How to fit all the lines into a chart

[Raavi]

I have a fixed tool window as a client and on which a teechart is docked. Now I try to place some lines whose lengths are not know and upon doing it the part of the line is beyond the size of teechart.

How can I fit all the lines into a teechart? In future, the fixed tool window may be re-sizable.

Thanks.

[Christopher]

Raavi,

I have a fixed tool window as a client and on which a teechart is docked. Now I try to place some lines whose lengths are not know and upon doing it the part of the line is beyond the size of teechart.

How can I fit all the lines into a teechart? In future, the fixed tool window may be re-sizable.

Would you be so kind as to create a Short, Self Contained, Correct (Compilable), Example with which I can see your issue here?

[Raavi]

Sorry. I have to pick up the right words or an example to demonstrate.

But, I got 'false' for 'Chart.Zoom.Zoomed'. which tells me that not all Chart point fit into Chart.

[Raavi]

On clicking Test button one may notice the part of the rectangle goes out of the chart.

I rather like to implement to fit all the lines in the chart. Some sort of autozoom.

[Christopher]

On clicking Test button one may notice the part of the rectangle goes out of the chart.

I rather like to implement to fit all the lines in the chart. Some sort of autozoom.

If I change the code to:

Code: Select all

        private void AddSeriesToChart()
        {
            m_Sum = 10.0;

then the rectangle doesn't move ... is this the issue or am I misunderstanding it?

[Raavi]

1) What should I have to do thereby, 'm_Chart.Zoom.Zoomed' returns 'true'

2) If I set m_Sum += 10.0; then part of the lines go out of the Chart. This should not happen rather it should 'zoom out' to fit all lines in a given Chart size and the same for m_Sum -= 10 and in this case it should 'zoom in'.

* My problem is I cannot change the Chart size so I have to play with Zoom in and Zoom out by keeping Aspect ratio fixed either horizontally or vertically.

[Christopher]

1) What should I have to do thereby, 'm_Chart.Zoom.Zoomed' returns 'true'

2) If I set m_Sum += 10.0; then part of the lines go out of the Chart. This should not happen rather it should 'zoom out' to fit all lines in a given Chart size and the same for m_Sum -= 10 and in this case it should 'zoom in'.

* My problem is I cannot change the Chart size so I have to play with Zoom in and Zoom out by keeping Aspect ratio fixed either horizontally or vertically.

I see. Maybe the problem is that the internal Series statistics aren't being updated as you set the ValueList.Value array directly. You could try:

m_Line.XValues.Count = 6;
m_Line.XValues.Value = m_RectangleX;
m_Line.XValues.Modified = true;

m_Line.YValues.Count = 6;
m_Line.YValues.Value = m_RectangleY;
m_Line.YValues.Modified = true;

[Raavi]

I think, I can demonstrate what I mean about the lines not fitting into the chart with the attached solution.

* I cannot change the size of the Chart.
* I do not know what the dimensions for the line are.

In that case, however the line is defined it should fit into Chart.

[Christopher]

I think, I can demonstrate what I mean about the lines not fitting into the chart with the attached solution.

* I cannot change the size of the Chart.
* I do not know what the dimensions for the line are.

In that case, however the line is defined it should fit into Chart.

Try:

Code: Select all

            m_Chart.Axes.Bottom.Automatic = true;
            m_Chart.Axes.Bottom.MinimumOffset = 10;
            m_Chart.Axes.Bottom.MaximumOffset = 10;
            //m_Chart.Axes.Bottom.Visible = false;
            m_Chart.Axes.Bottom.Ticks.Length = 0;
            m_Chart.Axes.Bottom.Labels.Visible = false;
            m_Chart.Axes.Bottom.AxisPen.Visible = false;

            m_Chart.Axes.Left.Automatic = true;
            m_Chart.Axes.Left.MinimumOffset = 10;
            m_Chart.Axes.Left.MaximumOffset = 10;
            //m_Chart.Axes.Left.Visible = false;
            m_Chart.Axes.Left.Ticks.Length = 0;
            m_Chart.Axes.Left.Labels.Visible = false;
            m_Chart.Axes.Left.AxisPen.Visible = false;

[Raavi]

I beg your pardon, I do not see any change with the suggestion.

[Christopher]

I beg your pardon, I do not see any change with the suggestion.

Yes, I'm sorry, those changes seem to be irrelevant. The relevant change is commenting out this line:

Code: Select all

//m_Chart.BeforeDrawSeries += (sender, d) => m_Chart.Chart.Axes.Bottom.AdjustMaxMin();

There's a little video here in which you can see the effect of the change.

[Raavi]

Works but it breaks on re-sizing the window.

Nice video demonstration. Thanks.

[Raavi]

Though it is not a strict criterion but things may change in the future. Like, fixed size Chart to re-sizable.

[Christopher]

Works but it breaks on re-sizing the window.

I'm sorry, I thought that when you said "I cannot change the size of the Chart." you meant that the size of the Chart couldn't be changed.

So the size of the Chart *can* be changed, but only when the client resizes, is that correct?

[Christopher]

Though it is not a strict criterion but things may change in the future. Like, fixed size Chart to re-sizable.

If I comment out the line:

Code: Select all

//m_Line.IsoHorizAxes = true;

I can resize the chart and the series resizes correctly.

I am a little confused as to exactly what your requirements are, I'm sorry.