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source: palm/trunk/SOURCE/data_output_dvrp.f90 @ 1096

Last change on this file since 1096 was 1037, checked in by raasch, 12 years ago
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1	!--------------------------------------------------------------------------------!
2	! This file is part of PALM.
3	!
4	! PALM is free software: you can redistribute it and/or modify it under the terms
5	! of the GNU General Public License as published by the Free Software Foundation,
6	! either version 3 of the License, or (at your option) any later version.
7	!
8	! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
9	! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
10	! A PARTICULAR PURPOSE. See the GNU General Public License for more details.
11	!
12	! You should have received a copy of the GNU General Public License along with
13	! PALM. If not, see <http://www.gnu.org/licenses/>.
14	!
15	! Copyright 1997-2012 Leibniz University Hannover
16	!--------------------------------------------------------------------------------!
17	!
18	! Current revisions:
19	! -----------------
20	!
21	!
22	! Former revisions:
23	! -----------------
24	! $Id: data_output_dvrp.f90 1037 2012-10-22 14:10:22Z raasch $
25	!
26	! 1036 2012-10-22 13:43:42Z raasch
27	! code put under GPL (PALM 3.9)
28	!
29	! 828 2012-02-21 12:00:36Z raasch
30	! particle feature color renamed class
31	!
32	! 287 2009-04-09 08:59:36Z raasch
33	! Clipping of dvr-output implemented, using a default colourtable for
34	! particles,
35	! output of messages replaced by message handling routine.
36	!
37	! 210 2008-11-06 08:54:02Z raasch
38	! DVRP arguments changed to single precision, mode pathlines added
39	!
40	! 130 2007-11-13 14:08:40Z letzel
41	! allow two instead of one digit to specify isosurface and slicer variables
42	! for unknown variables (CASE DEFAULT) call new subroutine
43	! user_data_output_dvrp
44	!
45	! 82 2007-04-16 15:40:52Z raasch
46	! Preprocessor strings for different linux clusters changed to "lc",
47	! routine local_flush is used for buffer flushing
48	!
49	! 75 2007-03-22 09:54:05Z raasch
50	! Particles-package is now part of the default code,
51	! moisture renamed humidity
52	!
53	! RCS Log replace by Id keyword, revision history cleaned up
54	!
55	! Revision 1.13 2006/02/23 10:25:12 raasch
56	! Former routine plot_dvrp renamed data_output_dvrp,
57	! Only a fraction of the particles may have a tail,
58	! pl.. replaced by do.., %size renamed %dvrp_psize
59	!
60	! Revision 1.1 2000/04/27 06:27:17 raasch
61	! Initial revision
62	!
63	!
64	! Description:
65	! ------------
66	! Plot of isosurface, particles and slicers with dvrp-software
67	!------------------------------------------------------------------------------!
68
69	MODULE dvrp_color
70
71	USE dvrp_variables
72
73	IMPLICIT NONE
74
75	CONTAINS
76
77	SUBROUTINE color_dvrp( value, color )
78
79	REAL, INTENT(IN) :: value
80	REAL, INTENT(OUT) :: color(4)
81
82	REAL :: scale
83
84	scale = ( value - slicer_range_limits_dvrp(1,islice_dvrp) ) / &
85	( slicer_range_limits_dvrp(2,islice_dvrp) - &
86	slicer_range_limits_dvrp(1,islice_dvrp) )
87
88	scale = MODULO( 180.0 + 180.0 * scale, 360.0 )
89
90	color = (/ scale, 0.5, 1.0, 0.0 /)
91
92	END SUBROUTINE color_dvrp
93
94	END MODULE dvrp_color
95
96
97	RECURSIVE SUBROUTINE data_output_dvrp
98
99	#if defined( __dvrp_graphics )
100
101	USE arrays_3d
102	USE cloud_parameters
103	USE constants
104	USE control_parameters
105	USE cpulog
106	USE DVRP
107	USE dvrp_color
108	USE dvrp_variables
109	USE grid_variables
110	USE indices
111	USE interfaces
112	USE particle_attributes
113	USE pegrid
114
115	IMPLICIT NONE
116
117	CHARACTER (LEN=2) :: section_chr
118	CHARACTER (LEN=6) :: output_variable
119	INTEGER :: c_mode, c_size_x, c_size_y, c_size_z, dvrp_nop, dvrp_not, &
120	gradient_normals, i, ip, j, jp, k, l, m, n, n_isosurface, &
121	n_slicer, nn, section_mode, vn
122	INTEGER, DIMENSION(:), ALLOCATABLE :: p_c, p_t
123
124	LOGICAL, DIMENSION(:), ALLOCATABLE :: dvrp_mask
125
126	REAL(4) :: slicer_position, tmp_alpha, tmp_alpha_w, tmp_b, tmp_c_alpha, &
127	tmp_g, tmp_norm, tmp_pos, tmp_r, tmp_t, tmp_th
128	REAL(4), DIMENSION(:), ALLOCATABLE :: psize, p_x, p_y, p_z
129	REAL(4), DIMENSION(:,:,:), ALLOCATABLE :: local_pf
130	REAL(4), DIMENSION(:,:,:,:), ALLOCATABLE :: local_pfi
131
132
133	CALL cpu_log( log_point(27), 'data_output_dvrp', 'start' )
134
135	!
136	!-- Loop over all output modes choosed
137	m = 1
138	n_isosurface = 0 ! isosurface counter (for threshold values and color)
139	n_slicer = 0 ! slice plane counter (for range of values)
140	DO WHILE ( mode_dvrp(m) /= ' ' )
141	!
142	!-- Update of the steering variables
143	IF ( .NOT. lock_steering_update ) THEN
144	!
145	!-- Set lock to avoid recursive calls of DVRP_STEERING_UPDATE
146	lock_steering_update = .TRUE.
147	! CALL DVRP_STEERING_UPDATE( m-1, data_output_dvrp )
148	lock_steering_update = .FALSE.
149	ENDIF
150
151	!
152	!-- Determine the variable which shall be plotted (in case of slicers or
153	!-- isosurfaces)
154	IF ( mode_dvrp(m)(1:10) == 'isosurface' ) THEN
155	READ ( mode_dvrp(m), '(10X,I2)' ) vn
156	output_variable = do3d(0,vn)
157	n_isosurface = n_isosurface + 1
158	ELSEIF ( mode_dvrp(m)(1:6) == 'slicer' ) THEN
159	READ ( mode_dvrp(m), '(6X,I2)' ) vn
160	output_variable = do2d(0,vn)
161	l = MAX( 2, LEN_TRIM( do2d(0,vn) ) )
162	section_chr = do2d(0,vn)(l-1:l)
163	SELECT CASE ( section_chr )
164	CASE ( 'xy' )
165	section_mode = 2
166	slicer_position = zu(MIN( slicer_position_dvrp(m), nz_do3d ))
167	CASE ( 'xz' )
168	section_mode = 1
169	slicer_position = slicer_position_dvrp(m) * dy
170	CASE ( 'yz' )
171	section_mode = 0
172	slicer_position = slicer_position_dvrp(m) * dx
173	END SELECT
174	ENDIF
175
176	!
177	!-- Select the plot mode (in case of isosurface or slicer only if user has
178	!-- defined a variable which shall be plotted; otherwise do nothing)
179	IF ( mode_dvrp(m)(1:9) == 'particles' .AND. particle_advection .AND. &
180	simulated_time >= particle_advection_start ) THEN
181	!
182	!-- DVRP-Calls for plotting particles:
183	CALL cpu_log( log_point_s(28), 'dvrp_particles', 'start' )
184
185	!
186	!-- Definition of characteristics of particle material
187	! tmp_r = 0.1; tmp_g = 0.7; tmp_b = 0.1; tmp_t = 0.0
188	tmp_r = 0.0; tmp_g = 0.0; tmp_b = 0.0; tmp_t = 0.0
189	CALL DVRP_MATERIAL_RGB( m-1, 1, tmp_r, tmp_g, tmp_b, tmp_t )
190
191	!
192	!-- If clipping is active and if this subdomain is clipped, find out the
193	!-- number of particles and tails to be plotted; otherwise, all
194	!-- particles/tails are plotted. dvrp_mask is used to mark the partikles.
195	ALLOCATE( dvrp_mask(number_of_particles) )
196
197	IF ( dvrp_total_overlap ) THEN
198	dvrp_mask = .TRUE.
199	dvrp_nop = number_of_particles
200	dvrp_not = number_of_tails
201	ELSE
202	dvrp_mask = .FALSE.
203	dvrp_nop = 0
204	dvrp_not = 0
205	IF ( dvrp_overlap ) THEN
206	IF ( .NOT. use_particle_tails ) THEN
207	DO n = 1, number_of_particles
208	ip = particles(n)%x / dx
209	jp = particles(n)%y / dy
210	IF ( ip >= nxl_dvrp .AND. ip <= nxr_dvrp .AND. &
211	jp >= nys_dvrp .AND. jp <= nyn_dvrp ) THEN
212	dvrp_nop = dvrp_nop + 1
213	dvrp_mask(n) = .TRUE.
214	ENDIF
215	ENDDO
216	ELSE
217	k = 0
218	DO n = 1, number_of_particles
219	IF ( particles(n)%tail_id /= 0 ) THEN
220	k = k + 1
221	ip = particles(n)%x / dx
222	jp = particles(n)%y / dy
223	IF ( ip >= nxl_dvrp .AND. ip <= nxr_dvrp .AND. &
224	jp >= nys_dvrp .AND. jp <= nyn_dvrp ) THEN
225	dvrp_not = dvrp_not + 1
226	dvrp_mask(n) = .TRUE.
227	ENDIF
228	ENDIF
229	ENDDO
230	ENDIF
231	ENDIF
232	ENDIF
233
234	!
235	!-- Move particle coordinates to one-dimensional arrays
236	IF ( .NOT. use_particle_tails ) THEN
237	!
238	!-- All particles are output
239	ALLOCATE( psize(dvrp_nop), p_t(dvrp_nop), p_c(dvrp_nop), &
240	p_x(dvrp_nop), p_y(dvrp_nop), p_z(dvrp_nop) )
241	psize = 0.0; p_t = 0; p_c = 0.0; p_x = 0.0; p_y = 0.0
242	p_z = 0.0
243	k = 0
244	DO n = 1, number_of_particles
245	IF ( dvrp_mask(n) ) THEN
246	k = k + 1
247	psize(k) = particles(n)%dvrp_psize
248	p_x(k) = particles(n)%x * superelevation_x
249	p_y(k) = particles(n)%y * superelevation_y
250	p_z(k) = particles(n)%z * superelevation
251	p_c(k) = particles(n)%class
252	ENDIF
253	ENDDO
254	ELSE
255	!
256	!-- Particles have a tail
257	ALLOCATE( psize(dvrp_not), p_t(dvrp_not), &
258	p_c(dvrp_not*maximum_number_of_tailpoints), &
259	p_x(dvrp_not*maximum_number_of_tailpoints), &
260	p_y(dvrp_not*maximum_number_of_tailpoints), &
261	p_z(dvrp_not*maximum_number_of_tailpoints) )
262	psize = 0.0; p_t = 0; p_c = 0.0; p_x = 0.0; p_y = 0.0
263	p_z = 0.0;
264	i = 0
265	k = 0
266
267	DO n = 1, number_of_particles
268	nn = particles(n)%tail_id
269	IF ( nn /= 0 .AND. dvrp_mask(n) ) THEN
270	k = k + 1
271	DO j = 1, particles(n)%tailpoints
272	i = i + 1
273	p_x(i) = particle_tail_coordinates(j,1,nn) * &
274	superelevation_x
275	p_y(i) = particle_tail_coordinates(j,2,nn) * &
276	superelevation_y
277	p_z(i) = particle_tail_coordinates(j,3,nn) * &
278	superelevation
279	p_c(i) = particle_tail_coordinates(j,4,nn)
280	ENDDO
281	psize(k) = particles(n)%dvrp_psize
282	p_t(k) = particles(n)%tailpoints - 1
283	ENDIF
284	ENDDO
285	ENDIF
286
287	!
288	!-- Compute and plot particles in dvr-format
289	IF ( uniform_particles .AND. .NOT. use_particle_tails ) THEN
290	!
291	!-- All particles have the same color. Use simple routine to set
292	!-- the particle attributes (produces less output data)
293	CALL DVRP_PARTICLES( m-1, p_x, p_y, p_z, psize )
294	ELSE
295	!
296	!-- Set color definitions
297	CALL user_dvrp_coltab( 'particles', 'none' )
298
299	CALL DVRP_COLORTABLE_HLS( m-1, 0, interval_values_dvrp_prt, &
300	interval_h_dvrp_prt, &
301	interval_l_dvrp_prt, &
302	interval_s_dvrp_prt, &
303	interval_a_dvrp_prt )
304
305	IF ( .NOT. use_particle_tails ) THEN
306	CALL DVRP_PARTICLES( m-1, dvrp_nop, p_x, p_y, p_z, 3, psize, &
307	p_c, p_t )
308	ELSE
309	CALL DVRP_PARTICLES( m-1, dvrp_not, p_x, p_y, p_z, 15, psize, &
310	p_c, p_t )
311	ENDIF
312	ENDIF
313
314	CALL DVRP_VISUALIZE( m-1, 3, dvrp_filecount )
315
316	DEALLOCATE( dvrp_mask, psize, p_c, p_t, p_x, p_y, p_z )
317
318	CALL cpu_log( log_point_s(28), 'dvrp_particles', 'stop' )
319
320
321	ELSEIF ( ( mode_dvrp(m)(1:10) == 'isosurface' .OR. &
322	mode_dvrp(m)(1:6) == 'slicer' ) &
323	.AND. output_variable /= ' ' ) THEN
324
325	!
326	!-- Create an intermediate array, properly dimensioned for plot-output
327	ALLOCATE( local_pf(nxl_dvrp:nxr_dvrp+1,nys_dvrp:nyn_dvrp+1, &
328	nzb:nz_do3d) )
329
330	!
331	!-- Move original array to intermediate array
332	IF ( dvrp_overlap ) THEN
333
334	SELECT CASE ( output_variable )
335
336	CASE ( 'u', 'u_xy', 'u_xz', 'u_yz' )
337	DO i = nxl_dvrp, nxr_dvrp+1
338	DO j = nys_dvrp, nyn_dvrp+1
339	DO k = nzb, nz_do3d
340	local_pf(i,j,k) = u(k,j,i)
341	ENDDO
342	ENDDO
343	ENDDO
344	!
345	!-- Replace mirrored values at lower surface by real surface
346	!-- values
347	IF ( output_variable == 'u_xz' .OR. &
348	output_variable == 'u_yz' ) THEN
349	IF ( ibc_uv_b == 0 ) local_pf(:,:,nzb) = 0.0
350	ENDIF
351
352
353	CASE ( 'v', 'v_xy', 'v_xz', 'v_yz' )
354	DO i = nxl_dvrp, nxr_dvrp+1
355	DO j = nys_dvrp, nyn_dvrp+1
356	DO k = nzb, nz_do3d
357	local_pf(i,j,k) = v(k,j,i)
358	ENDDO
359	ENDDO
360	ENDDO
361	!
362	!-- Replace mirrored values at lower surface by real surface
363	!-- values
364	IF ( output_variable == 'v_xz' .OR. &
365	output_variable == 'v_yz' ) THEN
366	IF ( ibc_uv_b == 0 ) local_pf(:,:,nzb) = 0.0
367	ENDIF
368
369	CASE ( 'w', 'w_xy', 'w_xz', 'w_yz' )
370	DO i = nxl_dvrp, nxr_dvrp+1
371	DO j = nys_dvrp, nyn_dvrp+1
372	DO k = nzb, nz_do3d
373	local_pf(i,j,k) = w(k,j,i)
374	ENDDO
375	ENDDO
376	ENDDO
377	! Averaging for Langmuir circulation
378	! DO k = nzb, nz_do3d
379	! DO j = nys_dvrp+1, nyn_dvrp
380	! DO i = nxl_dvrp, nxr_dvrp+1
381	! local_pf(i,j,k) = 0.25 * local_pf(i,j-1,k) + &
382	! 0.50 * local_pf(i,j,k) + &
383	! 0.25 * local_pf(i,j+1,k)
384	! ENDDO
385	! ENDDO
386	! ENDDO
387
388	CASE ( 'p', 'p_xy', 'p_xz', 'p_yz' )
389	DO i = nxl_dvrp, nxr_dvrp+1
390	DO j = nys_dvrp, nyn_dvrp+1
391	DO k = nzb, nz_do3d
392	local_pf(i,j,k) = p(k,j,i)
393	ENDDO
394	ENDDO
395	ENDDO
396
397	CASE ( 'pt', 'pt_xy', 'pt_xz', 'pt_yz' )
398	IF ( .NOT. cloud_physics ) THEN
399	DO i = nxl_dvrp, nxr_dvrp+1
400	DO j = nys_dvrp, nyn_dvrp+1
401	DO k = nzb, nz_do3d
402	local_pf(i,j,k) = pt(k,j,i)
403	ENDDO
404	ENDDO
405	ENDDO
406	ELSE
407	DO i = nxl_dvrp, nxr_dvrp+1
408	DO j = nys_dvrp, nyn_dvrp+1
409	DO k = nzb, nz_do3d
410	local_pf(i,j,k) = pt(k,j,i) + l_d_cp * &
411	pt_d_t(k) * ql(k,j,i)
412	ENDDO
413	ENDDO
414	ENDDO
415	ENDIF
416
417	CASE ( 'q', 'q_xy', 'q_xz', 'q_yz' )
418	IF ( humidity .OR. passive_scalar ) THEN
419	DO i = nxl_dvrp, nxr_dvrp+1
420	DO j = nys_dvrp, nyn_dvrp+1
421	DO k = nzb, nz_do3d
422	local_pf(i,j,k) = q(k,j,i)
423	ENDDO
424	ENDDO
425	ENDDO
426	ELSE
427	message_string = 'if humidity/passive_scalar = ' // &
428	'FALSE output of ' // TRIM( output_variable ) // &
429	'is not provided'
430	CALL message( 'data_output_dvrp', 'PA0183',&
431	0, 0, 0, 6, 0 )
432	ENDIF
433
434	CASE ( 'ql', 'ql_xy', 'ql_xz', 'ql_yz' )
435	IF ( cloud_physics .OR. cloud_droplets ) THEN
436	DO i = nxl_dvrp, nxr_dvrp+1
437	DO j = nys_dvrp, nyn_dvrp+1
438	DO k = nzb, nz_do3d
439	local_pf(i,j,k) = ql(k,j,i)
440	ENDDO
441	ENDDO
442	ENDDO
443	ELSE
444	message_string = 'if cloud_physics = FALSE ' // &
445	'output of ' // TRIM( output_variable) // &
446	'is not provided'
447	CALL message( 'data_output_dvrp', 'PA0184',&
448	0, 0, 0, 6, 0 )
449	ENDIF
450
451	CASE ( 'u*_xy' )
452	DO i = nxl_dvrp, nxr_dvrp+1
453	DO j = nys_dvrp, nyn_dvrp+1
454	local_pf(i,j,nzb+1) = us(j,i)
455	ENDDO
456	ENDDO
457	slicer_position = zu(nzb+1)
458
459	CASE ( 't*_xy' )
460	DO i = nxl_dvrp, nxr_dvrp+1
461	DO j = nys_dvrp, nyn_dvrp+1
462	local_pf(i,j,nzb+1) = ts(j,i)
463	ENDDO
464	ENDDO
465	slicer_position = zu(nzb+1)
466
467
468	CASE DEFAULT
469	!
470	!-- The DEFAULT case is reached either if output_variable
471	!-- contains unsupported variable or if the user has coded a
472	!-- special case in the user interface. There, the subroutine
473	!-- user_data_output_dvrp checks which of these two conditions
474	!-- applies.
475	CALL user_data_output_dvrp( output_variable, local_pf )
476
477
478	END SELECT
479
480	ELSE
481	!
482	!-- No overlap of clipping domain with the current subdomain
483	DO i = nxl_dvrp, nxr_dvrp+1
484	DO j = nys_dvrp, nyn_dvrp+1
485	DO k = nzb, nz_do3d
486	local_pf(i,j,k) = 0.0
487	ENDDO
488	ENDDO
489	ENDDO
490
491	ENDIF
492
493	IF ( mode_dvrp(m)(1:10) == 'isosurface' ) THEN
494
495	!
496	!-- DVRP-Calls for plotting isosurfaces:
497	CALL cpu_log( log_point_s(26), 'dvrp_isosurface', 'start' )
498
499	!
500	!-- Definition of isosurface color
501	tmp_r = isosurface_color(1,n_isosurface)
502	tmp_g = isosurface_color(2,n_isosurface)
503	tmp_b = isosurface_color(3,n_isosurface)
504	tmp_t = 0.0
505	CALL DVRP_MATERIAL_RGB( m-1, 1, tmp_r, tmp_g, tmp_b, tmp_t )
506
507	!
508	!-- Compute and plot isosurface in dvr-format
509	CALL DVRP_DATA( m-1, local_pf, 1, nx_dvrp, ny_dvrp, nz_dvrp, &
510	cyclic_dvrp, cyclic_dvrp, cyclic_dvrp )
511
512	c_size_x = vc_size_x; c_size_y = vc_size_y; c_size_z = vc_size_z
513	CALL DVRP_CLUSTER_SIZE( m-1, c_size_x, c_size_y, c_size_z )
514
515	c_mode = vc_mode
516	CALL DVRP_CLUSTERING_MODE( m-1, c_mode )
517
518	gradient_normals = vc_gradient_normals
519	CALL DVRP_GRADIENTNORMALS( m-1, gradient_normals )
520
521	!
522	!-- A seperate procedure for setting vc_alpha will be in the next
523	!-- version of libDVRP
524	tmp_c_alpha = vc_alpha
525	CALL DVRP_THRESHOLD( -(m-1)-1, tmp_c_alpha )
526
527	IF ( dvrp_overlap ) THEN
528	tmp_th = threshold(n_isosurface)
529	ELSE
530	tmp_th = 1.0 ! nothing is plotted because array values are 0
531	ENDIF
532
533	CALL DVRP_THRESHOLD( m-1, tmp_th )
534
535	CALL DVRP_VISUALIZE( m-1, 21, dvrp_filecount )
536
537	CALL cpu_log( log_point_s(26), 'dvrp_isosurface', 'stop' )
538
539	ELSEIF ( mode_dvrp(m)(1:6) == 'slicer' ) THEN
540
541	!
542	!-- DVRP-Calls for plotting slicers:
543	CALL cpu_log( log_point_s(27), 'dvrp_slicer', 'start' )
544
545	!
546	!-- Material and color definitions
547	tmp_r = 0.0; tmp_g = 0.0; tmp_b = 0.0; tmp_t = 0.0
548	CALL DVRP_MATERIAL_RGB( m-1, 1, tmp_r, tmp_g, tmp_b, tmp_t )
549
550	n_slicer = n_slicer + 1
551
552	!
553	!-- Using dolorfunction has not been properly tested
554	! islice_dvrp = n_slicer
555	! CALL DVRP_COLORFUNCTION( m-1, DVRP_CM_HLS, 25, &
556	! slicer_range_limits_dvrp(:,n_slicer), &
557	! color_dvrp )
558
559	!
560	!-- Set interval of values defining the colortable
561	CALL set_slicer_attributes_dvrp( n_slicer )
562
563	!
564	!-- Create user-defined colortable
565	CALL user_dvrp_coltab( 'slicer', output_variable )
566
567	CALL DVRP_COLORTABLE_HLS( m-1, 1, interval_values_dvrp, &
568	interval_h_dvrp, interval_l_dvrp, &
569	interval_s_dvrp, interval_a_dvrp )
570
571	!
572	!-- Compute and plot slicer in dvr-format
573	CALL DVRP_DATA( m-1, local_pf, 1, nx_dvrp, ny_dvrp, nz_dvrp, &
574	cyclic_dvrp, cyclic_dvrp, cyclic_dvrp )
575	tmp_pos = slicer_position
576	CALL DVRP_SLICER( m-1, section_mode, tmp_pos )
577
578	CALL DVRP_VISUALIZE( m-1, 2, dvrp_filecount )
579
580	CALL cpu_log( log_point_s(27), 'dvrp_slicer', 'stop' )
581
582	ENDIF
583
584	DEALLOCATE( local_pf )
585
586	ELSEIF ( mode_dvrp(m)(1:9) == 'pathlines' ) THEN
587
588	ALLOCATE( local_pfi(4,nxl:nxr+1,nys:nyn+1,nzb:nz_do3d) )
589	DO i = nxl, nxr+1
590	DO j = nys, nyn+1
591	DO k = nzb, nz_do3d
592	local_pfi(1,i,j,k) = u(k,j,i)
593	local_pfi(2,i,j,k) = v(k,j,i)
594	local_pfi(3,i,j,k) = w(k,j,i)
595	tmp_norm = SQRT( u(k,j,i) * u(k,j,i) + &
596	v(k,j,i) * v(k,j,i) + &
597	w(k,j,i) * w(k,j,i) )
598	tmp_alpha = ACOS( 0.0 * u(k,j,i) / tmp_norm + &
599	0.0 * v(k,j,i) / tmp_norm - &
600	1.0 * w(k,j,i) / tmp_norm )
601	tmp_alpha_w = tmp_alpha / pi * 180.0
602	local_pfi(4,i,j,k) = tmp_alpha_w
603	ENDDO
604	ENDDO
605	ENDDO
606
607	CALL cpu_log( log_point_s(31), 'dvrp_pathlines', 'start' )
608
609	CALL DVRP_DATA( m-1, local_pfi, 4, nx_dvrp, ny_dvrp, nz_dvrp, &
610	cyclic_dvrp, cyclic_dvrp, cyclic_dvrp )
611	CALL DVRP_VISUALIZE( m-1, 20, dvrp_filecount )
612
613	CALL cpu_log( log_point_s(31), 'dvrp_pathlines', 'stop' )
614
615	DEALLOCATE( local_pfi )
616
617	ENDIF
618
619	m = m + 1
620
621	ENDDO
622
623	dvrp_filecount = dvrp_filecount + 1
624
625	CALL cpu_log( log_point(27), 'data_output_dvrp', 'stop' )
626
627	#endif
628	END SUBROUTINE data_output_dvrp

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