line plot/scatter plot:

INT (type)
LABEL
FLOAT (current time)
INT (number points)
INT (Color)
FLOAT  (x value)
FLOAT  (y value)
....
INT (number points)
INT (color)
FLOAT
FLOAT 
...

0  (terminating ints)
0  (terminating ints)

3D scatter plot:
INT (type)
LABEL
FLOAT (current time)
INT (number points)
FLOAT (x value)
FLOAT (y value)
FLOAT (z value)

3DIRREGULAR plot:

INT (type)
LABEL
FLOAT(current time)
INT (N dimension)
INT (M dimension)
FLOAT (x value)
FLOAT (y value)
FLOAT (z value)


3D surface plot:
INT (type)
LABEL
FLOAT(current time)
INT (N dimension)
INT (M dimension)
M FLOAT (x values)
N FLOAT (y values)
N*M FLOAT (z values) (column major)

2D Vector plot:
INT (type)
LABEL
FLOAT(current time)
INT (N dimension)
INT (M dimension)
M FLOAT (x values)
N FLOAT (y values)
M FLOAT (N w values, one column) 
M FLOAT (N z values, one column)
... (until all columns)

LABEL:

Size1
X-label
Size2
Y-label
Size3
Z-label
xscale
xmin
xmax
int Xauto
yscale
ymin
ymax
int Yauto
zscale
zmin
zmax
int Zauto

Structure:
INT npoints (-1 means no more structures in the file)
INT fill-flag (0 filled, 1 hollow)
INT lineColor
INT fillColor
N FLOAT (x values)
N FLOAT (y values)