Chart2/DataLabels
From Apache OpenOffice Wiki
This list is based primarily on the List of wished enhancements for Charts.
Contents
- 1 Add colors at the background and borderline
- 2 Customize automatic positions of datalabels
- 3 Free positioning of data labels
- 4 The data label number formatting is the same as the axis number formating
- 5 Rotate the labels
- 6 Rotate labels like a clock
- 7 Manually modify the text of a label
- 8 IMPORTANT: Outliers
Add colors at the background and borderline
- Of the labels to ease the readability.
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=64700
Customize automatic positions of datalabels
- In column charts the data labels are so far always plositioned on top of the data point rectangle.
- In Excel, it's possible to define different automatic positions:
- 564 = external border
- 514 = internal border
- 427 = centered
- 250 = internal based
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=63857
Free positioning of data labels
- If the automatism for data label positioning does not generate the desired result, it must be possible to adjust the position of each label manually.
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=48170
The data label number formatting is the same as the axis number formating
Rotate the labels
- In numerous cases, it could enhance the graph readability.
- covered in http://www.openoffice.org/issues/show_bug.cgi?id=24203
Rotate labels like a clock
Manually modify the text of a label
IMPORTANT: Outliers
Occasionally we have to represent data that contains outliers. This is currently not easy performed. Consider the following data series: 1, 2, 3, ..., 9, and 200.
Obviously 200 is far beyond the rest of the data. If we plot a bar-graph, the values 1-9 will be barely visible (and have almost the same magnitude), while the value 200 will strike out.
Workaround
To solve this issue, we need to be able to split the Y-Axis into 2 sections:
- first section could be from 0 to 20
- then it follows a short empty space (Y axis is discontinuous)
- and the 2nd Y-axis, which contains values around 200
e.g.
Y-axis
^
210 |
200 |
190 |
(a strike
through OR ...
the Y-axis)
20 |
10 |
0 |
This way we will display accurately both the outlier (200 value) as well as the rest of the data, and enhance the visualisation of the important data.
