1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
|
! plshades demo, using color fill
!
! Copyright (C) 2004-2016 Alan W. Irwin
!
! This file is part of PLplot.
!
! PLplot is free software; you can redistribute it and/or modify
! it under the terms of the GNU Library General Public License as
! published by the Free Software Foundation; either version 2 of the
! License, or (at your option) any later version.
!
! PLplot is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU Library General Public License for more details.
!
! You should have received a copy of the GNU Library General Public
! License along with PLplot; if not, write to the Free Software
! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
! N.B. the pl_test_flt parameter used in this code is only
! provided by the plplot module to allow convenient developer
! testing of either kind(1.0) or kind(1.0d0) floating-point
! precision regardless of the floating-point precision of the
! PLplot C libraries. We do not guarantee the value of this test
! parameter so it should not be used by users, and instead user
! code should replace the pl_test_flt parameter by whatever
! kind(1.0) or kind(1.0d0) precision is most convenient for them.
! For further details on floating-point precision issues please
! consult README_precision in this directory.
!
program x16f
use plplot, double_PI => PL_PI
use iso_c_binding, only: c_ptr, c_loc, c_f_pointer
implicit none
real(kind=pl_test_flt), parameter :: PI = double_PI
real(kind=pl_test_flt) xx, yy, argx, argy, distort, r, t
integer NLEVEL, NX, NY, PERIMETERPTS, xdim, ydim
parameter(NLEVEL = 20)
! xdim and ydim are the static dimensions of the 2D arrays while
! NX and NY are the defined area.
parameter(xdim=99, NX = 35)
parameter(ydim=100, NY = 46)
parameter(PERIMETERPTS = 100)
real(kind=pl_test_flt) clevel(NLEVEL), shedge(NLEVEL+1), &
z(xdim,ydim), w(xdim,ydim), xg1(xdim), yg1(ydim), &
xg2(xdim,ydim), yg2(xdim,ydim), zmin, zmax, &
px(PERIMETERPTS), py(PERIMETERPTS)
integer cont_color
real(kind=pl_test_flt) fill_width, cont_width
real(kind=pl_test_flt) colorbar_width, colorbar_height
integer NUM_AXES, NUM_LABELS
parameter(NUM_AXES=1, NUM_LABELS=1)
character(len=20) :: axis_opts(NUM_AXES)
integer num_values(NUM_AXES)
real(kind=pl_test_flt) values(NUM_AXES,NLEVEL+1)
real(kind=pl_test_flt) axis_ticks(NUM_AXES)
integer axis_subticks(NUM_AXES)
character(len=100) :: labels(NUM_LABELS)
integer label_opts(NUM_LABELS)
integer i, j
integer :: plparseopts_rc
real(kind=pl_test_flt) tr(6)
! Global parameters to be used in mypltr callback
real(kind=pl_test_flt), parameter :: xmin = -1.0_pl_test_flt
real(kind=pl_test_flt), parameter :: xmax = 1.0_pl_test_flt
real(kind=pl_test_flt), parameter :: ymin = -1.0_pl_test_flt
real(kind=pl_test_flt), parameter :: ymax = 1.0_pl_test_flt
! Use no callback?
logical, parameter :: no_callback = .false.
! Use tr callback? (only meaningful
! if no_callback is .false.).
logical, parameter :: tr_callback = .false.
! Use Fortran callback with no data? (only meaningful
! if no_callback and tr_callback are .false.).
logical, parameter :: mypltr_callback = .false.
type mypltr_data_type
! Only contains data required by the mypltr_data callback
integer :: xpts_data, ypts_data
real(kind=pl_test_flt) :: xmin_data, xmax_data, ymin_data, ymax_data
end type mypltr_data_type
! Global data type to be used in mypltr_data callback
type(mypltr_data_type), target :: data
data%xpts_data = NX
data%ypts_data = NY
data%xmin_data = xmin
data%xmax_data = xmax
data%ymin_data = ymin
data%ymax_data = ymax
tr = (/ (xmax-xmin)/real(NX-1,kind=pl_test_flt), 0.0_pl_test_flt, xmin, &
0.0_pl_test_flt, (ymax-ymin)/real(NY-1,kind=pl_test_flt), ymin /)
! Process command-line arguments
plparseopts_rc = plparseopts(PL_PARSE_FULL)
if(plparseopts_rc .ne. 0) stop "plparseopts error"
! Load color palettes
call plspal0('cmap0_black_on_white.pal')
call plspal1('cmap1_gray.pal', .true.)
! Reduce colors in cmap 0 so that cmap 1 is useful on a 16-color display
call plscmap0n(3)
! Initialize plplot
call plinit()
! Calculate the data matrices.
do i=1,NX
xx = real(i-1-(NX/2),kind=pl_test_flt)/real(NX/2,kind=pl_test_flt)
do j=1,NY
yy = real(j-1-(NY/2),kind=pl_test_flt)/real(NY/2,kind=pl_test_flt) - 1.0_pl_test_flt
z(i,j) = - sin(7._pl_test_flt*xx) * cos(7._pl_test_flt*yy) + xx*xx - yy*yy
w(i,j) = - cos(7._pl_test_flt*xx) * sin(7._pl_test_flt*yy) + 2._pl_test_flt*xx*yy
enddo
enddo
call a2mnmx(z, NX, NY, zmin, zmax, xdim)
do i = 1, NLEVEL
clevel(i) = zmin + (zmax - zmin) * (i - 0.5_pl_test_flt) / real(NLEVEL,kind=pl_test_flt)
enddo
do i = 1, NLEVEL+1
shedge(i) = zmin + (zmax - zmin) * real(i-1,kind=pl_test_flt) / real(NLEVEL,kind=pl_test_flt)
enddo
! Build the 1-d coord arrays.
distort = 0.4_pl_test_flt
do i=1,NX
xx = -1._pl_test_flt + real(i-1,kind=pl_test_flt)*2._pl_test_flt/real(NX-1,kind=pl_test_flt)
xg1(i) = xx + distort*cos(0.5_pl_test_flt*PI*xx)
enddo
do j=1,NY
yy = -1._pl_test_flt + real(j-1,kind=pl_test_flt)*2._pl_test_flt/real(NY-1,kind=pl_test_flt)
yg1(j) = yy - distort*cos(0.5_pl_test_flt*PI*yy)
enddo
! Build the 2-d coord arrays.
do i=1,NX
xx = -1._pl_test_flt + real(i-1,kind=pl_test_flt)*2._pl_test_flt/real(NX-1,kind=pl_test_flt)
argx = 0.5_pl_test_flt*PI*xx
do j=1,NY
yy = -1._pl_test_flt + real(j-1,kind=pl_test_flt)*2._pl_test_flt/real(NY-1,kind=pl_test_flt)
argy = 0.5_pl_test_flt*PI*yy
xg2(i,j) = xx + distort*cos(argx)*cos(argy)
yg2(i,j) = yy - distort*cos(argx)*cos(argy)
enddo
enddo
! Plot using transform of index range to xmin, xmax, ymin, ymax
call pladv(0)
call plvpor(0.1_pl_test_flt, 0.9_pl_test_flt, 0.1_pl_test_flt, 0.9_pl_test_flt)
call plwind(-1.0_pl_test_flt, 1.0_pl_test_flt, -1.0_pl_test_flt, 1.0_pl_test_flt)
call plpsty(0)
fill_width = 2
cont_color = 0
cont_width = 0
axis_opts(1) = 'bcvtm'
axis_ticks(1) = 0.0_pl_test_flt
axis_subticks(1) = 0
label_opts(1) = PL_COLORBAR_LABEL_BOTTOM
labels(1) = 'Magnitude'
if(no_callback) then
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .true. )
elseif(tr_callback) then
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .true., tr )
elseif(mypltr_callback) then
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .true., mypltr )
else
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .true., mypltr_data, c_loc(data) )
endif
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
num_values(1) = NLEVEL + 1;
values(1,:) = shedge;
call plcolorbar( colorbar_width, colorbar_height, &
ior(PL_COLORBAR_SHADE, PL_COLORBAR_SHADE_LABEL), 0, &
0.005_pl_test_flt, 0.0_pl_test_flt, 0.0375_pl_test_flt, 0.875_pl_test_flt, 0, 1, 1, &
0.0_pl_test_flt, 0.0_pl_test_flt, &
cont_color, cont_width, &
label_opts, labels, &
axis_opts, &
axis_ticks, axis_subticks, &
num_values, values )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plcol0(1)
call plbox('bcnst', 0.0_pl_test_flt, 0, 'bcnstv', 0.0_pl_test_flt, 0)
call plcol0(2)
call pllab('distance', 'altitude', 'Bogon density')
! Plot using 1d coordinate transform
call plspal0('cmap0_black_on_white.pal')
call plspal1('cmap1_blue_yellow.pal', .true.)
call plscmap0n(3)
call pladv(0)
call plvpor(0.1_pl_test_flt, 0.9_pl_test_flt, 0.1_pl_test_flt, 0.9_pl_test_flt)
call plwind(-1.0_pl_test_flt, 1.0_pl_test_flt, -1.0_pl_test_flt, 1.0_pl_test_flt)
call plpsty(0)
fill_width = 2
cont_color = 0
cont_width = 0
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .true., xg1(:NX), yg1(:NY))
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
num_values(1) = NLEVEL + 1;
values(1,:) = shedge;
call plcolorbar( colorbar_width, colorbar_height, &
ior(PL_COLORBAR_SHADE, PL_COLORBAR_SHADE_LABEL), 0, &
0.005_pl_test_flt, 0.0_pl_test_flt, 0.0375_pl_test_flt, 0.875_pl_test_flt, 0, 1, 1, &
0.0_pl_test_flt, 0.0_pl_test_flt, &
cont_color, cont_width, &
label_opts, labels, &
axis_opts, &
axis_ticks, axis_subticks, &
num_values, values )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plcol0(1)
call plbox('bcnst', 0.0_pl_test_flt, 0, 'bcnstv', 0.0_pl_test_flt, 0)
call plcol0(2)
call pllab('distance', 'altitude', 'Bogon density')
! Plot using 2d coordinate transform
call plspal0('cmap0_black_on_white.pal')
call plspal1('cmap1_blue_red.pal', .true.)
call plscmap0n(3)
call pladv(0)
call plvpor(0.1_pl_test_flt, 0.9_pl_test_flt, 0.1_pl_test_flt, 0.9_pl_test_flt)
call plwind(-1.0_pl_test_flt, 1.0_pl_test_flt, -1.0_pl_test_flt, 1.0_pl_test_flt)
call plpsty(0)
fill_width = 2
cont_color = 0
cont_width = 0
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .false., xg2(:NX,:NY), yg2(:NX,:NY) )
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
num_values(1) = NLEVEL + 1;
values(1,:) = shedge;
call plcolorbar( colorbar_width, colorbar_height, &
ior(PL_COLORBAR_SHADE, PL_COLORBAR_SHADE_LABEL), 0, &
0.005_pl_test_flt, 0.0_pl_test_flt, 0.0375_pl_test_flt, 0.875_pl_test_flt, 0, 1, 1, &
0.0_pl_test_flt, 0.0_pl_test_flt, &
cont_color, cont_width, &
label_opts, labels, &
axis_opts, &
axis_ticks, axis_subticks, &
num_values, values )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plcol0(1)
call plbox('bcnst', 0.0_pl_test_flt, 0, 'bcnstv', 0.0_pl_test_flt, 0)
call plcol0(2)
call plcont(w, 1, nx, 1, ny, clevel, xg2, yg2)
call pllab('distance', 'altitude', &
'Bogon density, with streamlines')
! Plot using 2d coordinate transform and plshades contours.
call plspal0('')
call plspal1('', .true. )
call plscmap0n(3)
call pladv(0)
call plvpor(0.1_pl_test_flt, 0.9_pl_test_flt, 0.1_pl_test_flt, 0.9_pl_test_flt)
call plwind(-1.0_pl_test_flt, 1.0_pl_test_flt, -1.0_pl_test_flt, 1.0_pl_test_flt)
call plpsty(0)
fill_width = 2
cont_color = 2
cont_width = 3
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .false., xg2(:NX,:NY), yg2(:NX,:NY) )
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
num_values(1) = NLEVEL + 1;
values(1,:) = shedge;
call plcolorbar( colorbar_width, colorbar_height, &
ior(PL_COLORBAR_SHADE, PL_COLORBAR_SHADE_LABEL), 0, &
0.005_pl_test_flt, 0.0_pl_test_flt, 0.0375_pl_test_flt, 0.875_pl_test_flt, 0, 1, 1, &
0.0_pl_test_flt, 0.0_pl_test_flt, &
2, 3._pl_test_flt, &
label_opts, labels, &
axis_opts, &
axis_ticks, axis_subticks, &
num_values, values )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plcol0(1)
call plbox('bcnst', 0.0_pl_test_flt, 0, 'bcnstv', 0.0_pl_test_flt, 0)
call plcol0(2)
call pllab('distance', 'altitude', 'Bogon density')
! Example with polar coordinates.
call plspal0('cmap0_black_on_white.pal')
call plspal1('cmap1_gray.pal', .true. )
call plscmap0n(3)
call pladv(0)
call plvpor(0.1_pl_test_flt, 0.9_pl_test_flt, 0.1_pl_test_flt, 0.9_pl_test_flt)
call plwind(-1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, 1._pl_test_flt)
call plpsty(0)
! Build new coordinate matrices.
do i = 1, NX
r = real(i-1,kind=pl_test_flt)/real(NX-1,kind=pl_test_flt)
do j = 1, NY
t = (2._pl_test_flt*PI/real(NY-1,kind=pl_test_flt))*real(j-1,kind=pl_test_flt)
xg2(i,j) = r*cos(t)
yg2(i,j) = r*sin(t)
z(i,j) = exp(-r*r)*cos(5._pl_test_flt*PI*r)*cos(5._pl_test_flt*t)
enddo
enddo
! Need a new shedge to go along with the new data set.
call a2mnmx(z, NX, NY, zmin, zmax, xdim)
do i = 1, NLEVEL+1
shedge(i) = zmin + (zmax - zmin) * real(i-1,kind=pl_test_flt) / real(NLEVEL,kind=pl_test_flt)
enddo
! Now we can shade the interior region.
fill_width = 2
cont_color = 0
cont_width = 0
call plshades(z(:NX,:NY), -1._pl_test_flt, 1._pl_test_flt, -1._pl_test_flt, &
1._pl_test_flt, &
shedge, fill_width, &
cont_color, cont_width, .false., xg2(:NX,:NY), yg2(:NX,:NY) )
! Smaller text
call plschr( 0.0_pl_test_flt, 0.75_pl_test_flt )
! Small ticks on the vertical axis
call plsmaj( 0.0_pl_test_flt, 0.5_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 0.5_pl_test_flt )
num_values(1) = NLEVEL + 1;
values(1,:) = shedge;
call plcolorbar( colorbar_width, colorbar_height, &
ior(PL_COLORBAR_SHADE, PL_COLORBAR_SHADE_LABEL), 0, &
0.005_pl_test_flt, 0.0_pl_test_flt, 0.0375_pl_test_flt, 0.875_pl_test_flt, 0, 1, 1, &
0.0_pl_test_flt, 0.0_pl_test_flt, &
cont_color, cont_width, &
label_opts, labels, &
axis_opts, &
axis_ticks, axis_subticks, &
num_values, values )
! Reset text and tick sizes
call plschr( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmaj( 0.0_pl_test_flt, 1.0_pl_test_flt )
call plsmin( 0.0_pl_test_flt, 1.0_pl_test_flt )
! Now we can draw the perimeter. (If do before, shade stuff may overlap.)
do i = 1, PERIMETERPTS
t = (2._pl_test_flt*PI/real(PERIMETERPTS-1,kind=pl_test_flt))*real(i-1,kind=pl_test_flt)
px(i) = cos(t)
py(i) = sin(t)
enddo
call plcol0(1)
call plline(px, py)
! And label the plot.
call plcol0(2)
call pllab( '', '', 'Tokamak Bogon Instability' )
call plend
contains
! Callback function that relies on global NX, NY, xmin, xmax, ymin, ymax
subroutine mypltr( x, y, xt, yt )
! These callback arguments must have exactly these attributes.
real(kind=pl_test_flt), intent(in) :: x, y
real(kind=pl_test_flt), intent(out) :: xt, yt
xt = xmin + ((xmax-xmin)/real(NX-1,kind=pl_test_flt))*x
yt = ymin + ((ymax-ymin)/real(NY-1,kind=pl_test_flt))*y
end subroutine mypltr
! Callback function that uses data argument to pass required data.
subroutine mypltr_data( x, y, xt, yt, data )
! These callback arguments must have exactly these attributes.
real(kind=pl_test_flt), intent(in) :: x, y
real(kind=pl_test_flt), intent(out) :: xt, yt
type(c_ptr), intent(in) :: data
type(mypltr_data_type), pointer :: d
call c_f_pointer(data, d)
xt = d%xmin_data + ((d%xmax_data-d%xmin_data)/real(d%xpts_data-1,kind=pl_test_flt))*x
yt = d%ymin_data + ((d%ymax_data-d%ymin_data)/real(d%ypts_data-1,kind=pl_test_flt))*y
end subroutine mypltr_data
!----------------------------------------------------------------------------
! Subroutine a2mnmx
! Minimum and the maximum elements of a 2-d array.
subroutine a2mnmx(f, nx, ny, fmin, fmax, xdim)
use plplot
implicit none
integer i, j, nx, ny, xdim
real(kind=pl_test_flt) f(xdim, ny), fmin, fmax
fmax = f(1, 1)
fmin = fmax
do j = 1, ny
do i = 1, nx
fmax = max(fmax, f(i, j))
fmin = min(fmin, f(i, j))
enddo
enddo
end subroutine a2mnmx
end program x16f
|