private void UpdateAnnotationOffsets(SceneNodeContainer sncAnnotation, UIInput input)
{
if (input.CircleCanvasPos.x <= _canvasWidth / 2)
{
//LEFT
sncAnnotation.GetComponent <RectTransformComponent>().Anchors = UIElementPosition.GetAnchors(AnchorPos.DOWN_DOWN_LEFT);
sncAnnotation.GetComponent <RectTransformComponent>().Offsets = UIElementPosition.CalcOffsets(
AnchorPos.DOWN_DOWN_LEFT, input.AnnotationCanvasPos,
UIHelper.CanvasHeightInit, UIHelper.CanvasWidthInit, UIHelper.AnnotationDim);
}
else
{
//RIGHT
sncAnnotation.GetComponent <RectTransformComponent>().Anchors = UIElementPosition.GetAnchors(AnchorPos.DOWN_DOWN_RIGHT);
sncAnnotation.GetComponent <RectTransformComponent>().Offsets = UIElementPosition.CalcOffsets(
AnchorPos.DOWN_DOWN_RIGHT, input.AnnotationCanvasPos,
UIHelper.CanvasHeightInit, UIHelper.CanvasWidthInit, UIHelper.AnnotationDim);
}
}
private void CalculateNonIntersectingAnnotationPositions(ref UIInput input, ref Dictionary <int, float2> intersectedAnnotations, ref int iterations)
{
if (!input.IsVisible)
{
return;
}
var intersectionCount = 0;
for (var i = 0; i < _uiInput.Count; i++)
{
var counterpart = _uiInput[i];
if (counterpart.Identifier == input.Identifier || !counterpart.IsVisible || intersectedAnnotations.ContainsKey(counterpart.Identifier))
{
continue;
}
var halfAnnotationHeight = (UIHelper.AnnotationDim.y / 2f);
var buffer = halfAnnotationHeight - (halfAnnotationHeight / 100f * 10f);
//If we do not multiply by the resize scale factor the intersction test will return wrong results because AnnotationCanvasPos is in the range of the size of the initial canvas.
var intersect = UIHelper.DoesAnnotationIntersectWithAnnotation(input.AnnotationCanvasPos, _uiInput[i].AnnotationCanvasPos, new float2(0, buffer));
if (!intersect || intersectedAnnotations.ContainsKey(counterpart.Identifier))
{
continue;
}
intersectedAnnotations.Add(counterpart.Identifier, _uiInput[i].AnnotationCanvasPos);
intersectionCount++;
}
if (intersectionCount == 0)
{
return;
}
if (intersectedAnnotations.Count >= 1)
{
if (!intersectedAnnotations.ContainsKey(input.Identifier))
{
intersectedAnnotations.Add(input.Identifier, input.AnnotationCanvasPos); //add pos that is just being checked
}
var orderedBy = intersectedAnnotations.OrderBy(item => item.Value.y).ToList();
intersectedAnnotations = new Dictionary <int, float2>();
foreach (var keyValue in orderedBy) //JSIL not implemented exception: ToDictionary
{
intersectedAnnotations.Add(keyValue.Key, keyValue.Value);
}
var middleIndex = (intersectedAnnotations.Count) / 2;
var averagePos = new float2();
for (var i = 0; i < intersectedAnnotations.Count; i++)
{
averagePos += intersectedAnnotations.ElementAt(i).Value;
}
averagePos /= intersectedAnnotations.Count;
for (var i = 0; i < intersectedAnnotations.Count; i++)
{
var identifier = intersectedAnnotations.ElementAt(i).Key;
var thisInput = _uiInput[identifier];
thisInput.AnnotationCanvasPos = averagePos;
var multiplier = System.Math.Abs(i - middleIndex);
//Distance between annotations is 0.5* AnnotationDim.y
if (intersectedAnnotations.Count % 2 == 0) //even
{
if (i == middleIndex - 1)
{
thisInput.AnnotationCanvasPos.y -= 0.75f * UIHelper.AnnotationDim.y;
}
else if (i == middleIndex)
{
thisInput.AnnotationCanvasPos.y += 0.75f * UIHelper.AnnotationDim.y;
}
else if (i > middleIndex)
{
thisInput.AnnotationCanvasPos.y += (0.75f * UIHelper.AnnotationDim.y) + (multiplier * (UIHelper.AnnotationDim.y + UIHelper.AnnotationDim.y / 2));
}
else if (i < middleIndex)
{
thisInput.AnnotationCanvasPos.y -= (0.75f * UIHelper.AnnotationDim.y) + ((multiplier - 1) * (UIHelper.AnnotationDim.y + UIHelper.AnnotationDim.y / 2));
}
}
else //odd
{
if (i > middleIndex)
{
thisInput.AnnotationCanvasPos.y += 0.5f * multiplier * UIHelper.AnnotationDim.y + (UIHelper.AnnotationDim.y * multiplier);
}
else if (i < middleIndex)
{
thisInput.AnnotationCanvasPos.y -= 0.5f * multiplier * UIHelper.AnnotationDim.y + (UIHelper.AnnotationDim.y * multiplier);
}
}
_uiInput[identifier] = thisInput;
}
}
//Recursively check all annotations that where involved in this intersection
for (var i = 0; i < intersectedAnnotations.Count; i++)
{
if (i != 0 && i != intersectedAnnotations.Count - 1)
{
continue;
}
iterations++;
var identifier = intersectedAnnotations.ElementAt(i).Key;
var uiInput = _uiInput[identifier];
CalculateNonIntersectingAnnotationPositions(ref uiInput, ref intersectedAnnotations, ref iterations);
}
}
// Init is called on startup.
public override void Init()
{
if (_canvasRenderMode == CanvasRenderMode.SCREEN)
{
UIHelper.CanvasWidthInit = Width / 100f;
UIHelper.CanvasHeightInit = Height / 100f;
}
else
{
UIHelper.CanvasHeightInit = 16;
UIHelper.CanvasWidthInit = 9;
}
_canvasHeight = UIHelper.CanvasHeightInit;
_canvasWidth = UIHelper.CanvasWidthInit;
_uiInput = new List <UIInput>();
_initWidth = Width;
_initHeight = Height;
_aspectRatio = Width / (float)Height;
//_scene = BuildScene();
_scene = AssetStorage.Get <SceneContainer>("Monkey.fus");
var monkey = _scene.Children[0].GetComponent <Mesh>();
var rnd = new Random();
var numberOfTriangles = monkey.Triangles.Length / 3;
var projComp = _scene.Children[0].GetComponent <ProjectionComponent>();
AddResizeDelegate(delegate { projComp.Resize(Width, Height); });
//Create dummy positions on model
for (var i = 0; i < NumberOfAnnotations; i++)
{
var triangleNumber = rnd.Next(1, numberOfTriangles);
var triIndex = (triangleNumber - 1) * 3;
var triVert0 = monkey.Vertices[monkey.Triangles[triIndex]];
var triVert1 = monkey.Vertices[monkey.Triangles[triIndex + 1]];
var triVert2 = monkey.Vertices[monkey.Triangles[triIndex + 2]];
var middle = (triVert0 + triVert1 + triVert2) / 3;
var circleCanvasPos = new float2(middle.x, middle.y);
var circleCanvasPosCache = new float2(0, 0);
var prob = (float)rnd.NextDouble();
prob = (float)System.Math.Round(prob, 3);
var dummyClass = UIHelper.DummySegmentationClasses[rnd.Next(0, UIHelper.DummySegmentationClasses.Count - 1)];
var annotationKind = (UIHelper.AnnotationKind)rnd.Next(0, Enum.GetNames(typeof(UIHelper.AnnotationKind)).Length);
var input = new UIInput(annotationKind, middle, new float2(0.65f, 0.65f), dummyClass, prob)
{
Identifier = i,
CircleCanvasPos = circleCanvasPos,
CircleCanvasPosCache = circleCanvasPosCache
};
input.AffectedTriangles.Add(triIndex);
_uiInput.Add(input);
}
_gui = CreateGui();
// Create the interaction handler
_sih = new SceneInteractionHandler(_gui);
//Create a scene picker for performing visibility tests
_scenePicker = new ScenePicker(_scene);
// Set the clear color for the back buffer to white (100% intensity in all color channels R, G, B, A).
RC.ClearColor = new float4(0.1f, 0.1f, 0.1f, 1);
// Wrap a SceneRenderer around the model.
_sceneRenderer = new SceneRenderer(_scene);
_guiRenderer = new SceneRenderer(_gui);
}
// RenderAFrame is called once a frame
public override void RenderAFrame()
{
// Clear the backbuffer
RC.Clear(ClearFlags.Color | ClearFlags.Depth);
RC.Viewport(0, 0, Width, Height);
#region Controls
// Mouse and keyboard movement
if (Input.Keyboard.LeftRightAxis != 0 || Input.Keyboard.UpDownAxis != 0)
{
_keys = true;
}
if (Input.Mouse.LeftButton)
{
_keys = false;
_angleVelHorz = -RotationSpeed * Input.Mouse.XVel * Time.DeltaTime * 0.0005f;
_angleVelVert = -RotationSpeed * Input.Mouse.YVel * Time.DeltaTime * 0.0005f;
}
else if (Input.Touch.GetTouchActive(TouchPoints.Touchpoint_0))
{
_keys = false;
float2 touchVel = Input.Touch.GetVelocity(TouchPoints.Touchpoint_0);
_angleVelHorz = -RotationSpeed * touchVel.x * Time.DeltaTime * 0.0005f;
_angleVelVert = -RotationSpeed * touchVel.y * Time.DeltaTime * 0.0005f;
}
else
{
if (_keys)
{
_angleVelHorz = -RotationSpeed * Input.Keyboard.LeftRightAxis * Time.DeltaTime;
_angleVelVert = -RotationSpeed * Input.Keyboard.UpDownAxis * Time.DeltaTime;
}
else
{
float curDamp = (float)System.Math.Exp(-Damping * Time.DeltaTime);
_angleVelHorz *= curDamp;
_angleVelVert *= curDamp;
}
}
_angleHorz += _angleVelHorz;
_angleVert += _angleVelVert;
// Create the camera matrix and set it as the current ModelView transformation
float4x4 mtxRot = float4x4.CreateRotationX(_angleVert) * float4x4.CreateRotationY(_angleHorz);
float4x4 mtxCam = float4x4.LookAt(0, 0, -5, 0, 0, 0, 0, 1, 0);
float4x4 view = mtxCam * mtxRot;
float4x4 perspective = float4x4.CreatePerspectiveFieldOfView(_fovy, (float)Width / Height, ZNear, ZFar);
float4x4 orthographic = float4x4.CreateOrthographic(Width, Height, ZNear, ZFar);
RC.View = view;
RC.Projection = _canvasRenderMode == CanvasRenderMode.Screen ? orthographic : perspective;
// Constantly check for interactive objects.
if (!Input.Mouse.Desc.Contains("Android"))
{
_sih.CheckForInteractiveObjects(RC, Input.Mouse.Position, Width, Height);
}
if (Input.Touch.GetTouchActive(TouchPoints.Touchpoint_0) && !Input.Touch.TwoPoint)
{
_sih.CheckForInteractiveObjects(RC, Input.Touch.GetPosition(TouchPoints.Touchpoint_0), Width, Height);
}
#endregion Controls
//Annotations will be updated according to circle positions.
//Lines will be updated according to circle and annotation positions.
RC.View = view;
RC.Projection = perspective;
SceneNode canvas = _gui.Children[0];
foreach (SceneNode child in canvas.Children)
{
if (!child.Name.Contains("MarkModelContainer"))
{
continue;
}
//1. Calculate the circles canvas position.
for (int k = 0; k < child.Children.Count; k++)
{
SceneNode container = child.Children[k];
SceneNode circle = container.Children[0];
UIInput uiInput = _uiInput[k];
//the monkey's matrices
SceneNode monkey = _scene.Children[0];
float4x4 model = monkey.GetGlobalTransformation();
float4x4 projection = perspective;
float4x4 mvpMonkey = projection * view * model;
float3 clipPos = float4x4.TransformPerspective(mvpMonkey, uiInput.Position); //divides by 2
float2 canvasPosCircle = new float2(clipPos.x, clipPos.y) * 0.5f + 0.5f;
canvasPosCircle.x *= _canvasWidth;
canvasPosCircle.y *= _canvasHeight;
uiInput.CircleCanvasPos = canvasPosCircle;
var pos = new float2(uiInput.CircleCanvasPos.x - (uiInput.Size.x / 2), uiInput.CircleCanvasPos.y - (uiInput.Size.y / 2)); //we want the lower left point of the rect that encloses the
circle.GetComponent <RectTransform>().Offsets = UIElementPosition.CalcOffsets(AnchorPos.Middle, pos, _canvasHeight, _canvasWidth, uiInput.Size);
//1.1 Check if circle is visible
PickResult newPick = _scenePicker.Pick(RC, new float2(clipPos.x, clipPos.y)).ToList().OrderBy(pr => pr.ClipPos.z).FirstOrDefault();
if (newPick != null && uiInput.AffectedTriangles[0] == newPick.Triangle) //VISIBLE
{
uiInput.IsVisible = true;
var effect = circle.GetComponent <DefaultSurfaceEffect>();
effect.SetDiffuseAlphaInShaderEffect(UIHelper.alphaVis);
}
else
{
uiInput.IsVisible = false;
var effect = circle.GetComponent <DefaultSurfaceEffect>();
effect.SetDiffuseAlphaInShaderEffect(UIHelper.alphaInv);
}
//1.2 Calculate annotation positions without intersections.
if (!uiInput.CircleCanvasPos.Equals(uiInput.CircleCanvasPosCache))
{
float yPosScale = uiInput.CircleCanvasPos.y / _canvasHeight;
yPosScale = (yPosScale - 0.5f) * 2f;
uiInput.AnnotationCanvasPos.y = uiInput.CircleCanvasPos.y - (UIHelper.AnnotationDim.y / 2) + (2 * UIHelper.AnnotationDim.y * yPosScale);
if (uiInput.CircleCanvasPos.x > _canvasWidth / 2) //RIGHT
{
uiInput.AnnotationCanvasPos.x = UIHelper.CanvasWidthInit - UIHelper.AnnotationDim.x - UIHelper.AnnotationDistToLeftOrRightEdge;
}
else
{
uiInput.AnnotationCanvasPos.x = UIHelper.AnnotationDistToLeftOrRightEdge;
}
}
_uiInput[k] = uiInput;
}
// 2. Find intersecting annotations and correct their position in _uiInput.
// Disable rendering of annotation if its corresponding circle is not visible.
for (int k = 0; k < child.Children.Count; k++)
{
SceneNode container = child.Children[k];
SceneNode annotation = container.Children[1];
UIInput uiInput = _uiInput[k];
if (uiInput.IsVisible)
{
if (!uiInput.CircleCanvasPos.Equals(uiInput.CircleCanvasPosCache))
{
Dictionary <int, float2> intersectedAnnotations = new Dictionary <int, float2>();
int iterations = 0;
CalculateNonIntersectingAnnotationPositions(ref uiInput, ref intersectedAnnotations, ref iterations);
}
annotation.GetComponent <NineSlicePlane>().Active = true;
foreach (Mesh comp in annotation.GetComponentsInChildren <Mesh>())
{
comp.Active = true;
}
}
else
{
annotation.GetComponent <NineSlicePlane>().Active = false;
foreach (Mesh comp in annotation.GetComponentsInChildren <Mesh>())
{
comp.Active = false;
}
}
}
// 3. Update annotation positions on canvas and draw line
for (int k = 0; k < child.Children.Count; k++)
{
SceneNode container = child.Children[k];
SceneNode line = container.Children[2];
UIInput uiInput = _uiInput[k];
if (uiInput.IsVisible)
{
if (!uiInput.CircleCanvasPos.Equals(uiInput.CircleCanvasPosCache))
{
UpdateAnnotationOffsets(child.Children[uiInput.Identifier].Children[1], uiInput);
DrawLine(child.Children[uiInput.Identifier].Children[2], uiInput);
}
}
DrawLine(line, uiInput);
uiInput.CircleCanvasPosCache = uiInput.CircleCanvasPos;
_uiInput[k] = uiInput;
}
}
_sceneRenderer.Render(RC);
RC.Projection = _canvasRenderMode == CanvasRenderMode.Screen ? orthographic : perspective;
_guiRenderer.Render(RC);
Present();
}