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Realtime Line Chart

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User (Legacy)

Posted
Posted 

Hi,

I've been using ChartFX (latest service pack with financial extension) for

some time now and recently have had to create a chart that displays 2

real-time lines... I've tried many ways to do this, and found that the best

way is to:

(First Setup The Chart)

################################################

Private Sub SetupLine()

  '

  Dim dblBid As Double

  Dim dblStep As Double

    '

    With ChartFX

        '

        .Gallery = LINES

        '

        .MaxValues = 10000

        .OpenDataEx COD_VALUES Or COD_REMOVE, 2, 30

        .CloseData COD_VALUES

        .TypeMask = ChartFX.TypeMask Or CT_EVENSPACING

        .RealTimeStyle = CRT_NOWAITARROW

        .TypeEx = ChartFX.TypeEx Or CTE_NOLEGINVALIDATE

        .Axis(AXIS_X).AutoScale = False

        .Axis(AXIS_X).Min = 0

        .Axis(AXIS_X).Max = 30

        .Axis(AXIS_X).STEP = 5

        .Axis(AXIS_X).MinorStep = 1

        .Series(0).MarkerShape = MK_CIRCLE

        .Series(0).MarkerSize = 1

        .Series(0).PointLabels = False

        .Series(1).MarkerShape = MK_CIRCLE

        .Series(1).MarkerSize = 1

        .Series(1).PointLabels = False

        '.RGBFont(CHART_VALUESFT) = RGB(255, 255, 255)

        '

        .Axis(AXIS_Y).Decimals = 4

        .Axis(AXIS_Y).Notify = False

        '

        dblBid = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Bid)

        .Axis(AXIS_Y).Min = dblBid - 0.001

        .Axis(AXIS_Y).Max = dblBid + 0.001

        dblStep = Round(((dblBid + 0.001) - (dblBid - 0.001)) / 10, 4)

        .Axis(AXIS_Y).STEP = dblStep

        .Axis(AXIS_Y).MinorStep = Round(dblStep / 2, 4)

        '

        .Axis(AXIS_X).SetScrollView 0, 30

        .Scrollable = True

        '

        lngOffset = 0

        .Commands(310).Enabled = True

        '

        .Axis(AXIS_X).TitleColor = &H8F5C00

        .RGBBk = &H8F5C00

        .Axis(AXIS_X).TextColor = vbWhite

        .Axis(AXIS_Y).TextColor = vbWhite

        .Axis(AXIS_X2).Title = ""

        '

    End With

    '

End Sub

(Now Call this everytime there is an update)

######################################################################

Public Function AddTick()

  '

  On Error GoTo Err_Init

  '

  Dim dblBid  As Double

  Dim dblAsk  As Double

  Dim strDate As String

    '

    dblBid = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Bid)

    dblAsk = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Ask)

    strDate = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.CurLastUpdate)

    '

    If dblBid > ChartFX.Axis(AXIS_Y).Max Then

        '

        ChartFX.Axis(AXIS_Y).Max = dblBid

        '

    ElseIf dblBid < ChartFX.Axis(AXIS_Y).Min Then

        '

        ChartFX.Axis(AXIS_Y).Min = dblBid

        '

    End If

    '

    If dblAsk > ChartFX.Axis(AXIS_Y).Max Then

        '

        ChartFX.Axis(AXIS_Y).Max = dblAsk

        '

    ElseIf dblAsk < ChartFX.Axis(AXIS_Y).Min Then

        '

        ChartFX.Axis(AXIS_Y).Min = dblAsk

        '

    End If

    '

    If lngOffset = 29 Or 30 Or 31 Then

        '

        ChartFX.Scroll CHART_ML(7, 0), 0

        '

    End If

    '

    Select Case m_TickOnlyChange

        '

        Case False

            '

            If lngOffset < 30 Then

                '

                ChartFX.OpenDataEx COD_VALUES, COD_UNCHANGE, COD_UNCHANGE

                    '

                    ChartFX.ValueEx(0, lngOffset) = dblBid

                    ChartFX.ValueEx(1, lngOffset) = dblAsk

                    '

                ChartFX.CloseData COD_VALUES Or COD_SMOOTH

                '

            Else

                '

                ChartFX.OpenDataEx COD_VALUES Or COD_ADDPOINTS, 2, 1

                    '

                    ChartFX.ValueEx(0, 0) = dblBid

                    ChartFX.ValueEx(1, 0) = dblAsk

                    '

                ChartFX.CloseData COD_VALUES Or COD_REALTIMESCROLL

                '

            End If

            '

            ChartFX.Axis(AXIS_X).Label(lngOffset) = strDate

            lngOffset = lngOffset + 1

            '

        Case True

            '

            If ChartFX.Value(dblBid) <> ChartFX.Series(0).Yvalue(lngOffset)

Then

                '

                If lngOffset < 30 Then

                    '

                    ChartFX.OpenDataEx COD_VALUES, COD_UNCHANGE,

COD_UNCHANGE

                        '

                        ChartFX.ValueEx(0, lngOffset) = dblBid

                        ChartFX.ValueEx(1, lngOffset) = dblAsk

                        '

                    ChartFX.CloseData COD_VALUES Or COD_SMOOTH

                    '

                Else

                    '

                    ChartFX.OpenDataEx COD_VALUES Or COD_ADDPOINTS, 2, 1

                        '

                        ChartFX.ValueEx(0, 0) = dblBid

                        ChartFX.ValueEx(1, 0) = dblAsk

                        '

                    ChartFX.CloseData COD_VALUES Or COD_REALTIMESCROLL

                    '

                End If

                '

                ChartFX.Axis(AXIS_X).Label(lngOffset) = strDate

                lngOffset = lngOffset + 1

                '

            End If

            '

    End Select

    '

    Exit Function

Err_Init:

    '

    HandleError CurrentModule, "AddTick", Err.Number, Err.Description

    '

End Function

You'll notice I set a maxpoints of 10000, and a view of 30 points... When

adding the first 30, I simply modify the existing points; however, when I

get beyond 30 I use addpoints with COD_REALTIMESCROLL to keep it moving. The

problem is my manager doesn't want to see that scroll bar on the bottom, he

wants to see just a chart and axis labels. I have tried many ways of doing

this and all have produced results, but when I use COD_SCROLLLEGEND, I get a

loop rather than the new values I assign.

For Now I am using a workaround: I'm just Resizing the chart so that the

scrollbar is out of the form... I would like to do this the proper way

though, and any insight would be greatly appreciated.

Chase Gale

Quantrex
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Software FX Newbie

Software FX

Posted
Posted 

There is a style called CS_SCROLLBARS that you can turn off to hide them.

You can do it as follows:

ChartFX1.Style = ChartFX1.Style and not CS_SCROLLBARS

This hides the scrollbar while keeping the scroll functionality (you can

still scroll the chart through code).

--

FP

Software FX Support

"Chase Gale" <cgale@fxsol.com> wrote in message

news:hPYpQqUoCHA.3108@webserver1.softwarefx.com...

> Hi,

>

> I've been using ChartFX (latest service pack with financial extension) for

> some time now and recently have had to create a chart that displays 2

> real-time lines... I've tried many ways to do this, and found that the

best

> way is to:

>

> (First Setup The Chart)

> ################################################

> Private Sub SetupLine()

>   '

>   Dim dblBid As Double

>   Dim dblStep As Double

>     '

>     With ChartFX

>         '

>         .Gallery = LINES

>         '

>         .MaxValues = 10000

>         .OpenDataEx COD_VALUES Or COD_REMOVE, 2, 30

>         .CloseData COD_VALUES

>         .TypeMask = ChartFX.TypeMask Or CT_EVENSPACING

>         .RealTimeStyle = CRT_NOWAITARROW

>         .TypeEx = ChartFX.TypeEx Or CTE_NOLEGINVALIDATE

>         .Axis(AXIS_X).AutoScale = False

>         .Axis(AXIS_X).Min = 0

>         .Axis(AXIS_X).Max = 30

>         .Axis(AXIS_X).STEP = 5

>         .Axis(AXIS_X).MinorStep = 1

>         .Series(0).MarkerShape = MK_CIRCLE

>         .Series(0).MarkerSize = 1

>         .Series(0).PointLabels = False

>         .Series(1).MarkerShape = MK_CIRCLE

>         .Series(1).MarkerSize = 1

>         .Series(1).PointLabels = False

>         '.RGBFont(CHART_VALUESFT) = RGB(255, 255, 255)

>         '

>         .Axis(AXIS_Y).Decimals = 4

>         .Axis(AXIS_Y).Notify = False

>         '

>         dblBid = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Bid)

>         .Axis(AXIS_Y).Min = dblBid - 0.001

>         .Axis(AXIS_Y).Max = dblBid + 0.001

>         dblStep = Round(((dblBid + 0.001) - (dblBid - 0.001)) / 10, 4)

>         .Axis(AXIS_Y).STEP = dblStep

>         .Axis(AXIS_Y).MinorStep = Round(dblStep / 2, 4)

>         '

>         .Axis(AXIS_X).SetScrollView 0, 30

>         .Scrollable = True

>         '

>         lngOffset = 0

>         .Commands(310).Enabled = True

>         '

>         .Axis(AXIS_X).TitleColor = &H8F5C00

>         .RGBBk = &H8F5C00

>         .Axis(AXIS_X).TextColor = vbWhite

>         .Axis(AXIS_Y).TextColor = vbWhite

>         .Axis(AXIS_X2).Title = ""

>         '

>     End With

>     '

> End Sub

>

> (Now Call this everytime there is an update)

> ######################################################################

> Public Function AddTick()

>   '

>   On Error GoTo Err_Init

>   '

>   Dim dblBid  As Double

>   Dim dblAsk  As Double

>   Dim strDate As String

>     '

>     dblBid = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Bid)

>     dblAsk = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.Ask)

>     strDate = RateGrid(CurrencyPairs.GBP_USD, RateGridMap.CurLastUpdate)

>     '

>     If dblBid > ChartFX.Axis(AXIS_Y).Max Then

>         '

>         ChartFX.Axis(AXIS_Y).Max = dblBid

>         '

>     ElseIf dblBid < ChartFX.Axis(AXIS_Y).Min Then

>         '

>         ChartFX.Axis(AXIS_Y).Min = dblBid

>         '

>     End If

>     '

>     If dblAsk > ChartFX.Axis(AXIS_Y).Max Then

>         '

>         ChartFX.Axis(AXIS_Y).Max = dblAsk

>         '

>     ElseIf dblAsk < ChartFX.Axis(AXIS_Y).Min Then

>         '

>         ChartFX.Axis(AXIS_Y).Min = dblAsk

>         '

>     End If

>     '

>     If lngOffset = 29 Or 30 Or 31 Then

>         '

>         ChartFX.Scroll CHART_ML(7, 0), 0

>         '

>     End If

>     '

>     Select Case m_TickOnlyChange

>         '

>         Case False

>             '

>             If lngOffset < 30 Then

>                 '

>                 ChartFX.OpenDataEx COD_VALUES, COD_UNCHANGE, COD_UNCHANGE

>                     '

>                     ChartFX.ValueEx(0, lngOffset) = dblBid

>                     ChartFX.ValueEx(1, lngOffset) = dblAsk

>                     '

>                 ChartFX.CloseData COD_VALUES Or COD_SMOOTH

>                 '

>             Else

>                 '

>                 ChartFX.OpenDataEx COD_VALUES Or COD_ADDPOINTS, 2, 1

>                     '

>                     ChartFX.ValueEx(0, 0) = dblBid

>                     ChartFX.ValueEx(1, 0) = dblAsk

>                     '

>                 ChartFX.CloseData COD_VALUES Or COD_REALTIMESCROLL

>                 '

>             End If

>             '

>             ChartFX.Axis(AXIS_X).Label(lngOffset) = strDate

>             lngOffset = lngOffset + 1

>             '

>         Case True

>             '

>             If ChartFX.Value(dblBid) <>

ChartFX.Series(0).Yvalue(lngOffset)

> Then

>                 '

>                 If lngOffset < 30 Then

>                     '

>                     ChartFX.OpenDataEx COD_VALUES, COD_UNCHANGE,

> COD_UNCHANGE

>                         '

>                         ChartFX.ValueEx(0, lngOffset) = dblBid

>                         ChartFX.ValueEx(1, lngOffset) = dblAsk

>                         '

>                     ChartFX.CloseData COD_VALUES Or COD_SMOOTH

>                     '

>                 Else

>                     '

>                     ChartFX.OpenDataEx COD_VALUES Or COD_ADDPOINTS, 2, 1

>                         '

>                         ChartFX.ValueEx(0, 0) = dblBid

>                         ChartFX.ValueEx(1, 0) = dblAsk

>                         '

>                     ChartFX.CloseData COD_VALUES Or COD_REALTIMESCROLL

>                     '

>                 End If

>                 '

>                 ChartFX.Axis(AXIS_X).Label(lngOffset) = strDate

>                 lngOffset = lngOffset + 1

>                 '

>             End If

>             '

>     End Select

>     '

>     Exit Function

>

> Err_Init:

>     '

>     HandleError CurrentModule, "AddTick", Err.Number, Err.Description

>     '

> End Function

>

>

>

> You'll notice I set a maxpoints of 10000, and a view of 30 points... When

> adding the first 30, I simply modify the existing points; however, when I

> get beyond 30 I use addpoints with COD_REALTIMESCROLL to keep it moving.

The

> problem is my manager doesn't want to see that scroll bar on the bottom,

he

> wants to see just a chart and axis labels. I have tried many ways of doing

> this and all have produced results, but when I use COD_SCROLLLEGEND, I get

a

> loop rather than the new values I assign.

>

> For Now I am using a workaround: I'm just Resizing the chart so that the

> scrollbar is out of the form... I would like to do this the proper way

> though, and any insight would be greatly appreciated.

>

> Chase Gale

> Quantrex

>

>
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