From 26b67ba1372ad721320fdc07b7fd0145016c1b9a Mon Sep 17 00:00:00 2001
From: stefan schippers <stefan.schippers@gmail.com>
Date: Sun, 22 Feb 2026 12:35:04 +0100
Subject: [PATCH] annotate_op: if no OP and no DC dataset found load TRAN
 dataset and use 1st tran point in schematic annotation

---
 src/scheduler.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/scheduler.c b/src/scheduler.c
index 0af28441..05eccc01 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -373,6 +373,9 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg
         /* Xyce uses a 1-point DC transfer characteristic for operating point (OP) data */
         res = extra_rawfile(1, f, "dc", -1.0, -1.0);
       }
+      if(res != 1) { /* try to load a tran analysis (display 1stpoint as OP data in schematic) */
+        res = extra_rawfile(1, f, "tran", -1.0, -1.0);
+      }
       if(res == 1) {
         if(level >= 0) {
           xctx->raw->level = level;