//在UnityEditor中显示射线，Hololens上验证成功
public void AddRay(YoloBoundingBox box, Vector2 pixelPosition, uint boxWidth, uint boxHeight, int ImageWidth, int ImageHeight, Matrix4x4 projectionMatrix, Matrix4x4 cameraToWorldMatrix)
{
//Image的xy两轴取值范围均为-1 to +1，需要将像素坐标转化为该范围内。
Vector2 ImagePosZeroToOne = new Vector2(pixelPosition.x / ImageWidth, 1 - (pixelPosition.y / ImageHeight));
Vector2 ImagePosProjected = ((ImagePosZeroToOne * 2.0f) - new Vector2(1.0f, 1.0f));
Vector3 CameraSpacePos = UnProjectVector(projectionMatrix, new Vector3(ImagePosProjected.x, ImagePosProjected.y, 1));
//worldSpaceRayPoint1就是cameraPosition，相当于Ray的起点，而worldSpaceRayPoint2相当于Ray的终点。
Vector3 worldSpaceRayPoint1 = cameraToWorldMatrix.MultiplyPoint(Vector3.zero);
Vector3 worldSpaceRayPoint2 = cameraToWorldMatrix.MultiplyPoint(CameraSpacePos);
UnityEngine.Debug.Log("The Value of RayPosition: " + worldSpaceRayPoint2);
//增加Ray并画出。
rays.Add(new RayPoints()
{
origin = worldSpaceRayPoint1,
direction = worldSpaceRayPoint2 - worldSpaceRayPoint1
});
UnityEngine.Debug.DrawRay(rays[0].origin, rays[0].direction, Color.red, 100);
UnityEngine.Debug.Log("DrawRay Succeed !");
//调用该方法，找到Ray与真实场景的碰撞点，即目标实物所在位置，并实例化标注框。
PlaceBoundingBox(box, worldSpaceRayPoint1, worldSpaceRayPoint2, boxWidth, boxHeight);
}
/// <summary>
/// Display markers of detected object.
/// </summary>
/// <param name="box"><see cref="YoloBoundingBox"/></param>
/// <param name="overlayCanvas"><see cref="Canvas"/></param>
public void DrawYoloBoundingBox(YoloBoundingBox box, Canvas overlayCanvas)
{
// process output boxes
var x = (uint)Math.Max(box.X, 0);
var y = (uint)Math.Max(box.Y, 0);
var w = (uint)Math.Min(overlayCanvas.ActualWidth - x, box.Width);
var h = (uint)Math.Min(overlayCanvas.ActualHeight - y, box.Height);
// fit to current canvas and webcam size
x = _yoloCanvasActualWidth * x / TinyYoloEvaluatorFor1803.EvaluateWidth;
y = _yoloCanvasActualHeight * y / TinyYoloEvaluatorFor1803.EvaluateHeight;
w = _yoloCanvasActualWidth * w / TinyYoloEvaluatorFor1803.EvaluateWidth;
h = _yoloCanvasActualHeight * h / TinyYoloEvaluatorFor1803.EvaluateHeight;
var rectStroke = box.Label == "person" ? _lineBrushGreen : _lineBrushYellow;
var r = new Rectangle
{
Tag = box,
Width = w,
Height = h,
Fill = _fillBrush,
Stroke = rectStroke,
StrokeThickness = _lineThickness,
Margin = new Thickness(x, y, 0, 0)
};
var tb = new TextBlock
{
Margin = new Thickness(x + 4, y + 4, 0, 0),
Text = $"{box.Label} ({Math.Round(box.Confidence, 4)})",
FontWeight = FontWeights.Bold,
Width = 126,
Height = 21,
HorizontalTextAlignment = TextAlignment.Center
};
var textBack = new Rectangle
{
Width = 134,
Height = 29,
Fill = rectStroke,
Margin = new Thickness(x, y, 0, 0)
};
overlayCanvas.Children.Add(textBack);
overlayCanvas.Children.Add(tb);
overlayCanvas.Children.Add(r);
}
private void PlaceBoundingBox(YoloBoundingBox box, Vector3 worldSpaceRayPoint1, Vector3 worldSpaceRayPoint2, uint boxWidth, uint boxHeight)
{
RaycastHit hitInfo;
UnityEngine.Debug.Log("Place Bounding Box Method Start.");
//注：在Unity中，LayerMask用到移位符号，1是开启，0是关闭。可以过滤射线碰撞事件，移位符号左侧为0的表示被射线忽略。
//UserLayer31即为SpatialMapping层
try
{
//检测与真实场景的碰撞
if (Physics.Raycast(worldSpaceRayPoint1, worldSpaceRayPoint2 - worldSpaceRayPoint1, out hitInfo, 8.0f, 1 << 31))
{
UnityEngine.Debug.Log("Physics Raycast Succeed! ");
BoundingBoxPosition = hitInfo.point;
GameObject label = Instantiate <GameObject>(labelTextHolder) as GameObject;
label.transform.position = BoundingBoxPosition;
label.transform.rotation = Camera.main.transform.rotation;
TextMesh labelText = label.GetComponent <TextMesh>();
labelText.text = box.Label + " Confidence: " + box.Confidence.ToString("0.##");
labelText.font = labelFont;
labelText.color = Color.green;
labelText.anchor = TextAnchor.MiddleCenter;
UnityEngine.Debug.Log("The Position of Label Text is : " + label.transform.position + ". The Position of BOunding Box is :" + BoundingBoxPosition);
}
else
{
UnityEngine.Debug.Log("Physics Raycast Failed! ");
objectsCount--;
}
}
catch (Exception e)
{
Debug.LogFormat("Exception occour in the placing bounding box method : {0}", e.Message);
}
this.gameObject.GetComponentInChildren <TextMesh>().color = Color.green;
}
public async Task AddPhoto()
{
// Arrange
string seed = Guid.NewGuid().ToString();
string expectedFilePath = string.Format("1_{0}.jpg", seed);
var photoUploadService = new Mock <IPhotoUploadService>();
photoUploadService.Setup(m => m.UploadPhoto(It.IsAny <IFormFile>(), It.IsAny <string>()))
.ReturnsAsync(expectedFilePath);
int expectedWidth = new Random().Next(1, 5000);
int expectedHeight = new Random().Next(1, 5000);
var mockPhotoRepository = new Mock <IPhotoRepository>();
mockPhotoRepository.Setup(m => m.GetImageDimensions(It.IsAny <IFormFile>()))
.ReturnsAsync((expectedHeight, expectedWidth));
var mockCommentRepository = new Mock <ICommentRepository>();
var mockHost = new Mock <IWebHostEnvironment>();
string expectedWebRootPath = seed;
mockHost.SetupGet(m => m.WebRootPath).Returns(expectedWebRootPath);
IDictionary <string, IList <YoloBoundingBox> > expectedObjectsDict = new Dictionary <string, IList <YoloBoundingBox> >();
string expectedLabel = string.Format("bird_{0}", seed);
YoloBoundingBox expectedBoundingBox = new YoloBoundingBox()
{
Label = expectedLabel
};
string expectedKey = Path.Combine(expectedWebRootPath, "uploads", expectedFilePath);
expectedObjectsDict.Add(expectedKey, new List <YoloBoundingBox>()
{
expectedBoundingBox
});
var mockObjectDetectionService = new Mock <IObjectDetectionService>();
mockObjectDetectionService.Setup(m => m.DetectObjectsFromImages(It.IsAny <List <string> >(), It.IsAny <string>(), It.IsAny <string>()))
.Returns(expectedObjectsDict);
var mockCategoryRepository = new Mock <ICategoryRepository>();
Category expectedCategory = new Category()
{
Name = expectedLabel
};
mockCategoryRepository.Setup(m => m.GetByNames(new List <string>()
{
expectedLabel
}))
.Returns(new List <Category>()
{
expectedCategory
});
string expectedUserName = string.Format("test_{0}@gmail.com", seed);
ControllerContext controllerContext = Utilities.SetupCurrentUserForController(expectedUserName);
var mockUserRepository = new Mock <IUserRepository>();
User expectedUser = new User()
{
Id = seed,
UserName = expectedUserName
};
mockUserRepository.Setup(m => m.GetOrAdd(It.IsAny <User>())).Returns(expectedUser);
var mockAlbumRepository = new Mock <IAlbumRepository>();
var mockUnitOfWork = new Mock <IUnitOfWork>();
PhotosController controller = new PhotosController(this._mapper, mockPhotoRepository.Object, mockCategoryRepository.Object,
mockUserRepository.Object, mockCommentRepository.Object, mockAlbumRepository.Object, mockUnitOfWork.Object, photoUploadService.Object, mockHost.Object, mockObjectDetectionService.Object);
controller.ControllerContext = controllerContext;
PhotoResource originalResource = new PhotoResource()
{
Id = new Random().Next(1, 100),
FileToUpload = new Mock <IFormFile>().Object,
Name = seed,
LocLng = new Random().Next(1, 100),
LocLat = new Random().Next(1, 100),
CenterLng = new Random().Next(1, 100),
CenterLat = new Random().Next(1, 100),
MapZoom = new Random().Next(1, 100),
FilePath = expectedFilePath,
Width = expectedWidth,
Height = expectedHeight,
PhotoCategories = new List <CategoryResource>()
{
new CategoryResource()
{
Name = expectedLabel
}
},
Author = new UserResource()
{
UserName = expectedUserName
}
};
// Act
var result = await controller.CreatePhoto(originalResource);
// Assert
Assert.IsType <OkObjectResult>(result);
Assert.IsType <PhotoResource>(((OkObjectResult)result).Value);
PhotoResource returnedPhotoResource = (PhotoResource)((OkObjectResult)result).Value;
Assert.True(returnedPhotoResource.Equals(originalResource));
}