2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
22 real center_gap = 4.00;
25 total_pad = string_to_integer(argv[1]);
27 center_gap = string_to_real(argv[2]);
29 real pad_width = 0.60;
38 real pad_spacing = 1.27;
40 int num_pad = total_pad / 2; /* per side */
42 string name = sprintf ("SOIC-%d", total_pad);
44 real package_width = (num_pad - 1) * pad_spacing + 1.61;
46 real package_height = center_gap + 2 * pad_height + 0.4;
48 real pad_y_off = center_gap / 2 + pad_height / 2;
53 return pad_spacing * (n - (num_pad - 1) / 2);
56 real corner(int dx, int dy) {
57 real x = dx * package_width / 2;
58 real y = dy * package_height / 2;
61 line(x, y, x - dx * len, y);
62 line(x, y, x, y - dy * len);
72 line(-package_width/2 + dot_off, package_height/2 - dot_off,
73 -package_width/2 + dot_off, package_height/2 - dot_off);
75 for (int pad = 0; pad < num_pad; pad++) {
76 /* bottom (1-num_pad) */
82 sprintf("%d", pad + 1),
83 sprintf("%d", pad + 1));
85 /* top side (total_pad - num_pad+1) */
91 sprintf("%d", total_pad - pad),
92 sprintf("%d", total_pad - pad));