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Using AreaStyle

#1

hello support team

  i want to color the province based on id 

but when i use the below code , my application color outside the province not the inside, can you please guide me.



                    ShapeFileFeatureLayer layer = new ShapeFileFeatureLayer(Server.MapPath(ConfigurationManager.AppSettings["ProvinceFilePath"]));

                    ClassBreakStyle classBreakStyle = new ClassBreakStyle(ColumnId,BreakValueInclusion.IncludeValue);

                        foreach (var d in collfeatures)
                        {
                            int ID = Convert.ToInt32(d.ColumnValues[ColumnId]);

                            if (ID == 4) //ID is changed dynamically but we use 4 simply
                            {

                                Collection<Style> stylecoll = new Collection<Style>();
                                    stylecoll.Add(new TextStyle(ColumnName, new GeoFont("Arial", 10, DrawingFontStyles.Regular), new GeoSolidBrush(GeoColor.StandardColors.Black)));
                                    stylecoll.Add(new AreaStyle(new GeoSolidBrush(GeoColor.FromHtml("#0000FF"))));


                                    classBreakStyle.ClassBreaks.Add(new ClassBreak(Convert.ToDouble(ID), stylecoll));

                            }



                        }

                        layer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(AreaStyles.Country1);
                        layer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(classBreakStyle);
                        layer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
                        layer.DrawingMarginPercentage = 100;
                        
                        Proj4Projection proj4 = new Proj4Projection();
                        proj4.InternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(4326);
                        proj4.ExternalProjectionParametersString = Proj4Projection.GetGoogleMapParametersString();
                        layer.FeatureSource.Projection = proj4;
                        if (!proj4.IsOpen)
                            proj4.Open();
                        
                        graduatedoverlay.Layers.Add(layer);






























#2

Hi Hassan, 
  
 Please don’t set areastyle and classBreakStyle at the same time, if you want to show special style for id 4 feature, please assign AreaStyles.Country1 for the other id feature. You add AreaStyles.Country1 and classBreakStyle to map at same time, it won’t render just like what you want. 
  
 Regards, 
  
 Don

#3

Hi Don 
  
 Can you please send me an example for this situation. you have guided me just use areastyle for color the province but don’t sent any example. 


#4

Hi hassan, 
  
 I guess you would like to render each province with different color based on its ID, in other words, different Id has different colors, in that case, maybe ValueStyle is a better option for you, here as following are the explanations of these 2 styles: 
  
   ClassBreakStyle - Used to render feature groups differently based on their data values, ie. 0-100 Red, 100-200 Blue. 
   ValueStyle - Renders features differntly based on absolute values in their data, ie. MiddleSchool = Red, HighSchool=Blue. 
  
 Here as following are the demo code: 
  
                ShapeFileFeatureLayer citiesLayer = new ShapeFileFeatureLayer(Server.MapPath("~/SampleData/World/capital.shp"));   
                citiesLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;  
                  
                // Draw features based on values  
                ValueStyle valueStyle = new ValueStyle();  
                valueStyle.ColumnName = "POP_RANK";  
                valueStyle.ValueItems.Add(new ValueItem("1", PointStyles.Capital1));  
                valueStyle.ValueItems.Add(new ValueItem("2", PointStyles.Capital3));  
                valueStyle.ValueItems.Add(new ValueItem("3", PointStyles.City7));  
                citiesLayer.ZoomLevelSet.ZoomLevel01.CustomStyles.Add(valueStyle);

 
  
 Thanks, 
 Johnny

#5

Thank you , perfect solution

#6

Good, any questions please feel free to let us know. 
  
 Regards, 
 Johnny