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-rw-r--r--gtk2_ardour/automation_selectable.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/gtk2_ardour/automation_selectable.h b/gtk2_ardour/automation_selectable.h
index 8c897816ba..62ebd08aa2 100644
--- a/gtk2_ardour/automation_selectable.h
+++ b/gtk2_ardour/automation_selectable.h
@@ -25,8 +25,11 @@
class TimeAxisView;
/** A selected automation point, expressed as a rectangle.
+ *
* x coordinates start/end are in AutomationList model coordinates.
- * y coordinates are a expressed as a fraction of track height.
+ * y coordinates are a expressed as a fraction of the AutomationTimeAxisView's height, where 0 is the
+ * bottom of the track, and 1 is the top.
+ *
* This representation falls between the visible GUI control points and
* the back-end "actual" automation points, some of which may not be
* visible; it is not trivial to convert from one of these to the