geojson

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am new to using QGIS so this question might be real easy but I just can't find the answer anywhere online. I need to use the module geojson in QGIS but it is not yet "installed". I've used import geojson and it says No module named geojson So my question is, how do I install geojson in QGIS or specifically PyQGIS? I've already downloaded geojson from a website called geojson-1.0.9. Which folder should I copy geojson into so that PyQGIS can find the geojson python module. Thanks! 回答1: I managed to figure it out myself on how to do

My django web app should do the following: Pass a Geojson object to a view, map the points with leaflet and display some additional information when the user clicks on a point marker. I'm not so familiar with js so I got stuck binding the right kind of data to click event. Here is a sample geojson object. How can I access the 'id' with my click event? var geojsonFeature = {'geometry': {'type': 'MultiPoint', 'coordinates': [[4.939, 52.33], [4.9409, 52.33]] }, 'type': 'Feature', 'properties': {'id': '52','popupContent': 'id=52'} }; Adding the geojson object to the map.. var gj = L.geoJson

I'm trying to plot radar data in folium, and I'm almost there. I followed this example ( Contour plot data (lat,lon,value) within boundaries and export GeoJSON ) to get my data into a GeoJson format. nb_class = 20 collec_poly = plt.contourf(lons,lats,np.array(poshdata), nb_class,alpha=0.5) gdf = collec_to_gdf(collec_poly) # From link above gdf.to_json() colors = [p.get_facecolor().tolist()[0] for p in collec_poly.collections] gdf['RGBA'] = colors gdf This outputs two columns: geometry and RGBA. RGBA geometry 0 [0.0, 0.0, 0.713903743316, 1.0] (POLYGON ((-71.57032079644679 42.2775236331535... 1

I want to draw many geo points with Leaflet. Therefore I want to use HTML5 canvas to improve the performance. My datasoure is geoJSON. As I saw in the documention of Leaflet, it is not possible to draw the geo positions as canvas yet. var anotherGeojsonLayer = new L.GeoJSON(coorsField, { pointToLayer: function (latlng){ return new L.Marker(latlng, { icon: new BaseballIcon() }); } }); I think I should hook up here: pointToLayer: function (latlng) { } Does somebody know how to draw my latlng objects as canvas? I'm Leaflet author. You can do this by using L.CircleMarker instead of regular Marker,

I have the following problem with MongoDB. I got some geo data from my home country and i have to store them into mongodb to set up a simple Web Feature Service. This service will mostly do bounding box queries using the $within operator. The data is in GeoJSON format. Therefore i imported at first the Villages and Cities which are represented as points ( [1,2] ) in this format. No problem. Next step rivers and streets which are LineStrings and according to GeoJSON represented this way [[1,2],[3,4]] . But when importing the districts (which are in fact polygon and according to the GeoJSON

好看的3D地图搭建出来，一定是要能为开发者所用与业务系统开发中才能真正地体现价值。基因于此，CityBuilder建立了与ThingJS的通道——直转ThingJS代码，支持将配置完成的3D地图一键转为代码，不仅减少开发者的工作量，还能作为非GISer开发者的地图教学工具，使一般开发者也能码出专业、炫酷的 3D地图 。 上节说到如何使用GeoJSON、QGIS编辑地图数据，使用CItyBuilder搭建一键城市模型，并且转入到ThingJS开发，以免大家遗忘，我将步骤再次贴出来，然后告诉大家如何使用ThingJS的“ 在线开发 ”完成建筑的自定义顶牌、环绕飞行、沟边效果。 本教程使用GeoJSON绘制并且编写地图数据，使用QGIS微调，以优锘科技所在区域为地图数据，制作一个小范围的智慧城市模型一共分以下五个步骤： 1. 绘制地图资源：进入GeoJSON绘制 优锘科技 所在区域地图数据，根据项目所需为每个建筑添加必要的属性（name、height、type、district）； 2. 编辑地图数据：将GeoJSON数据下载 ，使用QGIS编辑数据（没有数据偏移可以省略这一步，本次省略使用QGIS，感兴趣的人可以网上搜索如何使用QGIS编辑数据，超简单）； 3. 上传地图数据：将处理好的GeoJSON上传至CityBuilder中，在CityBuilder中修改样式； 4.

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've downloaded an .svg map of Finland from http://www.amcharts.com/svg-maps/?map=finland I want to convert it to topojson to use it with d3.js. I first start with svg to geojson conversion, but it fails. I tried: ogr2ogr -f "GeoJSON" finland_kunta.json finlandHigh.svg The error I get: FAILURE: Unable to open datasource `finlandHigh.svg' with the following drivers. -> ESRI Shapefile -> MapInfo File -> UK .NTF -> SDTS -> TIGER -> S57 -> DGN -> VRT -> REC -> Memory -> BNA -> CSV -> GML -> GPX -> KML -> GeoJSON -> GMT -> GPKG -> SQLite -> WAsP

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have also added this vector in my local host code but JSON file is not loaded. geojson_layer = new OpenLayers . Layer . Vector ( "features" , { projection : epsg4326 , strategies : [ new OpenLayers . Strategy . Fixed ()], protocol : new OpenLayers . Protocol . HTTP ({ url : myGeoJSON , format : new OpenLayers . Format . GeoJSON () }) }); I have also added JSON file: { "type" : "FeatureCollection" , "features" : [ { "type" : "Feature" , "properties" : { "GMI_ADMIN" : "GBR-SCT" , "FIPS_CNTRY" : "UK" , "CNTRY_NAME" : "United Kingdom