zoom performance

[Scoob]

Is there a way to improve the zoom performance so that at least the crop box shows up faster?  Right now, it takes too much time (5+ seconds) for just the crop box to show up.  Is there something running when I click/drag that I can disable?  I've already turned off AllowDrag, AllowDrop, Highlighting, and ToolTips.

Thanks

[Frank]

I can not reproduce the behavior you are describing. I tried with a slow chart (100,000 points) and the zoom box shows right away.

 

[Scoob]

 

platform is Windows Vista Business 32-bit, on a single-core processor (Intel Pentium M 2.0Ghz Dothan, 2.00GB DDR2-533 ram)

from further testing, the zoom box appears right away on a dual-core system running windows XP Pro 32-bit

[Frank]

Please attach a sample that reproduces this behavior, in all machines I have tried this it runs very fast.

[Scoob]

here is the relevant component initialization:

this.chart.AllSeries.MarkerShape = ChartFX.WinForms.MarkerShape.None;

this.chart.AxisX.ForceZero = false;this.chart.AxisX.LabelsFormat.CustomFormat = "HH:mm:ss";

this.chart.AxisX.LabelsFormat.Format = ChartFX.WinForms.AxisFormat.DateTime;this.chart.AxisX.Staggered = true;

this.chart.AxisX.Title.Text = "";this.chart.AxisY.ForceZero = false;

this.chart.AxisY.LabelsFormat.Decimals = 2;this.chart.AxisY.LabelsFormat.Format = ChartFX.WinForms.AxisFormat.Number;

this.chart.AxisY.Title.Text = "";this.chart.Border = new ChartFX.WinForms.Adornments.SimpleBorder(ChartFX.WinForms.Adornments.SimpleBorderType.Color, System.Drawing.Color.FromArgb(((int)(((byte)(0)))), ((int)(((byte)(0)))), ((int)(((byte)(0))))));

this.chart.Dock = System.Windows.Forms.DockStyle.Fill;this.chart.Highlight.Enabled = false;

this.chart.LegendBox.Border = ChartFX.WinForms.DockBorder.None;this.chart.LegendBox.ContentLayout = ChartFX.WinForms.ContentLayout.Far;

this.chart.LegendBox.Dock = ChartFX.WinForms.DockArea.Top;this.chart.Location = new System.Drawing.Point(0, 0);

this.chart.Name = "chart";this.chart.Palette = "HighContrast.HighContrast";

this.chart.PlotAreaColor = System.Drawing.Color.Transparent;this.chart.Size = new System.Drawing.Size(1008, 668);

this.chart.TabIndex = 0;this.chart.ToolBar.Visible = true;

this.chart.ToolTips = false;

chart.ToolBar.RemoveAt(4, 2);

chart.ToolBar.RemoveAt(5, 10);

chart.ToolBar.RemoveAt(chart.ToolBar.Length - 2, 2);

chart.ToolBar.RemoveAt(chart.ToolBar.Length - 2, 1);

chart.AxisX.AutoScale = false;

chart.AxisY.AutoScale =

false;chart.AllowDrag = false;chart.AllowDrop = false;

chart.RandomData.Series = numItems; //numItems is usually a few, 1 or 2 usually

ChartFX.WinForms.

SeriesAttributes[] seriesAttribArray = new ChartFX.WinForms.SeriesAttributes[numItems];for (int k = 0; k < numItems; k++)

{

seriesAttribArray[k] = new ChartFX.WinForms.SeriesAttributes();

}

chart.Series.AddRange(seriesAttribArray);

chart.Data.Points = numPoints; //numPoints is less than or equal to 86400

//now put in points

chart.AxisX.Min = min; //min is a precalculated value

chart.AxisX.Max = max; //max is a precalculated value

chart.AxisY.ResetScale(); //autoscale the Y axis

Now I call the Show() method of the form from another form.

 

Maybe the slow performance is an isolated case with Vista?

[Frank]

The zoom runs very fast for me. I am running Vista. I tried in a few computers and with numbers of points varying from 90,000 to 900,0000.

Are you capturing any mouse events? If you are make sure it is not this code what's making it slow.