maps

Draw maps

由 ￣綄美尐妖づ 提交于 2020-02-13 03:09:22
See this article on my own blog https://dyingdown.github.io/2020/02/06/Draw-map/ Preparation Before you start to draw maps with python, you first need to install basemap and pyshp . Click here to see how to install basemap . And the following command to install pyshp pip install pyshp --user Draw maps Since basemap is a plug-in in Python, so we first new a py file. World map with coastlines import matplotlib . pyplot as plot from mpl_toolkits . basemap import Basemap plot . figure ( figsize = ( 16 , 8 ) ) m = Basemap ( ) m . drawcoastlines ( ) plot . show ( ) World map with countries import

Android maps - Markers Bounds at the center of top half of map area

由 三世轮回 提交于 2020-02-12 04:55:40
问题 I have Android Map Extension attached under actionBar. I have couple of markers, lets say 2000. Than I have ArrayList of selected 3 markers upon some constant condition, nevermind. I want to zoom and move map to include this selected 3 markers at max possible zoom. It's an easy task, from this forum I found an easy way to do it : LatLngBounds bounds = new LatLngBounds.Builder().include(new LatLng(maxLat, maxLon)).include(new LatLng(minLat, minLon)).build(); mMap.moveCamera(CameraUpdateFactory

玛雅人的密码（BFS）

由 雨燕双飞 提交于 2020-02-09 15:13:52
题目链接： https://www.nowcoder.com/practice/761fc1e2f03742c2aa929c19ba96dbb0?tpId=40&tqId=21343&tPage=1&rp=1&ru=/ta/kaoyan&qru=/ta/kaoyan/question-ranking 代码如下： #include <bits/stdc++.h> using namespace std; map<string,int> maps; //存储对应字符串需要的移位次数 bool Satisfy(string str){ //判断是否满足解密条件 if(str.find("2012")!=string::npos){ //判断str中是否有“2012”这个串 return true; }else{ return false; } } string exchange(string str,int i,int j){ //交换字符串str两个位置的元素 string strTmp=str; char c=strTmp[i]; strTmp[i]=strTmp[j]; strTmp[j]=c; return strTmp; } int BFS(string str){ queue<string> myQueue; myQueue.push(str); maps.clear();/

Backend Calculated Route,Here-API to just show Guidance and route on Map

由 烈酒焚心 提交于 2020-02-06 09:58:09
问题 I have a back-end service where the route calculation is done and I will be using here-api to display the calculated route on map and start guidance, Can I know the API which can be used for this purpose ? I have gone through, Here-API where I see We can create an Route from RouteResult on Overridden onCalculateRouteFinished() function. From the list we can get Route data and create a MapObject . Using this MapObject add this to the Map. But this is not my intention as I will not be having

Android polylines maps api

由 自古美人都是妖i 提交于 2020-02-06 05:36:18
问题 well, im a begginer in android and i need to use maps on the device more specifically (polylines) i need to do something like this. this is a web app i did to track down bus routes and bus-stops on my city , and i've been asked to do the same thing in android! ive been checking the maps api for android and did not found anything similar to polyline in JS api , is there a way to achieve this? i have no problem adding simple overlays i've been checking the basic tutorials in android developer

SpringBoot通过配置文件值获取

由 大兔子大兔子 提交于 2020-02-04 07:17:25
IDEA中创建SpringBoot项目 选择Spring Web模块 整体构架 pom.xml < ? xml version = "1.0" encoding = "UTF-8" ? > < project xmlns = "http://maven.apache.org/POM/4.0.0" xmlns : xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi : schemaLocation = "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" > < modelVersion > 4.0 .0 < / modelVersion > < parent > < groupId > org . springframework . boot < / groupId > < artifactId > spring - boot - starter - parent < / artifactId > < version > 2.2 .4 . RELEASE < / version > < relativePath / > < ! -- lookup parent from repository -- > < /

Scale a circle's radius (given in meters) to D3.js d3.geo.mercator map

由 拥有回忆 提交于 2020-02-02 11:50:56
问题 I am using D3.js and TopoJSON libraries to render a flat SVG map of the world in a small div on a web page. I'm also taking some geographic objects (polygons and circles), and plotting them on this map via lat/long coordinates. This all seems to be working pretty well, however, the circle objects that I am plotting on the map contain a radius element which is given in meters. I cannot find or figure out how to convert/scale this measurement appropriately onto the SVG map. Any help would be

A Tour of Go : Exercise: Maps

由 断了今生、忘了曾经 提交于 2020-02-01 02:58:13
A Tour of Go系列。如有问题欢迎指出~ Tour第二篇，直接贴代码吧，同样很简单。 1 package main 2 3 import ( 4 "code.google.com/p/go-tour/wc" 5 "strings" 6 ) 7 8 func WordCount(s string) map[string]int { 9 cntWord:=make(map[string]int) 10 for _,v:=range strings.Fields(s){ 11 cntWord[v]+=1 12 } 13 return cntWord 14 } 15 16 func main() { 17 wc.Test(WordCount) 18 } Run一下将输出： PASS f("I am learning Go!") = map[string]int{"I":1, "learning":1, "Go!":1, "am":1} PASS f("The quick brown fox jumped over the lazy dog.") = map[string]int{"over":1, "lazy":1, "quick":1, "brown":1, "the":1, "dog.":1, "fox":1, "jumped":1, "The":1} PASS f("I

Merge two maps, summing values for same keys in C++

由 荒凉一梦 提交于 2020-01-31 04:45:17
问题 I have two std::map<int,int> maps and wish to merge them into a third map like this: if the same key is found in both maps, create a pair in the third map with the same key and a value which a sum of values from the first and second map, otherwise just copy a pair to the third map. I suspect it can be done with std::accumulate , but I don't understand it well enough. 回答1: An overly generic solution inspired by std::set_union . Unlike the first suggested answer, this should run in O(n) instead

CSV-03- csv 读写框架支持数组、Map、Collection 等常见集合

由 北城余情 提交于 2020-01-28 20:11:23
集合类 有时候对象中会包含数组、Map、Collection 等常见集合。 为了存储的便利性，默认提供集合的相关支持。 特性和普通字段保持一致，如果指定注解转换，则以注解为准。 使用示例 UserCollection.java 用于演示集合的对象 public class UserCollection { private String[] arrays; private LinkedList<String> lists; private Map<String, String> maps; private Set<String> sets; //Getter/Setter/toString() } 存储 待存储对象的构建 /** * 构建基于集合的测试列表 * @return 列表 * @since 0.0.3 */ private List<UserCollection> buildCollectionList() { UserCollection user = new UserCollection(); String[] arrays = new String[]{"a", "b", "c"}; LinkedList<String> lists = new LinkedList<>(Arrays.asList(arrays)); Map<String, String> maps
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