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141 lines
3.8 KiB
141 lines
3.8 KiB
/**********
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Copyright 1990 Regents of the University of California. All rights reserved.
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Author: 1988 Jeffrey M. Hsu
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**********/
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/*
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This file contains the graph structure.
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*/
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#ifndef ngspice_GRAPH_H
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#define ngspice_GRAPH_H
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#include "ngspice/typedefs.h"
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#include "ngspice/grid.h"
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#include "ngspice/plot.h"
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#include "ngspice/dvec.h" /* for struct dvec */
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struct _keyed;
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#define GRAPH_UNITS_LENGTH 20
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/* Device-independent data structure for plots. */
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struct graph {
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int graphid;
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struct dveclist *plotdata; /* normalized data */
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char *plotname; /* name of plot this graph is in */
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int onevalue; /* boolean variable,
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true if plotting one value
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against itself (real vs imaginary) */
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int degree; /* degree of polynomial interpretation */
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int currentcolor;
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int linestyle;
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bool nolegend;
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struct {
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int height, width;
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} viewport;
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int viewportxoff; /* x offset of viewport w/in graph */
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int viewportyoff; /* y offset of viewport w/in graph */
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struct {
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int xpos; /* x position of graph in screen coord */
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int ypos; /* y position of graph in screen coord */
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int width; /* width of window on screen */
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int height; /* height of window on screen */
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} absolute;
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struct {
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double xmin, ymin, xmax, ymax;
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} data;
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struct {
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double xmin, ymin, xmax, ymax;
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/* cache: width = xmax - xmin height = ymax - ymin */
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double width, height;
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} datawindow;
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/* cache (datawindow size) / (viewport size) */
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double aspectratiox, aspectratioy;
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int ticmarks; /* mark every ticmark'th point */
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double *ticdata;
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char ticchar[2];
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int fontwidth, fontheight; /* for use in grid */
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PLOTTYPE plottype; /* defined in FTEconstant.h */
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struct {
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GRIDTYPE gridtype; /* defined in FTEconstant.h */
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int circular; /* TRUE if circular plot area */
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union {
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struct {
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char units[GRAPH_UNITS_LENGTH]; /* unit labels */
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int spacing, numspace;
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double distance, lowlimit, highlimit;
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int mult;
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int onedec; /* a boolean */
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int hacked; /* true if hi - lo already hacked up */
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double tenpowmag;
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double tenpowmagx;
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int digits;
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} lin;
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struct {
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char units[GRAPH_UNITS_LENGTH]; /* unit labels */
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int hmt, lmt, decsp, subs, pp;
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} log;
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struct {
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char units[GRAPH_UNITS_LENGTH]; /* unit labels */
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int radius, center;
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double mrad;
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int lmt;
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int hmt, mag; /* added, p.w.h. */
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} circular; /* bogus, rework when write polar grids, etc */
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} xaxis, yaxis;
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int xdatatype, ydatatype;
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int xsized, ysized;
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double xdelta, ydelta; /* if non-zero, user-specified deltas */
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char *xlabel, *ylabel;
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} grid;
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/* characters the user typed on graph */
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/* note: think up better names */
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struct _keyed *keyed;
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/* for zoomin */
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char *commandline;
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/* colors used */
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unsigned long colorarray[25];
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/* we have a mother graph */
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int mgraphid;
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/* linewidths */
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int graphwidth;
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int gridwidth;
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/* Space here is allocated by NewViewport
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and de-allocated by DestroyGraph.
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*/
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void *devdep;
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size_t n_byte_devdep; /* Size of devdep. Needed to allow copying */
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};
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/* characters the user typed on graph */
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/* note: think up better names */
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struct _keyed {
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char *text;
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int x, y;
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int colorindex; /* index into colors array */
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struct _keyed *next;
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};
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#define rnd(x) (int) ((x)+0.5)
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#endif
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