Bugs item #1808098, was opened at 2007-10-05 16:08
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: jerk (fantaz)
Assigned to: Nobody/Anonymous (nobody)
Summary: [wxPlotCtrl] wxPlotCtrl won't zoom wxPlotDataCruve
Initial Comment:
I'm terribly sorry for double posting, this is the duplicate of 1807993 feature
request, that is the feature request should be deleted.
If one wants to draw points like
# x y
0 60
1 60
from file (tested it on wxplotctrl_sample.exe as well)
the curve is drawn, but not shown, i.e. plotctrl doesn't know how to set
plot boundaries on y axis (they remain default).
The same thing happens if one wants to draw a horizontal line, i.e.
# x y
1000 800
1000 900
The wxPlotDataCurve's fn CalculateBoundingRect() sets m_boundingRect with zero
height/width, which is fine, but then wxPlotCtrl fails to correctly display the
data.
One solution would be to "inflate" the bounding rect of the data curve, but
then the wxPlotCtrl's CalculateBoundingRect wouldn't "zoom all" correctly more
than one curve.
The second solution could be to modify wxPlotCtrl's CalculateBoundingRect so
that the bounding rect could be artificially inflated by the arbitrary value,
10 for example. That is:
in wxplotctrl.cpp in
void wxPlotCtrl::CalcBoundingPlotRect()
...
Starting from Line 2442
if (rect.m_width == 0.0)
{
zeroWidth = true;
- rect.m_x = m_defaultPlotRect.m_x;
- rect.m_width = m_defaultPlotRect.m_width;
+ rect.m_x = rect.m_x-10;
+ rect.m_width = rect.m_x+20;
}
if (rect.m_height == 0.0)
{
zeroHeight = true;
- rect.m_y = m_defaultPlotRect.m_y;
- rect.m_height = m_defaultPlotRect.m_height;
+ rect.m_y = rect.m_y-10;
+ rect.m_height = rect.m_y+20;
}
Any thoughts?
best regards,
fantaz
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