added info stamp to canvas

js/speccy.js

@@ -662,7 +662,23 @@ function plotData() {
     ctx.stroke();
     ctx.closePath();
 
-
+    // write the plate-mjd-fiberid in the top left hand corner
+    {
+        var plate = parseInt(document.getElementById("pipeParams_PLATE").innerHTML);
+        var mjd = parseInt(document.getElementById("pipeParams_MJD").innerHTML);
+        var fiberid = parseInt(document.getElementById("pipeParams_FIBERID").innerHTML);
+        var run2d = document.getElementById("pipeParams_RUN2D").innerHTML;
+        ctx.font = "18px Arial";
+        ctx.textAlign = "left";
+        ctx.beginPath();
+        var str_label = ("0000" + plate).slice(-4) + "-" + mjd + "-" + ("0000" + fiberid).slice(-4) + " (" + run2d + ")";
+        ctx.fillText(str_label, 5.0+xsize*0.005, 10.0+ysize*0.01);
+        ctx.stroke();
+        ctx.closePath();
+        ctx.font = "14px Arial";
+        ctx.textAlign = "center";
+    }
+    
     //now draw wavelengths of common lines
     if ( document.getElementById("ToggleLines").checked )
     {