Plot Component (#805)

* plotly + matplotlib component

* update plot demos and plotly component

* fix gray bg

* format

* pnpm lock file

* add bokeh

* update plot demo

* add bokeh support

* ignore plot file

* fixed demo

* fixed sorting

* update image-plot deprecation warning

Co-authored-by: Abubakar Abid <abubakar@huggingface.co>

demo/outbreak_forecast/requirements.txt

@@ -1,2 +1,3 @@
 numpy
-matplotlib
+matplotlib
+bokeh

demo/outbreak_forecast/run.py

@@ -1,43 +1,72 @@
 from math import sqrt
 
+import matplotlib
+matplotlib.use('Agg')
 import matplotlib.pyplot as plt
 import numpy as np
+import plotly.express as px
+import pandas as pd
+import bokeh.plotting as bk
+from bokeh.models import ColumnDataSource
+from bokeh.embed import json_item
 
 import gradio as gr
 
 
-def outbreak(r, month, countries, social_distancing):
+def outbreak(plot_type, r, month, countries, social_distancing):
     months = ["January", "February", "March", "April", "May"]
     m = months.index(month)
     start_day = 30 * m
     final_day = 30 * (m + 1)
     x = np.arange(start_day, final_day + 1)
-    day_count = x.shape[0]
     pop_count = {"USA": 350, "Canada": 40, "Mexico": 300, "UK": 120}
-    r = sqrt(r)
     if social_distancing:
         r = sqrt(r)
-    for i, country in enumerate(countries):
-        series = x ** (r) * (i + 1)
-        plt.plot(x, series)
-    plt.title("Outbreak in " + month)
-    plt.ylabel("Cases")
-    plt.xlabel("Days since Day 0")
-    plt.legend(countries)
-    return plt
+    df = pd.DataFrame({'day': x})
+    for country in countries:
+        df[country] = ( x ** (r) * (pop_count[country] + 1))
+
+
+    if plot_type == "Matplotlib":
+        fig = plt.figure()
+        plt.plot(df['day'], df[countries])
+        plt.title("Outbreak in " + month)
+        plt.ylabel("Cases")
+        plt.xlabel("Days since Day 0")
+        plt.legend(countries)
+        return fig
+    elif plot_type == "Plotly":
+        fig = px.line(df, x='day', y=countries)
+        fig.update_layout(title="Outbreak in " + month,
+                   xaxis_title="Cases",
+                   yaxis_title="Days Since Day 0")
+        return fig
+    else:
+        source = ColumnDataSource(df)
+        p = bk.figure(title="Outbreak in " + month, x_axis_label="Cases", y_axis_label="Days Since Day 0")
+        for country in countries:
+            p.line(x='day', y=country, line_width=2, source=source)
+        item_text = json_item(p, "plotDiv")
+        return item_text
+
 
 
 iface = gr.Interface(
     outbreak,
     [
+        gr.inputs.Dropdown(
+            ["Matplotlib", "Plotly", "Bokeh"], label="Plot Type"
+        ),
         gr.inputs.Slider(1, 4, default=3.2, label="R"),
         gr.inputs.Dropdown(
             ["January", "February", "March", "April", "May"], label="Month"
         ),
-        gr.inputs.CheckboxGroup(["USA", "Canada", "Mexico", "UK"], label="Countries"),
+        gr.inputs.CheckboxGroup(["USA", "Canada", "Mexico", "UK"], label="Countries",
+                                default=["USA", "Canada"]),
         gr.inputs.Checkbox(label="Social Distancing?"),
     ],
-    "plot",
+    gr.outputs.Plot(type="auto"),
 )
+
 if __name__ == "__main__":
     iface.launch()

gradio/outputs.py

@@ -15,9 +15,11 @@
 from types import ModuleType
 from typing import TYPE_CHECKING, Dict, List, Optional
 
+import matplotlib
 import numpy as np
 import pandas as pd
 import PIL
+from black import out
 from ffmpy import FFmpeg
 
 from gradio import processing_utils
@@ -210,12 +212,12 @@ def __init__(
         """
         Parameters:
         type (str): Type of value to be passed to component. "numpy" expects a numpy array with shape (width, height, 3), "pil" expects a PIL image object, "file" expects a file path to the saved image or a remote URL, "plot" expects a matplotlib.pyplot object, "auto" detects return type.
-        plot (bool): DEPRECATED. Whether to expect a plot to be returned by the function.
+        plot (bool): DEPRECATED (Use the new 'plot' component). Whether to expect a plot to be returned by the function.
         label (str): component name in interface.
         """
         if plot:
             warnings.warn(
-                "The 'plot' parameter has been deprecated. Set parameter 'type' to 'plot' instead.",
+                "The 'plot' parameter has been deprecated. Use the new 'plot' component instead.",
                 DeprecationWarning,
             )
             self.type = "plot"
@@ -853,6 +855,70 @@ def get_shortcut_implementations(cls):
         }
 
 
+class Plot(OutputComponent):
+    """
+    Used for plot output.
+    Output type: matplotlib plt or plotly figure
+    Demos: outbreak_forecast
+    """
+
+    def __init__(self, type: str = None, label: Optional[str] = None):
+        """
+        Parameters:
+        type (str): type of plot (matplotlib, plotly)
+        label (str): component name in interface.
+        """
+        self.type = type
+        super().__init__(label)
+
+    def get_template_context(self):
+        return {**super().get_template_context()}
+
+    @classmethod
+    def get_shortcut_implementations(cls):
+        return {
+            "plot": {},
+        }
+
+    def postprocess(self, y):
+        """
+        Parameters:
+        y (str): plot data
+        Returns:
+        (str): plot type
+        (str): plot base64 or json
+        """
+        dtype = self.type
+        if self.type == "plotly":
+            out_y = y.to_json()
+        elif self.type == "matplotlib":
+            out_y = processing_utils.encode_plot_to_base64(y)
+        elif self.type == "bokeh":
+            out_y = json.dumps(y)
+        elif self.type == "auto":
+            if isinstance(y, (ModuleType, matplotlib.pyplot.Figure)):
+                dtype = "matplotlib"
+                out_y = processing_utils.encode_plot_to_base64(y)
+            elif isinstance(y, dict):
+                dtype = "bokeh"
+                out_y = json.dumps(y)
+            else:
+                dtype = "plotly"
+                out_y = y.to_json()
+        else:
+            raise ValueError(
+                "Unknown type. Please choose from: 'plotly', 'matplotlib', 'bokeh'."
+            )
+        return {"type": dtype, "plot": out_y}
+
+    def deserialize(self, x):
+        y = processing_utils.decode_base64_to_file(x).name
+        return y
+
+    def save_flagged(self, dir, label, data, encryption_key):
+        return self.save_flagged_file(dir, label, data, encryption_key)
+
+
 class Image3D(OutputComponent):
     """
     Used for 3d image model output.

ui/.prettierignore

@@ -1,4 +1,5 @@
 packages/app/public/**
 pnpm-workspace.yaml
 packages/app/dist/**
-pnpm-lock.yaml
+pnpm-lock.yaml
+packages/app/src/components/output/Plot/Plot.svelte

ui/package.json

@@ -20,9 +20,10 @@
 		"svelte": "^3.46.3",
 		"svelte-check": "^2.4.1",
 		"svelte-i18n": "^3.3.13",
+		"vitest": "^0.3.2",
+		"plotly.js-dist-min": "^2.10.1",
 		"babylonjs": "^4.2.1",
-		"babylonjs-loaders": "^4.2.1",
-		"vitest": "^0.3.2"
+		"babylonjs-loaders": "^4.2.1"
 	},
 	"devDependencies": {
 		"@types/three": "^0.138.0"

ui/packages/app/src/components/directory.ts

@@ -26,6 +26,7 @@ import OutputTextbox from "./output/Textbox/config.js";
 import OutputVideo from "./output/Video/config.js";
 import OutputTimeSeries from "./output/TimeSeries/config.js";
 import OutputChatbot from "./output/Chatbot/config.js";
+import OutputPlot from "./output/Plot/config.js";
 import OutputImage3D from "./output/Image3D/config.js";
 
 import StaticButton from "./static/Button/config.js";
@@ -62,6 +63,7 @@ export const output_component_map = {
 	timeseries: OutputTimeSeries,
 	video: OutputVideo,
 	chatbot: OutputChatbot,
+	plot: OutputPlot,
 	image3d: OutputImage3D
 };
 

ui/packages/app/src/components/output/Plot/Plot.svelte

@@ -0,0 +1,73 @@
+<svelte:head>
+	<!-- Loading Bokeh from CDN -->
+	<script src="https://cdn.bokeh.org/bokeh/release/bokeh-2.4.2.min.js" on:load={handleBokehLoaded} ></script>
+	{#if bokehLoaded}
+		<script src="https://cdn.pydata.org/bokeh/release/bokeh-widgets-2.4.2.min.js" on:load={() => initializeBokeh(1)} ></script>
+		<script src="https://cdn.pydata.org/bokeh/release/bokeh-tables-2.4.2.min.js" on:load={() => initializeBokeh(2)}></script>
+		<script src="https://cdn.pydata.org/bokeh/release/bokeh-gl-2.4.2.min.js" on:load={() => initializeBokeh(3)}></script>
+		<script src="https://cdn.pydata.org/bokeh/release/bokeh-api-2.4.2.min.js" on:load={() => initializeBokeh(4)}></script>
+		<script src="https://cdn.pydata.org/bokeh/release/bokeh-api-2.4.2.min.js"  on:load={() => initializeBokeh(5)} ></script>
+	{/if}
+</svelte:head>
+
+<script lang="ts">
+	export let value: string;
+	export let theme: string;
+	import { afterUpdate, onMount} from "svelte";
+	import Plotly from "plotly.js-dist-min";
+
+	// Bokeh
+	let bokehLoaded = false
+	const resolves = []
+	const bokehPromises = Array(6).fill(0).map((_, i) => createPromise(i))
+
+	const initializeBokeh = (index) => {
+		if (value["type"] == "bokeh") {
+			console.log(resolves)
+			resolves[index]()
+    }
+	}
+
+	function createPromise(index) {
+		return new Promise((resolve, reject) => {
+  		resolves[index] = resolve
+		})
+	}
+
+	function handleBokehLoaded() {
+		initializeBokeh(0)
+		bokehLoaded = true
+	}
+
+	Promise.all(bokehPromises).then(() => {
+		let plotObj = JSON.parse(value["plot"]);
+    window.Bokeh.embed.embed_item(plotObj, "plotDiv");	
+	})
+
+	// Plotly
+	afterUpdate(() => {
+		if (value["type"] == "plotly") {
+			let plotObj = JSON.parse(value["plot"]);
+			let plotDiv = document.getElementById("plotDiv");
+			Plotly.newPlot(plotDiv, plotObj["data"], plotObj["layout"]);
+		} else if (value["type"] == "bokeh") {
+			let plotObj = JSON.parse(value["plot"]);
+    	window.Bokeh.embed.embed_item(plotObj, "plotDiv");
+		}
+	});
+</script>
+
+{#if value["type"] == "plotly" || value["type"] == "bokeh" }
+	<div id="plotDiv" />
+{:else}
+	<div
+		class="output-image w-full h-80 flex justify-center items-center dark:bg-gray-600 relative"
+		{theme}
+	>
+		<!-- svelte-ignore a11y-missing-attribute -->
+		<img class="w-full h-full object-contain" src={value["plot"]} />
+	</div>
+{/if}
+
+<style lang="postcss">
+</style>

ui/packages/app/src/components/output/Plot/config.ts

@@ -0,0 +1,5 @@
+import Component from "./Plot.svelte";
+
+export default {
+	component: Component
+};