/usr/share/slsh/local-packages/xfig/polyline.sl is in slang-xfig 0.2.0~.35-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 | % -*- mode:slang; mode:fold -*-
% FIXME:
% It would be better to put the polyline stuff in a separate structure to
% produce something like:
% { basic methods...
% attribute_methods
% { attributes }
% }
% Then the polyline list would look like:
%
% { basic methods
% attribute_methods
% { attributes }
% list ...
% }
% Polygon List would look like:
%
% { basic methods
% }
%
%
private variable Polyline_Type = struct
{
X, % vertices
% Methods
set_line_style, set_thickness, set_pen_color, set_fill_color, set_depth,
set_area_fill, set_join_style, set_cap_style,
object_code, % int (always 2)
sub_type, % (1: polyline, 2: box, 3: polygon, 4: arc-box, 5: imported-picture bounding-box)
line_style, % int (enumeration type)
thickness, % int (1/80 inch)
pen_color, % int (enumeration type, pen color)
fill_color, % int (enumeration type, fill color)
depth, % int (enumeration type)
pen_style, % int (pen style, not used)
area_fill, % int (enumeration type, -1 = no fill)
style_val, % float (1/80 inch) of on/off dashes, etc...
join_style, % int (enumeration type)
cap_style, % int (enumeration type, only used for POLYLINE)
radius, % int (1/80 inch, radius of arc-boxes)
forward_arrow, %
backward_arrow % int (0: off, 1: on)
};
private variable SUBTYPE_POLYLINE = 1;
private variable SUBTYPE_BOX = 2;
private variable SUBTYPE_POLYGON = 3;
private variable SUBTYPE_ARCBOX = 4;
private variable SUBTYPE_IMPPICT = 5;
private define set_line_style (obj, val)
{
obj.line_style = val;
}
private define set_thickness (obj, val)
{
obj.thickness = val;
}
private define set_pen_color (obj, val)
{
obj.pen_color = xfig_lookup_color (val);
}
private define set_fill_color (obj, val)
{
obj.fill_color = xfig_lookup_color (val);
}
private define set_depth (obj, val)
{
obj.depth = val;
}
private define set_area_fill (obj, val)
{
obj.area_fill = val;
}
private define set_join_style (obj, val)
{
obj.join_style = val;
}
private define set_cap_style (obj, val)
{
obj.cap_style = val;
}
Polyline_Type.set_line_style = &set_line_style;
Polyline_Type.set_thickness = &set_thickness;
Polyline_Type.set_pen_color = &set_pen_color;
Polyline_Type.set_fill_color = &set_fill_color;
Polyline_Type.set_depth = &set_depth;
Polyline_Type.set_area_fill = &set_area_fill;
Polyline_Type.set_join_style = &set_join_style;
Polyline_Type.set_cap_style = &set_cap_style;
Polyline_Type.sub_type = 1;
Polyline_Type.line_style = 0;
Polyline_Type.thickness = 1;
Polyline_Type.pen_color = 0;
Polyline_Type.fill_color = 0;
Polyline_Type.depth = 50;
Polyline_Type.pen_style = 0;
Polyline_Type.area_fill = -1;
Polyline_Type.style_val = 4.0;
Polyline_Type.join_style = 1;
Polyline_Type.cap_style = 0;
Polyline_Type.radius = 10;
Polyline_Type.forward_arrow = NULL;
Polyline_Type.backward_arrow = NULL;
private define write_arrow (fp, a, X, i1, i2)
{
variable X1, X2;
X1 = vector (X.x[i1], X.y[i1], X.z[i1]);
X2 = vector (X.x[i2], X.y[i2], X.z[i2]);
variable dX = vector_diff (X2,X1);
normalize_vector (dX);
variable x1, x2, y1, y2, width, height;
width = a.arrow_width;
height = a.arrow_height;
(x1,y1) = xfig_project_to_xfig_plane (X2);
(x2,y2) = xfig_project_to_xfig_plane (vector_sum (X2, vector_mul(height, dX)));
height = sqrt ((x2-x1)^2+(y2-y1)^2);
% Now make a vector normal to dX to project the width. This one will work
% for this purpose
dX = vector (-dX.y, dX.x, 0);
normalize_vector (dX);
(x2,y2) = xfig_project_to_xfig_plane (vector_sum (X2, vector_mul(width, dX)));
width = sqrt ((x2-x1)^2+(y2-y1)^2);
width = xfig_convert_units (width);
height = xfig_convert_units (height);
xfig_vwrite (fp, " %d %d %g %g %g\n",
a.arrow_type, a.arrow_style, a.arrow_thickness,
width, height);
}
private define write_polyline_header (fp, p, n)
{
xfig_vwrite (fp, "%d %d %d %d %d %d %d %d %d %g %d %d %d %d %d %d\n",
2, p.sub_type, p.line_style, p.thickness, p.pen_color,
p.fill_color, p.depth, p.pen_style, p.area_fill, p.style_val,
p.join_style, p.cap_style, p.radius,
(p.forward_arrow != NULL), (p.backward_arrow != NULL), n);
}
private define write_polyline_data (fp, x, y)
{
_for (0, length(x)-1, 1)
{
variable i = ();
xfig_vwrite (fp, " %d %d", x[i], y[i]);
}
xfig_write (fp, "\n");
}
private define prune(x,y)
{
variable dx = (x!=shift(x,-1));
variable dy = (y!=shift(y,-1));
dx[0]=1;
variable i = where (dx or dy);
if (length (i) != length(x))
return x[i], y[i];
return x, y;
}
private define write_one_polyline (fp, p, X)
{
variable x, y;
variable n;
(x,y) = xfig_project_to_xfig_plane (X);
n = length (x);
if (n < 2)
return;
x = xfig_convert_units (__tmp(x));
y = xfig_convert_units (__tmp(y));
#iftrue
(x,y) = prune (__tmp(x), __tmp(y));
n = length (x);
if (n < 2) return;
#endif
write_polyline_header (fp, p, n);
if (p.forward_arrow != NULL)
write_arrow (fp, p.forward_arrow, X, -2, -1);
if (p.backward_arrow != NULL)
write_arrow (fp, p.backward_arrow, X, 1, 0);
write_polyline_data (fp, x, y);
}
private define polyline_render_to_fp (p, fp)
{
write_one_polyline (fp, p, p.X);
}
private define polyline_rotate (obj, axis, theta)
{
obj.X = vector_rotate (obj.X, axis, theta);
}
private define polyline_translate (obj, dX)
{
obj.X = vector_sum (obj.X, dX);
}
private define polyline_scale (obj, sx, sy, sz)
{
variable X = obj.X;
X.x *= sx;
X.y *= sy;
X.z *= sz;
obj.X = X;
}
private define polyline_get_bbox (obj)
{
variable X = obj.X;
return min(X.x), max(X.x), min(X.y), max(X.y), min(X.z), max(X.z);
}
define xfig_new_polyline (X)
{
variable p = @Polyline_Type;
p.object_code = SUBTYPE_POLYLINE;
p.X = X;
variable obj = xfig_new_object (p);
obj.render_to_fp = &polyline_render_to_fp;
obj.rotate = &polyline_rotate;
obj.translate = &polyline_translate;
obj.scale = &polyline_scale;
obj.get_bbox = &polyline_get_bbox;
return obj;
}
%------------------------------------------------------------------------
% Polyline_List
%
% All objects in the polyline list have the same attributes.
%------------------------------------------------------------------------
%{{{
private define polyline_list_render_to_fp (p, fp)
{
foreach (p.list)
{
variable X = ();
write_one_polyline (fp, p, X);
}
}
private define polyline_list_rotate (obj, axis, theta)
{
variable list = obj.list;
_for (0, length(list)-1, 1)
{
variable i = ();
list[i] = vector_rotate (list[i], axis, theta);
}
}
private define polyline_list_translate (obj, dX)
{
variable list = obj.list;
_for (0, length(list)-1, 1)
{
variable i = ();
list[i] = vector_sum (list[i], dX);
}
}
private define polyline_list_scale (obj, sx, sy, sz)
{
variable list = obj.list;
_for (0, length(list)-1, 1)
{
variable i = ();
variable X = list[i];
X.x *= sx;
X.y *= sy;
X.z *= sz;
list[i] = X;
}
}
private define polyline_list_get_bbox (obj)
{
variable x0, x1, y0, y1, z0, z1;
variable xmin = _Inf, ymin = _Inf, zmin = _Inf;
variable xmax = -_Inf, ymax = -_Inf, zmax = -_Inf;
foreach (obj.list)
{
variable X = ();
variable tmp;
tmp = X.x;
x0 = min (tmp);
if (x0 < xmin) xmin = x0;
x1 = max (tmp);
if (x1 > xmax) xmax = x1;
tmp = X.y;
y0 = min (tmp);
if (y0 < ymin) ymin = y0;
y1 = max (tmp);
if (y1 > ymax) ymax = y1;
tmp = X.z;
z0 = min (tmp);
if (z0 < zmin) zmin = z0;
z1 = max (tmp);
if (z1 > zmax) zmax = z1;
}
return xmin, xmax, ymin, ymax, zmin, zmax;
}
private define polyline_list_insert (p, X)
{
list_insert (p.list, X);
}
define xfig_new_polyline_list ()
{
variable p = xfig_new_polyline (vector(0,0,0));
p = struct_combine (p, "insert", "list");
p.list = {};
p.insert = &polyline_list_insert;
p.render_to_fp = &polyline_list_render_to_fp;
p.rotate = &polyline_list_rotate;
p.translate = &polyline_list_translate;
p.scale = &polyline_list_scale;
p.get_bbox = &polyline_list_get_bbox;
return p;
}
%}}}
%------------------------------------------------------------------------
% Polygon_Type
%
%------------------------------------------------------------------------
%{{{
private define polygon_render_to_fp (obj, fp)
{
variable eye = xfig_get_eye ();
variable n = obj.n;
variable X = obj.X;
variable dX = vector_diff (eye, vector(X.x[0],X.y[0],X.z[0]));
if (dotprod (dX, n) < 0)
return;
write_one_polyline (fp, obj, X);
}
define xfig_new_polygon (X)
{
variable p = xfig_new_polyline (X);
p = struct_combine (p, "n");
p.object_code = SUBTYPE_POLYGON;
variable x = X.x, y = X.y, z = X.z;
variable x0 = vector (x[0], y[0], z[0]);
variable x1 = vector (x[1], y[1], z[1]);
variable x2 = vector (x[2], y[2], z[2]);
p.n = crossprod (vector_diff (x1, x0), vector_diff (x2, x1));
normalize_vector (p.n);
return p;
}
%}}}
%------------------------------------------------------------------------
% Polygon_List
%
% A Polygon_List_Type consists of a linked list of (closed) polygons.
% When rendered, it properly takes into account the position of the polygons
% with respect to the viewer.
%
% If drawing 3d objects, then use polygons and not polylines.
%------------------------------------------------------------------------
%{{{
private define poly_sort (a, b)
{
variable za, zb;
za = max (a.X.z);
zb = max (b.X.z);
if (za > zb) return +1;
if (za < zb) return -1;
variable na = a.n;
variable nb = b.n;
if (na == NULL)
{
if (nb != NULL)
return 1;
}
else if (nb == NULL)
return -1;
% Using the length has the feature that a single line will get drawn
% after something more complex.
return (length (a.X) < length (b.X));
}
private define sort_polygons (list)
{
variable count = length (list);
variable ps = Struct_Type[count];
variable i;
_for (0, count-1, 1)
{
i = ();
ps[i] = list[i];
}
return ps[array_sort (ps, &poly_sort)];
}
private define polygon_list_render_to_fp (obj, fp)
{
variable ps = sort_polygons (obj.list);
variable eye = xfig_get_eye ();
foreach (ps)
{
variable p = ();
variable n = p.n;
variable X = p.X;
variable dX = vector_diff (eye, vector(X.x[0],X.y[0],X.z[0]));
if (dotprod (dX, n) < 0)
continue;
write_one_polyline (fp, p, p.X);
}
}
private define polygon_list_set_line_style (obj, val)
{
foreach (obj.list)
{
obj = ();
obj.line_style = val;
}
}
private define polygon_list_set_thickness (obj, val)
{
foreach (obj.list)
{
obj = ();
obj.thickness = val;
}
}
private define polygon_list_set_pen_color (obj, val)
{
val = xfig_lookup_color (val);
foreach (obj.list)
{
obj = ();
obj.pen_color = val;
}
}
private define polygon_list_set_fill_color (obj, val)
{
val = xfig_lookup_color (val);
foreach (obj.list)
{
obj = ();
obj.fill_color = val;
}
}
private define polygon_list_set_area_fill (obj, val)
{
foreach (obj.list)
{
obj = ();
obj.area_fill = val;
}
}
define xfig_new_polygon_list ()
{
variable list = xfig_new_compound_list ();
list = struct_combine (list,
"set_line_style", "set_thickness", "set_pen_color",
"set_fill_color", "set_area_fill");
list.set_line_style = &polygon_list_set_line_style;
list.set_thickness = &polygon_list_set_thickness;
list.set_pen_color = &polygon_list_set_pen_color;
list.set_fill_color = &polygon_list_set_fill_color;
list.set_area_fill = &polygon_list_set_area_fill;
list.render_to_fp = &polygon_list_render_to_fp;
return list;
}
%}}}
%-----------------------------------------------------------------------
% Pict_Type
%
%-----------------------------------------------------------------------
%{{{
private define pict_render_to_fp (p, fp)
{
variable flipped = 0;
variable x0, y0, x1, y1, x, y;
(x0,y0) = xfig_project_to_xfig_plane (p.X);
% This point must correspond to the lower left corner of the picture
% or, in fig units the corner with the smallest x and the largest y.
variable bbox_x = p.bbox_x + (x0 - 0.5*max(p.bbox_x));
variable bbox_y = p.bbox_y;
bbox_y = bbox_y + (y0 - 0.5*max(bbox_y));
bbox_x = xfig_convert_units (bbox_x);
bbox_y = xfig_convert_units (bbox_y);
write_polyline_header (fp, p, 5);
xfig_vwrite (fp, " %d %s\n", p.flipped, p.pict_file);
write_polyline_data (fp, bbox_x, bbox_y);
}
private define pict_get_bbox (p)
{
variable X = p.X;
variable dx, dy, dz, x, y, z;
dx = 0.5*max(abs(p.bbox_x));
dy = 0.5*max(abs(p.bbox_y));
dz = 0.0;
x = X.x; y = X.y; z = X.z;
return x-dx, x+dx, y-dy, y+dy, z, z+dz;
}
private define pict_scale (p, sx, sy, sz)
{
variable X = p.X;
X.x *= sx;
X.y *= sy;
X.z *= sz;
p.bbox_x *= sx;
p.bbox_y *= sy;
%polyline_list_scale (p, sx, sy, sz);
}
private define pict_rotate (p, axis, theta)
{
p.X = vector_rotate (p.X, axis, theta);
}
private define pict_translate (p, dX)
{
p.X += dX;
}
define pict_rotate_pict (pict, theta_degrees)
{
% The convention adopted here is that the location of the picture is
% specified by the lower left corner of the box, rotated or
% otherwise. In fig units, this corner will have the largest y
% value and smallest x value (UL in diagram below, displayed in fig
% system):
%
% UL UR
% LL LR
%
% The rotation of the figure itself is encoded by how the box is
% written out:
%
% 0 degrees: LL LR UR UL LL (dx>0, dy>0)
% 90 degrees: LR UR UL LL LR (dx<0, dy>0)
% 180 degrees: UR UL LL LR UR (dx<0, dy<0)
% 270 degrees: UL LL LR UR UL (dx>0, dy<0)
variable bbox_x = pict.bbox_x;
variable bbox_y = pict.bbox_y;
theta_degrees = theta_degrees mod 360.0;
if (theta_degrees < 0) theta_degrees += 360;
variable n = int(theta_degrees / 90.0 + 0.5);
loop (n)
{
bbox_x[[0:3]] = bbox_x[[1:4]]; bbox_x[4] = bbox_x[0];
bbox_y[[0:3]] = bbox_y[[1:4]]; bbox_y[4] = bbox_y[0];
(bbox_x, bbox_y) = (bbox_y, bbox_x);
}
pict.bbox_x = bbox_x;
pict.bbox_y = bbox_y;
}
%!%+
%\function{xfig_scale_pict}
%\synopsis{}
%\usage{xfig_scale_pict (pict, sx [,sy])}
%\description
%\example
%\notes
%\seealso{}
%!%-
private define pict_scale_pict ()
{
variable pict, sx, sy;
if (_NARGS == 2)
{
(pict, sx) = ();
sy = sx;
}
else
{
(pict, sx, sy) = ();
}
pict.bbox_x *= sx;
pict.bbox_y *= sy;
}
% FIXME: This does not look right
define pict_get_pict_bbox (pict)
{
return max(abs(pict.bbox_x)), max(abs(pict.bbox_y));
}
%!%+
%\function{xfig_center_pict_in_box}
%\synopsis{Center a pict object in a box}
%\usage{xfig_center_pict_in_box (pict_object, X, dx, dy}
%\description
% This function takes a pict object and centers it in a box whose width
% is \var{dx} and whose height is \var{dy}. The vector \var{X} denotes the
% position of the lower-left corner of the box. If the pict object is too
% big to fit in the box, then its lower-left corner will coincide with the
% lower-left corner of the box.
%\seealso{xfig_translate_object}
%!%-
private define pict_center_pict (pict, X, dx, dy)
{
variable w, h;
(w, h) = pict_get_pict_bbox (pict);
variable yoff = 0.5*(dy - h);
if (yoff < 0)
yoff = 0.0*dy;
variable xoff = 0.5*(dx - w);
if (xoff < 0)
xoff = 0.0*dx; % used to be 0.1*dx
pict_translate (pict, vector_sum(X, vector (xoff, yoff, 0)));
}
%!%+
%\function{xfig_new_pict}
%\synopsis{Create an object that encapsulates an image file}
%\usage{obj = xfig_new_pict(filename, width, height [; qualifiers])}
%\description
% This function creates an object containing the specified image file
% and scales it to the specified width an height. The resulting
% object containing the image will be centered at (0,0,0).
%
%\qualifiers
% The \exmp{just} qualifier may be used to indicate how the object is
% to be justified with respect to the origin. Its value must be a 2d
% numeric array [dx,dy] that gives the offset of the center of the
% image scaled with respect to the bounding box. Examples include:
%#v+
% just=[0,0] Center object upon the origin (default)
% just=[-0.5,-0.5] Put the lower-left corner at the origin
% just=[0.5,-0.5] Put the lower-right corner at the origin
% just=[0.5,0.5] Put the upper-right corner at the origin
% just=[-0.5,-0.5] Put the upper-left corner at the origin
%#v-
%\seealso{xfig_new_text, xfig_justify_object}
%!%-
define xfig_new_pict (file, dx, dy)
{
variable X = vector(0,0,0);
variable p = xfig_new_polyline (X);
p.sub_type = SUBTYPE_IMPPICT;
p = struct_combine (p, "pict_file", "flipped", "bbox_x",
"bbox_y", "rotate_pict", "scale_pict", "get_pict_bbox",
"center_pict");
% Use the corners for the polyline
p.flipped = 0;
if (dy < 0)
{
p.flipped = 1;
dy = -dy;
}
p.bbox_x = [0, dx, dx, 0, 0];
p.bbox_y = [0, 0, dy, dy, 0];
p.pict_file = file;
p.rotate_pict = &pict_rotate_pict;
p.scale_pict = &pict_scale_pict;
p.get_pict_bbox = &pict_get_pict_bbox;
p.center_pict = &pict_center_pict;
p.render_to_fp = &pict_render_to_fp;
p.scale = &pict_scale;
p.rotate = &pict_rotate;
p.get_bbox = &pict_get_bbox;
variable just = qualifier ("just");
if (just != NULL)
{
if (length (just) == 2)
just = [just, 0];
xfig_justify_object (p, X, vector(just[0], just[1], just[2]));
}
return p;
}
%}}}
define xfig_new_pyramid (n, radius, height)
{
variable a = xfig_new_polygon_list ();
variable thetas = [n:0:-1]*(2*PI)/n;
variable xs = radius * cos (thetas);
variable ys = radius * sin (thetas);
% base
variable X = vector (xs, ys, Double_Type[n+1]);
a.insert (xfig_new_polygon (X));
_for (0, n-1, 1)
{
variable i = ();
variable j = i+1;
X = vector ([xs[i], 0, xs[j], xs[i]],
[ys[i], 0, ys[j], ys[i]],
[0, height, 0, 0]);
a.insert (xfig_new_polygon (X));
}
return a;
}
define xfig_new_arrow_head (w, h, dX)
{
dX = @dX;
normalize_vector (dX);
variable a = xfig_new_pyramid (6, w*0.5, h);
variable theta = acos (dX.z);
if (theta != 0.0)
{
variable axis = unit_vector (crossprod (vector (0,0,1), dX));
a.rotate (axis, theta);
}
a.set_area_fill (20);
a.set_fill_color ("default");
return a;
}
private variable XFig_Arrow_Type = struct
{
arrow_type, % int (enumeration type)
arrow_style, % int (enumeration type)
arrow_thickness, % float (1/80 inch)
arrow_width, % float (Fig units)
arrow_height, % float (Fig units)
};
define xfig_create_arrow ()
{
variable a = @XFig_Arrow_Type;
a.arrow_type = 2;
a.arrow_style = 3;
a.arrow_thickness = 1;
a.arrow_width = (1.0/80.0)*4 * 2.54;
a.arrow_height = (1.0/80.0)*8 * 2.54;
return a;
}
|