/usr/share/doc/gmt/html/man/psxy.html is in gmt-doc 4.5.12-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 | <!-- Creator : groff version 1.22.2 -->
<!-- CreationDate: Thu Feb 27 18:13:53 2014 -->
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta name="generator" content="groff -Thtml, see www.gnu.org">
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<meta name="Content-Style" content="text/css">
<style type="text/css">
p { margin-top: 0; margin-bottom: 0; vertical-align: top }
pre { margin-top: 0; margin-bottom: 0; vertical-align: top }
table { margin-top: 0; margin-bottom: 0; vertical-align: top }
h1 { text-align: center }
</style>
<title>PSXY</title>
</head>
<body bgcolor="#ffffff">
<h1 align="center">PSXY</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#EXAMPLES">EXAMPLES</a><br>
<a href="#CUSTOM SYMBOLS">CUSTOM SYMBOLS</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">psxy −
Plot lines, polygons, and symbols on maps</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
<i>files</i> <b>−J</b><i>parameters</i>
<b>−R</b><i>west</i>/<i>east</i>/<i>south</i>/<i>north</i>[<b>r</b>]
[ <b>−A</b>[<b>m</b>|<b>p</b>] ] [
<b>−B</b>[<b>p</b>|<b>s</b>]<i>parameters</i> ] [
<b>−C</b><i>cptfile</i> ] [
<b>−D</b><i>dx</i>/<i>dy</i> ] [
<b>−E</b>[<b>x</b>|<b>y</b>|<b>X</b>|<b>Y</b>][<b>n</b>][<i>cap</i>][/[<b>-</b>|<b>+</b>]<i>pen</i>]
] [ <b>−G</b><i>fill</i> ] [
<b>−H</b>[<b>i</b>][<i>nrec</i>] ] [
<b>−I</b><i>intens</i> ] [ <b>−K</b> ] [
<b>−L</b> ] [ <b>−N</b> ] [ <b>−O</b> ] [
<b>−P</b> ] [
<b>−S</b>[<i>symbol</i>][<i>size</i>] ] [
<b>−U</b>[<i>just</i>/<i>dx</i>/<i>dy</i>/][<b>c</b>|<i>label</i>]
] [ <b>−V</b> ] [
<b>−W</b>[<b>-</b>|<b>+</b>][<i>pen</i>] ] [
<b>−X</b>[<b>a</b>|<b>c</b>|<b>r</b>][<i>x-shift</i>[<b>u</b>]]
] [
<b>−Y</b>[<b>a</b>|<b>c</b>|<b>r</b>][<i>y-shift</i>[<b>u</b>]]
] [ <b>−:</b>[<b>i</b>|<b>o</b>] ] [
<b>−bi</b>[<b>s</b>|<b>S</b>|<b>d</b>|<b>D</b>[<i>ncol</i>]|<b>c</b>[<i>var1</i><b>/</b><i>...</i>]]
] [ <b>−c</b><i>copies</i> ] [
<b>−f</b><i>colinfo</i> ] [
<b>−g</b>[<b>a</b>]<b>x</b>|<b>y</b>|<b>d</b>|<b>X</b>|<b>Y</b>|<b>D</b>|[<i>col</i>]<b>z</b>[+|-]<i>gap</i>[<b>u</b>]
] [ <b>−m</b>[<i>flag</i>] ]</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
reads (<i>x</i>,<i>y</i>) pairs from <i>files</i> [or
standard input] and generates <i>PostScript</i> code that
will plot lines, polygons, or symbols at those locations on
a map. If a symbol is selected and no symbol size given,
then <b>psxy</b> will interpret the third column of the
input data as symbol size. Symbols whose <i>size</i> is
<= 0 are skipped. If no symbols are specified then the
symbol code (see <b>−S</b> below) must be present as
last column in the input. Multiple segment files may be
plotted using the <b>−m</b> option. If <b>−S</b>
is not used, a line connecting the data points will be drawn
instead. To explicitly close polygons, use <b>−L</b>.
Select a fill with <b>−G</b>. If <b>−G</b> is
set, <b>−W</b> will control whether the polygon
outline is drawn or not. If a symbol is selected,
<b>−G</b> and <b>−W</b> determines the fill and
outline/no outline, respectively. The <i>PostScript</i> code
is written to standard output.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><i>files</i></p></td>
<td width="4%"></td>
<td width="78%">
<p>List one or more file-names. If no files are given,
<b>psxy</b> will read standard input. Use <b>−T</b> to
ignore all input files, including standard input (see
below).</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−J</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Selects the map projection. Scale is UNIT/degree,
1:xxxxx, or width in UNIT (upper case modifier). UNIT is cm,
inch, or m, depending on the <b><A HREF="gmtdefaults.html#MEASURE_UNIT">MEASURE_UNIT</A></b> setting in
.gmtdefaults4, but this can be overridden on the command
line by appending <b>c</b>, <b>i</b>, or <b>m</b> to the
scale/width value. When central meridian is optional,
default is center of longitude range on <b>−R</b>
option. Default standard parallel is the equator. For map
height, max dimension, or min dimension, append <b>h</b>,
<b>+</b>, or <b>-</b> to the width, respectively.</p></td></tr>
</table>
<p style="margin-left:22%;">More details can be found in
the <b><A HREF="psbasemap.html">psbasemap</A></b> man pages.</p>
<p style="margin-left:22%; margin-top: 1em"><b>CYLINDRICAL
PROJECTIONS:</b></p>
<p style="margin-left:22%; margin-top: 1em"><b>−Jc</b><i>lon0/lat0/scale</i>
(Cassini) <b><br>
−Jcyl_stere</b>/[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i>
(Cylindrical Stereographic) <b><br>
−Jj</b>[<i>lon0/</i>]<i>scale</i> (Miller) <b><br>
−Jm</b>[<i>lon0</i>/[<i>lat0/</i>]]<i>scale</i>
(Mercator) <b><br>
−Jm</b><i>lon0/lat0/scale</i> (Mercator - Give
meridian and standard parallel) <b><br>
−Jo</b>[<b>a</b>]<i>lon0/lat0/azimuth/scale</i>
(Oblique Mercator - point and azimuth) <b><br>
−Jo</b>[<b>b</b>]<i>lon0/lat0/lon1/lat1/scale</i>
(Oblique Mercator - two points) <b><br>
−Joc</b><i>lon0/lat0/lonp/latp/scale</i> (Oblique
Mercator - point and pole) <b><br>
−Jq</b>[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i>
(Cylindrical Equidistant) <b><br>
−Jt</b><i>lon0/</i>[<i>lat0/</i>]<i>scale</i> (TM -
Transverse Mercator) <b><br>
−Ju</b><i>zone/scale</i> (UTM - Universal Transverse
Mercator) <b><br>
−Jy</b>[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i>
(Cylindrical Equal-Area)</p>
<p style="margin-left:22%; margin-top: 1em"><b>CONIC
PROJECTIONS:</b></p>
<p style="margin-left:22%; margin-top: 1em"><b>−Jb</b><i>lon0/lat0/lat1/lat2/scale</i>
(Albers) <b><br>
−Jd</b><i>lon0/lat0/lat1/lat2/scale</i> (Conic
Equidistant) <b><br>
−Jl</b><i>lon0/lat0/lat1/lat2/scale</i> (Lambert Conic
Conformal) <b><br>
−Jpoly</b>/[<i>lon0/</i>[<i>lat0/</i>]]<i>scale</i>
((American) Polyconic)</p>
<p style="margin-left:22%; margin-top: 1em"><b>AZIMUTHAL
PROJECTIONS:</b></p>
<p style="margin-left:22%; margin-top: 1em"><b>−Ja</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i>
(Lambert Azimuthal Equal-Area) <b><br>
−Je</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i>
(Azimuthal Equidistant) <b><br>
−Jf</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i>
(Gnomonic) <b><br>
−Jg</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i>
(Orthographic) <b><br>
−Jg</b><i>lon0/lat0/altitude/azimuth/tilt/twist/Width/Height/scale</i>
(General Perspective). <b><br>
−Js</b><i>lon0/lat0</i>[<i>/horizon</i>]<i>/scale</i>
(General Stereographic)</p>
<p style="margin-left:22%; margin-top: 1em"><b>MISCELLANEOUS
PROJECTIONS:</b></p>
<p style="margin-left:22%; margin-top: 1em"><b>−Jh</b>[<i>lon0/</i>]<i>scale</i>
(Hammer) <b><br>
−Ji</b>[<i>lon0/</i>]<i>scale</i> (Sinusoidal) <b><br>
−Jkf</b>[<i>lon0/</i>]<i>scale</i> (Eckert IV) <b><br>
−Jk</b>[<b>s</b>][<i>lon0/</i>]<i>scale</i> (Eckert
VI) <b><br>
−Jn</b>[<i>lon0/</i>]<i>scale</i> (Robinson) <b><br>
−Jr</b>[<i>lon0/</i>]<i>scale</i> (Winkel Tripel)
<b><br>
−Jv</b>[<i>lon0/</i>]<i>scale</i> (Van der Grinten)
<b><br>
−Jw</b>[<i>lon0/</i>]<i>scale</i> (Mollweide)</p>
<p style="margin-left:22%; margin-top: 1em"><b>NON-GEOGRAPHICAL
PROJECTIONS:</b></p>
<p style="margin-left:22%; margin-top: 1em"><b>−Jp</b>[<b>a</b>]<i>scale</i>[<i>/origin</i>][<b>r</b>|<b>z</b>]
(Polar coordinates (theta,r)) <b><br>
−Jx</b><i>x-scale</i>[<b>d</b>|<b>l</b>|<b>p</b><i>pow</i>|<b>t</b>|<b>T</b>][<i>/y-scale</i>[<b>d</b>|<b>l</b>|<b>p</b><i>pow</i>|<b>t</b>|<b>T</b>]]
(Linear, log, and power scaling)</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>−R</b></p></td>
<td width="8%"></td>
<td width="78%">
<p style="margin-top: 1em"><i>xmin</i>, <i>xmax</i>,
<i>ymin</i>, and <i>ymax</i> specify the Region of interest.
For geographic regions, these limits correspond to <i>west,
east, south,</i> and <i>north</i> and you may specify them
in decimal degrees or in [+-]dd:mm[:ss.xxx][W|E|S|N] format.
Append <b>r</b> if lower left and upper right map
coordinates are given instead of w/e/s/n. The two shorthands
<b>−Rg</b> and <b>−Rd</b> stand for global
domain (0/360 and -180/+180 in longitude respectively, with
-90/+90 in latitude). Alternatively, specify the name of an
existing grid file and the <b>−R</b> settings (and
grid spacing, if applicable) are copied from the grid. For
calendar time coordinates you may either give (a) relative
time (relative to the selected <b><A HREF="gmtdefaults.html#TIME_EPOCH">TIME_EPOCH</A></b> and in the
selected <b><A HREF="gmtdefaults.html#TIME_UNIT">TIME_UNIT</A></b>; append <b>t</b> to
<b>−JX</b>|<b>x</b>), or (b) absolute time of the form
[<i>date</i>]<b>T</b>[<i>clock</i>] (append <b>T</b> to
<b>−JX</b>|<b>x</b>). At least one of <i>date</i> and
<i>clock</i> must be present; the <b>T</b> is always
required. The <i>date</i> string must be of the form
[-]yyyy[-mm[-dd]] (Gregorian calendar) or yyyy[-Www[-d]]
(ISO week calendar), while the <i>clock</i> string must be
of the form hh:mm:ss[.xxx]. The use of delimiters and their
type and positions must be exactly as indicated (however,
input, output and plot formats are customizable; see
<b><A HREF="gmtdefaults.html">gmtdefaults</A></b>).</p> </td></tr>
</table>
<h2>OPTIONS
<a name="OPTIONS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">No space
between the option flag and the associated arguments.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>−A</b></p></td>
<td width="8%"></td>
<td width="78%">
<p style="margin-top: 1em">By default line segments are
drawn as great circle arcs. To draw them as straight lines,
use the <b>−A</b> flag. Alternatively, add <b>m</b> to
draw the line by first following a meridian, then a
parallel. Or append <b>p</b> to start following a parallel,
then a meridian. (This can be practical to draw a lines
along parallels, for example).</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−B</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Sets map boundary annotation and tickmark intervals; see
the <b><A HREF="psbasemap.html">psbasemap</A></b> man page for all the details.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−C</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Give a color palette file. If <b>−S</b> is set,
let symbol fill color be determined by the z-value in the
third column. Additional fields are shifted over by one
column (optional size would be 4th rather than 3rd field,
etc.). If <b>−S</b> is not set, then <b>psxy</b>
expects the user to supply a multisegment line or polygon
file (requires <b>−m</b>) where each segment header
contains a <b>−Z</b><i>val</i> string. The <i>val</i>
will control the color of the line or polygon (if
<b>−L</b> is set) via the cpt file.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−D</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Offset the plot symbol or line locations by the given
amounts <i>dx/dy</i> [Default is no offset]. If <i>dy</i> is
not given it is set equal to <i>dx</i>.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−E</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Draw error bars. Append <b>x</b> and/or <b>y</b> to
indicate which bars you want to draw (Default is both x and
y). The x and/or y errors must be stored in the columns
after the (x,y) pair [or (x,y,size) triplet]. The <i>cap</i>
parameter indicates the length of the end-cap on the error
bars [0.25c (or 0.1i)]. Pen attributes for error bars may
also be set (see SPECIFYING PENS below) [Defaults: width =
0.25p, color = black, texture = solid]. A leading <b>+</b>
will use the lookup color (via <b>−C</b>) for both
symbol fill and error pen color, while a leading <b>-</b>
will set error pen color and turn off symbol fill. If upper
case <b>X</b> and/or <b>Y</b> is used we will instead draw
"box-and-whisker" (or "stem-and-leaf")
symbols. The x (or y) coordinate is then taken as the median
value, and 4 more columns are expected to contain the
minimum (0% quantile), the 25% quantile, the 75% quantile,
and the maximum (100% quantile) values. The 25-75% box may
be filled by using <b>−G</b>. If <b>n</b> is appended
to <b>X</b> (or <b>Y</b>) we draw a notched
"box-and-whisker" symbol where the notch width
reflects the uncertainty in the median. Then a 5th extra
data column is expected to contain the number of points in
the distribution.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−G</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Select color or pattern for filling of symbols or
polygons [Default is no fill]. (See SPECIFYING FILL
below).</p> </td></tr>
</table>
<p style="margin-left:22%;">Note when <b>−m</b> is
chosen, <b>psxy</b> will search for <b>−G</b> and
<b>−W</b> strings in all the subheaders and let any
values thus found over-ride the command line settings (see
<b>−m</b> below).</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p style="margin-top: 1em"><b>−H</b></p></td>
<td width="8%"></td>
<td width="78%">
<p style="margin-top: 1em">Input file(s) has header
record(s). If used, the default number of header records is
<b><A HREF="gmtdefaults.html#N_HEADER_RECS">N_HEADER_RECS</A></b>. Use <b>−Hi</b> if only input
data should have header records [Default will write out
header records if the input data have them]. Blank lines and
lines starting with # are always skipped.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−I</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Use the supplied <i>intens</i> value (nominally in the
-1 to + 1 range) to modulate the fill color by simulating
illumination [none].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−K</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>More <i>PostScript</i> code will be appended later
[Default terminates the plot system].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−L</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Force closed polygons: connect the endpoints of the
line-segment(s) and draw polygons. Also, in concert with
<b>−C</b>, <b>−m</b>, and <b>−Z</b>
settings in the headers will use the implied color for
polygon fill [Default is polygon pen color].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−N</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Do NOT skip symbols that fall outside map border
[Default plots points inside border only]. The option does
not apply to lines and polygons which are always clipped to
the map region.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−O</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Selects Overlay plot mode [Default initializes a new
plot system].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−P</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Selects Portrait plotting mode [Default is Landscape,
see <b><A HREF="gmtdefaults.html">gmtdefaults</A></b> to change this].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−S</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Plot symbols. If present, <i>size</i> is symbol size in
the unit set in .gmtdefaults4 (unless <b>c</b>, <b>i</b>,
<b>m</b>, or <b>p</b> is appended). If <i>size</i> is not
given it is expected in the third (or 4th if <b>−C</b>
is used) column. Any additional fields are shifted over by
one column. If the symbol code (see below) is not given it
will be read from the last column in the input data; this
cannot be used in conjunction with <b>−b</b>.
Optionally, append <b>c</b>, <b>i</b>, <b>m</b>, <b>p</b> to
indicate that the size information in the input data is in
units of cm, inch, meter, or point, respectively [Default is
<b><A HREF="gmtdefaults.html#MEASURE_UNIT">MEASURE_UNIT</A></b>]. Note: if you give both size and symbol
via the input file you must use <b><A HREF="gmtdefaults.html#MEASURE_UNIT">MEASURE_UNIT</A></b> to
indicate the units used for the symbol size.</p></td></tr>
</table>
<p style="margin-left:22%;">The uppercase symbols <b>A</b>,
<b>C</b>, <b>D</b>, <b>G</b>, <b>H</b>, <b>I</b>, <b>N</b>,
<b>S</b>, <b>T</b> are normalized to have the same area as a
circle with diameter <i>size</i>, while the size of the
corresponding lowercase symbols refers to the diameter of a
circumscribed circle. Choose between these symbol codes:</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em"><b>−S-</b></p></td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em">x-dash (-). <i>size</i> is the
length of a short horizontal line segment.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−S+</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>plus (+). <i>size</i> is diameter of circumscribing
circle.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sa</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>st<b>a</b>r. <i>size</i> is diameter of circumscribing
circle.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sb</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>Vertical <b>b</b>ar extending from <i>base</i> to y.
<i>size</i> is bar width. Append <b>u</b> if <i>size</i> is
in x-units [Default is plot-distance units]. By default,
<i>base</i> = ymin. Append <b>b</b><i>base</i> to change
this value.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−SB</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>Horizontal <b>b</b>ar extending from <i>base</i> to x.
<i>size</i> is bar width. Append <b>u</b> if <i>size</i> is
in y-units [Default is plot-distance units]. By default,
<i>base</i> = xmin. Append <b>b</b><i>base</i> to change
this value.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sc</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>c</b>ircle. <i>size</i> is diameter of circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sd</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>d</b>iamond. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Se</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>e</b>llipse. Direction (in degrees counter-clockwise
from horizontal), major_axis, and minor_axis must be found
in columns 3, 4, and 5.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−SE</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>Same as <b>−Se</b>, except azimuth (in degrees
east of north) should be given instead of direction. The
azimuth will be mapped into an angle based on the chosen map
projection (<b>−Se</b> leaves the directions
unchanged.) Furthermore, the axes lengths must be given in
km instead of plot-distance units. An exception occurs for a
linear projection in which we assume the ellipse axes are
given in the same units as <b>−R</b>.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sf</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>f</b>ront.
<b>−Sf</b><i>gap/size</i>[<i>dir</i>][<i>type</i>][:<i>offset</i>].
Supply distance gap between symbols and symbol size. If
<i>gap</i> is negative, it is interpreted to mean the number
of symbols along the front instead. Append <i>dir</i> to
plot symbols on the <b>l</b>eft or <b>r</b>ight side of the
front [Default is centered]. Append <i>type</i> to specify
which symbol to plot: <b>b</b>ox, <b>c</b>ircle,
<b>f</b>ault, <b>s</b>lip, or <b>t</b>riangle. [Default is
fault]. Slip means left-lateral or right-lateral strike-slip
arrows (centered is not an option). Append :<i>offset</i> to
offset the first symbol from the beginning of the front by
that amount [Default is 0].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sg</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>octa<b>g</b>on. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sh</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>h</b>exagon. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Si</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>i</b>nverted triangle. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sj</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>Rotated rectangle. Direction (in degrees
counter-clockwise from horizontal), x-dimension, and
y-dimension must be found in columns 3, 4, and 5.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−SJ</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>Same as <b>−Sj</b>, except azimuth (in degrees
east of north) should be given instead of direction. The
azimuth will be mapped into an angle based on the chosen map
projection (<b>−Sj</b> leaves the directions
unchanged.) Furthermore, the dimensions must be given in km
instead of plot-distance units. An exception occurs for a
linear projection in which we assume the dimensions are
given in the same units as <b>−R</b>.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sk</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>k</b>ustom symbol. Append <name>/<i>size</i>,
and we will look for a definition file called
<name>.def in (1) the current directory or (2) in
~/.gmt or (3) in <b>$GMT_SHAREDIR</b>/custom. The symbol as
defined in that file is of size 1.0 by default; the appended
<i>size</i> will scale symbol accordingly. Users may add
their own custom *.def files; see CUSTOM SYMBOLS below.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sl</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>l</b>etter or text string (less than 64 characters).
Give size, and append /<i>string</i> after the size. Note
that the size is only approximate; no individual scaling is
done for different characters. Remember to escape special
characters like *. Optionally, you may append %<i>font</i>
to select a particular font [Default is
<b><A HREF="gmtdefaults.html#ANNOT_FONT_PRIMARY">ANNOT_FONT_PRIMARY</A></b>].</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sm</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>m</b>ath angle arc, optionally with one or two arrow
heads. The <i>size</i> is the radius of the arc. Start and
stop directions (in degrees counter-clockwise from
horizontal) for arc must be found in columns 3 and 4. Use
<b>−Smf</b> to add arrow head at first angle,
<b>−Sml</b> for arrow head at last angle, and
<b>−Smb</b> for both [Default is no arrow heads].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sn</b></p></td>
<td width="7%"></td>
<td width="78%">
<p>pe<b>n</b>tagon. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sp</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>p</b>oint. No size needs to be specified (1 pixel is
used).</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p><b>−Sq</b></p></td>
<td width="7%"></td>
<td width="78%">
<p><b>q</b>uoted line, i.e., lines with annotations such as
contours. Append
[<b>d</b>|<b>D</b>|<b>f</b>|<b>l</b>|<b>L</b>|<b>n</b>|<b>x</b>|<b>X</b>]<i>info</i>[:<i>labelinfo</i>].
The required argument controls the placement of labels along
the quoted lines. Choose among five controlling
algorithms:</p> </td></tr>
</table>
<p style="margin-left:22%;"><b>d</b><i>dist</i>[<b>c</b>|<b>i</b>|<b>m</b>|<b>p</b>]
or
<b>D</b><i>dist</i>[<b>d</b>|<b>e</b>|<b>k</b>|<b>m</b>|<b>n</b>]</p>
<p style="margin-left:32%;">For lower case <b>d</b>, give
distances between labels on the plot in your preferred
measurement unit <b>c</b> (cm), <b>i</b> (inch), <b>m</b>
(meter), or <b>p</b> (points), while for upper case
<b>D</b>, specify distances in map units and append the
unit; choose among <b>e</b> (m), <b>k</b> (km), <b>m</b>
(mile), <b>n</b> (nautical mile), or <b>d</b> (spherical
degree). [Default is 10<b>c</b> or 4<b>i</b>].</p>
<p style="margin-left:22%;"><b>f</b><i>ffile.d</i></p>
<p style="margin-left:32%;">Reads the ascii file
<i>ffile.d</i> and places labels at locations in the file
that matches locations along the quoted lines. Inexact
matches and points outside the region are skipped.</p>
<p style="margin-left:22%;"><b>l|L</b><i>line1</i>[,<i>line2</i>,...]</p>
<p style="margin-left:32%;">Give <i>start</i> and
<i>stop</i> coordinates for one or more comma-separated
straight line segments. Labels will be placed where these
lines intersect the quoted lines. The format of each
<i>line</i> specification is <i>start/stop</i>, where
<i>start</i> and <i>stop</i> are either a specified point
<i>lon/lat</i> or a 2-character <b>XY</b> key that uses the
justification format employed in <b><A HREF="pstext.html">pstext</A></b> to indicate a
point on the map, given as [LCR][BMT]. <b><br>
L</b> will interpret the point pairs as defining great
circles [Default is straight line].</p>
<p style="margin-left:22%;"><b>n</b><i>n_label</i></p>
<p style="margin-left:32%;">Specifies the number of
equidistant labels for quoted lines line [1]. Upper case
<b>N</b> starts labeling exactly at the start of the line
[Default centers them along the line]. <b>N</b>-1 places one
justified label at start, while <b>N</b>+1 places one
justified label at the end of quoted lines. Optionally,
append /<i>min_dist</i>[c|i|m|p] to enforce that a minimum
distance separation between successive labels is
enforced.</p>
<p style="margin-left:22%;"><b>x|X</b><i>xfile.d</i></p>
<p style="margin-left:32%;">Reads the multi-segment file
<i>xfile.d</i> and places labels at the intersections
between the quoted lines and the lines in<i>xfile.d</i>.
<b>X</b> will resample the lines first along great-circle
arcs.</p>
<p style="margin-left:22%; margin-top: 1em">In addition,
you may optionally append
<b>+r</b><i>radius</i>[<b>c</b>|<b>i</b>|<b>m</b>|<b>p</b>]
to set a minimum label separation in the x-y plane [no
limitation].</p>
<p style="margin-left:22%; margin-top: 1em">The optional
<i>labelinfo</i> controls the specifics of the label
formatting and consists of a concatenated string made up of
any of the following control arguments: <b><br>
+a</b><i>angle</i></p>
<p style="margin-left:32%;">For annotations at a fixed
angle, <b>+an</b> for line-normal, or <b>+ap</b> for
line-parallel [Default].</p>
<p style="margin-left:22%;"><b>+c</b><i>dx</i>[/<i>dy</i>]</p>
<p style="margin-left:32%;">Sets the clearance between
label and optional text box. Append <b>c|i|m|p</b> to
specify the unit or % to indicate a percentage of the label
font size [15%].</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+d</b></p></td>
<td width="1%"></td>
<td width="68%">
<p>Turns on debug which will draw helper points and lines
to illustrate the workings of the quoted line setup.</p></td></tr>
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+f</b><i>font</i></p></td>
<td width="1%"></td>
<td width="68%">
<p>Sets the desired font [Default
<b><A HREF="gmtdefaults.html#ANNOT_FONT_PRIMARY">ANNOT_FONT_PRIMARY</A></b>].</p> </td></tr>
</table>
<p style="margin-left:22%;"><b>+g</b>[<i>color</i>]</p>
<p style="margin-left:32%;">Selects opaque text boxes
[Default is transparent]; optionally specify the color
[Default is <b><A HREF="gmtdefaults.html#PAGE_COLOR">PAGE_COLOR</A></b>]. (See SPECIFYING COLOR
below).</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+j</b><i>just</i></p></td>
<td width="1%"></td>
<td width="68%">
<p>Sets label justification [Default is MC]. Ignored when
-SqN|n+|-1 is used.</p></td></tr>
</table>
<p style="margin-left:22%;"><b>+k</b><i>color</i></p>
<p style="margin-left:32%;">Sets color of text labels
[Default is <b><A HREF="gmtdefaults.html#COLOR_BACKGROUND">COLOR_BACKGROUND</A></b>]. (See SPECIFYING COLOR
below).</p>
<p style="margin-left:22%;"><b>+l</b><i>label</i></p>
<p style="margin-left:32%;">Sets the constant label
text.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+L</b><i>flag</i></p></td>
<td width="1%"></td>
<td width="68%">
<p>Sets the label text according to the specified flag:</p></td></tr>
</table>
<p style="margin-left:32%;"><b>+Lh</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="32%"></td>
<td width="5%"></td>
<td width="6%"></td>
<td width="57%">
<p style="margin-top: 1em">Take the label from the current
multisegment header (first scan for an embedded
<b>−L</b><i>label</i> option, if not use the first
word following the segment flag). For multiple-word labels,
enclose entire label in double quotes.</p></td></tr>
<tr valign="top" align="left">
<td width="32%"></td>
<td width="5%">
<p><b>+Ld</b></p></td>
<td width="6%"></td>
<td width="57%">
<p>Take the Cartesian plot distances along the line as the
label; append <b>c|i|m|p</b> as the unit [Default is
<b><A HREF="gmtdefaults.html#MEASURE_UNIT">MEASURE_UNIT</A></b>].</p> </td></tr>
<tr valign="top" align="left">
<td width="32%"></td>
<td width="5%">
<p><b>+LD</b></p></td>
<td width="6%"></td>
<td width="57%">
<p>Calculate actual map distances; append <b>d|e|k|m|n</b>
as the unit [Default is <b>d</b>(egrees), unless label
placement was based on map distances along the lines in
which case we use the same unit specified for that
algorithm]. Requires a map projection to be used.</p></td></tr>
<tr valign="top" align="left">
<td width="32%"></td>
<td width="5%">
<p><b>+Lf</b></p></td>
<td width="6%"></td>
<td width="57%">
<p>Use text after the 2nd column in the fixed label
location file as the label. Requires the fixed label
location setting.</p></td></tr>
<tr valign="top" align="left">
<td width="32%"></td>
<td width="5%">
<p><b>+Lx</b></p></td>
<td width="6%"></td>
<td width="57%">
<p>As <b>+Lh</b> but use the headers in the <i>xfile.d</i>
instead. Requires the crossing file option.</p></td></tr>
</table>
<p style="margin-left:22%;"><b>+n</b><i>dx</i>[/<i>dy</i>]</p>
<p style="margin-left:32%;">Nudges the placement of labels
by the specified amount (append <b>c|i|m|p</b> to specify
the units). Increments are considered in the coordinate
system defined by the orientation of the line; use <b>+N</b>
to force increments in the plot x/y coordinates system [no
nudging].</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="22%"></td>
<td width="3%">
<p><b>+o</b></p></td>
<td width="7%"></td>
<td width="68%">
<p>Selects rounded rectangular text box [Default is
rectangular]. Not applicable for curved text (<b>+v</b>) and
only makes sense for opaque text boxes.</p></td></tr>
</table>
<p style="margin-left:22%;"><b>+p</b>[<i>pen</i>]</p>
<p style="margin-left:32%;">Draws the outline of text
boxsets [Default is no outline]; optionally specify pen for
outline [Default is width = 0.25p, color = black, texture =
solid]. (See SPECIFYING PENS below).</p>
<p style="margin-left:22%;"><b>+r</b><i>min_rad</i></p>
<p style="margin-left:32%;">Will not place labels where the
line’s radius of curvature is less than <i>min_rad</i>
[Default is 0].</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+s</b><i>size</i></p></td>
<td width="1%"></td>
<td width="68%">
<p>Sets the desired font size in points [Default is 9].</p></td></tr>
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+u</b><i>unit</i></p></td>
<td width="1%"></td>
<td width="68%">
<p>Appends <i>unit</i> to all line labels. If <i>unit</i>
starts with a leading hyphen (-) then there will be no space
between label value and the unit. [Default is no unit].</p></td></tr>
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+v</b></p></td>
<td width="1%"></td>
<td width="68%">
<p>Specifies curved labels following the path [Default is
straight labels].</p></td></tr>
<tr valign="top" align="left">
<td width="22%"></td>
<td width="9%">
<p><b>+w</b></p></td>
<td width="1%"></td>
<td width="68%">
<p>Specifies how many (<i>x, y</i>) points will be used to
estimate label angles [Default is 10].</p></td></tr>
</table>
<p style="margin-left:22%;"><b>+=</b><i>prefix</i></p>
<p style="margin-left:32%;">Prepends <i>prefix</i> to all
line labels. If <i>prefix</i> starts with a leading hyphen
(-) then there will be no space between label value and the
prefix. [Default is no prefix].</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Sr</b></p></td>
<td width="4%"></td>
<td width="78%">
<p><b>r</b>ectangle. No size needs to be specified, but the
x- and y-dimensions must be found in columns 3 and 4.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Ss</b></p></td>
<td width="4%"></td>
<td width="78%">
<p><b>s</b>quare. <i>size</i> is diameter of circumscribing
circle.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−St</b></p></td>
<td width="4%"></td>
<td width="78%">
<p><b>t</b>riangle. <i>size</i> is diameter of
circumscribing circle.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Sv</b></p></td>
<td width="4%"></td>
<td width="78%">
<p><b>v</b>ector. Direction (in degrees counter-clockwise
from horizontal) and length must be found in columns 3 and
4. <i>size</i>, if present, will be interpreted as
<i>arrowwidth/headlength/headwidth</i> [Default unit is
0.075<b>c</b>/0.3<b>c</b>/0.25<b>c</b> (or
0.03<b>i</b>/0.12<b>i</b>/0.1<b>i</b>)]. By default arrow
attributes remains invariant to the length of the arrow. To
have the size of the vector scale down with decreasing size,
append <b>n</b><i>norm</i>, where vectors shorter than
<i>norm</i> will have their attributes scaled by
length/<i>norm</i>. To center vector on balance point, use
<b>−Svb</b>; to align point with the vector head, use
<b>−Svh</b>; to align point with the vector tail, use
<b>−Svt</b> [Default]. To give the head point’s
coordinates instead of direction and length, use
<b>−Svs</b>. Upper case <b>B, H, T, S</b> will draw a
double-headed vector [Default is single head].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−SV</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Same as <b>−Sv</b>, except azimuth (in degrees
east of north) should be given instead of direction. The
azimuth will be mapped into an angle based on the chosen map
projection (<b>−Sv</b> leaves the directions
unchanged.)</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Sw</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>pie <b>w</b>edge. Start and stop directions (in degrees
counter-clockwise from horizontal) for pie slice must be
found in columns 3 and 4.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−SW</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Same as <b>−Sw</b>, except azimuths (in degrees
east of north) should be given instead of the two
directions. The azimuths will be mapped into angles based on
the chosen map projection (<b>−Sw</b> leaves the
directions unchanged.)</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Sx</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>cross (x). <i>size</i> is diameter of circumscribing
circle.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−Sy</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>y-dash (|). <i>size</i> is the length of a short
vertical line segment.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−T</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Ignore all input files, including standard input. This
is the same as specifying /dev/null (or NUL for Windows
users) as input file. Use this to activate only the options
that are not related to plotting of lines or symbols, such
as <b>psxy −R −J −O −T</b> to
terminate a sequence of <b><A HREF="GMT.html">GMT</A></b> plotting commands without
producing any plotting output.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−U</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Draw Unix System time stamp on plot. By adding
<i>just/dx/dy/</i>, the user may specify the justification
of the stamp and where the stamp should fall on the page
relative to lower left corner of the plot. For example,
BL/0/0 will align the lower left corner of the time stamp
with the lower left corner of the plot. Optionally, append a
<i>label</i>, or <b>c</b> (which will plot the command
string.). The <b><A HREF="GMT.html">GMT</A></b> parameters <b><A HREF="gmtdefaults.html#UNIX_TIME">UNIX_TIME</A></b>,
<b><A HREF="gmtdefaults.html#UNIX_TIME_POS">UNIX_TIME_POS</A></b>, and <b><A HREF="gmtdefaults.html#UNIX_TIME_FORMAT">UNIX_TIME_FORMAT</A></b> can affect
the appearance; see the <b><A HREF="gmtdefaults.html">gmtdefaults</A></b> man page for
details. The time string will be in the locale set by the
environment variable <b>TZ</b> (generally local time).</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−V</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Selects verbose mode, which will send progress reports
to stderr [Default runs "silently"].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−W</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Set pen attributes for lines or the outline of symbols
[Defaults: width = 0.25p, color = black, texture = solid]. A
leading <b>+</b> will use the lookup color (via
<b>−C</b>) for both symbol fill and outline pen color,
while a leading <b>-</b> will set outline pen color and turn
off symbol fill. (See SPECIFYING PENS below).</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−X −Y</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Shift plot origin relative to the current origin by
(<i>x-shift,y-shift</i>) and optionally append the length
unit (<b>c</b>, <b>i</b>, <b>m</b>, <b>p</b>). You can
prepend <b>a</b> to shift the origin back to the original
position after plotting, or prepend <b>r</b> [Default] to
reset the current origin to the new location. If
<b>−O</b> is used then the default
(<i>x-shift,y-shift</i>) is (0,0), otherwise it is (r1i,
r1i) or (r2.5c, r2.5c). Alternatively, give <b>c</b> to
align the center coordinate (x or y) of the plot with the
center of the page based on current page size.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−:</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Toggles between (longitude,latitude) and
(latitude,longitude) input and/or output. [Default is
(longitude,latitude)]. Append <b>i</b> to select input only
or <b>o</b> to select output only. [Default affects
both].</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−bi</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Selects binary input. Append <b>s</b> for single
precision [Default is <b>d</b> (double)]. Uppercase <b>S</b>
or <b>D</b> will force byte-swapping. Optionally, append
<i>ncol</i>, the number of columns in your binary input file
if it exceeds the columns needed by the program. Or append
<b>c</b> if the input file is netCDF. Optionally, append
<i>var1</i><b>/</b><i>var2</i><b>/</b><i>...</i> to specify
the variables to be read. [Default is the required number of
columns given the chosen settings].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−c</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Specifies the number of plot copies. [Default is 1].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−f</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Special formatting of input and/or output columns (time
or geographical data). Specify <b>i</b> or <b>o</b> to make
this apply only to input or output [Default applies to
both]. Give one or more columns (or column ranges) separated
by commas. Append <b>T</b> (absolute calendar time),
<b>t</b> (relative time in chosen <b><A HREF="gmtdefaults.html#TIME_UNIT">TIME_UNIT</A></b> since
<b><A HREF="gmtdefaults.html#TIME_EPOCH">TIME_EPOCH</A></b>), <b>x</b> (longitude), <b>y</b>
(latitude), or <b>f</b> (floating point) to each column or
column range item. Shorthand
<b>−f</b>[<b>i</b>|<b>o</b>]<b>g</b> means
<b>−f</b>[<b>i</b>|<b>o</b>]0<b>x</b>,1<b>y</b>
(geographic coordinates).</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−g</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Examine the spacing between consecutive data points in
order to impose breaks in the line. Append <b>x</b>|<b>X</b>
or <b>y</b>|<b>Y</b> to define a gap when there is a large
enough change in the x or y coordinates, respectively, or
<b>d</b>|<b>D</b> for distance gaps; use upper case to
calculate gaps from projected coordinates. For gap-testing
on other columns use [<i>col</i>]<b>z</b>; if <i>col</i> is
not prepended the it defaults to 2 (i.e., 3rd column).
Append [+|-]<i>gap</i> and optionally a unit <b>u</b>.
Regarding optional signs: -ve means previous minus current
column value must exceed |<i>gap</i> to be a gap, +ve means
current minus previous column value must exceed <i>gap</i>,
and no sign means the absolute value of the difference must
exceed <i>gap</i>. For geographic data
(<b>x</b>|<b>y</b>|<b>d</b>), the unit <b>u</b> may be
m<b>e</b>ter [Default], <b>k</b>ilometer, <b>m</b>iles, or
<b>n</b>autical miles. For projected data
(<b>X</b>|<b>Y</b>|<b>D</b>), choose from <b>i</b>nch,
<b>c</b>entimeter, <b>m</b>eter, or <b>p</b>oints [Default
unit set by MEASURE_UNIT]. Note: For
<b>x</b>|<b>y</b>|<b>z</b> with time data the unit is
instead controlled by TIME_UNIT. Repeat the option to
specify multiple criteria, of which any can be met to
produce a line break. Issue an additional <b>−ga</b>
to indicate that all criteria must be met instead. The
<b>−g</b> option is ignored if <b>−S</b> is
set.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p><b>−m</b></p></td>
<td width="4%"></td>
<td width="78%">
<p>Multiple segment file. Segments are separated by a
record whose first character is <i>flag</i> [Default is
’>’]. On these segment header records one or
more of the following options can be added:</p></td></tr>
</table>
<p style="margin-left:22%;"><b>−G</b><i>fill</i> Use
the new <i>fill</i> and turn filling on <b><br>
−G-</b> Turn filling off <b><br>
−G+</b> Revert to default fill (none if not set on
command line) <b><br>
−W</b><i>pen</i> Use the new <i>pen</i> and turn
outline on <b><br>
−W-</b> Turn outline off <b><br>
−W+</b> Revert to default pen (none if not set on
command line) <b><br>
−Z</b><i>zval</i> Obtain fill via cpt lookup using
z-value <i>zval</i> <b><br>
−ZNaN</b> Get the NaN color from the cpt file</p>
<p style="margin-left:11%; margin-top: 1em"><b>SPECIFYING
PENS</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="4%">
<p style="margin-top: 1em"><i>pen</i></p></td>
<td width="7%"></td>
<td width="78%">
<p style="margin-top: 1em">The attributes of lines and
symbol outlines as defined by <i>pen</i> is a comma
delimetered list of <i>width</i>, <i>color</i> and
<i>texture</i>, each of which is optional. <i>width</i> can
be indicated as a measure (points, centimeters, inches) or
as <b>faint</b>, <b>thin</b>[<b>ner</b>|<b>nest</b>],
<b>thick</b>[<b>er</b>|<b>est</b>],
<b>fat</b>[<b>ter</b>|<b>test</b>], or <b>obese</b>.
<i>color</i> specifies a gray shade or color (see SPECIFYING
COLOR below). <i>texture</i> is a combination of dashes
‘-’ and dots ‘.’.</p></td></tr>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>SPECIFYING
FILL</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="6%">
<p style="margin-top: 1em"><i>fill</i></p></td>
<td width="5%"></td>
<td width="78%">
<p style="margin-top: 1em">The attribute <i>fill</i>
specifies the solid shade or solid <i>color</i> (see
SPECIFYING COLOR below) or the pattern used for filling
polygons. Patterns are specified as
<b>p</b><i>dpi/pattern</i>, where <i>pattern</i> gives the
number of the built-in pattern (1-90) <i>or</i> the name of
a Sun 1-, 8-, or 24-bit raster file. The <i>dpi</i> sets the
resolution of the image. For 1-bit rasters: use
<b>P</b><i>dpi/pattern</i> for inverse video, or append
<b>:F</b><i>color</i>[<b>B</b>[<i>color</i>]] to specify
fore- and background colors (use <i>color</i> = - for
transparency). See <b><A HREF="GMT.html">GMT</A></b> Cookbook & Technical
Reference Appendix E for information on individual
patterns.</p> </td></tr>
</table>
<p style="margin-left:11%; margin-top: 1em"><b>SPECIFYING
COLOR</b></p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="7%">
<p style="margin-top: 1em"><i>color</i></p></td>
<td width="4%"></td>
<td width="78%">
<p style="margin-top: 1em">The <i>color</i> of lines, areas
and patterns can be specified by a valid color name; by a
gray shade (in the range 0−255); by a decimal color
code (r/g/b, each in range 0−255; h-s-v, ranges
0−360, 0−1, 0−1; or c/m/y/k, each in range
0−1); or by a hexadecimal color code (#rrggbb, as used
in HTML). See the <b><A HREF="gmtcolors.html">gmtcolors</A></b> manpage for more
information and a full list of color names.</p></td></tr>
</table>
<h2>EXAMPLES
<a name="EXAMPLES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">To plot solid
red circles (diameter = 0.25 cm) at the positions listed in
the file DSDP.xy on a Mercator map at 5 cm/degree of the
area 150E to 154E, 18N to 23N, with tickmarks every 1 degree
and gridlines every 15 minutes, use</p>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
DSDP.xy <b>−R</b> 150/154/18/23 <b>−Jm</b> 5<b>c
−Sc</b>0.25<b>c −G</b> red <b>−B</b>
1<b>g</b>15<b>m</b> | lpr</p>
<p style="margin-left:11%; margin-top: 1em">To plot the xyz
values in the file quakes.xyzm as circles with size given by
the magnitude in the 4th column and color based on the depth
in the third using the color palette cpt on a linear map,
use</p>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
quakes.xyzm <b>−R</b> 0/1000/0/1000 <b>−JX</b>
6<b>i −Sc −C</b> cpt <b>−B</b> 200 >
map.ps</p>
<p style="margin-left:11%; margin-top: 1em">To plot the
file trench.xy on a Mercator map, with white triangles with
sides 0.25 inch on the left side of the line, spaced every
0.8 inch, use</p>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
trench.xy <b>−R</b> 150/200/20/50 <b>−Jm</b>
0.15<b>i −Sf</b>0.8<b>i</b>/0.1<b>ilt −G</b>
white <b>−W −B</b> 10 | lpr br</p>
<p style="margin-left:11%; margin-top: 1em">To plot the
data in the file misc.d as symbols determined by the code in
the last column, and with size given by the magnitude in the
4th column, and color based on the third column via the
color palette cpt on a linear map, use</p>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b>
misc.d <b>−R</b> 0/100/-50/100 <b>−JX</b> 6<b>i
−S −C</b> cpt <b>−B</b> 20 > t.ps</p>
<h2>CUSTOM SYMBOLS
<a name="CUSTOM SYMBOLS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>psxy</b> and
<b><A HREF="psxyz.html">psxyz</A></b> allows users to define and plot their own
custom symbols. This is done by encoding the symbol using a
simple plotting code described below. Put all the plotting
codes for your new symbol in a file whose extension must be
.def; you may then address the symbol without giving the
extension (e.g., the symbol file tsunami.def is used by
specifying <b>−Sk</b><i>tsunami/size</i>. The
definition file can contain any number of plot code records,
as well as blank lines and comment lines (starting with #).
<b>psxy</b> and <b><A HREF="psxyz.html">psxyz</A></b> will look for the definition
files in (1) the current directory, (2) the ~/.gmt
directory, and (3) the <b>$GMT_SHAREDIR</b>/custom
directory, in that order. Freeform polygons (made up of
straight line segments and arcs of circles) can be designed
- these polygons can be painted and filled with a pattern.
Other standard geometric symbols can also be used. Generate
freeform polygons by starting with an anchor point (append [
<b>−W</b><i>pen</i> ] and [ <b>−G</b><i>fill</i>
] to indicate pen and fill attributes): <i><br>
x0 y0</i> <b>M</b> <br>
and draw a straight line from the current point to the next
point with <i><br>
x y</i> <b>D</b> <br>
or add an arc by using <i><br>
xc yc r dir1 dir2</i> <b>A</b> <br>
When a record other than the <b>D</b> or <b>A</b> is
encountered, the polygon is closed and considered complete.
The optional pen and fill setting hardwires particular
values for this feature. If not present the polygon’s
characteristics are determined by the command line settings
for pen and fill. To deactivate fill or outline for any
given polygon, give <b>−G−</b> or
<b>−W−</b>. To add other geometric shapes to
your custom symbol, add any number of the following plot
code records (each accepts the optional [
<b>−W</b><i>pen</i> ] and [ <b>−G</b><i>fill</i>
] at the end):</p>
<p style="margin-left:11%; margin-top: 1em">circle: <i>x y
size</i> <b>c</b> <br>
cross: <i>x y size</i> <b>x</b> <br>
diamond: <i>x y size</i> <b>d</b> <br>
ellipse: <i>x y dir major minor</i> <b>e</b> <br>
hexagon: <i>x y size</i> <b>h</b> <br>
invtriangle: <i>x y size</i> <b>i</b> <br>
letter: <i>x y size string</i> <b>l</b> <br>
octagon: <i>x y size</i> <b>g</b> <br>
pentagon: <i>x y size</i> <b>n</b> <br>
plus: <i>x y size</i> <b>+</b> <br>
rect: <i>x y xwidth ywidth</i> <b>r</b> <br>
square: <i>x y size</i> <b>s</b> <br>
star: <i>x y size</i> <b>a</b> <br>
triangle: <i>x y size</i> <b>t</b> <br>
wedge: <i>x y radius dir1 dir2</i> <b>w</b> <br>
x-dash: <i>x y size</i> <b>-</b> <br>
y-dash: <i>x y size</i> <b>y</b></p>
<p style="margin-left:11%; margin-top: 1em">When designing
your symbol, the <i>x, y</i> and other dimensions are
relative to a symbol of size 1, and all the dimensions will
be scaled by the actual symbol size chosen at run-time. To
design a symbol, make a grid paper with <b>psbasemap
−R</b>-0.5/0.5/-0.5/0.5 <b>−JX</b> 4<b>i
−Ba</b> 0.1g0.05 <b>−P</b> > grid.ps and draw
your symbol, centering it on (0,0). For examples of symbols,
see the set supplied with <b><A HREF="GMT.html">GMT</A></b> in
<b>$GMT_SHAREDIR</b>/custom.</p>
<h2>BUGS
<a name="BUGS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">The
<b>−N</b> option does not adjust the BoundingBox
information so you may have to post-process the
<i>PostScript</i> output with <b>ps2raster -A</b> to obtain
the correct BoundingBox. <b><br>
psxy</b> cannot handle filling of polygons that contain the
south or north pole. For such a polygon, make a copy and
split it into two and make each explicitly contain the polar
point. The two polygons will combine to give the desired
effect when filled; to draw outline use the original
polygon.</p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><i><A HREF="GMT.html">GMT</A></i>(1),
<i><A HREF="gmtcolors.html">gmtcolors</A></i>(5), <i><A HREF="psbasemap.html">psbasemap</A></i>(1),
<i><A HREF="psxyz.html">psxyz</A></i>(1)</p>
<hr>
</body>
</html>
|