// Method for making the chart based on the data and user input
private PlotModel Chartmaker(string inhoud, int maand, string mastr)
{
new Thread(new ThreadStart(Getdata)).Start();
// Filtering the Bike containers
AdaptedList <BikeContainer> Fietstrommels2 =
FietsTrommels.Filter(element => element.Deelgemeente == inhoud.ToLower());
// Filtering the Theft
AdaptedList <Theft> FietsDiefstal2 =
FietsDiefstal.Filter(element => element.Neighbourhood == inhoud.ToLower());
AdaptedList <Month> months = this.dataFactory.CreateMonths(new AdaptedList <DateTime>(FietsDiefstal2.Map <DateTime>(e => e.Date).OrderBy(e => e.Date).ToList()), false);
months = months.Filter(item => item.GetMonth == maand);
//Making arrays
int[] bak = new int[] { Fietstrommels2.Count };
int[] thefts = new[] { months[0].EventsThisMonth };
string[] xas = new[] { Extensions.FirstCharToUpper("Bike thefts in " + Fietstrommels2[0].Deelgemeente + " for the month " + mastr) };
//Making a chart
PlotModel model = GraphMaker.Mutiplebarschartmaker(bak, thefts, "Fietstrommels", "Diefstallen");
model = GraphMaker.Axisdecorator(model, xas, false);
return(model);
}
public AdaptedList <Month> CreateMonths(AdaptedList <DateTime> Dates, bool splitYears)
{
AdaptedList <Month> SortedMonths = new AdaptedList <Month>();
Predicate <Month> Predicate;
//e => (e.GetYear == date.Year) && (e.GetMonth == date.Month)
foreach (DateTime date in Dates)
{
if (splitYears)
{
Predicate = e => (e.GetYear == date.Year) && (e.GetMonth == date.Month);
}
else
{
Predicate = e => (e.GetMonth == date.Month);
}
// Temporary filtered list to check if the month already exists.
AdaptedList <Month> PredicateMonthList = SortedMonths.Filter(Predicate);
if (PredicateMonthList.Count == 0)
{
SortedMonths.Add(new Month(date, 1));
}
else if (PredicateMonthList.Count == 1)
{
PredicateMonthList[0].EventsThisMonth += 1;
}
else
{
break;
}
}
return(SortedMonths);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.BarPage);
plotViewModel = FindViewById <PlotView>(Resource.Id.plotViewModel);
mLLayoutModel = FindViewById <LinearLayout>(Resource.Id.linearLayoutModel);
AdaptedList <BikeContainer> FietsTrommels = DataFactory.GetBikeContainers();
string[] neighbourhoods = new string[] { "noord", "delfshaven", "centrum", "feijenoord", "kralingen" };
int[] CountsPerNeighbourhood = new int[5];
for (int i = 0; i < neighbourhoods.Length; i++)
{
CountsPerNeighbourhood[i] = FietsTrommels.Filter(
item => item.Deelgemeente == neighbourhoods[i]
).Count;
neighbourhoods[i] = Extensions.FirstCharToUpper(neighbourhoods[i]);
}
plotModel = Core.GraphMaker.Barchartmaker(CountsPerNeighbourhood, colors);
//Makes the axes unscrollable. Do not use with pie-chart!
plotModel = Core.GraphMaker.Axisdecorator(plotModel, neighbourhoods, false);
//Adding a legend (Optional) Best use with Pie chart.
//mLLayoutModel = Core.GraphMaker.Legendamaker(colors, this, modelAllocations, mLLayoutModel, 150);
//Adding the model to the view
MyModel = plotModel;
plotViewModel.Model = MyModel;
}
private void GetData()
{
// Getting BikeTheft data from the database.
if (TheftDates == null)
{
InvokeUI(() => Toast.MakeText(Application.Context, "Graph is loading...", ToastLength.Long).Show());
TheftDates = dataFactory.GetBikeThefts().Map <DateTime>(e => new DateTime(e.Date.Year, e.Date.Month, 1));
TheftDates = TheftDates.Filter(e => e > new DateTime(2011, 1, 1) && e < DateTime.Now);
}
// For sparing memory, we clear the Theftlist.
IDataProcessor <PlotModel> LineChart = new LineChartBuilder(ref TheftDates);
Model = LineChart.GetProcessedData();
InvokeUI(() => this.plotView.Model = Model);
}
