void update_all(int gno)
{
update_set_lists(gno);
update_world(gno);
update_view(gno);
update_status(gno, cur_statusitem, -1);
update_ticks(gno);
update_autos(gno);
updatelegends(gno);
updatesymbols(gno, -1);
update_label_proc();
update_locator_items(gno);
update_draw();
update_frame_items(gno);
update_graph_items();
update_hotlinks();
}
static int leval_aac_cb(void *data)
{
int i, nscols, type;
double start, stop;
int npts;
char *formula[MAX_SET_COLS];
Quark *pset, *gr;
GVar *t;
Leval_ui *ui = (Leval_ui *) data;
Grace *grace;
gr = ui->gr;
type = GetOptionChoice(ui->set_type);
nscols = settype_cols(type);
if (xv_evalexpr(ui->start, &start) != RETURN_SUCCESS) {
errmsg("Start item undefined");
return RETURN_FAILURE;
}
if (xv_evalexpr(ui->stop, &stop) != RETURN_SUCCESS) {
errmsg("Stop item undefined");
return RETURN_FAILURE;
}
if (xv_evalexpri(ui->npts, &npts) != RETURN_SUCCESS) {
errmsg("Number of points undefined");
return RETURN_FAILURE;
}
TableCommitEdit(ui->mw, FALSE);
for (i = 0; i < nscols; i++) {
formula[i] = TableGetCell(ui->mw, i, 0);
}
pset = gapp_set_new(gr);
set_set_type(pset, type);
grace = grace_from_quark(pset);
t = graal_get_var(grace_get_graal(grace), "$t", TRUE);
if (t == NULL) {
errmsg("Internal error");
return RETURN_FAILURE;
}
#if 0
if (t->length != 0) {
xfree(t->data);
t->length = 0;
}
t->data = allocate_mesh(start, stop, npts);
if (t->data == NULL) {
return RETURN_FAILURE;
}
t->length = npts;
if (set_set_length(pset, npts) != RETURN_SUCCESS) {
quark_free(pset);
XCFREE(t->data);
t->length = 0;
return RETURN_FAILURE;
}
#endif
for (i = 0; i < nscols; i++) {
char buf[32], *expr;
int res;
/* preparing the expression */
sprintf(buf, "%s = ", dataset_col_name(grace, i));
expr = copy_string(NULL, buf);
expr = concat_strings(expr, formula[i]);
/* evaluate the expression */
res = graal_parse_line(grace_get_graal(grace), expr, NULL);
xfree(expr);
if (res != RETURN_SUCCESS) {
quark_free(pset);
return RETURN_FAILURE;
}
}
#if 0
XCFREE(t->data);
t->length = 0;
#endif
update_set_lists(gr);
return RETURN_SUCCESS;
}
/* ARGSUSED */
static void do_nonl_proc(Widget w, XtPointer client_data, XtPointer call_data)
{
int i, npts = 0, info;
double delx, *xfit, *y, *yfit;
int nsteps = (int) client_data;
set_wait_cursor();
curset = nlsetno = GetSelectedSet(nonl_set_item);
if (curset == SET_SELECT_ERROR) {
errmsg("No set selected");
unset_wait_cursor();
return;
}
nonl_opts.tolerance = atof((char *) xv_getstr(nonl_tol_item));
nonl_opts.parnum = GetChoice(nonl_nparm_item);
strcpy(nonl_opts.formula, (char *) xv_getstr(nonl_formula_item));
for (i = 0; i < nonl_opts.parnum; i++) {
strcpy(buf, (char *) xv_getstr(nonl_value_item[i]));
if (sscanf(buf, "%lf", &nonl_parms[i].value) != 1) {
errmsg("Invalid input in parameter field");
unset_wait_cursor();
return;
}
nonl_parms[i].constr = XmToggleButtonGetState(nonl_constr_item[i]);
if (nonl_parms[i].constr) {
strcpy(buf, (char *) xv_getstr(nonl_lowb_item[i]));
if (sscanf(buf, "%lf", &nonl_parms[i].min) != 1) {
errmsg("Invalid input in low-bound field");
unset_wait_cursor();
return;
}
strcpy(buf, (char *) xv_getstr(nonl_uppb_item[i]));
if (sscanf(buf, "%lf", &nonl_parms[i].max) != 1) {
errmsg("Invalid input in upper-bound field");
unset_wait_cursor();
return;
}
if ((nonl_parms[i].value < nonl_parms[i].min) || (nonl_parms[i].value > nonl_parms[i].max)) {
errmsg("Initial values must be within bounds");
unset_wait_cursor();
return;
}
}
}
nonl_prefs.autoload = XmToggleButtonGetState(nonl_autol_item);
for (i = 0; i < 3; i++) {
if (XmToggleButtonGetState(nonl_load_item[i])) {
nonl_prefs.load = i;
break;
}
}
if (nonl_prefs.load == LOAD_FUNCTION) {
strcpy(buf, (char *) xv_getstr(nonl_start_item));
if (sscanf(buf, "%lf", &nonl_prefs.start) != 1) {
errmsg("Invalid input in start field");
unset_wait_cursor();
return;
}
strcpy(buf, (char *) xv_getstr(nonl_stop_item));
if (sscanf(buf, "%lf", &nonl_prefs.stop) != 1) {
errmsg("Invalid input in stop field");
unset_wait_cursor();
return;
}
strcpy(buf, (char *) xv_getstr(nonl_npts_item));
if (sscanf(buf, "%d", &nonl_prefs.npoints) != 1) {
errmsg("Invalid input in start field");
unset_wait_cursor();
return;
}
}
if (nsteps) { /* we are asked to fit */
sprintf(buf, "Fitting with formula: %s\n", nonl_opts.formula);
stufftext(buf, 0);
sprintf(buf, "Initial guesses:\n");
stufftext(buf, 0);
for (i = 0; i < nonl_opts.parnum; i++) {
sprintf(buf, "\ta%1d = %g\n", i, nonl_parms[i].value);
stufftext(buf, 0);
}
sprintf(buf, "Tolerance = %g\n", nonl_opts.tolerance);
stufftext(buf, 0);
/*
* The fit itself!
*/
info = do_nonlfit(cg, nlsetno, nsteps);
if (info == -1) {
errmsg("Memory allocation error in do_nonlfit()");
unset_wait_cursor();
return;
}
for (i = 0; i < nonl_opts.parnum; i++) {
sprintf(buf, "%g", nonl_parms[i].value);
xv_setstr(nonl_value_item[i], buf);
}
if ((info > 0 && info < 4) || (info == 5)) {
sprintf(buf, "Computed values:\n");
stufftext(buf, 0);
for (i = 0; i < nonl_opts.parnum; i++) {
sprintf(buf, "\ta%1d = %g\n", i, nonl_parms[i].value);
stufftext(buf, 0);
}
}
if (info >= 0 && info <= 7) {
char *s;
switch (info) {
case 0:
s = "Improper input parameters.\n";
break;
case 1:
s = "Relative error in the sum of squares is at most tol.\n";
break;
case 2:
s = "Relative error between A and the solution is at most tol.\n";
break;
case 3:
s = "Relative error in the sum of squares and A and the solution is at most tol.\n";
break;
case 4:
s = "Fvec is orthogonal to the columns of the jacobian to machine precision.\n";
break;
case 5:
s = "\n";
break;
case 6:
s = "Tol is too small. No further reduction in the sum of squares is possible.\n";
break;
case 7:
s = "Tol is too small. No further improvement in the approximate solution A is possible.\n";
break;
default:
s = "\n";
errmsg("Internal error in do_nonl_proc(), please report");
break;
}
stufftext(s, 0);
stufftext("\n", 0);
}
} /* endif (nsteps) */
/*
* Select & activate a set to load results to
*/
if (!nsteps || nonl_prefs.autoload) {
/* check if the set is already allocated */
if ((nlloadset == -1) || (nlloadset == nlsetno) || !getsetlength(cg, nlloadset)) {
nlloadset = nextset(cg);
if (nlloadset == -1) {
errmsg("No more sets!");
unset_wait_cursor();
return;
} else {
activateset(cg, nlloadset);
setlength(cg, nlloadset, 1);
}
}
switch (nonl_prefs.load) {
case LOAD_VALUES:
sprintf(buf, "Evaluating fitted values and loading result to set %d:\n", nlloadset);
stufftext(buf, 0);
npts = getsetlength(cg, nlsetno);
setlength(cg, nlloadset, npts);
copycol2(cg, nlsetno, cg, nlloadset, 0);
break;
case LOAD_RESIDUALS:
sprintf(buf, "Evaluating fitted values and loading residuals to set %d:\n", nlloadset);
stufftext(buf, 0);
npts = getsetlength(cg, nlsetno);
setlength(cg, nlloadset, npts);
copycol2(cg, nlsetno, cg, nlloadset, 0);
break;
case LOAD_FUNCTION:
sprintf(buf, "Computing fitting function and loading result to set %d:\n", nlloadset);
stufftext(buf, 0);
npts = nonl_prefs.npoints;
if (npts <= 1) {
errmsg("Number of points must be > 1");
unset_wait_cursor();
return;
}
setlength(cg, nlloadset, npts);
delx = (nonl_prefs.stop - nonl_prefs.start)/(npts - 1);
xfit = getx(cg, nlloadset);
for (i = 0; i < npts; i++) {
xfit[i] = nonl_prefs.start + i * delx;
}
break;
}
setcomment(cg, nlloadset, nonl_opts.formula);
do_compute(nlloadset, 0, cg, nonl_opts.formula);
if (nonl_prefs.load == LOAD_RESIDUALS) { /* load residuals */
y = gety(cg, nlsetno);
yfit = gety(cg, nlloadset);
for (i = 0; i < npts; i++) {
yfit[i] -= y[i];
}
}
update_set_lists(cg);
drawgraph();
}
unset_wait_cursor();
}
