AffdexMe.DrawingCanvas.OnRender C# (CSharp) Метод

        protected override void OnRender(System.Windows.Media.DrawingContext dc)
        {

            //For each face
            foreach (KeyValuePair<int, Affdex.Face> pair in Faces)
            {
                
                Affdex.Face face = pair.Value;

                var featurePoints = face.FeaturePoints;

                //Calculate bounding box corners coordinates.
                System.Windows.Point tl = new System.Windows.Point(featurePoints.Min(r => r.X) * XScale,
                                                   featurePoints.Min(r => r.Y) * YScale);
                System.Windows.Point br = new System.Windows.Point(featurePoints.Max(r => r.X) * XScale,
                                                                   featurePoints.Max(r => r.Y) * YScale);

                System.Windows.Point bl = new System.Windows.Point(tl.X, br.Y);

                //Draw Points
                if (DrawPoints)
                {
                    foreach (var point in featurePoints)
                    {
                        dc.DrawEllipse(pointBrush, null, new System.Windows.Point(point.X * XScale, point.Y * YScale), fpRadius, fpRadius);
                    }

                    //Draw BoundingBox
                    dc.DrawRectangle(null, boundingPen, new System.Windows.Rect(tl, br));
                }

                //Draw Metrics  
                if (DrawMetrics)
                {
                    double padding = (bl.Y - tl.Y) / MetricNames.Count;
                    double startY = tl.Y - padding;
                    foreach (string metric in MetricNames)
                    {
                        double width = maxTxtWidth;
                        double height = maxTxtHeight;
                        float value = -1;
                        PropertyInfo info;
                        if ((info = face.Expressions.GetType().GetProperty(NameMappings(metric))) != null)
                        {
                            value = (float)info.GetValue(face.Expressions, null);
                        }
                        else if ((info = face.Emotions.GetType().GetProperty(NameMappings(metric))) != null)
                        {
                            value = (float)info.GetValue(face.Emotions, null);
                        }

                        SolidColorBrush metricBrush = value > 0 ? pozMetricBrush : negMetricBrush;
                        value = Math.Abs(value);
                        SolidColorBrush txtBrush = value > 1 ? emojiBrush : boundingBrush;

                        double x = tl.X - width - margin;
                        double y = startY += padding;
                        double valBarWidth = width * (value / 100);

                        if (value > 1) dc.DrawRectangle(null, boundingPen, new System.Windows.Rect(x, y, width, height));
                        dc.DrawRectangle(metricBrush, null, new System.Windows.Rect(x, y, valBarWidth, height));

                        FormattedText metricFTScaled = new FormattedText((String)upperConverter.Convert(metric, null, null, null),
                                                                System.Globalization.CultureInfo.CurrentCulture,
                                                                System.Windows.FlowDirection.LeftToRight,
                                                                metricTypeFace, metricFontSize * width / maxTxtWidth, txtBrush);

                        dc.DrawText(metricFTScaled, new System.Windows.Point(x, y));
                    }
                }


                //Draw Emoji
                if (DrawEmojis)
                {
                    if (face.Emojis.dominantEmoji != Affdex.Emoji.Unknown)
                    {
                        BitmapImage img = emojiImages[face.Emojis.dominantEmoji];
                        double imgRatio = ((br.Y - tl.Y) * 0.3) / img.Width;
                        System.Windows.Point tr = new System.Windows.Point(br.X + margin, tl.Y);
                        dc.DrawImage(img, new System.Windows.Rect(tr.X, tr.Y, img.Width * imgRatio, img.Height * imgRatio));
                    }
                }

                //Draw Appearance metrics
                if (DrawAppearance)
                {
                    BitmapImage img = appImgs[ConcatInt((int)face.Appearance.Gender, (int)face.Appearance.Glasses)];
                    double imgRatio = ((br.Y - tl.Y) * 0.3) / img.Width;
                    double imgH = img.Height * imgRatio;
                    dc.DrawImage(img, new System.Windows.Rect(br.X + margin, br.Y - imgH, img.Width * imgRatio, imgH));
                }
            }

            
            
            
            //base.OnRender(dc);
        }