🐁 adding Renderer.featuresAt to return features for mouse positions

README.md

@@ -48,6 +48,8 @@ No web browser around? No worries - discover the planet in your console!
 * [`sphericalmercator`](https://github.com/mapbox/node-sphericalmercator) for [EPSG:3857](http://spatialreference.org/ref/sr-org/6864/) <> [WGS84](http://spatialreference.org/ref/epsg/wgs-84/) conversions
 
 ### TODOs
+* [ ] mouse hover of POIs (maybe even polygons?)
+* [ ] termap-server - telnet and ssh access
 * [ ] cli linking
 * [ ] mapping of view to tiles to show
 * [x] abstracted MapBox style JSON support

src/LabelBuffer.coffee

@@ -9,7 +9,9 @@
 rbush = require 'rbush'
 
 module.exports = class LabelBuffer
+  treeWithMargin: null
   tree: null
+
   margin: 5
 
   constructor: (@width, @height) ->
@@ -18,22 +20,28 @@ module.exports = class LabelBuffer
   clear: ->
     @tree.clear()
 
+
   project: (x, y) ->
     [Math.floor(x/2), Math.floor(y/4)]
 
-  writeIfPossible: (text, x, y, margin = @margin) ->
+  writeIfPossible: (text, x, y, feature, margin = @margin) ->
     point = @project x, y
 
     if @_hasSpace text, point[0], point[1]
-      @tree.insert @_calculateArea text, point[0], point[1], margin
+      data = @_calculateArea text, point[0], point[1], margin
+      data.feature = feature
+      @tree.insert data
     else
       false
 
-  _hasSpace: (text, x, y) ->
-    not @tree.collides @_calculateArea text, x, y, 0
+  featuresAt: (x, y) ->
+    @tree.search minX: x, maxX: x, minY: y, maxY: y
 
-  _calculateArea: (text, x, y, margin) ->
+  _hasSpace: (text, x, y) ->
+    not @tree.collides @_calculateArea text, x, y
+
+  _calculateArea: (text, x, y, margin = 0) ->
     minX: x-margin
-    minY: y-margin
+    minY: y-margin/4
     maxX: x+margin+text.length
-    maxY: y+margin
+    maxY: y+margin/4

src/Renderer.coffee

@@ -100,6 +100,10 @@ module.exports = class Renderer
 
     @isDrawing = false
 
+  featuresAt: (x, y) ->
+    @labelBuffer.featuresAt x, y
+
+
   _write: (output) ->
     process.stdout.write output
 
@@ -165,9 +169,9 @@ module.exports = class Renderer
             x = point[0] - text.length
             margin = @config.layers[layer]?.margin or @config.labelMargin
 
-            if @labelBuffer.writeIfPossible text, x, point[1], margin
+            if @labelBuffer.writeIfPossible text, x, point[1], feature, margin
               @canvas.text text, x, point[1], colorCode
-            else if @config.layers[layer]?.cluster and @labelBuffer.writeIfPossible "X", point[0], point[1], 3
+            else if @config.layers[layer]?.cluster and @labelBuffer.writeIfPossible "X", point[0], point[1], feature, 3
               @canvas.text "◉", point[0], point[1], colorCode
 
   _scaleAndReduce: (points, scale) ->

src/Termap.coffee

@@ -97,8 +97,10 @@ module.exports = class Termap
       else
         @mouseDragging = x: event.x, y: event.y
 
-      # update internal mouse tracker
-      @mousePosition = x: event.x, y: event.y
+    # update internal mouse tracker
+    @mousePosition = x: event.x, y: event.y
+    @renderer.notify @_getFooter()
+
 
   _onKey: (key) ->
     # check if the pressed key is configured
@@ -138,9 +140,13 @@ module.exports = class Termap
     #mercator.inverse([x - width/2, y + width/2]).concat mercator.inverse([x + width/2, y - width/2])
 
   _getFooter: ->
-    #{}"center: [#{utils.digits @center.lat, 2}, #{utils.digits @center.lng, 2}] zoom: #{utils.digits @zoom, 2}"
-    "bbox: [#{@_getBBox().map((z) -> utils.digits(z, 2)).join(', ')}]"
-    #{}"#{@mouseDragging.x} #{@mouseDragging.y}   #{@mousePosition.x} #{@mousePosition.y}"
+    features = @renderer.featuresAt @mousePosition.x-1-(@view[0]>>1), @mousePosition.y-1-(@view[1]>>2)
+    "features: ["+features.map((f) -> f.feature.id).join(", ")+"] "+
+    "#{@mousePosition.x} #{@mousePosition.y}"
+    #"center: [#{utils.digits @center.lat, 2}, #{utils.digits @center.lng, 2}] zoom: #{utils.digits @zoom, 2}"
+    #"bbox: [#{@_getBBox().map((z) -> utils.digits(z, 2)).join(', ')}]"
+
+    #features.map((f) -> JSON.stringify f.feature.properties).join(" - ")
 
   zoomBy: (step) ->
     return @zoom = 0 if @zoom+step < 0