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vlread_environ
NAME
vlread_environ - Read in a previously saved environment
file in NetCDF format.
SYNOPSIS
#include <parvox.h>
void vlread_environ(char* environ_filename);
DESCRIPTION
vlread_environ()
reads in an environment file environ_filename
in NetCDF format
and sets the rendering parameters accordingly. The environ_filename
could be either a full filename or a file prefix with a fixed extension
".env.nc". The environment file can be generated using the
ParVox GUI program, xmparvox,
by selecting the "save env" option under the "file" pull-down menu.
The environment file contains all the information necessary to start
a rendering session, including the volume classification information, such
as the data range, the color map, the opacity map, the slice definition
and the iso-surface definition, and the viewing parameters, such as the
transformation matrix, the scaling factors, the lighting and the material
setup. In addition, it also includes input decomposition information,
i.e., the block size or the number of blocks per processor, and the output
image size. A sample environment file looks like as follows: (output from
ncdump)
netcdf test3.env {
dimensions:
num_vars = 1 ;
cmaps_size = 768 ;
num_cmaps = 1 ;
opacs_size = 256 ;
num_opacs = 1 ;
map_dim = 2 ;
num_surfs = 8 ;
surface_fields = 6 ;
mat_fields = 4 ;
num_lights = 5 ;
light_fields = 4 ;
variables:
char colormap(num_cmaps,
cmaps_size) ;
float opacity(num_opacs,
opacs_size) ;
short map(num_vars,
map_dim) ;
float surface(num_vars,
num_surfs, surface_fields) ;
float material(num_vars,
mat_fields) ;
float light(num_lights,
light_fields) ;
char light_enabled(num_lights)
;
// global attributes:
:filter_type = 1 ;
:screen_width = 768 ;
:screen_height = 768 ;
:block_per_pe = 2 ;
:block_idim = 128 ;
:block_jdim = 128 ;
:block_kdim = 37 ;
:nodata_color = 1.f, 0.f, 0.f, 0.f ;
:translations = 18.18f, 9.0900002f ;
:scale_factors = 0.69999999f, 1.3f, 0.69999999f ;
:trans_matrix = 0.88649267f, -0.1382862f, -0.44159749f, 0.f,
-0.46216598f, -0.21694544f, -0.85984772f, 0.f,
0.023102611f, 0.96634072f, -0.2562322f, 0.f,
0.f, 0.f, 0.f, 1.f ;
:file_type = 0 ;
:outputfile = "parvox" ;
:num_iso_tbl = 1s ;
data:
colormap =
"\377\000\377\372\000\377\365\000\377\360\000\377\353\000\377\346\000\377
\341\000\377\334\000\377\327\000\377\322\000\377\315\000\377\310\000\377\303
\000\377\276\000\377\271\000\377\264\000\377\257\000\377\252\000\377\245\000
\377\240\000\377\233\000\377
"\000\377\005\000\377\000\000\377\000\005\377\000\n",
"\377\000\017\377\000\024\377\000\031\377\000\036\377\000#\377\000(\377
\000-\377\0002\377\0007\377\000<\377\000A\377\000F\377\000K\377\000P\377\000U
\377\000Z\377\000_\377\000d\377\000i\377\000n\377\000s\377\000x\377\000}\377
\000\202\377\000\207\377\00
"\000\377\005\000\377\000\005\377\000\n",
"\377\000\017\377\000\024\377\000\031\377\000\036\377\000#\377\000(\377
\000-\377\0002\377\0007\377\000<\377\000A\377\000F\377\000K\377\000P\377\000U
\377\000Z\377\000_\377\000d\377\000i\377\000n\377\000s\377\000x\377\000}\377
\000\202\377\000\207\377\00
"\000\377\005\000\377" ;
opacity =
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4 , 0.4
, 0.4 , 0.4 , 0.4 , 0.4 ,
0.4 , 0.4 , 0.4 , 0.4 ;
map =
0, 0 ;
surface =
18.18 , 1 , 1 , -1 , -1 , -1 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 , 0 , 0 ;
material =
1 , 0.3 , 0.8 , 0.5 , 0.35 ;
light =
1 , -1 , 1 , 1 ,
1 , 1 , -1 , 1 ,
0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 ,
0 , 0 , 0 , 0 ;
light_enabled = "\001\001" ;
}
SEE ALSO
vlinit_fb
, xmparvox
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