From 33ddf5726eff48bbd0f0c50fe199521a81ca904b Mon Sep 17 00:00:00 2001
From: Philipp Rudiger <prudiger@anaconda.com>
Date: Wed, 23 Aug 2023 12:14:41 +0200
Subject: [PATCH] Improve gallery

---
 examples/gallery/anaconda-project.yml         |  30 ++++
 examples/gallery/earthquakes/earthquakes.yaml |   2 +-
 .../gallery/windturbines/windturbines.yaml    | 134 ++++++++++++++++++
 3 files changed, 165 insertions(+), 1 deletion(-)
 create mode 100644 examples/gallery/anaconda-project.yml
 create mode 100644 examples/gallery/windturbines/windturbines.yaml

diff --git a/examples/gallery/anaconda-project.yml b/examples/gallery/anaconda-project.yml
new file mode 100644
index 00000000..5784c3b5
--- /dev/null
+++ b/examples/gallery/anaconda-project.yml
@@ -0,0 +1,30 @@
+name: lumen_gallery
+description: An environment to serve all Lumen gallery examples
+
+commands:
+  default:
+    description: Serve the Lumen gallery
+    unix: lumen serve */*.yaml --reuse-sessions --global-loading-spinner --liveness --num-procs 4
+    supports_http_options: true
+
+channels:
+  - pyviz/label/dev
+  - conda-forge
+
+variables:
+  PANEL_AE5_CDN: 1
+  MPLBACKEND: Agg
+
+packages:
+  - lumen
+  - panel
+  - hvplot
+  - datashader
+  - fastparquet
+  - altair
+  - numba::llvmlite
+  - python-duckdb
+  - s3fs
+
+env_specs:
+  default: {}
diff --git a/examples/gallery/earthquakes/earthquakes.yaml b/examples/gallery/earthquakes/earthquakes.yaml
index a0ee5367..4c7b2f73 100644
--- a/examples/gallery/earthquakes/earthquakes.yaml
+++ b/examples/gallery/earthquakes/earthquakes.yaml
@@ -78,7 +78,7 @@ layouts:
         streaming: true
       depth_hist:
         type: hvplot
-        pipeline: selected
+        pipeline: earthquakes
         kind: hist
         y: depth
         fill_color: white
diff --git a/examples/gallery/windturbines/windturbines.yaml b/examples/gallery/windturbines/windturbines.yaml
new file mode 100644
index 00000000..e71a840b
--- /dev/null
+++ b/examples/gallery/windturbines/windturbines.yaml
@@ -0,0 +1,134 @@
+config:
+  title: Windturbine Database Viewer
+  theme: dark
+  template: material
+sources:
+  windturbines:
+    type: duckdb
+    cache_dir: ./cache
+    uri: ":memory:"
+    tables:
+      windturbines: "read_parquet('s3://datasets.holoviz.org/windturbines/v1/windturbines.parq')"
+    initializers:
+      - "INSTALL httpfs;"
+      - "LOAD httpfs;"
+variables:
+  state:
+    type: url
+  color_by:
+    type: widget
+    kind: panel.widgets.Select
+    options:
+      - t_manu
+      - t_year
+    value: t_manu
+pipelines:
+  continental:
+    source: windturbines
+    filters:
+      - type: constant
+        field: xlong
+        value: [-125, -66]
+      - type: constant
+        field: ylat
+        value: [24, 50]
+      - type: constant
+        field: t_state
+        value: $variables.state
+  windturbines:
+    pipeline: continental
+    filters:
+      - type: widget
+        field: t_state
+      - type: widget
+        field: t_manu
+      - type: widget
+        field: p_year
+      - type: widget
+        field: t_cap
+  filtered:
+    pipeline: windturbines
+    filters:
+      - type: param
+        parameter: points.selection_expr
+  table:
+    pipeline: filtered
+    transforms:
+      - type: columns
+        columns: [t_state, t_county, p_name, t_manu, t_model, p_year, t_cap, t_hh, t_rd, t_rsa, t_ttlh]
+  count:
+    pipeline: filtered
+    transforms:
+      - type: count
+      - type: rename
+        columns:
+          case_id: Count
+  sum:
+    pipeline: filtered
+    transforms:
+      - type: columns
+        columns:
+          - t_cap
+      - type: sum
+      - type: eval
+        expr: "Capacity = table.t_cap / 10**6"
+layouts:
+  - title: Overview
+    layout: [[points, [count, capacity]], [table, [cap_hist, year_hist]]]
+    sizing_mode: stretch_width
+    views:
+      points:
+        type: hvplot
+        kind: points
+        pipeline: windturbines
+        x: easting
+        y: northing
+        c: $variables.color_by
+        tiles: ESRI
+        rasterize: true
+        dynspread: true
+        responsive: true
+        height: 500
+        xaxis: null
+        yaxis: null
+        streaming: true
+        selection_group: windturbines
+      table:
+        type: table
+        pipeline: table
+        header_filters: true
+        sizing_mode: stretch_width
+        height: 500
+        page_size: 20
+      count:
+        type: indicator
+        indicator: number
+        pipeline: count
+        field: Count
+        format: '{value:,}'
+        width: 300
+        default_color: white
+      capacity:
+        type: indicator
+        indicator: number
+        pipeline: sum
+        field: Capacity
+        format: '{value:.0f} TWh'
+        width: 300
+        default_color: white
+      cap_hist:
+        type: hvplot
+        kind: hist
+        pipeline: windturbines
+        y: t_cap
+        frame_width: 400
+        height: 250
+        selection_group: windturbines
+      year_hist:
+        type: hvplot
+        kind: hist
+        pipeline: windturbines
+        y: p_year
+        frame_width: 400
+        height: 250
+        selection_group: windturbines