Merge pull request #120 from savitakartik/log_edges_104

added option to log time axis in pages/edges

tsqc/pages/edges.py

@@ -1,20 +1,27 @@
 import bokeh.models as bkm
 import holoviews as hv
 import holoviews.operation.datashader as hd
+import numpy as np
 import panel as pn
 
 from .. import config
 from ..plot_helpers import filter_points
 from ..plot_helpers import hover_points
 
 
-def page(tsm):
-    hv.extension("bokeh")
+def make_edges_panel(log_y, tsm):
     edges_df = tsm.edges_df
-    edges_df["parent_time_right"] = edges_df["parent_time"]
-    lines = hv.Segments(
-        edges_df, kdims=["left", "parent_time", "right", "parent_time_right"]
-    )
+    if log_y:
+        edges_df["log_parent_time"] = np.log10(1 + edges_df["parent_time"])
+        edges_df["log_parent_time_right"] = edges_df["log_parent_time"]
+        y_dim_left = "log_parent_time"
+        y_dim_right = "log_parent_time_right"
+    else:
+        edges_df["parent_time_right"] = edges_df["parent_time"]
+        y_dim_left = "parent_time"
+        y_dim_right = "parent_time_right"
+
+    lines = hv.Segments(edges_df, kdims=["left", y_dim_left, "right", y_dim_right])
     range_stream = hv.streams.RangeXY(source=lines)
     streams = [range_stream]
     filtered = lines.apply(filter_points, streams=streams)
@@ -34,8 +41,19 @@ def page(tsm):
             width=config.PLOT_WIDTH,
             height=config.PLOT_HEIGHT,
             xlabel="Position",
-            ylabel="Time",
+            ylabel="Time (parent node)",
         )
     )
-
     return pn.Column(main)
+
+
+def page(tsm):
+    hv.extension("bokeh")
+
+    log_y_checkbox = pn.widgets.Checkbox(name="Log y-axis", value=False)
+    plot_options = pn.Column(
+        pn.pane.Markdown("### Plot Options"),
+        log_y_checkbox,
+    )
+    edges_panel = pn.bind(make_edges_panel, log_y=log_y_checkbox, tsm=tsm)
+    return pn.Column(plot_options, edges_panel)