pass textAlign: 'center' option to text-cache for axis labels

- using gl-vis/text-cache#2

Author: etpinard

lib/text.js

@@ -236,7 +236,7 @@ proto.update = function(options) {
   for(var dimension=0; dimension<2; ++dimension) {
     this.labelOffset[dimension] = Math.floor(vertices.length/3)
 
-    var data  = getText(options.labelFont[dimension], options.labels[dimension]).data
+    var data  = getText(options.labelFont[dimension], options.labels[dimension], { textAlign: 'center' }).data
     var scale = options.labelSize[dimension]
     for(var i=0; i<data.length; i+=2) {
       vertices.push(data[i]*scale, -data[i+1]*scale, 0)

package.json

@@ -18,7 +18,7 @@
     "gl-shader": "^4.2.1",
     "glsl-inverse": "^1.0.0",
     "glslify": "^2.2.1",
-    "text-cache": "^4.0.0"
+    "text-cache": "^4.1.0"
   },
   "devDependencies": {
     "camera-2d": "^1.0.0",