public void ChangeYMemberSeriesViewWithFunctionAsDataSource()
{
var function = new Function();
var Y = new Variable <double>("Y");
var Z = new Variable <double>("Z");
var n = new Variable <double>("n");
function.Arguments.Add(Y);
function.Components.Add(Z);
function.Components.Add(n);
Y.SetValues(new[] { 0.0, 3.0, 5.0, 6.0, 7.0 });
Z.SetValues(new[] { 0.0, 10.0, 15.0, 21.0, 15.0 });
n.SetValues(new[] { 0.001, 0.001, 0.01, 0.01, 0.01 });
var chartView = new ChartView();
IChartSeries series = ChartSeriesFactory.CreateLineSeries();
series.XValuesDataMember = Y.DisplayName;
series.YValuesDataMember = Z.DisplayName;
series.DataSource = new FunctionBindingList(function)
{
SynchronizeInvoke = chartView
};
chartView.Chart.Series.Add(series);
WindowsFormsTestHelper.ShowModal(chartView);
}
public void RefreshShouldBeFastWhenFunctionDataSourceHasManyChanges()
{
IFunction function = new Function
{
Arguments = { new Variable <int>("x") },
Components = { new Variable <int>("f") }
};
var values = new int[1000];
for (var i = 0; i < values.Length; i++)
{
values[i] = i;
}
var chartView = new ChartView();
var lineSeries = ChartSeriesFactory.CreateLineSeries();
var functionBindingList = new FunctionBindingList(function)
{
SynchronizeInvoke = chartView
};
lineSeries.DataSource = functionBindingList;
lineSeries.XValuesDataMember = function.Arguments[0].DisplayName;
lineSeries.YValuesDataMember = function.Components[0].DisplayName;
chartView.Chart.Series.Add(lineSeries);
lineSeries.PointerVisible = false;
// now do the same when table view is shown
Action <Form> onShown = delegate
{
var stopwatch = new Stopwatch();
stopwatch.Reset();
stopwatch.Start();
SetFunctionValuesWrappedWithChartView(function, values);
stopwatch.Stop();
log.DebugFormat("Refreshing chart while inserting values into function took {0}ms", stopwatch.ElapsedMilliseconds);
stopwatch.ElapsedMilliseconds.Should("Insert of 1k values should take < 100ms").Be.LessThan(300);
};
WindowsFormsTestHelper.ShowModal(chartView, onShown);
}
public void RefreshShouldBeFastWhenFunctionDataSourceHasManyChanges()
{
var random = new Random();
IFunction function = new Function
{
Arguments = { new Variable <int>("x") },
Components = { new Variable <int>("f") }
};
int count = 1000;
var componentvalues = Enumerable.Range(1, count).Select(i => random.Next(100)).ToArray();
var argumentvalues = Enumerable.Range(1, count).ToArray();
var chartView = new ChartView();
var lineSeries = ChartSeriesFactory.CreateLineSeries();
var functionBindingList = new FunctionBindingList(function)
{
SynchronizeInvoke = chartView
};
lineSeries.DataSource = functionBindingList;
//don't update on every change...
lineSeries.UpdateASynchronously = true;
lineSeries.XValuesDataMember = function.Arguments[0].DisplayName;
lineSeries.YValuesDataMember = function.Components[0].DisplayName;
chartView.Chart.Series.Add(lineSeries);
lineSeries.PointerVisible = false;
// call one time to make sure that internal HACK TypeUtils.CallGeneric is done, otherwise timing varies a lot
function.SetValues(componentvalues, new VariableValueFilter <int>(function.Arguments[0], argumentvalues));
function.Arguments[0].Clear();
// now do the same when table view is shown
Action <Form> onShown = delegate
{
//the slowdown of chart is absolute minimal
TestHelper.AssertIsFasterThan(50, () =>
function.SetValues(componentvalues, new VariableValueFilter <int>(function.Arguments[0], argumentvalues)));
};
WindowsFormsTestHelper.ShowModal(chartView, onShown);
}