Merge pull request #56 from tlyon3/dash-builtin-colorscales

DASH builtin-colorscales

Author: sglyon

dash/builtin-colorscales.jl

@@ -0,0 +1,39 @@
+using Dash
+using DashCoreComponents
+using DashHtmlComponents
+using PlotlyJS, CSV, DataFrames
+
+df = dataset(DataFrame, "iris")
+
+app = dash(external_stylesheets=["https://codepen.io/chriddyp/pen/bWLwgP.css"])
+
+app.layout = html_div() do
+    html_p("Color scale"),
+    dcc_dropdown(
+        id="colorscale",
+        options=[
+            (label = x, value = x)
+            for x in sort(collect(keys(colors.all)))
+        ],
+        value=Symbol("tableau_hue_circle")
+    ),
+    dcc_graph(id="graph")
+
+end
+
+callback!(app, Output("graph", "figure"), Input("colorscale", "value")) do val
+    fig = plot(
+        df,
+        mode="markers",
+        x=:sepal_width,
+        y=:sepal_length,
+        marker=attr(
+            color=df.sepal_length,
+            coloraxis="coloraxis",
+            showscale=true
+        ),
+        Layout(coloraxis_colorscale=colors.all[Symbol(val)])
+    )
+end
+
+run_server(app, "0.0.0.0", 8080)