move has_nonlinearities check

NanoComp · Feb 26, 2023 · ae9503d · ae9503d
1 parent 0953062
commit ae9503d
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/dft.cpp b/src/dft.cpp
@@ -192,7 +192,9 @@ dft_chunk *fields::add_dft(component c, const volume &where, const double *freq,
   data.c = c;
   data.vc = vc;
 
-  if (decimation_factor == 0) {
+  if (decimation_factor == 0 && has_nonlinearities())
+    decimation_factor = 1;
+  else if (decimation_factor == 0) {
     double src_freq_max = 0;
     for (src_time *s = sources; s; s = s->next) {
       if (s->get_fwidth() == 0)
@@ -204,7 +206,7 @@ dft_chunk *fields::add_dft(component c, const volume &where, const double *freq,
     double freq_max = 0;
     for (size_t i = 0; i < Nfreq; ++i)
       freq_max = std::max(freq_max, std::abs(freq[i]));
-    if ((freq_max > 0) && (src_freq_max > 0) && !has_nonlinearities())
+    if ((freq_max > 0) && (src_freq_max > 0))
       decimation_factor = std::max(1, int(std::floor(1 / (dt * (freq_max + src_freq_max)))));
     else
       decimation_factor = 1;