Originally posted by kaustubh ram:
hi sreedhar
u r problem is to convert degrees in coordinates.
if u r having four values say 20,30,40,50
their sum is 140.each ark will have a angle of
degree=(number/140)*360
suppose centre of pi circle is 100,100 and refrance line is
g.DrawLine(100,100,150,100);
then other line having angle with this line will be
g.DrawLine(100,100,100+50*(Math.sin(double (deg*3.1415/180)),100+50*(Math.sin(doubl(deg*pi/180)),
100+50*(Math.cos(double (deg*pi/180)))
here 50 is radius of pi chart
and value of pi=3.1415926535897932384636433832792
Hello,
How do you conver this applet so that it retrieves sales data as parameters and display the data on a pie chart.
The format of the parameters is the following:
<param name=categories value="cat1..... catn ">
<param name=cat1 value="amount1 ">
<param name=catn value="amountn ">
The amount for each category is represented as an integer. For example, the following are sample sales data for a software superstore.
<param name=categories value="education utility entertainment reference"
<param name=education value=10000>
<param name=utility value=12000>
<param name=entertainment value=30000>
<param name=reference value=9000>
I should add methods to my pie chart
applet so that it meets the Canonical Form of Public Classes.
Thanks,
Chris.