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bug 578 crash when scale is too short 

Warning message if scale and vector length do not match.
Restrict number of points plotted to the smaller of both.
This commit is contained in:
Holger Vogt 2022-02-07 15:59:43 +01:00
parent 4f82a24df2
commit 640fa7e17b
1 changed files with 5 additions and 1 deletions
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6
src/frontend/plotting/plotcurv.c
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@ -135,7 +135,11 @@ ft_graf(struct dvec *v, struct dvec *xs, bool nostart)
Then everything is plotted. */
bool mono = (currentgraph->plottype != PLOT_RETLIN);
int dir = 0;
for (i = 0, j = v->v_length; i < j; i++) {
int vlength = v->v_length;
int slength = xs->v_length;
if (slength != vlength)
fprintf(stderr, "Warning: length of vector %s and its scale do not match, plot may be truncated!\n", v->v_name);
for (i = 0, j = min(vlength, slength); i < j; i++) {
dx = isreal(xs) ? xs->v_realdata[i] :
realpart(xs->v_compdata[i]);
dy = isreal(v) ? v->v_realdata[i] :