Peter Kwan wrote:

Hi ram,

The suggested method to use a certain visible unit (unit that is used in labels) is to
directly use that unit in your data. For example, if you want to use MB as the unit,
simply
use MB as the unit for your data.

For MB as unit, some people define 1MB = 1000000 bytes, while some defines 1MB =
1048576 bytes. Suppose you want to use 1MB = 1048576 bytes, you can use, and your
data in your database table is using bytes, there are two methods:

(a) Change your SQL so that it returns MB instead of bytes. For example, instead of
"SELECT myData, ....", use "SELECT myData/1000000, .....".

(b) If your data do not come from a database and cannot be manipulated with SQL, you
can use code to change the data. For example:

for (int i = 0; i < myData.Length; ++i) myData[i] /= 1000000;

You can always insert any text in the axis labels or axis title so that the user knows the
numbers are in MB. For example:

c.yAxis().setTitle("My Data (in MB)");

or

c.yAxis().setLabelFormat("{value}MB");

If you must pass the data in bytes units to ChartDirector, and want ChartDirector to
automatically determine the axis scale, and then want to express the labels in special
units, it may work well if the units are decimal units. It is because the labels generated
by ChartDirector assumes decimal units. For example, ChartDirector may create labels
like
100, 200, 300, which are nice numbers in decimal units, and not something like 64, 128,
192.....

For your case, to ask ChartDirector to format the labels in MB units, where 1MB =
1000000 bytes, the code is:

c.yAxis().setLabelFormat("{={value}/1000000}MB");

Hope this can help.

Regards
Peter Kwan