Index: /issm/trunk-jpl/src/m/plot/webgl.js
===================================================================
--- /issm/trunk-jpl/src/m/plot/webgl.js	(revision 20354)
+++ /issm/trunk-jpl/src/m/plot/webgl.js	(revision 20355)
@@ -34,6 +34,7 @@
 	// Add context state variables
 	//TODO:Group variables in objects for organization and naming
-	canvas.zoomBounds = options.getfieldvalue('zoombounds',[0,100.0]);
+	canvas.zoomBounds = options.getfieldvalue('zoombounds',[0.001,100.0]);
 	canvas.zoomFactor = clamp(options.getfieldvalue('zoomfactor',1.0), canvas.zoomBounds[0], canvas.zoomBounds[1]);
+	console.log(canvas.zoomFactor);
 	canvas.zoomLast = canvas.zoomFactor;
 	canvas.cameraMatrix = mat4.create();
@@ -363,6 +364,6 @@
 function onZoom(ev,canvas,displaylog) { //{{{
 	ev.preventDefault();
-	var delta = 1/10 * clamp(ev.scale || ev.wheelDelta || -ev.detail, -1, 1);
-	canvas.zoomFactor = clamp(canvas.zoomFactor + delta / canvas.zoomFactor, canvas.zoomBounds[0], canvas.zoomBounds[1]);
+	var delta = clamp(clamp(ev.scale || ev.wheelDelta || -ev.detail, -1, 1) / (1000  * canvas.zoomFactor), -0.1, 0.1);
+	canvas.zoomFactor = clamp(canvas.zoomFactor + delta, canvas.zoomBounds[0], canvas.zoomBounds[1]);
 	
 	if (displaylog) console.log(canvas.zoomFactor);