResultView CreateView(ImageNavigationResult imageNavigationResult)
{
#region valdiation
if (imageNavigationResult == null)
{
throw new ArgumentNullException(nameof(imageNavigationResult));
}
#endregion
return(new ImageNavigationResultView
{
ImageLabel = ImageLabelFactory.CreateView(imageNavigationResult.ImageLabel),
ImageCount = imageNavigationResult.ImageCount,
HasNextBlank = imageNavigationResult.HasNextBlank,
HasNext = imageNavigationResult.HasNext,
HasPrevious = imageNavigationResult.HasPrevious,
HasPreviousBlank = imageNavigationResult.HasPreviousBlank
});
}
private ImageNavigationResultView GetImageLabelNavigationResult(Topic topic, NavigationParameter navigationParameter, ENavigationDirection navigationDirection)
{
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
// fill imagelabel-structure of image label
ImageNavigationResult image = NavigationService.Navigate(topic, navigationParameter.Index, navigationParameter.LabelMode, navigationDirection);
// default navigation if not label was found on navigation to blank
if (image == null && (navigationDirection == ENavigationDirection.Blank || navigationDirection == ENavigationDirection.LastBlank))
{
image = NavigationService.Navigate(topic, navigationParameter.Index, navigationParameter.LabelMode, ENavigationDirection.Direct);
}
if (image == null)
{
// return http-404 if no label found
return(null);
}
// create naviation result
ImageNavigationResultView navigationResult = ImageNavigationResultFactory.CreateView(image);
switch (navigationParameter.LabelMode)
{
case ELabelMode.ObjectDetection:
if (image.ImageLabel.HasLabels)
{
IEnumerable <Label> labels = LabelService.GetLabels(topic, image.ImageLabel);
navigationResult.ImageLabel.Labels = labels.Select(LabelFactory.CreateView);
}
break;
}
sw.Stop();
Log.Information($"Navigation takes {sw.ElapsedMilliseconds} ms");
return(navigationResult);
}
