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.gitattributes

@@ -33,3 +33,5 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+ma_pop_density.geojson filter=lfs diff=lfs merge=lfs -text
+ma_tract_income.geojson filter=lfs diff=lfs merge=lfs -text

20250818_ma_ceramics_map_MINIMAL.ipynb

@@ -0,0 +1,263 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "70964a01",
+   "metadata": {},
+   "source": [
+    "# Massachusetts Ceramics Map — Minimal Final Notebook\n",
+    "\n",
+    "This minimal notebook generates the final interactive Folium map for Massachusetts ceramics.\n",
+    "Edit the **Config** cell (paths + markers) and run the **Build Map** cell.\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "930fc5db",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# --- CONFIG (edit these paths) ---\n",
+    "POP_PATH   = \"/Users/harshadghodke/GinkgoClayWorks/Studio/Location/ma_pop_density.geojson\"\n",
+    "INC_PATH   = \"/Users/harshadghodke/GinkgoClayWorks/Studio/Location/ma_tract_income.geojson\"\n",
+    "ROADS_PATH = \"/Users/harshadghodke/GinkgoClayWorks/Studio/Location/ma_major_roads.geojson\"  # or None\n",
+    "OUT_HTML   = \"/Users/harshadghodke/GinkgoClayWorks/Studio/Location/ma_income_pop_studio_map.html\"\n",
+    "\n",
+    "# --- Markers (edit as needed) ---\n",
+    "locations = [\n",
+    "    # Studios\n",
+    "    {\"label\": \"Community Kiln (Framingham)\", \"lat\": 42.28, \"lon\": -71.42, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"ClayWorks (Ware)\", \"lat\": 42.26, \"lon\": -72.25, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Mudflat Studio (Somerville)\", \"lat\": 42.3973, \"lon\": -71.0979, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Commonwealth Clayworks (Somerville)\", \"lat\": 42.37, \"lon\": -71.10, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Feet of Clay Pottery (Brookline)\", \"lat\": 42.3429, \"lon\": -71.1231, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Clay Lounge (Boston)\", \"lat\": 42.3502, \"lon\": -71.0593, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Indigo Fire (Belmont)\", \"lat\": 42.3956, \"lon\": -71.1748, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Indigo Fire (Watertown)\", \"lat\": 42.3700, \"lon\": -71.1820, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Local Pottery (Norwell)\", \"lat\": 42.1570, \"lon\": -70.8212, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Clay Dreaming (Beverly)\", \"lat\": 42.5584, \"lon\": -70.8800, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Purple Sage Pottery (Middleton)\", \"lat\": 42.5971, \"lon\": -70.9968, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Rainbows Pottery Studio (Boston)\", \"lat\": 42.3505, \"lon\": -71.0780, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Potters Place Studio (Sharon)\", \"lat\": 42.12, \"lon\": -71.17, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Worcester Center Ceramics\", \"lat\": 42.2659, \"lon\": -71.8013, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Easthampton Clay\", \"lat\": 42.2646, \"lon\": -72.6687, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Workshop13 ClayWorks (Ware)\", \"lat\": 42.2612, \"lon\": -72.2476, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Umbrella Arts Ceramics (Concord)\", \"lat\": 42.4603, \"lon\": -71.3489, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"FYACS Pottery Studio (Melrose)\", \"lat\": 42.4566, \"lon\": -71.0626, \"group\": \"Studios\"},\n",
+    "    {\"label\": \"Lexington Arts (Lexington)\", \"lat\": 42.4473, \"lon\": -71.2255, \"group\": \"Studios\"},\n",
+    "\n",
+    "    # Suppliers\n",
+    "    {\"label\": \"Sheffield Pottery\", \"lat\": 42.1087, \"lon\": -73.3614, \"group\": \"Suppliers\"},\n",
+    "    {\"label\": \"PSH USA / Pottery Supply House\", \"lat\": 43.4500, \"lon\": -79.6500, \"group\": \"Suppliers\"},\n",
+    "    {\"label\": \"The Ceramic Shop (PA)\", \"lat\": 40.1220, \"lon\": -75.3392, \"group\": \"Suppliers\"},\n",
+    "    {\"label\": \"Bailey Pottery (NY)\", \"lat\": 41.9270, \"lon\": -74.0053, \"group\": \"Suppliers\"},\n",
+    "    {\"label\": \"Rusty Kiln (CT)\", \"lat\": 41.7751, \"lon\": -72.3004, \"group\": \"Suppliers\"},\n",
+    "    {\"label\": \"Portland Pottery (ME)\", \"lat\": 43.6668, \"lon\": -70.2544, \"group\": \"Suppliers\"},\n",
+    "\n",
+    "    # Artist Hubs\n",
+    "    {\"label\": \"Cape Cod Potters\", \"lat\": 41.65, \"lon\": -70.25, \"group\": \"Artist Hubs\"},\n",
+    "    {\"label\": \"Asparagus Valley Pottery Trail\", \"lat\": 42.30, \"lon\": -72.50, \"group\": \"Artist Hubs\"},\n",
+    "\n",
+    "    # Ceramics Schools\n",
+    "    {\"label\": \"MassArt (Boston)\", \"lat\": 42.3398, \"lon\": -71.0921, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"SMFA at Tufts (Boston)\", \"lat\": 42.3390, \"lon\": -71.0985, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"UMass Amherst\", \"lat\": 42.3954, \"lon\": -72.5199, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"UMass Dartmouth\", \"lat\": 41.5739, \"lon\": -70.2497, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"Westfield State University\", \"lat\": 42.1251, \"lon\": -72.7580, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"Harvard Ceramics Program\", \"lat\": 42.3673, \"lon\": -71.1119, \"group\": \"Ceramics Schools\"},\n",
+    "    {\"label\": \"Hopkinton Center for the Arts\", \"lat\": 42.2290, \"lon\": -71.5220, \"group\": \"Ceramics Schools\"},\n",
+    "\n",
+    "    # Home Base\n",
+    "    {\"label\": \"Hopkinton (Home Base)\", \"lat\": 42.23, \"lon\": -71.52, \"group\": \"Reference\"},\n",
+    "]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6bb2bfb2",
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [],
+   "source": [
+    "# Minimal, robust build cell matching your original behavior\n",
+    "\n",
+    "from pathlib import Path\n",
+    "import numpy as np\n",
+    "import pandas as pd\n",
+    "import geopandas as gpd\n",
+    "import folium\n",
+    "from folium import Choropleth, GeoJson, GeoJsonTooltip\n",
+    "\n",
+    "# Helpers\n",
+    "def ensure_epsg4326(gdf):\n",
+    "    if gdf.crs is None:\n",
+    "        return gdf.set_crs(4326, allow_override=True)\n",
+    "    try:\n",
+    "        if gdf.crs.to_epsg() != 4326:\n",
+    "            return gdf.to_crs(4326)\n",
+    "    except Exception:\n",
+    "        pass\n",
+    "    return gdf\n",
+    "\n",
+    "def safe_quantile_bins(series, qs=(0, .25, .5, .75, .9, 1)):\n",
+    "    vals = series.dropna()\n",
+    "    if vals.empty:\n",
+    "        return 8\n",
+    "    q = vals.quantile(qs).to_numpy()\n",
+    "    q = np.unique(q)  # strictly increasing for Folium\n",
+    "    return q.tolist() if len(q) >= 3 else 8\n",
+    "\n",
+    "# --- Load data (and normalize) ---\n",
+    "pop_density = gpd.read_file(POP_PATH)\n",
+    "income      = gpd.read_file(INC_PATH)\n",
+    "\n",
+    "# Normalize keys/CRS just in case\n",
+    "if \"GEOID_Text\" in pop_density.columns:\n",
+    "    pop_density[\"GEOID_Text\"] = pop_density[\"GEOID_Text\"].astype(str)\n",
+    "pop_density = ensure_epsg4326(pop_density)\n",
+    "\n",
+    "if \"GEOID\" in income.columns:\n",
+    "    income[\"GEOID\"] = income[\"GEOID\"].astype(str)\n",
+    "income = ensure_epsg4326(income)\n",
+    "\n",
+    "# Ensure numerics\n",
+    "if \"pop_per_sqmi\" in pop_density.columns:\n",
+    "    pop_density[\"pop_per_sqmi\"] = pd.to_numeric(pop_density[\"pop_per_sqmi\"], errors=\"coerce\")\n",
+    "income[\"median_income\"] = pd.to_numeric(income[\"median_income\"], errors=\"coerce\")\n",
+    "\n",
+    "# --- Define quantile bins (safe) ---\n",
+    "pop_bins   = safe_quantile_bins(pop_density[\"pop_per_sqmi\"])\n",
+    "income_bins= safe_quantile_bins(income[\"median_income\"])\n",
+    "\n",
+    "# --- Initialize map ---\n",
+    "m = folium.Map(location=[42.3, -71.8], zoom_start=8, tiles=\"cartodbpositron\")\n",
+    "\n",
+    "# --- Population Choropleth + Tooltip overlay ---\n",
+    "Choropleth(\n",
+    "    geo_data=pop_density,\n",
+    "    name=\"Population Density\",\n",
+    "    data=pop_density,\n",
+    "    columns=[\"GEOID_Text\", \"pop_per_sqmi\"],\n",
+    "    key_on=\"feature.properties.GEOID_Text\",\n",
+    "    fill_color=\"YlOrRd\",\n",
+    "    fill_opacity=0.6,\n",
+    "    line_opacity=0.2,\n",
+    "    bins=pop_bins,\n",
+    "    legend_name=\"Population per sq mi\",\n",
+    "    # nan_fill_opacity=0.1,  # uncomment if your folium version supports it\n",
+    ").add_to(m)\n",
+    "\n",
+    "pop_tooltip_layer = folium.FeatureGroup(name=\"Pop Density Tooltips\", show=False)\n",
+    "GeoJson(\n",
+    "    pop_density,\n",
+    "    style_function=lambda x: {\"fillOpacity\": 0, \"color\": \"transparent\"},\n",
+    "    tooltip=GeoJsonTooltip(\n",
+    "        fields=[\"GEOID_Text\", \"pop_per_sqmi\"],\n",
+    "        aliases=[\"Tract:\", \"Pop/SqMi:\"],\n",
+    "        localize=True,\n",
+    "    ),\n",
+    ").add_to(pop_tooltip_layer)\n",
+    "pop_tooltip_layer.add_to(m)\n",
+    "\n",
+    "# --- Income Choropleth + Tooltip overlay ---\n",
+    "Choropleth(\n",
+    "    geo_data=income,\n",
+    "    name=\"Median Household Income\",\n",
+    "    data=income,\n",
+    "    columns=[\"GEOID\", \"median_income\"],\n",
+    "    key_on=\"feature.properties.GEOID\",\n",
+    "    fill_color=\"PuBuGn\",\n",
+    "    fill_opacity=0.6,\n",
+    "    line_opacity=0.2,\n",
+    "    bins=income_bins,\n",
+    "    legend_name=\"Median Household Income ($)\",\n",
+    "    # nan_fill_opacity=0.1,  # uncomment if your folium version supports it\n",
+    ").add_to(m)\n",
+    "\n",
+    "income_tooltip_layer = folium.FeatureGroup(name=\"Income Tooltips\", show=False)\n",
+    "GeoJson(\n",
+    "    income,\n",
+    "    style_function=lambda x: {\"fillOpacity\": 0, \"color\": \"transparent\"},\n",
+    "    tooltip=GeoJsonTooltip(\n",
+    "        fields=[\"GEOID\", \"median_income\"],\n",
+    "        aliases=[\"Tract:\", \"Median Income ($):\"],\n",
+    "        localize=True,\n",
+    "    ),\n",
+    ").add_to(income_tooltip_layer)\n",
+    "income_tooltip_layer.add_to(m)\n",
+    "\n",
+    "# --- Markers grouped by category ---\n",
+    "layer_groups = {}\n",
+    "for loc in locations:\n",
+    "    grp = loc[\"group\"]\n",
+    "    if grp not in layer_groups:\n",
+    "        layer_groups[grp] = folium.FeatureGroup(name=grp, show=True)\n",
+    "\n",
+    "    color = (\"blue\" if grp == \"Studios\" else\n",
+    "             \"green\" if grp == \"Suppliers\" else\n",
+    "             \"purple\" if grp == \"Ceramics Schools\" else\n",
+    "             \"orange\" if grp == \"Artist Hubs\" else\n",
+    "             \"black\")\n",
+    "\n",
+    "    folium.Marker(\n",
+    "        location=[loc[\"lat\"], loc[\"lon\"]],\n",
+    "        popup=loc[\"label\"],\n",
+    "        icon=folium.Icon(color=color),\n",
+    "    ).add_to(layer_groups[grp])\n",
+    "\n",
+    "for grp in layer_groups.values():\n",
+    "    grp.add_to(m)\n",
+    "\n",
+    "# --- Major Roads (optional) ---\n",
+    "if ROADS_PATH and Path(ROADS_PATH).exists():\n",
+    "    folium.GeoJson(\n",
+    "        ROADS_PATH,\n",
+    "        name=\"Major Roads\",\n",
+    "        style_function=lambda x: {\"color\": \"black\", \"weight\": 1, \"opacity\": 0.4},\n",
+    "        tooltip=folium.GeoJsonTooltip(fields=[\"FULLNAME\"], aliases=[\"Road:\"]),\n",
+    "    ).add_to(m)\n",
+    "\n",
+    "# --- Layer Control ---\n",
+    "folium.LayerControl(collapsed=False).add_to(m)\n",
+    "\n",
+    "# --- Save & display ---\n",
+    "Path(OUT_HTML).parent.mkdir(parents=True, exist_ok=True)\n",
+    "m.save(OUT_HTML)\n",
+    "print(f\"[ok] Saved map to: {OUT_HTML}\")\n",
+    "m  # display inline"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c22644b4",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

app.py

@@ -0,0 +1,191 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Mon Aug 18 12:56:57 2025
+
+@author: harshadghodke
+"""
+
+# app.py
+import streamlit as st
+from pathlib import Path
+import numpy as np
+import pandas as pd
+import geopandas as gpd
+import folium
+from folium import Choropleth, GeoJson, GeoJsonTooltip
+
+st.set_page_config(page_title="MA Ceramics Map", layout="wide")
+
+DEFAULT_CENTER = (42.30, -71.80)
+DEFAULT_ZOOM = 8
+
+def ensure_epsg4326(gdf: gpd.GeoDataFrame) -> gpd.GeoDataFrame:
+    if gdf.crs is None:
+        return gdf.set_crs(4326, allow_override=True)
+    try:
+        if gdf.crs.to_epsg() != 4326:
+            return gdf.to_crs(4326)
+    except Exception:
+        pass
+    return gdf
+
+def safe_quantile_bins(series: pd.Series, qs=(0, .25, .5, .75, .9, 1)):
+    vals = series.dropna()
+    if vals.empty:
+        return 8
+    q = vals.quantile(qs).to_numpy()
+    q = np.unique(q)  # strictly increasing for Folium
+    return q.tolist() if len(q) >= 3 else 8
+
+def render_folium(m: folium.Map, height=820):
+    html = m.get_root().render()
+    st.components.v1.html(html, height=height, scrolling=False)
+
+# Sidebar config
+st.sidebar.header("Inputs (adjust if you reorganize files)")
+pop_path = st.sidebar.text_input("Population density GeoJSON", value="ma_pop_density.geojson")
+inc_path = st.sidebar.text_input("Income GeoJSON", value="ma_tract_income.geojson")
+roads_path = st.sidebar.text_input("Major roads GeoJSON (optional)", value="ma_major_roads.geojson")
+
+show_pop = st.sidebar.checkbox("Show Population Density", value=True)
+show_pop_tooltips = st.sidebar.checkbox("Show Pop Tooltips (Layer toggle)", value=True)
+show_inc = st.sidebar.checkbox("Show Median Income", value=True)
+show_inc_tooltips = st.sidebar.checkbox("Show Income Tooltips (Layer toggle)", value=True)
+show_roads = st.sidebar.checkbox("Show Major Roads", value=True)
+
+# Markers (edit here or later move to CSV)
+locations = [
+    # Studios
+    {"label": "Community Kiln (Framingham)", "lat": 42.28, "lon": -71.42, "group": "Studios"},
+    {"label": "ClayWorks (Ware)", "lat": 42.26, "lon": -72.25, "group": "Studios"},
+    {"label": "Mudflat Studio (Somerville)", "lat": 42.3973, "lon": -71.0979, "group": "Studios"},
+    {"label": "Commonwealth Clayworks (Somerville)", "lat": 42.37, "lon": -71.10, "group": "Studios"},
+    {"label": "Feet of Clay Pottery (Brookline)", "lat": 42.3429, "lon": -71.1231, "group": "Studios"},
+    {"label": "Clay Lounge (Boston)", "lat": 42.3502, "lon": -71.0593, "group": "Studios"},
+    {"label": "Indigo Fire (Belmont)", "lat": 42.3956, "lon": -71.1748, "group": "Studios"},
+    {"label": "Indigo Fire (Watertown)", "lat": 42.3700, "lon": -71.1820, "group": "Studios"},
+    {"label": "Local Pottery (Norwell)", "lat": 42.1570, "lon": -70.8212, "group": "Studios"},
+    {"label": "Clay Dreaming (Beverly)", "lat": 42.5584, "lon": -70.8800, "group": "Studios"},
+    {"label": "Purple Sage Pottery (Middleton)", "lat": 42.5971, "lon": -70.9968, "group": "Studios"},
+    {"label": "Rainbows Pottery Studio (Boston)", "lat": 42.3505, "lon": -71.0780, "group": "Studios"},
+    {"label": "Potters Place Studio (Sharon)", "lat": 42.12, "lon": -71.17, "group": "Studios"},
+    {"label": "Worcester Center Ceramics", "lat": 42.2659, "lon": -71.8013, "group": "Studios"},
+    {"label": "Easthampton Clay", "lat": 42.2646, "lon": -72.6687, "group": "Studios"},
+    {"label": "Workshop13 ClayWorks (Ware)", "lat": 42.2612, "lon": -72.2476, "group": "Studios"},
+    {"label": "Umbrella Arts Ceramics (Concord)", "lat": 42.4603, "lon": -71.3489, "group": "Studios"},
+    {"label": "FYACS Pottery Studio (Melrose)", "lat": 42.4566, "lon": -71.0626, "group": "Studios"},
+    {"label": "Lexington Arts (Lexington)", "lat": 42.4473, "lon": -71.2255, "group": "Studios"},
+    # Suppliers
+    {"label": "Sheffield Pottery", "lat": 42.1087, "lon": -73.3614, "group": "Suppliers"},
+    {"label": "PSH USA / Pottery Supply House", "lat": 43.4500, "lon": -79.6500, "group": "Suppliers"},
+    {"label": "The Ceramic Shop (PA)", "lat": 40.1220, "lon": -75.3392, "group": "Suppliers"},
+    {"label": "Bailey Pottery (NY)", "lat": 41.9270, "lon": -74.0053, "group": "Suppliers"},
+    {"label": "Rusty Kiln (CT)", "lat": 41.7751, "lon": -72.3004, "group": "Suppliers"},
+    {"label": "Portland Pottery (ME)", "lat": 43.6668, "lon": -70.2544, "group": "Suppliers"},
+    # Artist Hubs
+    {"label": "Cape Cod Potters", "lat": 41.65, "lon": -70.25, "group": "Artist Hubs"},
+    {"label": "Asparagus Valley Pottery Trail", "lat": 42.30, "lon": -72.50, "group": "Artist Hubs"},
+    # Schools
+    {"label": "MassArt (Boston)", "lat": 42.3398, "lon": -71.0921, "group": "Ceramics Schools"},
+    {"label": "SMFA at Tufts (Boston)", "lat": 42.3390, "lon": -71.0985, "group": "Ceramics Schools"},
+    {"label": "UMass Amherst", "lat": 42.3954, "lon": -72.5199, "group": "Ceramics Schools"},
+    {"label": "UMass Dartmouth", "lat": 41.5739, "lon": -70.2497, "group": "Ceramics Schools"},
+    {"label": "Westfield State University", "lat": 42.1251, "lon": -72.7580, "group": "Ceramics Schools"},
+    {"label": "Harvard Ceramics Program", "lat": 42.3673, "lon": -71.1119, "group": "Ceramics Schools"},
+    {"label": "Hopkinton Center for the Arts", "lat": 42.2290, "lon": -71.5220, "group": "Ceramics Schools"},
+    # Home base
+    {"label": "Hopkinton (Home Base)", "lat": 42.23, "lon": -71.52, "group": "Reference"},
+]
+
+# Load data
+pop_file = Path(pop_path)
+inc_file = Path(inc_path)
+roads_file = Path(roads_path) if roads_path else None
+
+if not pop_file.exists() or not inc_file.exists():
+    st.error("Missing input files. Keep GeoJSONs in the repo root or update paths in the sidebar.")
+    st.stop()
+
+pop = gpd.read_file(pop_file); pop = ensure_epsg4326(pop)
+inc = gpd.read_file(inc_file); inc = ensure_epsg4326(inc)
+
+if "GEOID_Text" in pop.columns: pop["GEOID_Text"] = pop["GEOID_Text"].astype(str)
+if "GEOID" in inc.columns: inc["GEOID"] = inc["GEOID"].astype(str)
+if "pop_per_sqmi" in pop.columns: pop["pop_per_sqmi"] = pd.to_numeric(pop["pop_per_sqmi"], errors="coerce")
+inc["median_income"] = pd.to_numeric(inc["median_income"], errors="coerce")
+
+# Build map
+m = folium.Map(location=DEFAULT_CENTER, zoom_start=DEFAULT_ZOOM, tiles="cartodbpositron")
+
+# Pop layer + tooltip
+
+if show_pop:
+    pop_bins = safe_quantile_bins(pop["pop_per_sqmi"])
+    Choropleth(
+        geo_data=pop, name="Population Density", data=pop,
+        columns=["GEOID_Text", "pop_per_sqmi"], key_on="feature.properties.GEOID_Text",
+        fill_color="YlOrRd", fill_opacity=0.6, line_opacity=0.2, bins=pop_bins,
+        legend_name="Population per sq mi",
+    ).add_to(m)
+
+    if show_pop_tooltips:
+        layer = folium.FeatureGroup(name="Pop Density Tooltips", show=False)
+        GeoJson(
+            pop,
+            style_function=lambda x: {"fillOpacity": 0, "color": "transparent"},
+            tooltip=GeoJsonTooltip(
+                fields=["GEOID_Text", "pop_per_sqmi"],
+                aliases=["Tract:", "Pop/SqMi:"],
+                localize=True,
+            ),
+        ).add_to(layer)
+        layer.add_to(m)
+
+# Income layer + tooltip
+if show_inc:
+    inc_bins = safe_quantile_bins(inc["median_income"])
+    Choropleth(
+        geo_data=inc, name="Median Household Income", data=inc,
+        columns=["GEOID", "median_income"], key_on="feature.properties.GEOID",
+        fill_color="PuBuGn", fill_opacity=0.6, line_opacity=0.2, bins=inc_bins,
+        legend_name="Median Household Income ($)",
+    ).add_to(m)
+
+    if show_inc_tooltips:
+        layer = folium.FeatureGroup(name="Income Tooltips", show=False)
+        GeoJson(
+            inc,
+            style_function=lambda x: {"fillOpacity": 0, "color": "transparent"},
+            tooltip=GeoJsonTooltip(
+                fields=["GEOID", "median_income"],
+                aliases=["Tract:", "Median Income ($):"],
+                localize=True,
+            ),
+        ).add_to(layer)
+        layer.add_to(m)
+
+# Markers by group
+groups = {}
+for loc in locations:
+    g = loc["group"]
+    if g not in groups:
+        groups[g] = folium.FeatureGroup(name=g, show=True)
+    color = ("blue" if g == "Studios" else "green" if g == "Suppliers" else
+             "purple" if g == "Ceramics Schools" else "orange" if g == "Artist Hubs" else "black")
+    folium.Marker([loc["lat"], loc["lon"]], popup=loc["label"], icon=folium.Icon(color=color)).add_to(groups[g])
+for layer in groups.values():
+    layer.add_to(m)
+
+# Optional roads
+if roads_file and roads_file.exists() and show_roads:
+    folium.GeoJson(
+        str(roads_file), name="Major Roads",
+        style_function=lambda x: {"color": "black", "weight": 1, "opacity": 0.4},
+        tooltip=GeoJsonTooltip(fields=["FULLNAME"], aliases=["Road:"]),
+    ).add_to(m)
+
+folium.LayerControl(collapsed=False).add_to(m)
+
+st.markdown("### Massachusetts Ceramics Map")
+render_folium(m)

ma_pop_density.geojson

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eed9af25c19a4ef0f827ddd8e644c66ee35477198c7eec6c309f2cf74744b0c0
+size 37266790

ma_tract_income.geojson

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:647bcaac7121b1ba82c32e6871b404723281fcab53bfa4929333fe393a27fa93
+size 12546077

requirements.txt

@@ -1,3 +1,9 @@
-altair
-pandas
-streamlit
+streamlit>=1.36
+geopandas>=0.13
+folium>=0.14
+pandas>=2.0
+numpy>=1.24
+fiona>=1.9
+shapely>=2.0
+pyproj>=3.6
+rtree>=1.0