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  [MFC]Redrawing, the scale does not change.
Posted by Kaiden on Jul-17-2013 22:22
| Reply | Monitor
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Hello Peter,

Thx for the previous answer, I haven't had the time to check it yet but as soon as I
check,
You will be the first to know. I really appreciate it.

This one is something to do with redrawing.
As you can see in the pic,
First time works fine like always.
but after selecting different values, if the value is not in the range(scale) of the first
selected values, then it doesn't show on the plot area. Obviously it's somewhere way
above or below I guess.

I think there should be something that resets everything but donno where it is.
Could you help me out?

thank you so much for your help and also for this powerful tool!!
Never regret buying it!! :)

Best Regards,
Kaiden.

///// here are the source codes.


void initChartViewer(CChartViewer *viewer)
{
int arrFoundSize = arrFindVec.GetSize();

dTitle = new double*[m_pDoc->iLineCount-7];
arrTempData.SetSize(m_pDoc->iLineCount-7);

m_labels = new char*[arrFoundSize];
CString strTmpLabels;

for(int iDataIdx = 7; iDataIdx != m_pDoc->iLineCount; iDataIdx++)
{
dTitle[iDataIdx-7] = new double[arrFoundSize]; // init data fields.
}

for(int i=0; i<arrFindVec.GetSize(); i++)
{
if(m_MaxiDiffCount == 1)
{
strTmpLabels = _T("");

for(int j=0; j<m_MaxiDiffCount; j++)
{
strTmpLabels +=m_strX_Axis[i].GetAt(j);
if( j != m_MaxiDiffCount - 1 )
{
strTmpLabels += _T(" ");
}
}
}
else if(m_MaxiDiffCount > 1)
{
strTmpLabels = _T("");
for(int j=0; j<m_arrSameWordsDiffCountTitle[0].GetSize(); j++)
{
strTmpLabels += m_strX_Axis[i].GetAt(j);
if( j != m_arrSameWordsDiffCountTitle[0].GetSize() - 1 )
{
strTmpLabels += _T(" ");
}
}
}

int strLen = strTmpLabels.GetLength();
m_labels[i] = new char[strLen+1];
WideCharToMultiByte(CP_ACP, 0,strTmpLabels, -1, m_labels[i], strLen+1,
NULL, NULL);

for(int iDataIdx = 7; iDataIdx != m_pDoc->iLineCount; iDataIdx++)
{
strTmp = m_pDoc->vec2dStr[iDataIdx][arrFindVec.GetAt(i)];
dTitle[iDataIdx-7][i] = _wtof(strTmp);
}
}

    // Set the full x range to be the duration of the data
    viewer->setFullRange("x", 0, 0);
//viewer->setFullRange("x", m_timeStamps[0], m_timeStamps[m_timeStamps.len -
1]);

    // Initialize the view port to show the latest 20% of the time range
    m_chartView.setViewPortWidth(1);
    m_chartView.setViewPortLeft(1 - m_chartView.getViewPortWidth());

    // Set the maximum zoom to 10 points
    m_chartView.setZoomInWidthLimit(10.0 / arrFindVec.GetSize());
//m_chartView.setZoomInWidthLimit(10.0 / m_timeStamps.len);

    // Initially set the mouse to drag to scroll mode.
    m_PointerPB.SetCheck(1);
    m_chartView.setMouseUsage(Chart::MouseUsageScroll);
}


void OnInitialUpdate()
{
CFormView::OnInitialUpdate();
GetParentFrame()->RecalcLayout();
ResizeParentToFit();

// search button
CButton* pBtnSearch = (CButton*)GetDlgItem(IDC_BUTTON1);
CButton* pBtnDraw = (CButton*)GetDlgItem(IDC_BUTTON_DRAW);
CEdit* pEdit = (CEdit*)GetDlgItem(IDC_EDIT1);
CButton* pBtnEdit = (CButton*)GetDlgItem(IDC_BUTTON_TITLE_EDIT);
CEdit* pStaticTitle = (CEdit*)GetDlgItem(IDC_STATIC_TITLE);

CButton* pBtnPointer = (CButton*)GetDlgItem(IDC_PointerPB);
CButton* pBtnZoomIn = (CButton*)GetDlgItem(IDC_ZoomInPB);
CButton* pBtnZoomOut = (CButton*)GetDlgItem(IDC_ZoomOutPB);


pBtnSearch->EnableWindow(FALSE);
pBtnDraw->EnableWindow(FALSE);
pEdit->EnableWindow(FALSE);
pBtnEdit->EnableWindow(FALSE);
pStaticTitle->EnableWindow(FALSE);

pBtnPointer->EnableWindow(FALSE);
pBtnZoomIn->EnableWindow(FALSE);
pBtnZoomOut->EnableWindow(FALSE);

// loaded files info
m_ListRead.InsertColumn(0, _T("Name"), LVCFMT_LEFT, 185);
m_ListRead.InsertColumn(1, _T("Modified"), LVCFMT_LEFT, 100);
m_ListRead.InsertColumn(2, _T("Size"), LVCFMT_LEFT, 50);
m_ListRead.ModifyStyle(LVS_TYPEMASK, LVS_REPORT);


// draw blank chart.
m_pChart = new XYChart(800, 600, 0xF0F0F0, 0xffffff, 1);
m_pChart->setRoundedFrame();

    m_pChart->setPlotArea(50, 75, 700, 400, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

    m_pChart->addLegend(30, 20, false, "arialbd.ttf", 9)-
>setBackground(Chart::Transparent);

m_chartView.setChart(m_pChart);

delete m_pChart;
//-----------------------------------------------------------------------------------
-----------
// StaticText Test
StaticTextButton.SubclassDlgItem(IDC_STATIC_TITLE, this);
//-----------------------------------------------------------------------------------
-----------

UpdateData(TRUE);


ListBoxColoredBy = (CListBox*)GetDlgItem(IDC_LIST_COLORED_BY); // get
ListBoxColoredBy
ListBoxColoredBy->ShowWindow(SW_HIDE);

m_ListRead.SetExtendedStyle( LVS_EX_CHECKBOXES ); // add CheckBox in
ListControl

//-----------------------------------------------------------------------------------
---------------------------
static const int m_iColorTable[100] =
{ 0xFF0000, 0x9ACD32, 0x8B008B, 0x800000, 0x5F9EA0, 0xA52A2A, 0xA0522D,
0x8B4513, 0xCD5C5C, 0xBC8F8F,
0xF08080, 0xFA8072, 0xE9967A, 0xFF7F50, 0xFF6347, 0xF4A460, 0xFFA07A,
0xCD853F, 0xD2691E, 0xFF4500,
0xFFA500, 0xFF8C00, 0xD2B48C, 0xFFDAB9, 0xFFE4C4, 0xFFE4B5,
0xFFDEAD, 0xF5DEB3, 0xDEB887, 0xB8860B,
0xDAA520, 0xFFD700, 0xFFFF00, 0xFAFAD2, 0xEEE8AA, 0xF0E68C,
0xBDB76B, 0x7CFC00, 0xADFF2F, 0x7FFF00,
0x00FF00, 0x32CD32, 0xDC143C, 0x808000, 0x6B8E23, 0x556B2F, 0x228B22,
0x006400, 0x008000, 0x2E8B57,
0x3CB371, 0x8FBC8F, 0x90EE90, 0x98FB98, 0x00FF7F, 0x00FA9A, 0x008080,
0x008B8B, 0x20B2AA, 0x66CDAA,
0x8B0000, 0x4682B4, 0x7FFFD4, 0xB0E0E6, 0xAFEEEE, 0xADD8E6, 0xB0C4DE,
0x87CEEB, 0x87CEFA, 0x48D1CC,
0x40E0D0, 0x00CED1, 0x00FFFF, 0x00FFFF, 0x00BFFF, 0x1E90FF, 0x6495ED,
0x4169E1, 0x0000FF, 0x0000CD,
0x000080, 0x00008B, 0x191970, 0x483D8B, 0x6A5ACD, 0x7B68EE, 0x9370DB,
0x9932CC, 0x9400D3, 0x8A2BE2,
0xBA55D3, 0xDDA0DD, 0xE6E6FA, 0xD8BFD8, 0xDA70D6, 0xEE82EE, 0x4B0082,
0xB22222, 0x800080, 0xC71585
};

for(int k=0; k<100; k++)
{
m_aryHexColor.Add( m_iColorTable[k] );
}
//-----------------------------------------------------------------------------------
---------------------------

}
//
// The ViewPortChanged event handler. This event occurs if the user scrolls or zooms in
or
// out the chart by dragging or clicking on the chart. It can also be triggered by calling
// CChartViewer.updateViewPort.
//
void OnViewPortChanged()
{
//MessageBox(_T("on view port changed"));
    // In addition to updating the chart, we may also need to update other controls that
    // changes based on the view port.
    updateControls(&m_chartView);

    // Update the chart if necessary
    if (m_chartView.needUpdateChart())
        drawChart(&m_chartView);

    // We need to update the track line too. If the mouse is moving on the chart (eg. if
    // the user drags the mouse on the chart to scroll it), the track line will be updated
    // in the MouseMovePlotArea event. Otherwise, we need to update the track line here.

/*
if (!m_chartView.isInMouseMoveEvent())
{
       // trackLineLegend((XYChart *)m_chartView.getChart(),
m_chartView.getPlotAreaMouseX());
        m_chartView.updateDisplay();
    }*/
}

//
// Draw track cursor when mouse is moving over plotarea
//
void OnMouseMovePlotArea()
{

//MessageBox(_T("On mouse move plot area"));
    // Get the focus to ensure being able to receive mouse wheel events
if(!nFlag == 0)
{
//m_nMouseMove = 1;
m_chartView.SetFocus();

//trackLineLegend((XYChart *)m_chartView.getChart(),
m_chartView.getPlotAreaMouseX());
// m_chartView.updateDisplay();
}
}

void updateControls(CChartViewer *viewer)
{
// we need to update the scroll bar to reflect the view port position and
// width of the view port.

//MessageBox(_T("update control"));
m_HScrollBar.EnableWindow(viewer->getViewPortWidth() < 1);
if (viewer->getViewPortWidth() < 1)
{
SCROLLINFO info;
info.cbSize = sizeof(SCROLLINFO);
info.fMask = SIF_ALL;
info.nMin = 0;
info.nMax = 0x1fffffff;
info.nPage = (int)ceil(viewer->getViewPortWidth() * (info.nMax - info.nMin));
info.nPos = (int)(0.5 + viewer->getViewPortLeft() * (info.nMax - info.nMin))
+ info.nMin;
m_HScrollBar.SetScrollInfo(&info);
}
}
BOOL OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
// TODO: Add your message handler code here and/or call default

//return CFormView::OnMouseWheel(nFlags, zDelta, pt);
// Process the mouse wheel only if the mouse is over the plot area
if (!m_chartView.isMouseOnPlotArea())
return FALSE;

    // We zoom in or out by 10% depending on the mouse wheel direction.
double newVpWidth = m_chartView.getViewPortWidth() * (zDelta > 0 ? 0.8 : 1 /
0.8);
double newVpHeight = m_chartView.getViewPortHeight() * (zDelta > 0 ? 0.8 : 1 /
0.8);

    // We do not zoom beyond the zoom width or height limits.
    newVpWidth = max(m_chartView.getZoomInWidthLimit(), min(newVpWidth,
        m_chartView.getZoomOutWidthLimit()));
    newVpHeight = max(m_chartView.getZoomInHeightLimit(), min(newVpWidth,
        m_chartView.getZoomOutHeightLimit()));

if ((newVpWidth != m_chartView.getViewPortWidth()) ||
(newVpHeight != m_chartView.getViewPortHeight()))
{
// Set the view port position and size so that the point under the mouse
remains under
// the mouse after zooming.

double deltaX = (m_chartView.getPlotAreaMouseX() -
m_chartView.getPlotAreaLeft()) *
(m_chartView.getViewPortWidth() - newVpWidth) /
m_chartView.getPlotAreaWidth();
m_chartView.setViewPortLeft(m_chartView.getViewPortLeft() + deltaX);
m_chartView.setViewPortWidth(newVpWidth);

double deltaY = (m_chartView.getPlotAreaMouseY() -
m_chartView.getPlotAreaTop()) *
(m_chartView.getViewPortHeight() - newVpHeight) /
m_chartView.getPlotAreaHeight();
m_chartView.setViewPortTop(m_chartView.getViewPortTop() + deltaY);
m_chartView.setViewPortHeight(newVpHeight);

    m_chartView.updateViewPort(true, false);
}

return TRUE;
}

drawChart(){
// TODO: Add your control notification handler code here
int arrFoundSize = arrFindVec.GetSize();

dTitle = new double*[m_pDoc->iTotalRowCount];
arrTempData.SetSize(m_pDoc->iTotalRowCount); // 데이터 값을 받을 임의의 배
열의 크기 설정.

m_labels = new char*[arrFoundSize];
CString strTmpLabels;

for(int iDataIdx = 0; iDataIdx != m_pDoc->iTotalRowCount; iDataIdx++)
{
dTitle[iDataIdx] = new double[arrFoundSize]; // init data fields.
}

for(int i=0; i<arrFindVec.GetSize(); i++)
{
if(m_MaxiDiffCount == 1)
{
strTmpLabels = _T("");
// 타이틀 문자열 중 다른 개수 만큼 배열에 저장.
for(int j=0; j<m_MaxiDiffCount; j++)
{
strTmpLabels +=m_strX_Axis[i].GetAt(j);
if( j != m_MaxiDiffCount - 1 )
{
strTmpLabels += _T(" ");
}
}
}
else if(m_MaxiDiffCount > 1)
{
strTmpLabels = _T("");
// 타이틀 문자열 중 다른 개수 만큼 배열에 저장.
for(int j=0; j<m_arrSameWordsDiffCountTitle[0].GetSize(); j++)
{
strTmpLabels += m_strX_Axis[i].GetAt(j);
if( j != m_arrSameWordsDiffCountTitle[0].GetSize() - 1 )
{
strTmpLabels += _T(" ");
}
}
}

int strLen = strTmpLabels.GetLength();
m_labels[i] = new char[strLen+1];
WideCharToMultiByte(CP_ACP, 0,strTmpLabels, -1, m_labels[i],
strLen+1, NULL, NULL);

for(int iDataIdx = 0; iDataIdx != m_pDoc->iTotalRowCount; iDataIdx++)
{
strTmp = m_pDoc->vec2dStr[ ( m_pDoc-
>m_fileDataSeperate.GetAt(0) ) + iDataIdx ][arrFindVec.GetAt(i)];
dTitle[iDataIdx][i] = _wtof(strTmp);
}
}
//------------------------------------------------------------------------
--------------------------------------

m_pChart = new XYChart(800, 600, 0xf0f0f0, 0xaaaaaa);

//m_pChart->getHeight() - 35, 0xf0f6ff, 0xa0c0ff), -1, Chart::Transparent, 0xffffff,
0xffffff);
m_pChart->setPlotArea(55, 90, m_pChart->getWidth() - 90, m_pChart-
>getHeight() - 160, 0xf0f0f0, -1, Chart::Transparent, 0x7F7F7F, 0x7F7F7F);

//**
m_pChart->addLegend(30, 20, false, "arialbd.ttf", 9)-
>setBackground(Chart::Transparent);

// As the data can lie outside the plotarea in a zoomed chart, we need
enable clipping.
m_pChart->setClipping();

// Add a title to the chart using 18 pts Times New Roman Bold Italic font
m_pChart->addTitle(m_graphTitle, "timesbi.ttf", 18);

//**
m_pChart->xAxis()->setLabelStyle("arialbd.ttf", 7, 0x008000)-
>setFontAngle(45);
m_pChart->xAxis()->setLabels(StringArray(m_labels, arrFoundSize));
//**

// Set legend icon style to use line style icon, sized for 8pt font
m_pChart->getLegend()->setLineStyleKey();
m_pChart->getLegend()->setFontSize(8);


// Set the axis stem to transparent
m_pChart->xAxis()->setColors(Chart::Transparent);
m_pChart->yAxis()->setColors(Chart::Transparent);

//**
// Display 1 out of 3 labels on the x-axis.
m_pChart->xAxis()->setLabelStep(1);
//**


// Add a line layer for the lines, using a line width of 2 pixels
vector< LineLayer* > vecLineLayer;
for(int iLayerIdx = 0; iLayerIdx != m_pDoc->iTotalRowCount; iLayerIdx++)
{
LineLayer* layer = m_pChart->addLineLayer();
layer->setLineWidth(2);
layer->setFastLineMode();
vecLineLayer.push_back(layer);
}

//------------------------------------------------------------------------
for(int i=0; i<m_pDoc->iTotalRowCount; i++)
{
//vecLineLayer[i]->addDataSet(DoubleArray(dTitle[i], arrFoundSize),
m_aryTotalCountColor.GetAt(i), "DATA");
vecLineLayer[i]->addDataSet(DoubleArray(dTitle[i], arrFoundSize),
m_aryTotalCountColor.GetAt(i));//, "DATA");
}


m_chartView.syncLinearAxisWithViewPort("x", m_pChart->xAxis());
m_chartView.syncLinearAxisWithViewPort("y", m_pChart->yAxis());
m_chartView.setScrollDirection(Chart::DirectionHorizontalVertical);
m_chartView.setZoomDirection(Chart::DirectionHorizontalVertical);


m_chartView.setChart(m_pChart);

for(int i=0; i<m_pDoc->iTotalRowCount; i++)
{
delete[] dTitle[i];
}
delete[] dTitle;


for(int i=0; i<arrFoundSize; i++)
{
delete[] m_labels[i];
}
delete[] m_labels;
}

onbuttondrawclicked()
{

}
_SCALE.jpg
_SCALE.jpg
239.17 Kb

  Re: [MFC]Redrawing, the scale does not change.
Posted by Peter Kwan on Jul-18-2013 03:40
| Reply | Monitor
Hi Kaiden,

After zooming in or out, if you use new data and would like to reset the state, you may use:

//reset the view port to 100% (maximum zoom out)
m_chartView.setViewPortLeft(0);
m_chartView.setViewPortWidth(1);
m_chartView.setViewPortTop(0);
m_chartView.setViewPortHeight(1);

//reset the axis scale so the axis will be auto-scaled again
m_chartView.setFullRange("x", 0, 0);
m_chartView.setFullRange("y", 0, 0);

Hope this can help.

Regards
Peter Kwan

  Re: [MFC]Redrawing, the scale does not change.
Posted by Kaiden on Jul-18-2013 21:13
| Reply | Monitor
Thanks Peter,

This one worked fine!! :)
I'll try to solve other two.

-Kaiden-