csDataServerPlugin.PoiGraphic.UpdateScale C# (CSharp) Метод

        public void UpdateScale(bool forceUpdate = false)
        {
            if (Poi.NEffectiveStyle.ScalePoi == null || !Poi.NEffectiveStyle.ScalePoi.Value) return;

            double maxScale = Poi.NEffectiveStyle.MaxScale ?? 4;
            double scaleUnits = Poi.NEffectiveStyle.ScaleUnits ?? 50;
            double scaleStartResolution = Poi.NEffectiveStyle.ScaleStartResolution ?? 50;
            var currRes = AppState.ViewDef.MapControl.Resolution;
            var scale = Math.Min(Math.Max(1, scaleUnits * currRes / scaleStartResolution), maxScale);
            if (!forceUpdate && lastScale == scale) return;

            if (Poi == null) return;
            double height;
            double width;
            if (Poi != null)
            {
                height = Poi.NEffectiveStyle.IconHeight == null ? 32.0 : Poi.NEffectiveStyle.IconHeight.Value;
                width = Poi.NEffectiveStyle.IconWidth == null ? 32.0 : Poi.NEffectiveStyle.IconWidth.Value;
            }
            else
            {
                height = 32.0;
                width = 32.0;
            }

            if (Poi != null && Poi.Data != null && Poi.Data.ContainsKey("graphic"))
            {
                var staticGraphic = Poi.Data["graphic"] as StaticGraphic;
                if (staticGraphic != null)
                {
                    var symbol = staticGraphic.Symbol as SimpleMarkerSymbol;
                    if (symbol != null)
                    {
                        if (currRes > scaleStartResolution)
                        {
                            symbol.Size = height / scale;
                        }
                        else
                        {
                            symbol.Size = height;
                        }
                    }
                }
            }
            if (Symbol is PictureMarkerSymbol)
            {
                var pms = (PictureMarkerSymbol)Symbol;

                if (currRes > scaleStartResolution)
                {
                    pms.Width = width / scale;
                    pms.Height = height / scale;
                    //pms.Width *= 0.85f;
                    //pms.Height *= 0.85f;
                }
                else
                {
                    pms.Width = width;
                    pms.Height = height;
                }
                pms.OffsetX = pms.Width / 2;
                pms.OffsetY = pms.Height / 2;
            }
            if (ImageGraphic != null)
            {
                var pms = (PictureMarkerSymbol)ImageGraphic.Symbol;

                if (currRes > scaleStartResolution)
                {
                    pms.Width = width / scale;
                    pms.Height = height / scale;
                    //pms.Width *= 0.85f;
                    //pms.Height *= 0.85f;

                    if (ImageGraphic.MapTip == null)
                    {
                        ImageGraphic.MapTip = new Label() { Content = Poi.Labels.ContainsKey(Poi.NEffectiveStyle.NameLabel) ? Poi.Labels[Poi.NEffectiveStyle.NameLabel] : string.Empty };
                    }
                }
                else
                {
                    //pms.Width = width * 0.85f;
                    //pms.Height = height * 0.85f;
                    ImageGraphic.MapTip = null;
                }
                pms.OffsetX = pms.Width / 2;
                pms.OffsetY = pms.Height / 2;
            }

            if (LabelGraphic != null && LabelGraphic.Geometry != null && currRes > Poi.NEffectiveStyle.MaxTitleResolution)
            {
                LabelGraphic.Geometry = null;

            }
            else if (Visible && LabelGraphic != null && LabelGraphic.Geometry == null && currRes < Poi.NEffectiveStyle.MaxTitleResolution)
            {
                LabelGraphic.Geometry = BaseGeometry;
                MapTip = null;
            }
            lastScale = scale;
        }