mbostock · February 1, 2020 08:29 · Feb 9, 2016 · Oct 31, 2015 · Jun 11, 2015 · Jul 15, 2013
diff --git a/.block b/.block
@@ -0,0 +1 @@
+license: gpl-3.0
diff --git a/index.html b/index.html
@@ -12,8 +12,8 @@
 
 </style>
 <body>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
+<script src="//d3js.org/d3.v3.min.js"></script>
+<script src="//d3js.org/topojson.v1.min.js"></script>
 <script>
 
 var width = 960,

diff --git a/index.html b/index.html
@@ -12,8 +12,8 @@
 
 </style>
 <body>
-<script src="http://d3js.org/d3.v3.min.js"></script>
-<script src="http://d3js.org/topojson.v1.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
 <script>
 
 var width = 960,
@@ -27,6 +27,8 @@
     .attr("height", height);
 
 d3.json("ny.json", function(error, ny) {
+  if (error) throw error;
+
   svg.append("path")
       .datum(topojson.mesh(ny))
       .attr("d", path);

diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-13,837 census block groups; 13,866 polygons. 2.1M TopoJSON, 468K gzipped. Made by customizing the makefile in the [U.S. Atlas project](https://github.com/mbostock/us-atlas):
+13,837 census block groups; 13,866 polygons. 2.1M TopoJSON, 620K gzipped. Made by customizing the makefile in the [U.S. Atlas project](https://github.com/mbostock/us-atlas):
 
 ```bash
 topojson \

diff --git a/ny.json b/ny.json
diff --git a/index.html b/index.html
@@ -26,7 +26,7 @@
     .attr("width", width)
     .attr("height", height);
 
-d3.json("ny2.json", function(error, ny) {
+d3.json("ny.json", function(error, ny) {
   svg.append("path")
       .datum(topojson.mesh(ny))
       .attr("d", path);

diff --git a/index.html b/index.html
@@ -26,7 +26,7 @@
     .attr("width", width)
     .attr("height", height);
 
-d3.json("ny.json", function(error, ny) {
+d3.json("ny2.json", function(error, ny) {
   svg.append("path")
       .datum(topojson.mesh(ny))
       .attr("d", path);

diff --git a/ny.json b/ny.json
diff --git a/thumbnail.png b/thumbnail.png
diff --git a/index.html b/index.html
@@ -28,7 +28,7 @@
 
 d3.json("ny.json", function(error, ny) {
   svg.append("path")
-      .datum(topojson.feature(ny, ny.objects.blockgroups))
+      .datum(topojson.mesh(ny))
       .attr("d", path);
 });
 

diff --git a/ny.json b/ny.json
diff --git a/README.md b/README.md
@@ -0,0 +1,10 @@
+13,837 census block groups; 13,866 polygons. 2.1M TopoJSON, 468K gzipped. Made by customizing the makefile in the [U.S. Atlas project](https://github.com/mbostock/us-atlas):
+
+```bash
+topojson \
+	-o ny.json \
+	--projection 'd3.geo.mercator().center([-75.819, 42.795]).scale(6193).translate([480, 350]).precision(0)' \
+	-q 1e5 \
+	-s .5 \
+	-- blockgroups=shp/ny/blockgroups.shp
+```
diff --git a/index.html b/index.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<style>
+
+path {
+  fill: none;
+  stroke: #000;
+  stroke-width: .5px;
+  stroke-linejoin: round;
+  stroke-linecap: round;
+}
+
+</style>
+<body>
+<script src="http://d3js.org/d3.v3.min.js"></script>
+<script src="http://d3js.org/topojson.v1.min.js"></script>
+<script>
+
+var width = 960,
+    height = 700;
+
+var path = d3.geo.path()
+    .projection(null);
+
+var svg = d3.select("body").append("svg")
+    .attr("width", width)
+    .attr("height", height);
+
+d3.json("ny.json", function(error, ny) {
+  svg.append("path")
+      .datum(topojson.feature(ny, ny.objects.blockgroups))
+      .attr("d", path);
+});
+
+d3.select(self.frameElement).style("height", height + "px");
+
+</script>
diff --git a/ny.json b/ny.json