Recent changes to bugs

#17 Number axis labels disappearing

Giovanni — Fri, 11 Jul 2014 12:15:39 -0000

I have encountered the same problem placing the Chart inside a JPanel ruled with MigLayout. I have solved putting the Graph inside a sub-Jpanel with no layout manager

MyPnl = new JPanel(null);

MyPnl.add(MyLBChart2D);

and then setting directly bounds of chart

MyLBChart2D.setBounds(x, y, w, h);

bars dissapear when enabling axis labels

luis — Thu, 15 Oct 2009 23:59:57 -0000

LBChart2D lbChart2D = new LBChart2D();
Object2DProperties object2DProps = new Object2DProperties();
object2DProps.setObjectTitleText ("Total Present Value");
Chart2DProperties chart2DProps = new Chart2DProperties();
LegendProperties legendProps = new LegendProperties();
legendProps.setLegendExistence (true);

GraphChart2DProperties graph2DProps = new GraphChart2DProperties();
GraphProperties graphProps = new GraphProperties();
Dataset dataset = new Dataset (table3m.getRowCount(), 1, 1);
String[] labels=new String[table3m.getRowCount()];
for(int fill=0;fill<table3m.getRowCount();fill++)
{
dataset.set (fill, 0, 0, Integer.valueOf(table3m.getValueAt(fill, 3).toString()));
labels[fill]= String.valueOf(table3m.getValueAt(fill, 1));
}
lbChart2D.addDataset(dataset);
graph2DProps.setLabelsAxisExistence(false);
graph2DProps.setLabelsAxisLabelsTexts(labels);
legendProps.setLegendLabelsTexts(labels);
Dimension sizes=new Dimension(1046,588);
lbChart2D.setObject2DProperties (object2DProps);
lbChart2D.setChart2DProperties (chart2DProps);
lbChart2D.setLegendProperties(legendProps);
lbChart2D.setPreferredSize(sizes);
graph2DProps.setNumbersAxisTitleText("Present Dollars");
lbChart2D.setGraphChart2DProperties (graph2DProps);

lbChart2D.addGraphProperties (graphProps);
MultiColorsProperties multiColorsProps = new MultiColorsProperties();
lbChart2D.addMultiColorsProperties (multiColorsProps);
lbChart2D.pack();
lbChart2D.getImage();
jPanel4.add(lbChart2D);

when I enable the graph2DProps.setLabelsAxisExistence the labels appear at the bottom of the graph but there are no bars!...
when i disable graph2DProps.setLabelsAxisExistence the bars display correctly but i have no labels
i need both the labels and the bars to display correctly at the same time, but its not working.
thanks in advance

bug getPrecisionCeil in ChartArea class

seb — Tue, 17 Oct 2006 09:43:36 -0000

Hello,

I believe find a bug in getPrecisionCeil from ChartArea
class. If value is inferior to 1 then the method return
value*10.

For example : value = 0.044, precision = -4 return 0.44

Is it a bug ?

Thanks to answer my question.

Regards.
Sebastien Nicaisse.

Datapoints at wrong positions

Frosty — Wed, 14 Jun 2006 14:01:01 -0000

Hi!

I use your Chart2D-Package for a work at my university.
It's really good, small and easy to understand, so I
like it very much.

But today I found a problem...
I'm trying to draw a LBChart with 1 to 18 lines.
By clicking ComboBoxes the user can add or remove the
lines from the chart. Works fine, so far...

With 1 line, no problem, everythings ok.
But with 2 lines the problems begin.
The Points of the line start moving to incorrect positions.
For example:
All lines should start at LabelsAxisLabel "1" and end
at "2". (added correctly to the Dataset)
Line 1 is correct. But line 2, which also should start
at LabelsAxisLabel "1", starts at "0.9" an ends at "1.9".
Everytime I add a line, the gap grows.
You can imagine how it looks with 18 lines...

The behavior is not always the same. It depends on the
size of the complete Chart. So for example in
Window-Mode (800*600) of my program it's ok. But if you
go to Fullscreen and the Chart resizes itself, the
line-starts and -ends are wrong again.

Hope you understood what I mean... I added a JPG to
visualize, what I wrote.

So, you got an idea to solve the problem? Or a way to
work around it?

Thx in advance!
Marcel

Number axis labels disappearing

Ronny Standtke — Sat, 03 Dec 2005 10:36:13 -0000

I wanted to use Chart2D for a project as it looks
really good but I ran into a showstopper problem:
The number axis labels are randomly disappearing (see
screenshot). It seems to depend on the data values
and the chart size. Sometimes the labels are
disappearing when I enlarge the chart, sometimes when
I downsize it.
Is there a way to enforce painting the number axis
labels? I would really need it.

Labels get framed in Firefox, Mac OX

ANOVA — Wed, 24 Aug 2005 04:24:48 -0000

In Firefox on Mac OX all labels / titles are framed.
I've seen this in the demo applet.
Any ideas?

Thanks.

Line charts auto axis sizing incorrect for small values

Darrin Smith — Wed, 20 Oct 2004 14:46:58 -0000

I have an LBChart2D that is drawing lines with values
ranging from 0.00 to 0.05. The lines draw correctly, but
the Y axis is showing numbers from 0.0 to 0.5, instead of
0.05.

Even if you set the custom greatest value and turn it
on, it still shows up as 0.5 instead of 0.05.

Here is the code:

private Chart2D buildThicknessChart()
{
//Configure object properties
Object2DProperties object2DProps = new
Object2DProperties();
object2DProps.setObjectTitleText ("Layers
Thickness");

//Configure chart properties
Chart2DProperties chart2DProps = new
Chart2DProperties();
chart2DProps.setChartDataLabelsPrecision(-4);

//Configure legend properties
LegendProperties legendProps = new
LegendProperties();
String[] legendLabels = {"Value"};
legendProps.setLegendLabelsTexts (legendLabels);
legendProps.setLegendExistence(false);

//Configure graph chart properties
GraphChart2DProperties graphChart2DProps = new
GraphChart2DProperties();
graphChart2DProps.setLabelsAxisLabelsTexts
(labelsAxisLabels);
// graphChart2DProps.setLabelsAxisTitleText ("Data");
graphChart2DProps.setNumbersAxisTitleText
("Millimeters");

graphChart2DProps.setChartDatasetCustomizeGreatestVal
ue (true);

graphChart2DProps.setChartDatasetCustomGreatestValue
(0.050f);
graphChart2DProps.setLabelsAxisTicksAlignment
(graphChart2DProps.CENTERED);

//Configure graph properties
GraphProperties graphProps = new GraphProperties();
graphProps.setGraphBarsExistence (false);
graphProps.setGraphLinesExistence (true);
graphProps.setGraphAllowComponentAlignment (true);

//Configure dataset
thicknessDataset.set (0, 0, 0, 0.02f);
thicknessDataset.set (0, 1, 0, 0.03f);
thicknessDataset.set (0, 2, 0, 0.025f);
thicknessDataset.set (0, 3, 0, 0.03f);
thicknessDataset.set (0, 4, 0, 0.02f);
thicknessDataset.set (0, 5, 0, 0.03f);
thicknessDataset.set (0, 6, 0, 0.02f);
thicknessDataset.set (0, 7, 0, 0.01f);
thicknessDataset.set (0, 8, 0, 0.02f);
thicknessDataset.set (0, 9, 0, 0.04f);
thicknessDataset.set (0,10, 0, 0.02f);
thicknessDataset.set (0,11, 0, 0.035f);
thicknessDataset.set (0,12, 0, 0.03f);
thicknessDataset.set (0,13, 0, 0.025f);
thicknessDataset.set (0,14, 0, 0.02f);
thicknessDataset.set (0,15, 0, 0.03f);
thicknessDataset.set (0,16, 0, 0.01f);

//Configure graph component colors
MultiColorsProperties multiColorsProps = new
MultiColorsProperties();

//Configure warning regions for graph
WarningRegionProperties warningRegionProps1 = new
WarningRegionProperties();
warningRegionProps1.setHigh (0.025f);
warningRegionProps1.setLow
(WarningRegionProperties.LOW);

//Configure warning regions for graph
WarningRegionProperties warningRegionProps2 = new
WarningRegionProperties();
warningRegionProps2.setHigh (0.025f);
warningRegionProps2.setLow (0.024f);
warningRegionProps2.setComponentColor (new Color
(146, 105, 0));
warningRegionProps2.setBackgroundColor (new Color
(222, 209, 176));

//Configure chart
LBChart2D chart2D = new LBChart2D();
chart2D.setObject2DProperties (object2DProps);
chart2D.setChart2DProperties (chart2DProps);
chart2D.setLegendProperties (legendProps);
chart2D.setGraphChart2DProperties
(graphChart2DProps);
chart2D.addGraphProperties (graphProps);
chart2D.addDataset (thicknessDataset);
chart2D.addMultiColorsProperties (multiColorsProps);
chart2D.addWarningRegionProperties
(warningRegionProps1);
chart2D.addWarningRegionProperties
(warningRegionProps2);

//Optional validation: Prints debug messages if
invalid only.
if (!chart2D.validate (false))
{
chart2D.validate(true);
}

//<-- End Chart2D configuration -->

return chart2D;
}

setLayoutRatios doesn't have much effect

Alaric Snell — Tue, 18 Mar 2003 18:10:49 -0000

Hello!

I'm having a problem with legend text wrapping, as in
the attached PNG image. As you can see my label axis
text is quite long.

Now I've tried increasing the proportion of horizontal
space allocated to the legend with setLayoutRatios, but
it doesn't seem to do very much. I gather from the
documentation that it is up to me to make sure that the
sum of the graph and legend width components adds to
far enough less than 1 to allow space for the legend,
but even within that constraint, no matter what I do
it's still quite keen to wrap the legend.

I'm not calling setSize on the chart, so it could just
make the chart large enough to accomodate the legend,
surely?

Ideally I'd like my legend labels to word-wrap since
they are long and the legend to not not wrap individual
characters since there's no need and it's ugly, and
also to avoid any wrapping of the numbers axis labels
(which sometimes happens too) :-)

Any suggestions?

Thanks,

ABS

Pie Chart labeling problem

Nitin Singhal — Wed, 21 Aug 2002 16:42:51 -0000

In the PieChart2DFrameDemo class i replaced the
dataset with the following:

dataset.set (0, 0, 0, 4f);
dataset.set (1, 0, 0, 2f);
dataset.set (2, 0, 0, 0f);
dataset.set (3, 0, 0, 0f);
dataset.set (4, 0, 0, 0f);
dataset.set (5, 0, 0, 0f);

The pie chart that was generated is attached.
Is there any way to get the labels and lines more
organized. Maybe disable the labels for the sectors
that are zero or get the lines organized a bit better
because users find it very confusing when they see
intersecting labels lines.

Serge

Bar graph labeling/scaling problem

Nitin Singhal — Wed, 21 Aug 2002 16:14:11 -0000

In the LLChart2DFrameDemo of the Chart2D 1.9.6e and
the method:
private Chart2D getChart2DDemoD() which
corresponds to Bar with Cat Coloring

I set the dataset to the following data bellow.

dataset.set (0, 0, 0, 0f);
dataset.set (0, 1, 0, 0f);
dataset.set (0, 2, 0, 2f);
dataset.set (0, 3, 0, 4f);
dataset.set (0, 4, 0, 1f);
dataset.set (0, 5, 0, 0f);
dataset.set (0, 6, 0, 0f);
dataset.set (0, 7, 0, 0f);
dataset.set (0, 8, 0, 0f);

The attached screenshot of the bar graph shows the
problem of labels having "^" instead of numbers and
scale being off. For the entry (0,4,0,1f) the purple bar
goes beyong the label of 1.

Serge