private async void MyTransformButton_Click(object sender, RoutedEventArgs e) { int resample = int.Parse(MyResampleText.Text); double scale = double.Parse(MyScaleText.Text); double x = double.Parse(MyTranslateX.Text); double y = double.Parse(MyTranslateY.Text); Point point = new Point(x, y); foreach (StorageFile loadFile in myLoadFiles) { string loadFileName = loadFile.Name; Sketch sketch = await SketchTools.XmlToSketch(loadFile); if (MyResampleCheckBox.IsChecked.Value) { sketch = SketchTransformation.Resample(sketch, resample); } if (MyScaleCheckBox.IsChecked.Value) { sketch = SketchTransformation.ScaleFrame(sketch, scale); } if (MyTranslateCheckBox.IsChecked.Value) { sketch = SketchTransformation.TranslateFrame(sketch, point); } StorageFile saveFile = await mySaveFolder.CreateFileAsync(loadFileName, CreationCollisionOption.ReplaceExisting); SketchTools.SketchToXml(saveFile, sketch.Label, sketch.Strokes, sketch.Times, sketch.FrameMinX, sketch.FrameMinY, sketch.FrameMaxX, sketch.FrameMaxY); } }
private void MyPage_Loaded(object sender, RoutedEventArgs e) { // initializer the feedback recognizers myStructureRecognizer = new StructureRecognizer(); myTechniqueRecognizer = new TechniqueRecognizer(); // squarify the ink canvas' drawing area double width = MyBorder.ActualWidth; double height = MyBorder.ActualHeight; BorderLength = width < height ? width : height; MyBorder.Width = MyBorder.Height = BorderLength; // initialize the external timing data structure and offset myTimeCollection = new List <List <long> >(); MyDateTimeOffset = 0; // enable writing and set the stroke visuals of the ink canvas MyInkStrokes = MyInkCanvas.InkPresenter.StrokeContainer; MyInkCanvas.InkPresenter.InputDeviceTypes = CoreInputDeviceTypes.Pen | CoreInputDeviceTypes.Mouse | CoreInputDeviceTypes.Touch; MyInkCanvas.InkPresenter.UpdateDefaultDrawingAttributes(StrokeVisuals); // load the images and templates LoadContents(IMAGES_PATH, out myImageFiles, ".png"); LoadContents(TEMPLATES_PATH, out myTemplateFiles, ".xml"); // populate the symbols combo box foreach (StorageFile file in myImageFiles) { MySymbolsComboBox.Items.Add(Path.GetFileNameWithoutExtension(file.Path)); } MySymbolsComboBox.SelectedIndex = 0; // set the prompt text string promptedSymbol = MySymbolsComboBox.SelectedValue.ToString().ToUpper(); MyPrompText.Text = PROMPT_TEXT + promptedSymbol; // modify the templates to fit the current ink canvas' drawing area myTemplates = new List <Sketch>(); foreach (StorageFile file in myTemplateFiles) { Sketch template = null; Task task = Task.Run(async() => template = await SketchTools.XmlToSketch(file)); task.Wait(); template = SketchTransformation.ScaleFrame(template, BorderLength); template = SketchTransformation.TranslateFrame(template, new Point(BorderLength / 2 - MyBorder.BorderThickness.Left, BorderLength / 2 - MyBorder.BorderThickness.Top)); myTemplates.Add(template); foreach (InkStroke stroke in template.Strokes) { stroke.DrawingAttributes = StrokeVisuals; } } // set the flag to allow buttons to run code MyIsReady = true; }
private async void MyStrokeCountPlayButton_Click(object sender, RoutedEventArgs e) { // do not show feedback if canvas has no strokes if (MyInkStrokes.GetStrokes().Count <= 0) { return; } // EnableTechniqueButtons(false); // get the model and input strokes Sketch model = myTemplates[MyCurrentIndex]; model = SketchTools.Clone(model); Sketch input = Sketch.CreateStroke("", new List <InkStroke>(MyInkStrokes.GetStrokes()), myTimeCollection, 0, 0, BorderLength, BorderLength); input = SketchTools.Clone(input); input = SketchTransformation.Resample(input, 128); // set the animation colors SolidColorBrush modelBrush = new SolidColorBrush(Colors.Green) { Opacity = 1.0 }; SolidColorBrush inputBrush = new SolidColorBrush(Colors.Red) { Opacity = 1.0 }; // get the animations List <Storyboard> modelStoryboards = InteractionTools.DisplayEndpoints(MyCanvas, model.Strokes, modelBrush, LARGE_DOT_SIZE, STROKE_DURATION); List <Storyboard> inputStoryboards = InteractionTools.DisplayEndpoints(MyCanvas, input.Strokes, inputBrush, SMALL_DOT_SIZE, STROKE_DURATION, model); // animate the feedback foreach (Storyboard storyboard in modelStoryboards) { storyboard.Begin(); } foreach (Storyboard storyboard in inputStoryboards) { storyboard.Begin(); } // re-add the original strokes to the ink canvas and re-enable return button int delay = STROKE_DURATION * model.Strokes.Count; await InteractionTools.Delay(delay); // EnableTechniqueButtons(true); }
private double GetResampledPairwiseDistance(Sketch input, Sketch model, int i, int j) { // get the corresponding model stroke, points, and point count InkStroke modelStroke = model.Strokes[j]; List <InkPoint> modelPoints = new List <InkPoint>(modelStroke.GetInkPoints()); int numModelPoints = modelPoints.Count; // wrap the current input stroke into a sketch, then resample to match model stroke InkStroke inputStroke = input.Strokes[i]; List <long> inputTimes = input.Times[i]; Sketch inputSketch = new Sketch("", new List <InkStroke>() { inputStroke }, new List <List <long> > { inputTimes }, 0, 0, 0, 0); // resample the input stroke's points to match the current model stroke's points inputSketch = SketchTools.Clone(inputSketch); inputSketch = SketchTransformation.Resample(inputSketch, modelPoints.Count); inputStroke = inputSketch.Strokes[0]; // get the number of points to iterate between the corresponding model and input stroke int numInputPoints = inputStroke.GetInkPoints().Count; int count = numModelPoints < numInputPoints ? numModelPoints : numInputPoints; // calculate the distances both forward and backwards between the model and input strokes double distance1 = 0.0; double distance2 = 0.0; for (int a = 0, b = count - 1; a < count; ++a, --b) { InkPoint modelPoint = modelStroke.GetInkPoints()[a]; InkPoint inputPoint1 = inputStroke.GetInkPoints()[a]; InkPoint inputPoint2 = inputStroke.GetInkPoints()[b]; distance1 += SketchTransformation.Distance(modelPoint, inputPoint1); distance2 += SketchTransformation.Distance(modelPoint, inputPoint2); } double distance = distance1 < distance2 ? distance1 : distance2; return(distance); }
private async void MyStrokeDirectionPlayButton_Click(object sender, RoutedEventArgs e) { // do not show feedback if canvas has no strokes or incorrect stroke count if (MyInkStrokes.GetStrokes().Count <= 0) { return; } if (!myTechniqueRecognizer.StrokeCountResult) { return; } // EnableTechniqueButtons(false); // get the input sketch and stroke directions Sketch input = Sketch.CreateStroke("", new List <InkStroke>(MyInkStrokes.GetStrokes()), myTimeCollection, 0, 0, BorderLength, BorderLength); input = SketchTools.Clone(input); input = SketchTransformation.Resample(input, 128); List <bool> strokeDirections = new List <bool>(myTechniqueRecognizer.StrokeDirections); // create solution InkStrokeBuilder builder = new InkStrokeBuilder(); List <InkStroke> solutionStrokes = new List <InkStroke>(); for (int i = 0; i < input.Strokes.Count; ++i) { // get the current input stroke and times InkStroke inputStroke = input.Strokes[i]; List <long> inputTimes = input.Times[i]; // get current input points and stroke direction status List <InkPoint> inputPoints = new List <InkPoint>(inputStroke.GetInkPoints()); bool strokeDirection = strokeDirections[i]; // create the solution stroke List <Point> solutionPoints = new List <Point>(); foreach (InkPoint inputPoint in inputPoints) { solutionPoints.Add(new Point(inputPoint.Position.X, inputPoint.Position.Y)); } if (!strokeDirection) { solutionPoints.Reverse(); } InkStroke solutionStroke = builder.CreateStroke(solutionPoints); // add the solution stroke to the list solutionStrokes.Add(solutionStroke); } // display solution SolidColorBrush newInputBrush = new SolidColorBrush(Colors.Black) { Opacity = 1.0 }; List <Storyboard> newInputStoryboards = InteractionTools.Trace(MyCanvas, solutionStrokes, input.Times, LARGE_DOT_SIZE, newInputBrush, POINT_DURATION); foreach (Storyboard storyboard in newInputStoryboards) { storyboard.Begin(); } // display original SolidColorBrush inputBrush = new SolidColorBrush(Colors.Red) { Opacity = 1.0 }; List <Storyboard> inputStoryboards = InteractionTools.Trace(MyCanvas, input.Strokes, input.Times, LARGE_DOT_SIZE, inputBrush, POINT_DURATION); foreach (Storyboard storyboard in inputStoryboards) { storyboard.Begin(); } // re-enable return button int delay = 0; foreach (InkStroke inputStroke in input.Strokes) { delay += POINT_DURATION * inputStroke.GetInkPoints().Count; } await InteractionTools.Delay(delay); // EnableTechniqueButtons(true); }
private async void MyPlayButton_Click(object sender, RoutedEventArgs e) { // get the input and model sketch, and set the duration List <InkStroke> strokes = new List <InkStroke>(); foreach (InkStroke stroke in MyInkStrokes.GetStrokes()) { strokes.Add(stroke); } Sketch input = new Sketch("", strokes, myTimeCollection, 0, 0, MyBorderLength, MyBorderLength); Sketch model = myTemplates[MyImageIndex]; int duration = 30000; // animate the expert's model strokes if (MyImageButton.IsChecked.Value) { Sketch sketch = SketchTools.Clone(model); double opacity = strokes.Count > 0 ? 0.8 : 1.0; Color color = strokes.Count > 0 ? Colors.Black : Colors.Green; SolidColorBrush brush = new SolidColorBrush(color) { Opacity = opacity }; List <Storyboard> modelStoryboards = InteractionTools.Trace(MyCanvas, sketch.Strokes, sketch.Times, brush, duration); foreach (Storyboard storyboard in modelStoryboards) { storyboard.Begin(); } } // animate the user's input strokes if (strokes.Count > 0) { Sketch sketch = SketchTools.Clone(input); sketch = SketchTransformation.Resample(sketch, 128); double opacity = 1.0; Color color = Colors.Red; SolidColorBrush brush = new SolidColorBrush(color) { Opacity = opacity }; List <Storyboard> inputStoryboards = InteractionTools.Trace(MyCanvas, sketch.Strokes, sketch.Times, brush, duration, model); foreach (Storyboard storyboard in inputStoryboards) { storyboard.Begin(); } } // if (strokes.Count == 0 && !MyImageButton.IsChecked.Value) { return; } // int numModelPoints = 0; foreach (InkStroke stroke in model.Strokes) { numModelPoints += stroke.GetInkPoints().Count; } int delay = (numModelPoints * duration) / 10000; MyPlayButton.IsEnabled = false; MyInkCanvas.InkPresenter.IsInputEnabled = false; await Task.Delay(delay); MyPlayButton.IsEnabled = true; MyInkCanvas.InkPresenter.IsInputEnabled = true; }