doubles resolution of PNG/PDF downloads (#261)

DataUSA · Apr 18, 2016 · 0f395df · 0f395df
1 parent 6c48ba7
commit 0f395df
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Showing 2 changed files with 10 additions and 5 deletions.
diff --git a/datausa/assets/js/helpers/save.js b/datausa/assets/js/helpers/save.js
@@ -12,11 +12,14 @@ var save = function(svg, options) {
     return;
   }
 
+  var upscale = 2;
+
   var canvas = document.createElement("canvas");
-  canvas.width = parseFloat(svg.attr("width"), 10);
-  canvas.height = parseFloat(svg.attr("height"), 10);
+  canvas.width = parseFloat(svg.attr("width"), 10) * upscale;
+  canvas.height = parseFloat(svg.attr("height"), 10) * upscale;
 
   var context = canvas.getContext('2d');
+  context.scale(upscale, upscale);
   context.clearRect(0, 0, canvas.width, canvas.height);
   if (options.mode === "pdf") {
     context.beginPath();

diff --git a/datausa/static/js/site.js b/datausa/static/js/site.js