line graph bug?

[rajah]

Hi,

I’m currently trying out this JS but i have a stange problem.
I can’t seem to get a straight line.
The graph image provided is a different starting value for all graphs but all have a increment of 1 per x-axis value, yet the line goes up and down. (I included both axis in the img to provide a more clear picture)

the points for the orange line are :
0 – 35
1 – 36
2 – 37
3 – 38
4 – 39
5 – 40
6 – 41
7 – 42
8 – 43
9 – 44
10 – 45
11 – 46
12 – 47
Did i miss something ?

thnx in advance.

Gr. Rajah

[Sunil Urs]

Rajah,

I just had a look into it. These slight variations are due to fractional values that we get while calculating data-point’s pixel position. Doesn’t look like it can be avoided.

—
Sunil Urs