Change the name of renderedZone to renderThreshold.

src/canvas/textFeature.js

@@ -99,7 +99,7 @@ var canvas_textFeature = function (arg) {
   this._renderOnCanvas = function (context2d, map) {
     var data = m_this.data(),
         posFunc = m_this.style.get('position'),
-        renderedZone = m_this.style.get('renderedZone')(data),
+        renderThreshold = m_this.style.get('renderThreshold')(data),
         textFunc = m_this.style.get('text'),
         mapRotation = map.rotation(),
         mapZoom = map.zoom(),
@@ -125,9 +125,9 @@ var canvas_textFeature = function (arg) {
        * render it, even if the offset of size would be sufficient to make it
        * appear in the viewport. */
       pos = posArray[i];
-      if (renderedZone > 0 && (
-          pos.x < -renderedZone || pos.x > mapSize.width + renderedZone ||
-          pos.y < -renderedZone || pos.y > mapSize.height + renderedZone)) {
+      if (renderThreshold > 0 && (
+          pos.x < -renderThreshold || pos.x > mapSize.width + renderThreshold ||
+          pos.y < -renderThreshold || pos.y > mapSize.height + renderThreshold)) {
         return;
       }
       visible = m_this.style.get('visible')(d, i);

src/textFeature.js

@@ -60,7 +60,7 @@ var feature = require('./feature');
  *      stroke color.  May include opacity.
  * @property {geo.geoColor|function} [style.textStrokeWidth=0] Text stroke
  *      width in pixels.
- * @property {number|function} [style.renderedZone] If this is a positive
+ * @property {number|function} [style.renderThreshold] If this is a positive
  *      number, text elements may not be rendered if their base position
  *      (before offset and font effects are applied) is more than this distance
  *      in pixels outside of the current viewport.  If it is known that such

tests/cases/textFeature.js

@@ -198,7 +198,7 @@ describe('geo.textFeature', function () {
       expect(text.getFontFromStyles(true, text.data()[3], 3)).toBe('italic small-caps bold condensed 40px/60px serif');
       expect(text.getFontFromStyles(true, text.data()[11], 11)).toBe('bold 16px/60px sans-serif');
     });
-    it('renderedZone', function () {
+    it('renderThreshold', function () {
       mockAnimationFrame();
       logCanvas2D();
       map = createMap();
@@ -207,22 +207,22 @@ describe('geo.textFeature', function () {
       text.draw();
       stepAnimationFrame();
       var count1 = $.extend({}, window._canvasLog.counts).fillText;
-      text.style({renderedZone: 0});
+      text.style({renderThreshold: 0});
       text.draw();
       stepAnimationFrame();
       var count2 = $.extend({}, window._canvasLog.counts).fillText;
       expect(count2 - count1).toBe(14);
-      text.style({renderedZone: 1});
+      text.style({renderThreshold: 1});
       text.draw();
       stepAnimationFrame();
       var count3 = $.extend({}, window._canvasLog.counts).fillText;
       expect(count3 - count2).toBe(6);
-      text.style({renderedZone: 20});
+      text.style({renderThreshold: 20});
       text.draw();
       stepAnimationFrame();
       var count4 = $.extend({}, window._canvasLog.counts).fillText;
       expect(count4 - count3).toBe(8);
-      text.style({renderedZone: 0});
+      text.style({renderThreshold: 0});
       text.draw();
       stepAnimationFrame();
       var count5 = $.extend({}, window._canvasLog.counts).fillText;