------ DD OBJECTS COLLECTION ------
CORALL DISTRIBUTION FUNCTION
Distribution function is calculated
from the full spin
CORALL data set using grid with dimensions, defined in resource files.
Grid is transferred from polar coordinates into Cartesian frame defined in resources files.
While the distribution function is projected onto the plane, there is actual averaging of values
along projection line.
- CRLSLICE -The slice of distribution function along
the user defined plane inside user defined
boundaries, specified along perpendicular
axis. The file crlslicom.res controls this
object (see below ). You have to set up
Xrange and Yrange in request file.
The projection plane, color scale of plotting and other
features of the CRLSLICE object are controlled by resource file 'crlslicom.res'..
CRLSLICE cuts the slice bounded by planes parallel YZ plane of reference frame. Then
remained distribution function projected onto YZ plane. Value at each YZ point is the integral
of distribution function along X axis divided by volume of accumulation.So the value is the averaged
value of distribution function at YZ inside slice.
To define reference frame one should put into
crlslicom.res file components of spacecraft axis in the new frame of reference EXACTLY at the time of
sunpulse. The time of sunpulse for this spacecraft spin is printed at the top of object plot.
To get spacecraft axis in the frame {Vconvective,B}
you can use program GetVBKP. See the detail description in section
"Other executables in DD system".
Example
"request.list":
001
CRLSLICE 0.2 0.350 0.764 0.8 -1000.0 1000.0 -1000.0 1000.0
1996:111:04:19:00
000:00:01:00
"crlslicom.res":
0.900 0.371 -0.201 0.026 0.425 0.904 0.421 -0.825 0.376 # Plane
-300. 300. # V limits km/sec
117.8 # spen period, sec
1.e-31 1.e-23 # Distribution Function Limits
30 # Grid size
0 # 0 --- to show blended pixels
# 1 --- not to show
Output:
NOTE:
It is difficult to combine this type of object with
any object plotting data versus time because one could not set
in TimeInterval field the value larger than 110 sec. If the TimeInterval
is more than 2 minutes, DD_Request will overlap