[wxCode-users] [ wxcode-Bugs-3391663 ] wxFreechart: report about a bug of categoryaxis and patch

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Bugs item #3391663, was opened at 2011-08-15 01:17
Message generated for change (Tracker Item Submitted) made by nobody
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Category: any
Group: last released version
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: wxFreechart: report about a bug of categoryaxis and patch

Initial Comment:
I'm using freechart to drawing ganttchart and  found a bug of categoryaxis when there are only one category(one task in ganttchart),freechart just can't show any chart.

bellow is the patch:


//--------------------------------------
categoryaxis.cpp
//--------------------------------------


void CategoryAxis::GetDataBounds(double &minValue, double &maxValue)
{
    minValue = 0;
    if (m_categoryCount > 1) {
        maxValue = m_categoryCount - 1;
    }
    else if ( m_categoryCount  == 1 )
    {
        maxValue = 1;
    }
    else {
        maxValue = 0;
    }
}



this patch runs OK,but  is there more elegant fixing?

BTW:I'm using freechart to draw "resource occupy" ganttchart,but I found that it' really not so elegant as you have to drawing in"task" mode.

"resource occupy"  chart means there many resource(such as machines),and occupy by task(such as client/order) along time line.

Is there a elegant way to drawing such chart?

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=462816&aid=3391663&group_id=51305