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/* xsscatterplot - XLISP interface to IVIEW dynamic graphics package. */
/* XLISP-STAT 2.1 Copyright (c) 1990, by Luke Tierney */
/* Additions to Xlisp 2.1, Copyright (c) 1989 by David Michael Betz */
/* You may give out copies of this software; for conditions see the */
/* file COPYING included with this distribution. */
#include "xlisp.h"
#include "xlstat.h"
/* external variables */
extern LVAL sk_draw, sk_resize, sk_redraw, s_true;
extern LVAL s_scale_type;
static VOID adjust_variable P4C(IVIEW_WINDOW, w, int, var, int *, ticks, int *, labeled)
{
double low, high;
char *label;
IViewGetRange(w, var, &low, &high);
GetNiceRange(&low, &high, ticks);
IViewSetRange(w, var, low, high);
label = IViewVariableLabel(w, var);
*labeled = (label != NULL && strlen(label) != 0) ? TRUE : FALSE;
}
LVAL iview_plot2d_adjust_to_data(V)
{
LVAL object;
IVIEW_WINDOW w;
StGWWinInfo *gwinfo;
int x, y, ticks, labeled, scaled;
LVAL arg;
object = xlgaobject();
w = (IVIEW_WINDOW) GETIVIEWADDRESS(object);
gwinfo = StGWObWinInfo(object);
if (! IVIEW_WINDOW_NULL(w)) {
scaled = (slot_value(object, s_scale_type) != NIL) ? TRUE : FALSE;
StGrGetContentVariables(gwinfo, &x, &y);
StGrObAdjustToData(object, FALSE);
ticks = 4;
if (! scaled) adjust_variable(w, x, &ticks, &labeled);
IViewSetXaxis(w, ! scaled, labeled, ticks);
ticks = 4;
if (! scaled) adjust_variable(w, y, &ticks, &labeled);
IViewSetYaxis(w, ! scaled, labeled, ticks);
if (! xlgetkeyarg(sk_draw, &arg)) arg = s_true;
if (arg != NIL) send_message(object, sk_resize);
if (arg != NIL) send_message(object, sk_redraw);
}
return(NIL);
}
static LVAL plot2d_add_data P1C(int, which)
{
IVIEW_WINDOW w;
int old_n = 0, n = 0;
LVAL x, y, data, object;
object = xlgaobject();
w = (IVIEW_WINDOW) GETIVIEWADDRESS(object);
if (IVIEW_WINDOW_NULL(w)) return(NIL);
xlsave1(data);
x = xlgetarg();
if (fixp(x) || (consp(x) && seqp(car(x)))) data = x;
else {
y = xlgetarg();
data = list2(x, y);
}
switch (which) {
case 'P':
old_n = IViewNumPoints(w);
internal_iview_add_points(w, object, data);
n = IViewNumPoints(w);
break;
case 'L':
old_n = IViewNumLines(w);
internal_iview_add_lines(w, object, data);
n = IViewNumLines(w);
break;
#ifdef USESTRINGS
case 'S':
old_n = IViewNumStrings(w);
internal_iview_add_strings(w, object, data);
n = IViewNumStrings(w);
break;
#endif /* USESTRINGS */
}
xlpop();
check_add_to_screen(object, which, old_n, n, FALSE);
return(NIL);
}
LVAL iview_plot2d_add_points(V) { return(plot2d_add_data('P')); }
LVAL iview_plot2d_add_lines(V) { return(plot2d_add_data('L')); }
#ifdef USESTRINGS
LVAL iview_plot2d_add_strings(V) { return(plot2d_add_data('S')); }
#endif /* USESTRINGS */
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