private void UpdateChart()
{
var precVal = (Math.Abs(_toX) + Math.Abs(_fromX)) * _sliderValue / 200;
ChartData.Clear();
ChartBiRootData.Clear();
ChartFalsiRootData.Clear();
for (var i = _fromX; i < _toX; i += precVal)
{
ChartData.Add(new KeyValuePair <double, double>(i, FunctionSelectorSelectedItem.GetValue(i)));
}
int step = RootsCollection.Count > 100 ? Convert.ToInt32(_divisionRate) / 10 : 1;
IntervalDivNoteBind = step == 1 ? "" : Locale["#IntervalDivNote"].Replace("&arg;", step.ToString());
RaisePropertyChanged(() => IntervalDivNoteBind);
foreach (
var root in
RootsCollection.Where(
(root, i) =>
(i % step == 0) && (root.SourceId == FunctionSelectorSelectedItem.Id) && (root.X > _fromX) && (root.X < _toX)))
{
if (root.Method_Used == "Bi")
{
ChartBiRootData.Add(new KeyValuePair <double, double>(root.X, root.Y));
}
else
{
ChartFalsiRootData.Add(new KeyValuePair <double, double>(root.X, root.Y));
}
}
ProgressBarVisibility = Visibility.Collapsed;
}
private async void SubmitData()
{
double from, to, approx, divRate = 1;
if (!double.TryParse(FromXValueBind, out from) || !double.TryParse(ToXValueBind, out to) ||
!double.TryParse(ApproxValueBind, out approx))
{
MessageBox.Show(Locale["#ValuesParseException"], Locale["#RecommendDiffrentArgs"], MessageBoxButton.OK,
MessageBoxImage.Error);
return;
}
if (from >= to)
{
MessageBox.Show(Locale["#IntervalEndpointsException"], Locale["#RecommendDiffrentArgs"],
MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
if (IsIntervalDivisionEnabled && !double.TryParse(DivisionRateBind, out divRate))
{
MessageBox.Show(Locale["#IntervalDivParseException"], Locale["#RecommendDiffrentArgs"],
MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
ProgressBarVisibility = (int)divRate != 1 ? Visibility.Visible : Visibility.Collapsed;
_fromX = from;
_toX = to;
//Add results to the list.
int noRootsCounter = 0, maxIterCounter = 0, divisionsSuccesses = 0;
var intervalStep = Math.Abs(from - to) / divRate;
var roots = await Task.Run(() =>
{
List <FunctionRoot> output = new List <FunctionRoot>();
for (var i = from; i < to; i += intervalStep)
{
//Prepare argument.
var arg = new GetFunctionRootArgs
{
FromX = i,
ToX = i + intervalStep,
Approx = approx,
MaxIterations = _maxIterations
};
try
{
output.Add(MathCore.GetFunctionRootBi(FunctionSelectorSelectedItem, arg));
divisionsSuccesses++;
}
catch (Exception e)
{
//if this function return true , it means that values on the interval's borders are of the same sign
if (CatchFunction(e, ref maxIterCounter, ref noRootsCounter, "Bi"))
{
continue;
}
}
try
{
output.Add(MathCore.GetFunctionRootFalsi(FunctionSelectorSelectedItem, arg));
divisionsSuccesses++;
}
catch (Exception e)
{
CatchFunction(e, ref maxIterCounter, ref noRootsCounter, "Falsi");
}
}
return(output);
});
foreach (var functionRoot in roots)
{
RootsCollection.Add(functionRoot);
}
if (maxIterCounter > 0 || noRootsCounter > 0)
{
MessageBox.Show(Locale["#DividedIntervalRaport"]
.Replace("&s1;", divisionsSuccesses.ToString())
.Replace("&s2;", maxIterCounter.ToString())
.Replace("&s3;", noRootsCounter.ToString()),
Locale["#DividedIntervalRaport1"], MessageBoxButton.OK, MessageBoxImage.Information);
}
//Update DataGrid's groups definitions.
RootsView = new ListCollectionView(RootsCollection);
//Once we are done we can render the chart.
UpdateChart();
}
