build

dist/torque.full.uncompressed.js

@@ -3181,7 +3181,19 @@ var Profiler = require('../profiler');
       // reserve memory for all the dates
       var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
       var timeCount = new Int32Array(maxDateSlots + 1);
-      var renderData = new (this.options.valueDataType || type)(dates);
+
+      var val_keys = []
+      if(rows.length>0){
+        val_keys = Object.keys(rows[0]).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+      }
+
+
+      var renderData = []
+
+      val_keys.forEach(function(key,index){
+        renderData[index] = new (this.options.valueDataType || type)(dates);
+      }.bind(this))
+
       var renderDataPos = new Uint32Array(dates);
 
       prof_mem.inc(
@@ -3208,15 +3220,31 @@ var Profiler = require('../profiler');
         }
 
         var dates = row.dates__uint16;
-        var vals = row.vals__uint8;
+        var val_keys = Object.keys(row).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+        var val_arr = []
+
+
+        val_keys.forEach(function(key){
+          var i = (key=='vals_uint8' ? 0 :  key.match(/vals__uint8_(\d+)/)[1])
+          val_arr[i] = row[key];
+        })
+
+
         if (!this.options.cumulative) {
           for (var j = 0, len = dates.length; j < len; ++j) {
               var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
-              if(this.options.cumulative) {
-                  vals[j] += prev_val;
-              }
-              prev_val = vals[j];
-              rr.push([r, vals[j]]);
+              //Stuart: Not sure I understand why this is here?
+              // if(this.options.cumulative) {
+              //     vals[j] += prev_val;
+              // }
+
+              // prev_val = vals[j];
+              var all_vals = []
+              val_arr.forEach(function(vals){
+                all_vals.push(vals[j])
+              })
+              rr.push([r, all_vals]);
+
           }
         } else {
           var valByDate = {}
@@ -3245,6 +3273,7 @@ var Profiler = require('../profiler');
 
       }
 
+
       // for each timeslot search active buckets
       var renderDataIndex = 0;
       var timeSlotIndex = 0;
@@ -3254,10 +3283,13 @@ var Profiler = require('../profiler');
         var slotRows = rowsPerSlot[i]
         if(slotRows) {
           for (var r = 0; r < slotRows.length; ++r) {
+
             var rr = slotRows[r];
             ++c;
             renderDataPos[renderDataIndex] = rr[0]
-            renderData[renderDataIndex] = rr[1];
+            rr[1].forEach(function(rrr,index){
+              renderData[index][renderDataIndex] = rrr;
+            })
             ++renderDataIndex;
           }
         }
@@ -3346,7 +3378,6 @@ var Profiler = require('../profiler');
         subdomains = [null]; // no subdomain
       }
 
-
       var url;
       if (options.no_cdn) {
         url = this._host();
@@ -3363,6 +3394,7 @@ var Profiler = require('../profiler');
     },
 
     getTileData: function(coord, zoom, callback) {
+
       if(!this._ready) {
         this._tileQueue.push([coord, zoom, callback]);
       } else {
@@ -3394,6 +3426,14 @@ var Profiler = require('../profiler');
 
       var column_conv = this.options.column;
 
+      var agg_columns;
+      if(this.options.countby.indexOf(";") > 0){
+        agg_columns = this.options.countby.split(";")
+      }
+      else{
+        agg_columns = [this.options.countby]
+      }
+
       if(this.options.is_time) {
         column_conv = format("date_part('epoch', {column})", this.options);
       }
@@ -3406,8 +3446,13 @@ var Profiler = require('../profiler');
         ", CDB_XYZ_Extent({x}, {y}, {zoom}) as ext "  +
         ")," +
         "cte AS ( "+
-        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g" +
-        ", {countby} c" +
+        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", "+col+" c"+index
+        }.bind(this))
+
+        sql = sql +
         ", floor(({column_conv} - {start})/{step}) d" +
         "  FROM ({_sql}) i, par p " +
         "  WHERE i.the_geom_webmercator && p.ext " +
@@ -3415,14 +3460,20 @@ var Profiler = require('../profiler');
         ") " +
         "" +
         "SELECT (st_x(g)-st_xmin(p.ext))/p.res x__uint8, " +
-        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8," +
-        " array_agg(c) vals__uint8," +
-        " array_agg(d) dates__uint16" +
+        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", array_agg(c"+index+") vals__uint8_"+index
+        }.bind(this))
+
+        sql = sql +
+        ", array_agg(d) dates__uint16" +
         // the tile_size where are needed because the overlaps query in cte subquery includes the points
         // in the left and bottom borders of the tile
         " FROM cte, par p where (st_y(g)-st_ymin(p.ext))/p.res < tile_size and (st_x(g)-st_xmin(p.ext))/p.res < tile_size GROUP BY x__uint8, y__uint8";
 
 
+
       var query = format(sql, this.options, {
         zoom: zoom,
         x: coord.x,
@@ -3431,6 +3482,7 @@ var Profiler = require('../profiler');
         _sql: this.getSQL()
       });
 
+
       var self = this;
       this.sql(query, function (data) {
         if (data) {
@@ -4442,6 +4494,31 @@ var Profiler = require('../profiler');
     }
   }
 
+  function renderVector(ctx, st){
+      var angle = st['marker-angle']
+      var color = st['marker-stroke']
+      var mag   = st['marker-mag']
+      var max_mag   = st['marker-max-mag'] ?  st['marker-max-mag'] : 10
+      var max_line_length = st['marker-width']
+
+      var scaled_mag = (mag/max_mag)*max_line_length
+
+      ctx.lineWidth = 2
+
+      // ctx.strokeStyle='green'
+      // ctx.strokeRect(-max_line_length,-max_line_length,max_line_length*2,max_line_length*2)
+      // ctx.translate(max_line_length/2.0, 0)
+      ctx.rotate(angle)
+      ctx.strokeStyle = color
+
+      ctx.moveTo(0,-max_line_length*2)
+      ctx.lineTo(0,max_line_length*2)
+      ctx.stroke();
+
+
+    }
+
+
   function renderRectangle(ctx, st) {
     ctx.fillStyle = st['marker-fill'];
     var pixel_size = st['marker-width'];
@@ -4473,6 +4550,20 @@ var Profiler = require('../profiler');
     }
   }
 
+  function renderText(ctx,st){
+    var width = st['marker-width']
+
+    var text = st['text-name']
+    var font = st['text-face-name'] ? st['text-face-name'] : 'Droid Sans Regular'
+    var textSize = st['text-size'] ? st['text-size'] : '10px'
+    var color    = st['text-fill'] ? st['text-fill'] : 'white'
+
+    // ctx.font = textSize+"px "+font
+    ctx.fillStyle = color
+    ctx.font= textSize + " " + font
+    ctx.fillText(text, -width/2.0, width/2.0 )
+  }
+
   function renderSprite(ctx, img, st) {
 
     if(img.complete){
@@ -4487,6 +4578,8 @@ module.exports = {
     renderPoint: renderPoint,
     renderSprite: renderSprite,
     renderRectangle: renderRectangle,
+    renderVector: renderVector,
+    renderText: renderText,
     MAX_SPRITE_RADIUS: MAX_SPRITE_RADIUS
 };
 
@@ -4594,6 +4687,7 @@ var Filters = require('./torque_filters');
 
     setShader: function(shader) {
       // clean sprites
+
       this._sprites = [];
       this._shader = shader;
       this._Map = this._shader.getDefault().getStyle({}, { zoom: 0 });
@@ -4605,6 +4699,30 @@ var Filters = require('./torque_filters');
       this._sprites = [];
     },
 
+    processScaleFunction:function(input, opts){
+
+      if(typeof(input)!='string'){
+        return input;
+      }
+
+      var matches = input.match(/scale_(.*)\((.*)\)/)
+      if(matches){
+        var type = matches[1];
+        var params = matches[2].split(",");
+
+        var variable  = params[0]
+        var domain = params.slice(1,3);
+        var range  = params.slice(3,params.length);
+
+        var scale = {lin: d3.scale.linear, log: d3.scale.log, quant: d3.scale.quantize, sqrt: d3.scale.sqrt}[type]
+
+        var s = scale().domain(domain).range(range)
+        return s(opts[variable])
+      }
+      else{
+        return input;
+      }
+    },
 
     //
     // generate sprite based on cartocss style
@@ -4612,9 +4730,31 @@ var Filters = require('./torque_filters');
     generateSprite: function(shader, value, shaderVars) {
       var self = this;
       var prof = Profiler.metric('torque.renderer.point.generateSprite').start();
-      var st = shader.getStyle({
-        value: value
-      }, shaderVars);
+
+      var values = {}
+      if(value.length ==1){
+        values["value"] = value[0]
+      }
+      else{
+        value.forEach(function(val,index){
+          values["value"+index] = val;
+        })
+      }
+
+
+      var st = shader.getStyle(values, shaderVars);
+
+      var processingVars = {}
+      for(var key in shaderVars){ processingVars[key]= shaderVars[key]}
+      for(var key in values){processingVars[key] = values[key]}
+
+      var varsToProcess = ['marker-width', 'marker-fill-opacity', 'marker-fill', 'marker-stroke', 'marker-angle', 'marker-mag']
+      varsToProcess.forEach(function(key){
+        if(st[key]){
+          st[key] = this.processScaleFunction(st[key], processingVars)
+        }
+      }.bind(this))
+
       if(this._style === null || this._style !== st){
         this._style = st;
       }
@@ -4655,10 +4795,23 @@ var Filters = require('./torque_filters');
         var mt = st['marker-type'];
         if (mt && mt === 'rectangle') {
           cartocss.renderRectangle(ctx, st);
-        } else {
+        } else if(mt && mt === 'vector') {
+          cartocss.renderVector(ctx,st);
+        }
+        else{
           cartocss.renderPoint(ctx, st);
         }
       }
+
+      if(st['text-name']){
+        var captures = st['text-name'].match(/\{\{(.*)\}\}/)
+        captures.slice(1,captures.length).forEach(function(rep){
+          st['text-name'] = st['text-name'].replace("{{"+rep+"}}", values[rep])
+        })
+        // st['text-name'] = st['text-name'].replace("{{value}}",value)
+        cartocss.renderText(ctx,st)
+      }
+
       prof.end(true);
       if (torque.flags.sprites_to_images) {
         var i = this._createImage();
@@ -4760,7 +4913,7 @@ var Filters = require('./torque_filters');
         var pixelIndex = tile.timeIndex[key];
         for(var p = 0; p < activePixels; ++p) {
           var posIdx = tile.renderDataPos[pixelIndex + p];
-          var c = tile.renderData[pixelIndex + p];
+          var c = tile.renderData.map(function(a){return a[pixelIndex + p]});
           if (c) {
            var sp = sprites[c];
            if (sp === undefined) {
@@ -4826,7 +4979,9 @@ var Filters = require('./torque_filters');
       var pixelIndex = tile.timeIndex[step];
       for(var p = 0; p < activePixels; ++p) {
         var posIdx = tile.renderDataPos[pixelIndex + p];
-        var c = tile.renderData[pixelIndex + p];
+
+        var c =tile.renderData.map(function(r){ return r[pixelIndex + p]})
+
         if (c) {
          var x = tile.x[posIdx];
          var y = tileMax - tile.y[posIdx];
@@ -13932,7 +14087,7 @@ module.exports={
   "url": "https://github.com/cartodb/carto",
   "repository": {
     "type": "git",
-    "url": "http://github.com/cartodb/carto.git"
+    "url": "git+ssh://git@github.com/cartodb/carto.git"
   },
   "author": {
     "name": "CartoDB",
@@ -14003,7 +14158,7 @@ module.exports={
   "bugs": {
     "url": "https://github.com/cartodb/carto/issues"
   },
-  "homepage": "https://github.com/cartodb/carto",
+  "homepage": "https://github.com/cartodb/carto#readme",
   "_id": "carto@0.15.1-cdb1",
   "_shasum": "62534c2975cbee073f10c6c14a0c7e889c9469e7",
   "_resolved": "https://github.com/CartoDB/carto/archive/master.tar.gz",

dist/torque.uncompressed.js

@@ -3188,7 +3188,19 @@ var Profiler = require('../profiler');
       // reserve memory for all the dates
       var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
       var timeCount = new Int32Array(maxDateSlots + 1);
-      var renderData = new (this.options.valueDataType || type)(dates);
+
+      var val_keys = []
+      if(rows.length>0){
+        val_keys = Object.keys(rows[0]).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+      }
+
+
+      var renderData = []
+
+      val_keys.forEach(function(key,index){
+        renderData[index] = new (this.options.valueDataType || type)(dates);
+      }.bind(this))
+
       var renderDataPos = new Uint32Array(dates);
 
       prof_mem.inc(
@@ -3215,15 +3227,31 @@ var Profiler = require('../profiler');
         }
 
         var dates = row.dates__uint16;
-        var vals = row.vals__uint8;
+        var val_keys = Object.keys(row).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+        var val_arr = []
+
+
+        val_keys.forEach(function(key){
+          var i = (key=='vals_uint8' ? 0 :  key.match(/vals__uint8_(\d+)/)[1])
+          val_arr[i] = row[key];
+        })
+
+
         if (!this.options.cumulative) {
           for (var j = 0, len = dates.length; j < len; ++j) {
               var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
-              if(this.options.cumulative) {
-                  vals[j] += prev_val;
-              }
-              prev_val = vals[j];
-              rr.push([r, vals[j]]);
+              //Stuart: Not sure I understand why this is here?
+              // if(this.options.cumulative) {
+              //     vals[j] += prev_val;
+              // }
+
+              // prev_val = vals[j];
+              var all_vals = []
+              val_arr.forEach(function(vals){
+                all_vals.push(vals[j])
+              })
+              rr.push([r, all_vals]);
+
           }
         } else {
           var valByDate = {}
@@ -3252,6 +3280,7 @@ var Profiler = require('../profiler');
 
       }
 
+
       // for each timeslot search active buckets
       var renderDataIndex = 0;
       var timeSlotIndex = 0;
@@ -3261,10 +3290,13 @@ var Profiler = require('../profiler');
         var slotRows = rowsPerSlot[i]
         if(slotRows) {
           for (var r = 0; r < slotRows.length; ++r) {
+
             var rr = slotRows[r];
             ++c;
             renderDataPos[renderDataIndex] = rr[0]
-            renderData[renderDataIndex] = rr[1];
+            rr[1].forEach(function(rrr,index){
+              renderData[index][renderDataIndex] = rrr;
+            })
             ++renderDataIndex;
           }
         }
@@ -3353,7 +3385,6 @@ var Profiler = require('../profiler');
         subdomains = [null]; // no subdomain
       }
 
-
       var url;
       if (options.no_cdn) {
         url = this._host();
@@ -3370,6 +3401,7 @@ var Profiler = require('../profiler');
     },
 
     getTileData: function(coord, zoom, callback) {
+
       if(!this._ready) {
         this._tileQueue.push([coord, zoom, callback]);
       } else {
@@ -3401,6 +3433,14 @@ var Profiler = require('../profiler');
 
       var column_conv = this.options.column;
 
+      var agg_columns;
+      if(this.options.countby.indexOf(";") > 0){
+        agg_columns = this.options.countby.split(";")
+      }
+      else{
+        agg_columns = [this.options.countby]
+      }
+
       if(this.options.is_time) {
         column_conv = format("date_part('epoch', {column})", this.options);
       }
@@ -3413,8 +3453,13 @@ var Profiler = require('../profiler');
         ", CDB_XYZ_Extent({x}, {y}, {zoom}) as ext "  +
         ")," +
         "cte AS ( "+
-        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g" +
-        ", {countby} c" +
+        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", "+col+" c"+index
+        }.bind(this))
+
+        sql = sql +
         ", floor(({column_conv} - {start})/{step}) d" +
         "  FROM ({_sql}) i, par p " +
         "  WHERE i.the_geom_webmercator && p.ext " +
@@ -3422,14 +3467,20 @@ var Profiler = require('../profiler');
         ") " +
         "" +
         "SELECT (st_x(g)-st_xmin(p.ext))/p.res x__uint8, " +
-        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8," +
-        " array_agg(c) vals__uint8," +
-        " array_agg(d) dates__uint16" +
+        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", array_agg(c"+index+") vals__uint8_"+index
+        }.bind(this))
+
+        sql = sql +
+        ", array_agg(d) dates__uint16" +
         // the tile_size where are needed because the overlaps query in cte subquery includes the points
         // in the left and bottom borders of the tile
         " FROM cte, par p where (st_y(g)-st_ymin(p.ext))/p.res < tile_size and (st_x(g)-st_xmin(p.ext))/p.res < tile_size GROUP BY x__uint8, y__uint8";
 
 
+
       var query = format(sql, this.options, {
         zoom: zoom,
         x: coord.x,
@@ -3438,6 +3489,7 @@ var Profiler = require('../profiler');
         _sql: this.getSQL()
       });
 
+
       var self = this;
       this.sql(query, function (data) {
         if (data) {
@@ -4449,6 +4501,31 @@ var Profiler = require('../profiler');
     }
   }
 
+  function renderVector(ctx, st){
+      var angle = st['marker-angle']
+      var color = st['marker-stroke']
+      var mag   = st['marker-mag']
+      var max_mag   = st['marker-max-mag'] ?  st['marker-max-mag'] : 10
+      var max_line_length = st['marker-width']
+
+      var scaled_mag = (mag/max_mag)*max_line_length
+
+      ctx.lineWidth = 2
+
+      // ctx.strokeStyle='green'
+      // ctx.strokeRect(-max_line_length,-max_line_length,max_line_length*2,max_line_length*2)
+      // ctx.translate(max_line_length/2.0, 0)
+      ctx.rotate(angle)
+      ctx.strokeStyle = color
+
+      ctx.moveTo(0,-max_line_length*2)
+      ctx.lineTo(0,max_line_length*2)
+      ctx.stroke();
+
+
+    }
+
+
   function renderRectangle(ctx, st) {
     ctx.fillStyle = st['marker-fill'];
     var pixel_size = st['marker-width'];
@@ -4480,6 +4557,20 @@ var Profiler = require('../profiler');
     }
   }
 
+  function renderText(ctx,st){
+    var width = st['marker-width']
+
+    var text = st['text-name']
+    var font = st['text-face-name'] ? st['text-face-name'] : 'Droid Sans Regular'
+    var textSize = st['text-size'] ? st['text-size'] : '10px'
+    var color    = st['text-fill'] ? st['text-fill'] : 'white'
+
+    // ctx.font = textSize+"px "+font
+    ctx.fillStyle = color
+    ctx.font= textSize + " " + font
+    ctx.fillText(text, -width/2.0, width/2.0 )
+  }
+
   function renderSprite(ctx, img, st) {
 
     if(img.complete){
@@ -4494,6 +4585,8 @@ module.exports = {
     renderPoint: renderPoint,
     renderSprite: renderSprite,
     renderRectangle: renderRectangle,
+    renderVector: renderVector,
+    renderText: renderText,
     MAX_SPRITE_RADIUS: MAX_SPRITE_RADIUS
 };
 
@@ -4601,6 +4694,7 @@ var Filters = require('./torque_filters');
 
     setShader: function(shader) {
       // clean sprites
+
       this._sprites = [];
       this._shader = shader;
       this._Map = this._shader.getDefault().getStyle({}, { zoom: 0 });
@@ -4612,6 +4706,30 @@ var Filters = require('./torque_filters');
       this._sprites = [];
     },
 
+    processScaleFunction:function(input, opts){
+
+      if(typeof(input)!='string'){
+        return input;
+      }
+
+      var matches = input.match(/scale_(.*)\((.*)\)/)
+      if(matches){
+        var type = matches[1];
+        var params = matches[2].split(",");
+
+        var variable  = params[0]
+        var domain = params.slice(1,3);
+        var range  = params.slice(3,params.length);
+
+        var scale = {lin: d3.scale.linear, log: d3.scale.log, quant: d3.scale.quantize, sqrt: d3.scale.sqrt}[type]
+
+        var s = scale().domain(domain).range(range)
+        return s(opts[variable])
+      }
+      else{
+        return input;
+      }
+    },
 
     //
     // generate sprite based on cartocss style
@@ -4619,9 +4737,31 @@ var Filters = require('./torque_filters');
     generateSprite: function(shader, value, shaderVars) {
       var self = this;
       var prof = Profiler.metric('torque.renderer.point.generateSprite').start();
-      var st = shader.getStyle({
-        value: value
-      }, shaderVars);
+
+      var values = {}
+      if(value.length ==1){
+        values["value"] = value[0]
+      }
+      else{
+        value.forEach(function(val,index){
+          values["value"+index] = val;
+        })
+      }
+
+
+      var st = shader.getStyle(values, shaderVars);
+
+      var processingVars = {}
+      for(var key in shaderVars){ processingVars[key]= shaderVars[key]}
+      for(var key in values){processingVars[key] = values[key]}
+
+      var varsToProcess = ['marker-width', 'marker-fill-opacity', 'marker-fill', 'marker-stroke', 'marker-angle', 'marker-mag']
+      varsToProcess.forEach(function(key){
+        if(st[key]){
+          st[key] = this.processScaleFunction(st[key], processingVars)
+        }
+      }.bind(this))
+
       if(this._style === null || this._style !== st){
         this._style = st;
       }
@@ -4662,10 +4802,23 @@ var Filters = require('./torque_filters');
         var mt = st['marker-type'];
         if (mt && mt === 'rectangle') {
           cartocss.renderRectangle(ctx, st);
-        } else {
+        } else if(mt && mt === 'vector') {
+          cartocss.renderVector(ctx,st);
+        }
+        else{
           cartocss.renderPoint(ctx, st);
         }
       }
+
+      if(st['text-name']){
+        var captures = st['text-name'].match(/\{\{(.*)\}\}/)
+        captures.slice(1,captures.length).forEach(function(rep){
+          st['text-name'] = st['text-name'].replace("{{"+rep+"}}", values[rep])
+        })
+        // st['text-name'] = st['text-name'].replace("{{value}}",value)
+        cartocss.renderText(ctx,st)
+      }
+
       prof.end(true);
       if (torque.flags.sprites_to_images) {
         var i = this._createImage();
@@ -4767,7 +4920,7 @@ var Filters = require('./torque_filters');
         var pixelIndex = tile.timeIndex[key];
         for(var p = 0; p < activePixels; ++p) {
           var posIdx = tile.renderDataPos[pixelIndex + p];
-          var c = tile.renderData[pixelIndex + p];
+          var c = tile.renderData.map(function(a){return a[pixelIndex + p]});
           if (c) {
            var sp = sprites[c];
            if (sp === undefined) {
@@ -4833,7 +4986,9 @@ var Filters = require('./torque_filters');
       var pixelIndex = tile.timeIndex[step];
       for(var p = 0; p < activePixels; ++p) {
         var posIdx = tile.renderDataPos[pixelIndex + p];
-        var c = tile.renderData[pixelIndex + p];
+
+        var c =tile.renderData.map(function(r){ return r[pixelIndex + p]})
+
         if (c) {
          var x = tile.x[posIdx];
          var y = tileMax - tile.y[posIdx];

examples/leaflet_with_scaling_functions.html

@@ -0,0 +1,80 @@
+
+<html>
+  <link rel="stylesheet" href="vendor/leaflet.css" />
+  <style>
+    #map, html, body {
+      width: 100%; height: 100%; padding: 0; margin: 0;
+    }
+    #title {
+      position: absolute;
+      top: 100px;
+      left: 50px;
+      color: white;
+      font-size: 27px;
+      font-family: Helvetica, sans-serif;
+    }
+  </style>
+  <body>
+    <div id="map"></div>
+
+    <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
+
+    <script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
+    <script src="../../dist/torque.full.uncompressed.js"></script>
+
+
+    <script>
+      // define the torque layer style using cartocss
+      // this creates a kind of density map
+      //color scale from http://colorbrewer2.org/
+      var CARTOCSS = [
+          'Map {',
+          '-torque-time-attribute: "time";',
+          '-torque-aggregation-function: "avg(abs(depth));avg(mag)";',
+          '-torque-frame-count: 200;',
+          '-torque-animation-duration: 20;',
+          '-torque-resolution: 1',
+          '}',
+          '#all_month_3 {',
+          '  marker-width: "scale_lin(value0,0.0,10,0,5)";',
+          '  marker-fill-opacity: "scale_sqrt(frame-offset,0,9,1,0)";',
+          '  marker-type: ellipse;',
+          '  marker-fill: "scale_lin(value1,0.1,5,blue,red)";',
+          '}',
+          '#all_month_3[frame-offset=1]{}',
+          '#all_month_3[frame-offset=2]{}',
+          '#all_month_3[frame-offset=3]{}',
+          '#all_month_3[frame-offset=4]{}',
+          '#all_month_3[frame-offset=5]{}',
+          '#all_month_3[frame-offset=6]{}',
+          '#all_month_3[frame-offset=7]{}',
+          '#all_month_3[frame-offset=8]{}',
+          '#all_month_3[frame-offset=9]{}',
+      ].join('\n');
+
+
+      var map = new L.Map('map', {
+        zoomControl: true,
+        center: [40, 0],
+        zoom: 3
+      });
+
+      L.tileLayer('http://{s}.api.cartocdn.com/base-dark/{z}/{x}/{y}.png', {
+        attribution: 'CartoDB'
+      }).addTo(map);
+
+      var torqueLayer = new L.TorqueLayer({
+        user       : 'eschbacher',
+        table      : 'all_month_3',
+        provider   : 'sql_api',
+        cartocss: CARTOCSS
+      });
+      torqueLayer.addTo(map);
+      torqueLayer.play();
+
+
+
+    </script>
+  </body>
+</html>

examples/multi_variable_test.html

@@ -0,0 +1,152 @@
+
+<html>
+  <link rel="stylesheet" href="vendor/leaflet.css" />
+  <style>
+    #map, html, body {
+      width: 100%; height: 100%; padding: 0; margin: 0;
+    }
+    #title {
+      position: absolute;
+      top: 100px;
+      left: 50px;
+      color: white;
+      font-size: 27px;
+      font-family: Helvetica, sans-serif;
+    }
+  </style>
+  <body>
+    <div id="map"></div>
+
+    <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
+    <script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
+    <script src="../dist/torque.full.uncompressed.js"></script>
+
+
+    <script>
+      // define the torque layer style using cartocss
+      // this creates a kind of density map
+      //color scale from http://colorbrewer2.org/
+      var CARTOCSS = [
+          'Map {',
+          '-torque-time-attribute: "time";',
+          '-torque-aggregation-function: "avg(mag*10);avg(depth)";',
+          '-torque-frame-count: 256;',
+          '-torque-animation-duration: 30;',
+          '-torque-resolution: 1',
+          '}',
+          '#all_day {',
+          '  marker-width: 4;',
+          '  marker-fill-opacity: 0.7;',
+          '  marker-type: ellipse;',
+          'marker-fill: #FFFFB2;',
+          '}',
+          '#all_day [ value1 <= 250] {',
+          '  marker-width: 15.0;',
+          '}',
+          '#all_day [ value1 <= 50.15] {',
+          '  marker-width: 14.0;',
+          '}',
+          '#all_day [ value1 <= 18.5095] {',
+          '  marker-width: 13.0;',
+          '}',
+          '#all_day [ value1 <= 14.5909] {',
+          '  marker-width: 12.0;',
+          '}',
+          '#all_day [ value1 <= 11.785] {',
+          '  marker-width: 11.0;',
+          '}',
+          '#all_day [ value1 <= 9.30425] {',
+          '  marker-width: 10.0;',
+          '}',
+          '#all_day [ value1 <= 7.10635] {',
+          '  marker-width: 9.0;',
+          '}',
+          '#all_day [ value1 <= 5.4714] {',
+          '  marker-width: 8.0;',
+          '}',
+          '#all_day [ value1 <= 2.825] {',
+          '  marker-width: 7.0;',
+          '}',
+          '#all_day [ value1 <= 1.7035] {',
+          '  marker-width: 6.0;',
+          '}',
+          '#all_day [ value0 <= 80.2] {',
+          'marker-fill: #B10026;',
+          '}',
+          '#all_day [ value0 <= 60.2] {',
+            'marker-fill: #E31A1C;',
+          '}',
+          '#all_day [ value0 <= 40.58] {',
+            'marker-fill: #FC4E2A;',
+          '}',
+          '#all_day [ value0 <= 30.92] {',
+            'marker-fill: #FD8D3C;',
+          '}',
+          '#all_day [ value0 <= 30.6] {',
+            'marker-fill: #FEB24C;',
+          '}',
+          '#all_day [ value0 <= 30.35] {',
+            'marker-fill: #FED976;',
+          '}',
+          '#all_day [ value0 <= 3.16] {',
+            'marker-fill: #FFFFB2;',
+          '}'
+
+      ].join('\n');
+
+
+      var map = new L.Map('map', {
+        zoomControl: true,
+        center: [40, 0],
+        zoom: 3
+      });
+
+      L.tileLayer('http://{s}.api.cartocdn.com/base-dark/{z}/{x}/{y}.png', {
+        attribution: 'CartoDB'
+      }).addTo(map);
+
+      var torqueLayer = new L.TorqueLayer({
+        user       : 'stuartlynn',
+        table      : 'quakes_2014',
+        provider   : 'sql_api',
+        cartocss: CARTOCSS
+      });
+      torqueLayer.addTo(map);
+      torqueLayer.play();
+
+      map.on('click', function(e) {
+        var p = e.containerPoint
+        var value = torqueLayer.getValueForPos(p.x, p.y);
+        if (value !== null) {
+          map.openPopup('average temperature: ' + value.value + "C", e.latlng);
+        }
+      });
+
+
+      // show small rectable and change cursor on hover
+      var hover = null;
+      map.on('mousemove', function(e) {
+        var p = e.containerPoint
+        var value = torqueLayer.getValueForPos(p.x, p.y);
+
+        // remove previous hover box
+        if (hover) {
+          map.removeLayer(hover);
+          hover = null;
+        }
+
+        if (value !== null) {
+          hover = L.rectangle(value.bbox, {
+            color: '#000',
+            weight: 1
+          }).addTo(map);
+          map._container.style.cursor = 'pointer';
+        } else {
+          map._container.style.cursor = 'auto';
+        }
+      });
+
+
+    </script>
+  </body>
+</html>

examples/text_render_example.html

@@ -0,0 +1,113 @@
+
+<html>
+  <link rel="stylesheet" href="vendor/leaflet.css" />
+  <style>
+    #map, html, body {
+      width: 100%; height: 100%; padding: 0; margin: 0;
+    }
+    #title {
+      position: absolute;
+      top: 100px;
+      left: 50px;
+      color: white;
+      font-size: 27px;
+      font-family: Helvetica, sans-serif;
+    }
+  </style>
+  <body>
+    <div id="map"></div>
+    <div id="title">Average temperature collected by Britain's Royal Navy (1913-1925)</div>
+
+    <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
+    <script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
+    <script src="../dist/torque.full.uncompressed.js"></script>
+
+
+    <script>
+      // define the torque layer style using cartocss
+      // this creates a kind of density map
+      //color scale from http://colorbrewer2.org/
+      var CARTOCSS = [
+          'Map {',
+          '-torque-time-attribute: "date";',
+          '-torque-aggregation-function: "avg(temp::float)";',
+          '-torque-frame-count: 1;',
+          '-torque-animation-duration: 15;',
+          '-torque-resolution: 32',
+
+          '}',
+          '#layer {',
+          '  marker-width: 16;',
+          '  marker-fill-opacity: 1.0;',
+          '  marker-fill: #fff5eb; ',
+          '  marker-type: rectangle;',
+          'text-name: "{{value}}c";',
+          'text-face-name: "Arial";',
+          'text-fill: #036;',
+          'text-size: 100px;',
+          '  [value > 1] { marker-fill: #fee6ce; }',
+          '  [value > 2] { marker-fill: #fdd0a2; }',
+          '  [value > 4] { marker-fill: #fdae6b; }',
+          '  [value > 10] { marker-fill: #fd8d3c; }',
+          '  [value > 15] { marker-fill: #f16913; }',
+          '  [value > 20] { marker-fill: #d94801; }',
+          '  [value > 25] { marker-fill: #8c2d04; }',
+
+          '}'
+      ].join('\n');
+
+
+      var map = new L.Map('map', {
+        zoomControl: true,
+        center: [40, 0],
+        zoom: 3
+      });
+
+      L.tileLayer('http://{s}.api.cartocdn.com/base-dark/{z}/{x}/{y}.png', {
+        attribution: 'CartoDB'
+      }).addTo(map);
+
+      var torqueLayer = new L.TorqueLayer({
+        user       : 'viz2',
+        table      : 'ow',
+        provider   : 'sql_api',
+        cartocss: CARTOCSS
+      });
+      torqueLayer.addTo(map);
+
+      map.on('click', function(e) {
+        var p = e.containerPoint
+        var value = torqueLayer.getValueForPos(p.x, p.y);
+        if (value !== null) {
+          map.openPopup('average temperature: ' + value.value + "C", e.latlng);
+        }
+      });
+
+
+      // show small rectable and change cursor on hover
+      var hover = null;
+      map.on('mousemove', function(e) {
+        var p = e.containerPoint
+        var value = torqueLayer.getValueForPos(p.x, p.y);
+
+        // remove previous hover box
+        if (hover) {
+          map.removeLayer(hover);
+          hover = null;
+        }
+
+        if (value !== null) {
+          hover = L.rectangle(value.bbox, {
+            color: '#000',
+            weight: 1
+          }).addTo(map);
+          map._container.style.cursor = 'pointer';
+        } else {
+          map._container.style.cursor = 'auto';
+        }
+      });
+
+
+    </script>
+  </body>
+</html>

examples/vector_test.html

@@ -0,0 +1,78 @@
+
+<html>
+  <link rel="stylesheet" href="vendor/leaflet.css" />
+  <style>
+    #map, html, body {
+      width: 100%; height: 100%; padding: 0; margin: 0;
+    }
+    #title {
+      position: absolute;
+      top: 100px;
+      left: 50px;
+      color: white;
+      font-size: 27px;
+      font-family: Helvetica, sans-serif;
+    }
+  </style>
+  <body>
+    <div id="map"></div>
+    <div id="title">Example wind map using torque vector</div>
+
+    <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
+    <script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
+
+    <script src="../dist/torque.full.uncompressed.js"></script>
+
+
+    <script>
+      // define the torque layer style using cartocss
+      // this creates a kind of density map
+      //color scale from http://colorbrewer2.org/
+      var CARTOCSS = [
+        'Map {',
+        '  -torque-frame-count:1;',
+        '  -torque-animation-duration:1;',
+        '  -torque-time-attribute:"date";',
+        '  -torque-aggregation-function: "avg(angle*40);avg(mag)";',
+        '  -torque-resolution:4;',
+        '  -torque-data-aggregation:linear;',
+        '}',
+          '#wind {',
+          '  marker-width: 5;',
+          '  marker-fill-opacity: 1.0;',
+          '  marker-max-mag: 7; ',
+          '  marker-type: vector;',
+          '  marker-mag: "scale_log(value1, 0,61.76,0,7)";',
+          '  marker-stroke : "scale_log(value1,0.1,61.76,#FFFFB2,#B10026)";',
+          '  marker-angle : "scale_lin(value0,0,255,0,6.283185)";',
+          '}'
+
+      ]
+
+      CARTOCSS = CARTOCSS.join("\n")
+      var map = new L.Map('map', {
+        zoomControl: true,
+        center: [40, 0],
+        zoom: 3
+      });
+
+      L.tileLayer('http://{s}.api.cartocdn.com/base-dark/{z}/{x}/{y}.png', {
+        attribution: 'CartoDB'
+      }).addTo(map);
+
+      var torqueLayer = new L.TorqueLayer({
+        user       : 'stuartlynn',
+        table      : 'wind',
+        provider   : 'sql_api',
+        cartocss: CARTOCSS
+      });
+
+      torqueLayer.addTo(map);
+      torqueLayer.play();
+
+
+
+    </script>
+  </body>
+</html>

lib/torque/provider/json.js

@@ -80,7 +80,19 @@ var Profiler = require('../profiler');
       // reserve memory for all the dates
       var timeIndex = new Int32Array(maxDateSlots + 1); //index-size
       var timeCount = new Int32Array(maxDateSlots + 1);
-      var renderData = new (this.options.valueDataType || type)(dates);
+
+      var val_keys = []
+      if(rows.length>0){
+        val_keys = Object.keys(rows[0]).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+      }
+
+
+      var renderData = []
+
+      val_keys.forEach(function(key,index){
+        renderData[index] = new (this.options.valueDataType || type)(dates);
+      }.bind(this))
+
       var renderDataPos = new Uint32Array(dates);
 
       prof_mem.inc(
@@ -107,15 +119,29 @@ var Profiler = require('../profiler');
         }
 
         var dates = row.dates__uint16;
-        var vals = row.vals__uint8;
+        var val_keys = Object.keys(row).filter(function(k){return (k.indexOf("vals__uint8") > -1) })
+        var val_arr = []
+
+        val_keys.forEach(function(key){
+          var i = (key=='vals_uint8' ? 0 :  key.match(/vals__uint8_(\d+)/)[1])
+          val_arr[i] = row[key];
+        })
+
         if (!this.options.cumulative) {
           for (var j = 0, len = dates.length; j < len; ++j) {
               var rr = rowsPerSlot[dates[j]] || (rowsPerSlot[dates[j]] = []);
-              if(this.options.cumulative) {
-                  vals[j] += prev_val;
-              }
-              prev_val = vals[j];
-              rr.push([r, vals[j]]);
+              //Stuart: Not sure I understand why this is here?
+              // if(this.options.cumulative) {
+              //     vals[j] += prev_val;
+              // }
+
+              // prev_val = vals[j];
+              var all_vals = []
+              val_arr.forEach(function(vals){
+                all_vals.push(vals[j])
+              })
+              rr.push([r, all_vals]);
+
           }
         } else {
           var valByDate = {}
@@ -144,6 +170,7 @@ var Profiler = require('../profiler');
 
       }
 
+
       // for each timeslot search active buckets
       var renderDataIndex = 0;
       var timeSlotIndex = 0;
@@ -153,10 +180,13 @@ var Profiler = require('../profiler');
         var slotRows = rowsPerSlot[i]
         if(slotRows) {
           for (var r = 0; r < slotRows.length; ++r) {
+
             var rr = slotRows[r];
             ++c;
             renderDataPos[renderDataIndex] = rr[0]
-            renderData[renderDataIndex] = rr[1];
+            rr[1].forEach(function(rrr,index){
+              renderData[index][renderDataIndex] = rrr;
+            })
             ++renderDataIndex;
           }
         }
@@ -245,7 +275,6 @@ var Profiler = require('../profiler');
         subdomains = [null]; // no subdomain
       }
 
-
       var url;
       if (options.no_cdn) {
         url = this._host();
@@ -262,6 +291,7 @@ var Profiler = require('../profiler');
     },
 
     getTileData: function(coord, zoom, callback) {
+
       if(!this._ready) {
         this._tileQueue.push([coord, zoom, callback]);
       } else {
@@ -293,6 +323,14 @@ var Profiler = require('../profiler');
 
       var column_conv = this.options.column;
 
+      var agg_columns;
+      if(this.options.countby.indexOf(";") > 0){
+        agg_columns = this.options.countby.split(";")
+      }
+      else{
+        agg_columns = [this.options.countby]
+      }
+
       if(this.options.is_time) {
         column_conv = format("date_part('epoch', {column})", this.options);
       }
@@ -305,8 +343,13 @@ var Profiler = require('../profiler');
         ", CDB_XYZ_Extent({x}, {y}, {zoom}) as ext "  +
         ")," +
         "cte AS ( "+
-        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g" +
-        ", {countby} c" +
+        "  SELECT ST_SnapToGrid(i.the_geom_webmercator, p.res) g"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", "+col+" c"+index
+        }.bind(this))
+
+        sql = sql +
         ", floor(({column_conv} - {start})/{step}) d" +
         "  FROM ({_sql}) i, par p " +
         "  WHERE i.the_geom_webmercator && p.ext " +
@@ -314,14 +357,20 @@ var Profiler = require('../profiler');
         ") " +
         "" +
         "SELECT (st_x(g)-st_xmin(p.ext))/p.res x__uint8, " +
-        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8," +
-        " array_agg(c) vals__uint8," +
-        " array_agg(d) dates__uint16" +
+        "       (st_y(g)-st_ymin(p.ext))/p.res y__uint8"
+
+        agg_columns.forEach(function(col,index){
+          sql = sql + ", array_agg(c"+index+") vals__uint8_"+index
+        }.bind(this))
+
+        sql = sql +
+        ", array_agg(d) dates__uint16" +
         // the tile_size where are needed because the overlaps query in cte subquery includes the points
         // in the left and bottom borders of the tile
         " FROM cte, par p where (st_y(g)-st_ymin(p.ext))/p.res < tile_size and (st_x(g)-st_xmin(p.ext))/p.res < tile_size GROUP BY x__uint8, y__uint8";
 
 
+
       var query = format(sql, this.options, {
         zoom: zoom,
         x: coord.x,
@@ -330,6 +379,7 @@ var Profiler = require('../profiler');
         _sql: this.getSQL()
       });
 
+
       var self = this;
       this.sql(query, function (data) {
         if (data) {

lib/torque/renderer/cartocss_render.js

@@ -42,6 +42,31 @@
     }
   }
 
+  function renderVector(ctx, st){
+      var angle = st['marker-angle']
+      var color = st['marker-stroke']
+      var mag   = st['marker-mag']
+      var max_mag   = st['marker-max-mag'] ?  st['marker-max-mag'] : 10
+      var max_line_length = st['marker-width']
+
+      var scaled_mag = (mag/max_mag)*max_line_length
+
+      ctx.lineWidth = 2
+
+      // ctx.strokeStyle='green'
+      // ctx.strokeRect(-max_line_length,-max_line_length,max_line_length*2,max_line_length*2)
+      // ctx.translate(max_line_length/2.0, 0)
+      ctx.rotate(angle)
+      ctx.strokeStyle = color
+
+      ctx.moveTo(0,-max_line_length*2)
+      ctx.lineTo(0,max_line_length*2)
+      ctx.stroke();
+
+
+    }
+
+
   function renderRectangle(ctx, st) {
     ctx.fillStyle = st['marker-fill'];
     var pixel_size = st['marker-width'];
@@ -73,6 +98,20 @@
     }
   }
 
+  function renderText(ctx,st){
+    var width = st['marker-width']
+
+    var text = st['text-name']
+    var font = st['text-face-name'] ? st['text-face-name'] : 'Droid Sans Regular'
+    var textSize = st['text-size'] ? st['text-size'] : '10px'
+    var color    = st['text-fill'] ? st['text-fill'] : 'white'
+
+    // ctx.font = textSize+"px "+font
+    ctx.fillStyle = color
+    ctx.font= textSize + " " + font
+    ctx.fillText(text, -width/2.0, width/2.0 )
+  }
+
   function renderSprite(ctx, img, st) {
 
     if(img.complete){
@@ -87,5 +126,7 @@ module.exports = {
     renderPoint: renderPoint,
     renderSprite: renderSprite,
     renderRectangle: renderRectangle,
+    renderVector: renderVector,
+    renderText: renderText,
     MAX_SPRITE_RADIUS: MAX_SPRITE_RADIUS
 };

lib/torque/renderer/point.js

@@ -94,6 +94,7 @@ var Filters = require('./torque_filters');
 
     setShader: function(shader) {
       // clean sprites
+
       this._sprites = [];
       this._shader = shader;
       this._Map = this._shader.getDefault().getStyle({}, { zoom: 0 });
@@ -105,6 +106,30 @@ var Filters = require('./torque_filters');
       this._sprites = [];
     },
 
+    processScaleFunction:function(input, opts){
+
+      if(typeof(input)!='string'){
+        return input;
+      }
+
+      var matches = input.match(/scale_(.*)\((.*)\)/)
+      if(matches){
+        var type = matches[1];
+        var params = matches[2].split(",");
+
+        var variable  = params[0]
+        var domain = params.slice(1,3);
+        var range  = params.slice(3,params.length);
+
+        var scale = {lin: d3.scale.linear, log: d3.scale.log, quant: d3.scale.quantize, sqrt: d3.scale.sqrt}[type]
+
+        var s = scale().domain(domain).range(range)
+        return s(opts[variable])
+      }
+      else{
+        return input;
+      }
+    },
 
     //
     // generate sprite based on cartocss style
@@ -112,9 +137,31 @@ var Filters = require('./torque_filters');
     generateSprite: function(shader, value, shaderVars) {
       var self = this;
       var prof = Profiler.metric('torque.renderer.point.generateSprite').start();
-      var st = shader.getStyle({
-        value: value
-      }, shaderVars);
+
+      var values = {}
+      if(value.length ==1){
+        values["value"] = value[0]
+      }
+      else{
+        value.forEach(function(val,index){
+          values["value"+index] = val;
+        })
+      }
+
+
+      var st = shader.getStyle(values, shaderVars);
+
+      var processingVars = {}
+      for(var key in shaderVars){ processingVars[key]= shaderVars[key]}
+      for(var key in values){processingVars[key] = values[key]}
+
+      var varsToProcess = ['marker-width', 'marker-fill-opacity', 'marker-fill', 'marker-stroke', 'marker-angle', 'marker-mag']
+      varsToProcess.forEach(function(key){
+        if(st[key]){
+          st[key] = this.processScaleFunction(st[key], processingVars)
+        }
+      }.bind(this))
+
       if(this._style === null || this._style !== st){
         this._style = st;
       }
@@ -155,10 +202,23 @@ var Filters = require('./torque_filters');
         var mt = st['marker-type'];
         if (mt && mt === 'rectangle') {
           cartocss.renderRectangle(ctx, st);
-        } else {
+        } else if(mt && mt === 'vector') {
+          cartocss.renderVector(ctx,st);
+        }
+        else{
           cartocss.renderPoint(ctx, st);
         }
       }
+
+      if(st['text-name']){
+        var captures = st['text-name'].match(/\{\{(.*)\}\}/)
+        captures.slice(1,captures.length).forEach(function(rep){
+          st['text-name'] = st['text-name'].replace("{{"+rep+"}}", values[rep])
+        })
+        // st['text-name'] = st['text-name'].replace("{{value}}",value)
+        cartocss.renderText(ctx,st)
+      }
+
       prof.end(true);
       if (torque.flags.sprites_to_images) {
         var i = this._createImage();
@@ -260,7 +320,7 @@ var Filters = require('./torque_filters');
         var pixelIndex = tile.timeIndex[key];
         for(var p = 0; p < activePixels; ++p) {
           var posIdx = tile.renderDataPos[pixelIndex + p];
-          var c = tile.renderData[pixelIndex + p];
+          var c = tile.renderData.map(function(a){return a[pixelIndex + p]});
           if (c) {
            var sp = sprites[c];
            if (sp === undefined) {
@@ -326,7 +386,9 @@ var Filters = require('./torque_filters');
       var pixelIndex = tile.timeIndex[step];
       for(var p = 0; p < activePixels; ++p) {
         var posIdx = tile.renderDataPos[pixelIndex + p];
-        var c = tile.renderData[pixelIndex + p];
+
+        var c =tile.renderData.map(function(r){ return r[pixelIndex + p]})
+
         if (c) {
          var x = tile.x[posIdx];
          var y = tileMax - tile.y[posIdx];