73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/* $Id: metadefs.h,v 1.1 2004/03/01 20:54:50 cozmic Exp $
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Geoffrey Furnish
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5 May 1991
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This file contains definitions of constants and structures which
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are needed by the PLplot metafile writer and renderer.
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*/
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/*
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* PLMETA_HEADER holds the magic string at head of metafile.
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* PLMETA_VERSION holds the version number (year & letter).
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*
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* Note: All strings written into the file header are limited to a maximum
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* of 80 characters.
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*/
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#define PLMETA_HEADER "PLPLOT"
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#define PLMETA_VERSION "1993c"
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/* These are used by the TK driver client/server code */
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#define PLSERV_HEADER "PLPLOT"
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#define PLSERV_VERSION "1993b"
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/* Symbolic constants for old metafile versions (prior to 1992a). */
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/* Now these are stored in the metafile header. */
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#define PLMETA_X_OLD 10000
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#define PLMETA_Y_OLD 10000
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/* Virtual dots/mm for our virtual display space. */
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#define PIXEL_RES_X_OLD 42
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#define PIXEL_RES_Y_OLD 56
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/* Macros to make it easier to abort on nonzero return code */
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/* Can't call plexit on a write failure since that would be circular */
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#define plm_wr(code) \
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if (code) { fprintf(stderr, "Unable to write to MetaFile\n"); exit(1); }
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#define plm_rd(code) \
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if (code) plexit( "Unable to read from MetaFile" )
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/*
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Metafile commands.
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*** NOTICE !!! ***
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If you change ANY of the following, you will wreck backward
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backward compatibility with old metafiles. You may add, but do
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NOT delete !!!
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*/
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#define INITIALIZE 1
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#define CLOSE 2
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#define SWITCH_TO_TEXT 3 /* Obsolete, replaced by ESCAPE */
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#define SWITCH_TO_GRAPH 4 /* Obsolete, replaced by ESCAPE */
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#define EOP 5
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#define BOP 6
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#define NEW_COLOR 7 /* Obsolete, replaced by CHANGE_STATE */
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#define NEW_WIDTH 8 /* Obsolete, replaced by CHANGE_STATE */
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#define LINE 9
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#define LINETO 10
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#define ESCAPE 11
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#define ADVANCE 12 /* Obsolete, BOP/EOP used instead */
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#define POLYLINE 13
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#define NEW_COLOR0 NEW_COLOR
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#define NEW_COLOR1 14
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#define CHANGE_STATE 15
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#define BOP0 16 /* First BOP in a file */
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#define END_OF_FIELD 255
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