maps

How to display markers (huge numbers) on a map which has been logically divided into segments?

由 前提是你 提交于 2020-01-13 07:05:12
问题 What i have done so far: i'm developing an application where i have to display more than(50K) points/Markers on the Navteq map divided into different segments. for example: if i have 50K points i will divide all points into different segments. if i divide 50K points into 50 segments each segment would have 1000 points (may not be 50 segments , it may depend). right now it is working but it takes long time and hangs to render all the points on the MAP.so that i would like to perform

Google maps satellite view

由 跟風遠走 提交于 2020-01-13 06:44:07
问题 I'm using the google maps API with openstreetmap (see the following example code), I'd like to add the google satellite view too. How can this be accomplished? var tilesMapnik = new GTileLayer(copyOSM, 1, 17, {tileUrlTemplate: 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png'}); var mapMapnik = new GMapType([tilesMapnik],G_NORMAL_MAP.getProjection(), "îôä"); map = new GMap2(document.getElementById("map_canvas"), { mapTypes: [mapMapnik] }); map.setCenter(new GLatLng(32.08, 34.82), 12); map

SpringBoot的配置文件

由 微笑、不失礼 提交于 2020-01-12 22:35:48
1、使用Spring Initializer快速创建Spring Boot项目 IDE都支持使用Spring的项目创建向导快速创建一个Spring Boot项目； 选择我们需要的模块；向导会联网创建Spring Boot项目； 默认生成的Spring Boot项目； 在生成的目录中:主程序已经生成好了，我们只需要关注我们自己的逻辑 resources文件夹中目录结构 static：保存所有的静态资源； js css images； templates：保存所有的模板页面；（Spring Boot默认jar包使用嵌入式的Tomcat，默认不支持JSP页 面）；可以使用模板引擎（freemarker、thymeleaf）； application.properties：Spring Boot应用的配置文件，可以修改一些默认设置； 2.springboot的配置文件 SpringBoot使用一个全局的配置文件，配置文件名是固定的； •application.properties •application.yml 配置文件的作用：修改SpringBoot自动配置的默认值；SpringBoot在底层都给我们自动配置好；如果我们对默认配置文件不满意，就需要通过配置文件进行修改 2.1认识yaml语言 YAML（YAML Ain't Markup Language） YAML A Markup

Override MapView Tile Source?

由 ￡可爱￡侵袭症＋ 提交于 2020-01-12 13:49:12
问题 Is it possible to override the source of the tiles that the Android MapView displays? I have some map imagery tiles in a database, and would like to use the Google maps MapView to look at them. Also, if this is not possible... does anyone know of a MapView that does allow this? (OpenStreetMap API... MapQuest API... etc) I am looking for a solution that does not rely on the GPL/LGPL. 回答1: You can use some of these libraries: osmdroid, mapsforge. Both of them provides interface to some internet

Python: Finding Longest/Shortest Words In a List and Calling Them in a Function

由 南笙酒味 提交于 2020-01-12 08:39:19
问题 I have a list of words: words=["alpha","omega","up","down","over","under","purple","red","blue","green"] I have two functions that are supposed to find the shortest and longest words in this list: def bigWords(list=[], *args): largestWord="" largestLen=0 for word in list: if largestWord<len(word): largestWord=len(word) largestWord=word print "The longest word(s) in the list is %s." % largestWord def smallWords(list=[], *args): smallestWord="" smallestLen=0 for word in list: if smallestLen>len

Python: Finding Longest/Shortest Words In a List and Calling Them in a Function

由 末鹿安然 提交于 2020-01-12 08:39:01
问题 I have a list of words: words=["alpha","omega","up","down","over","under","purple","red","blue","green"] I have two functions that are supposed to find the shortest and longest words in this list: def bigWords(list=[], *args): largestWord="" largestLen=0 for word in list: if largestWord<len(word): largestWord=len(word) largestWord=word print "The longest word(s) in the list is %s." % largestWord def smallWords(list=[], *args): smallestWord="" smallestLen=0 for word in list: if smallestLen>len

Google maps API. Get continent where the country is located

由 隐身守侯 提交于 2020-01-12 06:17:29
问题 There is a simple query to google API https://maps.googleapis.com/maps/api/geocode/json?address=&components=country:Russia&language=ru&key=MY_API_KEY Response contain the bounds, location and full address (for example - Russia) But i need to now that - Russia -> Europe, USA -> north America, Egypt -> Africa. How to do it?! 回答1: Geocode with Google API. One of entries in "address_components" should look like that [ "country", "political" ] , e.g.: { "long_name" : "United States", "short_name"

Google maps API. Get continent where the country is located

由 こ雲淡風輕ζ 提交于 2020-01-12 06:16:13
问题 There is a simple query to google API https://maps.googleapis.com/maps/api/geocode/json?address=&components=country:Russia&language=ru&key=MY_API_KEY Response contain the bounds, location and full address (for example - Russia) But i need to now that - Russia -> Europe, USA -> north America, Egypt -> Africa. How to do it?! 回答1: Geocode with Google API. One of entries in "address_components" should look like that [ "country", "political" ] , e.g.: { "long_name" : "United States", "short_name"

Object detection部分源码解析

由 随声附和 提交于 2020-01-11 19:07:32
主要参考 基于VGG的ssd 基于mobilenet的ssd 预训练模型基于slim 1 构建自己的模型 第一步，了解slim建立新模型的框架。定义一个Model类，主要有五部分组成： preprocess：在输入图像上运行检测器之前，对输入值进行任何预处理（例如缩放/移位/重新整形）。 predict：产生可以传递给损失或后面处理函数的“原始”预测张量。这里会涉及到模型结构。 postprocess：将预测输出张量转换为最终检测结果。 loss：针对提供的groundtruth实体计算损失张量。 restore：将检查点加载到Tensorflow图中。 2 了解源代码 2.1 训练逻辑 在/home/users/py3_project/models/research/object_detection目录下讲解配置文件dataset/ssd_mobilenet_v1_pascal.config：设置调用的模型名称及模型框架中的超参数、训练超参数、数据来源文件等 代码一train.py：模型训练开始部分 首先，主要讲解train.py的训练过程的逻辑。 该步是训练模型train.py调用的模块。train.py调用了多个模块，如下： 该步是train.py的主要功能之一–读取配置文件。其中train.py用到的部分主要有三块，model（模型特征）和train_config（优化器

Clojure: summing values in a collection of maps

由 大兔子大兔子 提交于 2020-01-11 09:18:12
问题 I am trying to sum up values of a collection of maps by their common keys. I have this snippet: (def data [{:a 1 :b 2 :c 3} {:a 1 :b 2 :c 3}] (for [xs data] (map xs [:a :b])) ((1 2) (1 2)) Final result should be ==> (2 4) Basically, I have a list of maps. Then I perform a list of comprehension to take only the keys I need. My question now is how can I now sum up those values? I tried to use "reduce" but it works only over sequences, not over collections. Thanks. ===EDIT==== Using the
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