From 547bdec01802f64b96aa80a77588c4c5c41a39cb Mon Sep 17 00:00:00 2001
From: stefan schippers <stefan.schippers@gmail.com>
Date: Sat, 30 Mar 2024 13:00:39 +0100
Subject: [PATCH] avoid rouding to 0 wave measures in show_node_measures()

---
 src/callback.c | 1 +
 src/draw.c     | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/callback.c b/src/callback.c
index 5ee6a4f6..d94439b9 100644
--- a/src/callback.c
+++ b/src/callback.c
@@ -329,6 +329,7 @@ void backannotate_at_cursor_pos(int cursor, int i, Graph_ctx *gr)
         dbg(1, "                            : p=%d\n", p);
         for(i = 0; i < raw->nvars; ++i) {
           raw->cursor_a_val[i] = interpolate_yval(i, (p < ofs_end), p, cursorpos, sweep_idx);
+          dbg(1, "backannotate_at_cursor_pos(): cursor_a_val[%d] = %g\n", i, raw->cursor_a_val[i]);
         }
         dbg(1, "                            : cursor_a_val[0]=%g\n", raw->cursor_a_val[0]);
       }
diff --git a/src/draw.c b/src/draw.c
index c3ec3aa1..31b6a0ec 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -3120,8 +3120,8 @@ static void show_node_measures(
       yy = xctx->raw->cursor_a_val[idx];
     else 
       yy = 0.0;
-
-    if(XSIGN0(gr->gy1) != XSIGN0(gr->gy2) && fabs(yy) < 1e-4 * fabs(gr->gh)) yy = 0.0;
+    /* is below line necessary? */
+    /* if(XSIGN0(gr->gy1) != XSIGN0(gr->gy2) && fabs(yy) < 1e-9 * fabs(gr->gh)) yy = 0.0; */
     if(yy != 0.0  && fabs(yy * gr->unity) < 1.0e-3) {
       fmt1="%.2e";
       fmt2="%.2e%c";