Adjust all `slice_from_time()` calls to not expect mask

piker/data/_formatters.py

@@ -182,7 +182,11 @@ class IncrementalFormatter(msgspec.Struct):
             nd_stop = self.xy_nd_stop = src_stop
 
             align_index = array[self.index_field]
-            self._index_step_size = align_index[-1] - align_index[-2]
+            self._index_step_size = (
+                align_index[-1]
+                -
+                align_index[-2]
+            )
 
         # compute the length diffs between the first/last index entry in
         # the input data and the last indexes we have on record from the

piker/data/_pathops.py

@@ -126,7 +126,7 @@ def path_arrays_from_ohlc(
         high = q['high']
         low = q['low']
         close = q['close']
-        index = float64(q['time'])
+        index = float64(q['index'])
 
         # XXX: ``numba`` issue: https://github.com/numba/numba/issues/8622
         # index = float64(q[index_field])

piker/ui/_chart.py

@@ -1036,17 +1036,12 @@ class ChartPlotWidget(pg.PlotWidget):
             (
                 abs_slc,
                 read_slc,
-                mask,
-
             ) = slice_from_time(
                 array,
                 start_t=vtl,
                 stop_t=vtr,
             )
-            iv_arr = array
-            if mask is not None:
-                iv_arr = array[mask]
-
+            iv_arr = array[read_slc]
             index = iv_arr['time']
 
         else:

piker/ui/_render.py

@@ -291,13 +291,12 @@ class Viz(msgspec.Struct):  # , frozen=True):
             (
                 abs_slc,
                 read_slc,
-                mask,
             ) = slice_from_time(
                 arr,
                 start_t=lbar,
                 stop_t=rbar,
             )
-            slice_view = arr[mask]
+            slice_view = arr[read_slc]
 
         else:
             ifirst = arr[0]['index']
@@ -444,7 +443,6 @@ class Viz(msgspec.Struct):  # , frozen=True):
             (
                 abs_slc,
                 read_slc,
-                mask,
             ) = slice_from_time(
                 array,
                 start_t=lbar,