D3js上的地形圖,帶有完整的makefile工作流程!見http://bl.ocks.org/hugolpz/6279966(< =舊的代碼,比較這裏SO)
0要求:
地理區域:您可以通過編輯內的每一行定義您感興趣的地理區域的2個文件:makefile#boxing和html#用你自己的小數座標fo W,N,E,S邊框,像這樣的地理框架邊界:
var WNES = {「target」:「France」,「W 「:-5.3,」N「:51.6,」E「:10.2,」S「:41.0};
軟件:make
,curl
,unzip
,gdal
(包括ogr
,gdal_calc.py
,gdal_polygonize.py
),nodejs
,topojson
。有用:touch
。然後,makefile管理下載源代碼,處理它們,並輸出D3js代碼提供的單個topojson文件可以使用的文件。
1.保存到文件夾名稱:/topo_map/topo.mk
# topojsoning:
final.json: levels.json
topojson --id-property none --simplify=0.5 -p name=elev -o final.json -- levels.json
# simplification approach to explore further. Feedbacks welcome.
# shp2jsoning:
levels.json: levels.shp
ogr2ogr -f GeoJSON -where "elev < 10000" levels.json levels.shp
# merge
levels.shp: level0001.shp level0050.shp level0100.shp level0200.shp level0500.shp level1000.shp level2000.shp level3000.shp level4000.shp level5000.shp
ogr2ogr levels.shp level0001.shp
ogr2ogr -update -append levels.shp level0050.shp
ogr2ogr -update -append levels.shp level0100.shp
ogr2ogr -update -append levels.shp level0200.shp
ogr2ogr -update -append levels.shp level0500.shp
ogr2ogr -update -append levels.shp level1000.shp
ogr2ogr -update -append levels.shp level2000.shp
ogr2ogr -update -append levels.shp level3000.shp
ogr2ogr -update -append levels.shp level4000.shp
ogr2ogr -update -append levels.shp level5000.shp
# Polygonize slices:
level0001.shp: level0001.tif
gdal_polygonize.py level0001.tif -f "ESRI Shapefile" level0001.shp level_0001 elev
level0050.shp: level0050.tif
gdal_polygonize.py level0050.tif -f "ESRI Shapefile" level0050.shp level_0050 elev
level0100.shp: level0100.tif
gdal_polygonize.py level0100.tif -f "ESRI Shapefile" level0100.shp level_0100 elev
level0200.shp: level0200.tif
gdal_polygonize.py level0200.tif -f "ESRI Shapefile" level0200.shp level_0200 elev
level0500.shp: level0500.tif
gdal_polygonize.py level0500.tif -f "ESRI Shapefile" level0500.shp level_0500 elev
level1000.shp: level1000.tif
gdal_polygonize.py level1000.tif -f "ESRI Shapefile" level1000.shp level_1000 elev
level2000.shp: level2000.tif
gdal_polygonize.py level2000.tif -f "ESRI Shapefile" level2000.shp level_2000 elev
level3000.shp: level3000.tif
gdal_polygonize.py level3000.tif -f "ESRI Shapefile" level3000.shp level_3000 elev
level4000.shp: level4000.tif
gdal_polygonize.py level4000.tif -f "ESRI Shapefile" level4000.shp level_4000 elev
level5000.shp: level5000.tif
gdal_polygonize.py level5000.tif -f "ESRI Shapefile" level5000.shp level_5000 elev
# Raster slicing:
level0001.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level0001.tif --calc="1*(A>0)" --NoDataValue=0
level0050.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level0050.tif --calc="50*(A>50)" --NoDataValue=0
level0100.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level0100.tif --calc="100*(A>100)" --NoDataValue=0
level0200.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level0200.tif --calc="200*(A>200)" --NoDataValue=0
level0500.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level0500.tif --calc="500*(A>500)" --NoDataValue=0
level1000.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level1000.tif --calc="1000*(A>1000)" --NoDataValue=0
level2000.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level2000.tif --calc="2000*(A>2000)" --NoDataValue=0
level3000.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level3000.tif --calc="3000*(A>3000)" --NoDataValue=0
level4000.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level4000.tif --calc="4000*(A>4000)" --NoDataValue=0
level5000.tif: crop.tif
gdal_calc.py -A crop.tif --outfile=level5000.tif --calc="5000*(A>5000)" --NoDataValue=0
# boxing:
crop.tif: ETOPO1_Ice_g_geotiff.tif
gdal_translate -projwin -5.3 41.0 10.2 51.6 ETOPO1_Ice_g_geotiff.tif crop.tif
# ulx uly lrx lry // W S E N
# unzip:
ETOPO1_Ice_g_geotiff.tif: ETOPO1.zip
unzip ETOPO1.zip
touch ETOPO1_Ice_g_geotiff.tif
# download:
ETOPO1.zip:
curl -o ETOPO1.zip 'http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/grid_registered/georeferenced_tiff/ETOPO1_Ice_g_geotiff.zip'
clean:
rm `ls | grep -v 'zip' | grep -v 'Makefile'`
# Makefile v4b (@Lopez_lz)
2.運行makfile創建數據:
cd ./topo_map
make -f ./topo.mk
3。 D3js &帶自動對焦的HTML代碼:
<!-- language: html -->
<style>
svg { border: 5px solid #333; background-color: #C6ECFF;}
/* TOPO */
path.Topo_1 { fill:#ACD0A5; stroke: #0978AB; stroke-width: 1px; }
path.Topo_50 {fill: #94BF8B; }
path.Topo_100 {fill: #BDCC96; }
path.Topo_200 {fill: #E1E4B5; }
path.Topo_500 {fill: #DED6A3; }
path.Topo_1000 {fill:#CAB982 ; }
path.Topo_2000 {fill: #AA8753; }
path.Topo_3000 {fill: #BAAE9A; }
path.Topo_4000 {fill: #E0DED8 ; }
path.Topo_5000 {fill: #FFFFFF ; }
.download {
background: #333;
color: #FFF;
font-weight: 900;
border: 2px solid #B10000;
padding: 4px;
margin:4px;
}
</style>
<body>
<script src="http://code.jquery.com/jquery-2.0.2.min.js"></script>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<script>
// 1. -------------- SETTINGS ------------- //
// Geo-frame_borders in decimal ⁰: France
var WNES = { "W": -5.3, "N":51.6, "E": 10.2, "S": 41.0 };
// Geo values of interest :
var latCenter = (WNES.S + WNES.N)/2,
lonCenter = (WNES.W + WNES.E)/2,
geo_width = (WNES.E - WNES.W),
geo_height= (WNES.N - WNES.S);
// HTML expected frame dimensions
var width = 600,
height = width * (geo_height/geo_width);
// Projection: projection, reset scale and translate
var projection = d3.geo.equirectangular()
.scale(1)
.translate([0, 0]);
// SVG injection:
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
// Path
var path = d3.geo.path()
.projection(projection)
.pointRadius(4);
// Data (getJSON: TopoJSON)
d3.json("final.json", showData);
// 2. ---------- FUNCTION ------------- //
function showData(error, fra) {
var Levels = topojson.feature(fra, fra.objects.levels);
// Focus area box compute for derive scale & translate.
// [[left, bottom], [right, top]] // E W N S
var b = path.bounds(Levels),
s = 1/Math.max((b[1][0] - b[0][0])/width, (b[1][1] - b[0][1])/height),
t = [(width - s * (b[1][0] + b[0][0]))/2, (height - s * (b[1][1] + b[0][1]))/2];
// Projection update
projection
.scale(s)
.translate(t);
//Append Topo polygons
svg.append("path")
.datum(Levels)
.attr("d", path)
svg.selectAll(".levels")
.data(topojson.feature(fra, fra.objects.levels).features)
.enter().append("path")
.attr("class", function(d) { return "Topo_" + d.properties.name; })
.attr("data-elev", function(d) { return d.properties.name; })
.attr("d", path)
}
</script>
<br />
<div>
<a class="download ac-icon-download" href="javascript:javascript: (function() { var e = document.createElement('script'); if (window.location.protocol === 'https:') { e.setAttribute('src', 'https://raw.github.com/NYTimes/svg-crowbar/gh-pages/svg-crowbar.js'); } else { e.setAttribute('src', 'http://nytimes.github.com/svg-crowbar/svg-crowbar.js'); } e.setAttribute('class', 'svg-crowbar'); document.body.appendChild(e); })();"><!--⤋--><big>⇩</big> Download</a> -- Works on Chrome. Feedback me for others web browsers ?
</div>
<br />
</body>
</html>
4。結果將是正是這樣:(適用於您感興趣的區域)
![enter image description here](https://i.stack.imgur.com/DCQmw.png)
如果你出版的地圖(縣)在線請您分享了鏈接:)
注:鼓勵+1歡迎。
要求#軟件:我前一陣子安裝這些軟件,在不同的時間。如果某人得到她/他的手部分或所有'sudo apt-get install'命令來運行,感謝這裏的共享或在線:) – Hugolpz
當我嘗試上面的Makefile時,看到以下錯誤: 'Input文件大小爲21601,10801, 從計算窗口計算的-srcwin 10482 2940 930-635。 錯誤:Computed -srcwin 10482 2940 930 -635具有負寬度和/或高度。 *** [crop.tif]錯誤代碼1' –
'crop.tif:'任務正在失敗。看起來你的寬度和/或高度是負值。此外,請檢查您的'-projwin'值及其在'gdal_translate -projwin -5.3 41.0 10.2 51.6 ETOPO1_Ice_g_geotiff.tif crop.tif'行中的位置。順序是西部,北部,東部,南部邊界,但如果您映射太平洋並穿過[第180子午線](https://en.wikipedia.org/wiki/180th_meridian),則可能需要更改。 – Hugolpz