maps

Mind map 在 Wikipedia 的定义

由 …衆ロ難τιáo~ 提交于 2019-12-07 17:55:55
好不容易找到了 Mind map 在 Wikipedia 的定义，现在看来 Mind map 会成为我工作中的一个重要助手，从上周针对 PDF Form and Pattern Render 的 Mind 就可以看出一点端倪。 Mind map From Wikipedia, the free encyclopedia (Redirected from Mind mapping ) Jump to: navigation , search A mind map (or mind-map ) is a diagram used for linking words and ideas to a central key word or idea. It is used to visualize , classify , structure , and generate ideas, as well as an aid in study , problem solving , and decision making . It is similar to a semantic network or cognitive map but there are no formal restrictions on the kinds of links used. Most often the map

Fast and Frequent location Update in android..?

由 拈花ヽ惹草 提交于 2019-12-07 17:24:55
问题 public void getUserLocation() { Location location; TextView lon = (TextView) findViewById(R.id.textView2); TextView lat = (TextView) findViewById(R.id.textView3); boolean GpsEnable = false, NetworkEnabled = false; locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); // String locationProvider = LocationManager.GPS_PROVIDER; GpsEnable = locationManager .isProviderEnabled(LocationManager.GPS_PROVIDER); NetworkEnabled = locationManager .isProviderEnabled

How to create an event when pressing on a leaflet popup in R?

由 别等时光非礼了梦想. 提交于 2019-12-07 14:51:41
问题 I would like to make the tabPanel change in Shiny when I click on a Leaflet polygon. I have a couple of ideas on how to do this, but I can't find the information I need to implement them. I have the leaflet in a tabPanel, but I would like to switch to another tab when a polygon is clicked on. leaflet(llmap) %>% addTiles() %>% addPolygons(stroke = F, fillOpacity = .8, smoothFactor = .5, color=~pal(x), popup = pop) I thought of making popup=updateTabsetPanel(session="New Tab") , but that doesn

How can I automatically plot markers for addresses on a Google or OpenStreetMap?

由 こ雲淡風輕ζ 提交于 2019-12-07 13:48:32
问题 I have a list of UK addresses and would like to plot them on a google or openstreetmap (I dont mind which). Is there a way to render a batch of addresses on a map with dots to represent the location (rather then the standard marker). To make things slightly more complex, I would like to change the colour and size of some markers. The data source is a street address including postcode and a marker type (size, color). Does anyone know of a site, script, process to achieve this? The geographic

Plotting a map with matplotlib basemap - horribly slow

由 筅森魡賤 提交于 2019-12-07 13:30:29
问题 Plotting a very, very simple map of only europe in matplotlib / basemap takes so much time ( around 10 seconds! ). This is just unreal!? Setting of resolution is only "l" (low). Here is the very simple code: import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as plt from mpl_toolkits.basemap import Basemap m = Basemap(projection='stere',lon_0=5,lat_0=90.0,rsphere=6371200.,\ llcrnrlon=-25.0,urcrnrlon=72.0,llcrnrlat=26.0,urcrnrlat=65.0,resolution='l') m.drawcoastlines(linewidth=0.2

Creating a Leaflet map with custom labels in R

由 走远了吗. 提交于 2019-12-07 13:27:08
问题 I would like to visualize my data using a world map in R, where labels are to be added at certain points (given coordinates). The labels should be some 3D-rectangles with heights proportional to the value from data table. I would use the R package "leaflet" (or any alternative, if better). There are about 10-15 points around the world, and there are two values for each location (specifically, points are locations of major oil fields, and values are, for example, size and reserves). I want to

Names of the countries on the plot with rworldmap

由 回眸只為那壹抹淺笑 提交于 2019-12-07 11:55:42
问题 Good morning, I have spent a lot of time to figure out how can I add a country names directly on plot not like a part of legend, but like part of map. Im using package rworldmap, tried to use identifyCountries () - but it something for interaction (when a user clicks on the map), than I have found a such solution Administrative regions map of a country with ggmap and ggplot2 but it's for ggplot2, and too complicated. Im trying to do it with mapCountryData() . Hope for your help, thanks. data

HTML5 Geolocation 定位服务 实例

由 烈酒焚心 提交于 2019-12-07 09:11:05
本例采用html5 Geolocation 定位服务 和 google maps api 3 完成，运行时请确保你的浏览器支持 html5. <!DOCTYPE html> <html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <style type="text/css"> html { height: 100% } body { height: 100%; margin: 0px; padding: 0px } #map_canvas { height: 100% } </style> <script type="text/javascript" src="http://maps.google.com/maps/api/js?v=3.7&sensor=false"> </script> <script type="text/javascript"> function initialize(position) { var latlng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude); // position.coords.latitude 经度 //

Maps, test if current location is on or near polyline

由 [亡魂溺海] 提交于 2019-12-07 07:58:34
问题 I'm using google directions api to draw a polyline for a route. Does anyone have any examples of checking if current location is on/near a polyline? Trying to determine if users current location is within x meters of that line and if not i'll make a new request and redraw a new route. Cheers! 回答1: Here is my solution: just add the bdccGeoDistanceAlgorithm class I have created to your project and use bdccGeoDistanceCheckWithRadius method to check if your current location is on or near polyline

Maps for China - which is correct, Satellite or default street map ? does that mean geocoding results are wrong?

由 我只是一个虾纸丫 提交于 2019-12-07 07:05:30
问题 So it is known that the maps, either the regular street map or the satellite map, does not line up correctly in specific parts of China. So which map lines up correctly, the satellite map or the default street map? Some sites suggest that the satellite map is correct. But the Google Geocoder is placing locations correctly on the google street map and not on the satellite map. So if the satellite map is considered to be correctly aligned with China, does that mean that the Google Geocoder is
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