use set canvasHEADmaster

2 files changed, 2 insertions, 1 deletions

diff --git a/index.html b/index.html
index 6f4562d..3d1741f 100644
--- a/index.html
+++ b/index.html
@@ -28,6 +28,7 @@ Angle: <input type="number" value="-45" step="any" id="angleControl" />
   <option value="putWave">Place Plane Wave</option>
   <option value="putAtom">Place Atom</option>
 </select>
+<canvas id="canvas" />
 </p>
   </body>
 </html>
diff --git a/scattering.js b/scattering.js
index 14fbcad..792c818 100644
--- a/scattering.js
+++ b/scattering.js
@@ -589,7 +589,7 @@ var sim;
 function setup() {
   document.getElementById("speedControl").value=100;
   frameRate(30);
-  createCanvas(800, 600);
+  createCanvas(800, 600, document.getElementById("canvas"));
   fill(0);
   sim = new Simulation();
 }