kopia lustrzana https://github.com/rastapasta/mapscii
🎨 MVP version of mapbox style parser
Michael Straßburger
rodzic
87340c1d3c
commit
1afd8ec9c2
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@ -28,6 +28,7 @@ No web browser around? No worries - discover the planet in your console!
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### Libraries
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#### Mastering the console
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* [`drawille-canvas-blessed-contrib`](https://github.com/yaronn/drawille-canvas-blessed-contrib/) for [braille](http://www.fileformat.info/info/unicode/block/braille_patterns/utf8test.htm) rendering
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* [`x256`](https://github.com/substack/node-x256) for finding nearest xterm-256 [color codes](https://en.wikipedia.org/wiki/File:Xterm_256color_chart.svg)
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* [`term-mouse`](https://github.com/CoderPuppy/term-mouse) for mouse handling
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* [`keypress`](https://github.com/TooTallNate/keypress) for input handling
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@ -41,7 +42,6 @@ No web browser around? No worries - discover the planet in your console!
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* [`rbush`](https://github.com/mourner/rbush) for 2D spatial indexing based label and mouse collision detection
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* [`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
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## Wishlist
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* node port of [libdrawille](https://github.com/Huulivoide/libdrawille) - well optimized library, supporting filled polygons
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@ -71,6 +71,8 @@ No web browser around? No worries - discover the planet in your console!
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* [x] start with zoom level which shows full vector tile
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* [x] accurate mouse drag&drop
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* [x] handle console resize
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* [ ] styling
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* [ ] abstracted MapBox style JSON support
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* [ ] turn this into a [`blessed-contrib`](https://github.com/yaronn/blessed-contrib) widget
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## License
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@ -28,6 +28,7 @@
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"rbush": "^2.0.1",
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"sphericalmercator": "^1.0.5",
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"term-mouse": "^0.1.1",
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"vector-tile": "^1.3.0"
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"vector-tile": "^1.3.0",
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"x256": "0.0.2"
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}
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}
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@ -2,7 +2,7 @@ rbush = require 'rbush'
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module.exports = class LabelBuffer
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tree: null
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margin: 1
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margin: 5
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constructor: (@width, @height) ->
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@tree = rbush()
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@ -0,0 +1,92 @@
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fs = require 'fs'
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# 'text-field'
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# Verrrrry MVP implementation
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# TODO: should be optimized by compiling the json to method&cb based filters
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module.exports = class Styler
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styleById: {}
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styleByLayer: {}
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constructor: (file) ->
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json = JSON.parse fs.readFileSync(file).toString()
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@styleName = json.name
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for layer in json.layers
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continue if layer.ref
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style = layer
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@styleByLayer[layer['source-layer']] ?= []
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@styleByLayer[layer['source-layer']].push style
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@styleById[layer.id] = style
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getStyleFor: (layer, feature, zoom) ->
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return false unless @styleByLayer[layer]
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for style in @styleByLayer[layer]
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return style unless style.filter
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if @_passesFilter feature, style.filter
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return style
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false
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_passesFilter: (feature, filter) ->
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switch filter.shift()
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when "all"
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for subFilter in filter
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return false unless @_passesFilter feature, subFilter
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true
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when "=="
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feature.properties[filter[0]] is filter[1]
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when "!="
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feature.properties[filter[0]] isnt filter[1]
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when "in"
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field = filter.shift()
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for value in filter
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return true if feature.properties[field] is value
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false
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when "!in"
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field = filter.shift()
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for value in filter
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return false if feature.properties[field] is value
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true
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###
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cleanStyle: (file) ->
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json = JSON.parse fs.readFileSync(file).toString()
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cleanedStyle =
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name: json.name
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layers: []
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for layer in json.layers
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continue if layer.ref
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cleanLayer =
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type: layer.type
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id: layer.id
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paint: {}
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'source-layer': layer['source-layer']
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for key in ['filter', 'minzoom']
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cleanLayer[key] = layer[key] if layer[key]
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if layer.layout?['text-size']
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cleanLayer.layout = 'text-size': layer.layout?['text-size']
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# TODO: opacity
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for key in ['fill-color', 'line-color', 'text-color', 'background-color']
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cleanLayer.paint[key] = layer.paint[key] if layer.paint?[key]
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if Object.keys(cleanLayer.paint).length
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cleanedStyle.layers.push cleanLayer
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console.log JSON.stringify cleanedStyle, null, ' '
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###
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Plik diff jest za duży
Load Diff
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@ -1,14 +1,18 @@
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Canvas = require '../drawille-canvas-blessed-contrib'
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VectorTile = require('vector-tile').VectorTile
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Protobuf = require 'pbf'
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keypress = require 'keypress'
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TermMouse = require 'term-mouse'
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x256 = require 'x256'
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Protobuf = require 'pbf'
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VectorTile = require('vector-tile').VectorTile
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fs = require 'fs'
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zlib = require 'zlib'
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TermMouse = require 'term-mouse'
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mercator = new (require('sphericalmercator'))()
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LabelBuffer = require __dirname+'/src/LabelBuffer'
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triangulator = new (require('pnltri')).Triangulator()
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LabelBuffer = require __dirname+'/src/LabelBuffer'
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Styler = require __dirname+'/src/Styler'
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utils =
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deg2rad: (angle) ->
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# (angle / 180) * Math.PI
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@ -16,6 +20,21 @@ utils =
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rad2deg: (angle) ->
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angle / Math.PI * 180
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hex2rgb: (color) ->
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return [255, 0, 0] unless color?.match
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unless color.match /^#[a-fA-F0-9]{3,6}$/
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throw new Error "#{color} isn\'t a supported hex color"
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color = color.substr 1
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decimal = parseInt color, 16
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if color.length is 3
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rgb = [decimal>>8, (decimal>>4)&15, decimal&15]
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rgb.map (c) => c + (c<<4)
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else
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[(decimal>>16)&255, (decimal>>8)&255, decimal&255]
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digits: (number, digits) ->
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Math.floor(number*Math.pow(10, digits))/Math.pow(10, digits)
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@ -25,10 +44,13 @@ utils =
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class Termap
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config:
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styleFile: __dirname+"/styles/bright.json"
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fillPolygons: true
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zoomStep: 0.5
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# landuse
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drawOrder: ["admin", "water", "building", "road", "poi_label", "housenum_label"]
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# landuse "poi_label"
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drawOrder: ["admin", "water", "building", "road", "housenum_label"]
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icons:
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car: "🚗"
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@ -54,7 +76,7 @@ class Termap
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minZoom: 2
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color: 8
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building:
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minZoom: 3.5
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minZoom: 2.5
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color: 8
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poi_label:
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@ -76,6 +98,7 @@ class Termap
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height: null
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canvas: null
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styler: null
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isDrawing: false
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lastDrawAt: 0
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@ -122,6 +145,7 @@ class Termap
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@zoom = Math.log(4096/@width)/Math.LN2
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@labelBuffer = new LabelBuffer()
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@styler = new Styler @config.styleFile
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_onResize: (cb) ->
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process.stdout.on 'resize', cb
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@ -184,7 +208,7 @@ class Termap
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features[name] = for i in [0...layer.length]
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feature = layer.feature i
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type: [undefined, "point", "line", "polygon"][feature.type]
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type: [undefined, "Point", "LineString", "Polygon"][feature.type]
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id: feature.id
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properties: feature.properties
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points: feature.loadGeometry()
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@ -194,9 +218,12 @@ class Termap
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_draw: ->
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return if @isDrawing
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@isDrawing = true
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@lastDrawAt = Date.now()
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# if color = @styler.styleById['background']?.paint['background-color']
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# @canvas.strokeStyle = x256 utils.hex2rgb(color)...
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# @canvas.fillRect 0, 0, @width, @height
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# else
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@canvas.clearRect 0, 0, @width, @height
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@canvas.save()
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@ -225,12 +252,12 @@ class Termap
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@canvas.strokeStyle = @canvas.fillStyle = @config.layers[layer].color
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for feature in @features[layer]
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if @_drawFeature feature, scale
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if @_drawFeature layer, feature, scale
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drawn.push feature
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drawn
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_drawFeature: (feature, scale) ->
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_drawFeature: (layer, feature, scale) ->
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toDraw = []
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for idx, points of feature.points
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visible = false
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@ -249,17 +276,28 @@ class Termap
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continue unless visible
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toDraw.push projectedPoints
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if style = @styler.getStyleFor layer, feature, 8
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color = style.paint['line-color'] or style.paint['fill-color']
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# TODO: zoom calculation todo for perfect styling
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if color instanceof Object
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color = color.stops[0][1]
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@canvas.fillStyle = @canvas.strokeStyle = x256 utils.hex2rgb color
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else
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@canvas.strokeStyle = @canvas.fillStyle = @config.layers[layer].color
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switch feature.type
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when "line"
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when "LineString"
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@_drawWithLines points for points in toDraw
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true
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when "polygon"
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unless @_drawWithTriangles toDraw
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when "Polygon"
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unless @config.fillPolygons and @_drawWithTriangles toDraw
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@_drawWithLines points for points in toDraw
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true
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when "point"
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when "Point"
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text = feature.properties.house_num or @config.icons[feature.properties.maki] or "◉"
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wasDrawn = false
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