unified Plot*.set(), always accept times and values

actor.py

@@ -7,8 +7,8 @@ from sources import Camera, Source
 def update_all(plt, cache):
     plt.set(*cache.xy)
 
-def update_latest(plt, cache):
-    plt.set(cache.latest)
+#def update_latest(plt, cache):
+#    plt.set(cache.latest)
 
 
 def decide_src_plt_cache_update(pvname):
@@ -19,7 +19,7 @@ def decide_src_plt_cache_update(pvname):
         src = Camera(pvname)
         plt = Plot2D
         cache_size = 1
-        update = update_latest
+        update = update_all
         if not src.is_connected:
             raise RuntimeError(f"{pvname} is not connected")
 

plot2d.py

@@ -28,7 +28,8 @@ class Plot2D(Object):
         super().__init__(fig)
 
 
-    def set(self, image):
+    def set(self, times, values):
+        image = values[-1]
         self.source.data.update(image=[image])