| license: gpl-3.0 |
The Natural Earth Gray Earth raster data set, reprojected to the U.S. National Atlas projection (a rotated Lambert azimuthal equal-area projection) via gdalwarp.
gdalwarp \
-r lanczos \
-ts 960 0 \
-t_srs EPSG:2163 \
-te -2100000 -2200000 2600000 750000 \
GRAY_HR_SR_OB_DR.tif \
shaded-relief.tiff| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| #land { | |
| fill: none; | |
| stroke: #000; | |
| stroke-linejoin: round; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="//d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 600; | |
| var projection = d3.geo.azimuthalEqualArea() | |
| .scale(width) | |
| .translate([33.5, 262.5]) | |
| .rotate([100, -45]) | |
| .center([-17.6076, -4.7913]) // rotated [-122.4183, 37.7750] | |
| .scale(1297); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| d3.json("/mbostock/raw/4090846/us.json", function(error, us) { | |
| if (error) throw error; | |
| var defs = svg.append("defs"); | |
| defs.append("path") | |
| .datum(topojson.feature(us, us.objects.land)) | |
| .attr("id", "land") | |
| .attr("d", path); | |
| svg.append("clipPath") | |
| .attr("id", "clip") | |
| .append("use") | |
| .attr("xlink:href", "#land"); | |
| svg.append("image") | |
| .attr("clip-path", "url(#clip)") | |
| .attr("xlink:href", "shaded-relief.png") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("use") | |
| .attr("xlink:href", "#land"); | |
| }); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
