Fast line view with time scale : Hi,I customize example fast line...

Tue, 29 Oct 2019 03:46:59 +0000

Author: PhonG
Subject: 23917
Posted: 29 October 2019 at 3:46am

Hi,

I customize example fast line view to show my data with time scale, but in axes X just show 1 value - 00:00:43 in every time.

here my code:

void CFastLineView::CreateChart()
{
    CXTPChartContent* pContent = m_wndChartControl.GetContent();

    CXTPChartSeriesCollection* pCollection = pContent->GetSeries();
    pCollection->RemoveAll();

    if (pCollection)
    {
        for (int s = 0; s < SeriesCount[m_nSeriesCount]; s++)
        {
            CXTPChartSeries* pSeries = pCollection->Add(new CXTPChartSeries());
            if (pSeries)
            {
                pSeries->SetName(_T("Series"));

                CXTPChartFastLineSeriesStyle* pStyle = new CXTPChartFastLineSeriesStyle();
                pSeries->SetStyle(pStyle);

                pStyle->SetAntialiasing(m_bAntialiased);

                pSeries->SetArgumentScaleType(xtpChartScaleTime);
            }
        }
    }

    // Set the X and Y Axis title for the series.
    CXTPChartDiagram2D* pDiagram = DYNAMIC_DOWNCAST(CXTPChartDiagram2D,
                                                    pCollection->GetAt(0)->GetDiagram());
    ASSERT(pDiagram);

    pDiagram->SetAllowZoom(TRUE);

    pDiagram->GetAxisY()->GetRange()->SetMaxValue(1000.1);
    pDiagram->GetAxisY()->GetRange()->SetAutoRange(FALSE);
    pDiagram->GetAxisY()->SetAllowZoom(FALSE);

    pDiagram->GetAxisX()->GetLabel()->GetFormat()->SetDateTimeCategory(xtpChartDateTimeCustom);
    pDiagram->GetAxisX()->GetLabel()->GetFormat()->SetDateTimeFormat(_T("ss:mm:hh \n mm:dd:yyy"));
    pDiagram->GetAxisX()->GetRange()->SetAutoRange(FALSE);
    pDiagram->GetAxisX()->GetRange()->SetMinValue(COleDateTime(2019, 10, 29, 13, 25, 0));
    pDiagram->GetAxisX()->GetRange()->SetZoomLimit(10);

    pDiagram->GetAxisX()->SetInterlaced(FALSE);
    pDiagram->GetAxisY()->SetInterlaced(FALSE);

    pDiagram->GetPane()->GetFillStyle()->SetFillMode(xtpChartFillSolid);
}

void CFastLineView::AddPoint()
{
    CXTPChartContent* pContent = m_wndChartControl.GetContent();

    CXTPChartSeriesCollection* pCollection = pContent->GetSeries();

    int nCount = 0;
    int nTest = 1000;

    if (pCollection)
    {
        for (int s = 0; s < pCollection->GetCount(); s++)
        {
            CXTPChartSeries* pSeries = pCollection->GetAt(s);
            if (pSeries)
            {
                int nValue = 50;

                nCount = pSeries->GetPoints()->GetCount();

                if (nCount)
                    nValue = (int)pSeries->GetPoints()->GetAt(nCount - 1)->GetValue(0);

                nValue = rand()/30;

                if (nValue < 0)
                    nValue = 0;
                if (nValue > 1000)
                    nValue = 1000;

                pSeries->GetPoints()->Add(new CXTPChartSeriesPoint(m_dt, nValue));
                m_dt += COleDateTimeSpan(0, 0, 0, 5);
            }
        }
    }

    CXTPChartDiagram2D* pDiagram =
        DYNAMIC_DOWNCAST(CXTPChartDiagram2D, m_wndChartControl.GetContent()->GetPanels()->GetAt(0));
    ASSERT(pDiagram);

    CXTPChartAxisRange* pRange = pDiagram->GetAxisX()->GetRange();
    pRange->SetMaxValue(m_dt);

}

Codejock Developer Community : Fast line view with time scale

Fast line view with time scale : Hi,I customize example fast line...