maps

How would I make a polygon based on the relative positions of markers in google maps?

由 十年热恋 提交于 2019-12-01 11:49:25
I have a list of markers that I want to create a polygon around (showing the area around the markers and not the markers themselves). So instead of having the poly points be the direct lat/long of the markers, I want the poly to "wrap" around the markers to show the relative area around them. Any ideas on how I could accomplish something like this? This is called a convex hull . There's an example at http://www.geocodezip.com/v3_map-markers_ConvexHull.asp which uses the algorithm described at http://softsurfer.com/Archive/algorithm_0203/algorithm_0203.htm 来源： https://stackoverflow.com

Google Maps API - Resizing generates blank white space

由 我只是一个虾纸丫 提交于 2019-12-01 11:39:23
I'm working on what it looked to be like a very simple feature which is causing a little bit of a headache. I work with a GIS and we integrate it with Google Maps. One of the clients requested to be able to open a separate pop up window showing only the map. Opening the window wasn't a problem, but as I try to expand the width of the IFrame which contains the map, in order to fit the window size, the actual map image stays with the same size, and a white space fills the remaining space. I wonder if I have to pass the new width value to some pre-rendering function or something like that... I've

3D Extrusion with mapbox based on local geojson file

由 核能气质少年 提交于 2019-12-01 11:22:28
I have seen this example online which does data-driven building extrusion but doesn't provide the code at all. I would very much like to achieve the same thing. I have a geojson file with some kind of attribute that I would like to map onto the building's height. Would you know how that is possible? I have considered the recommended alternative : doing 3D extrusions on circles that are already generated based on my data. The code on this blog post is not provided and so I sued the code this SO post . The code goes like this: <html> <head> <meta charset='utf-8' /> <title>Display buildings in 3D

Get position of map area(html)?

由 放肆的年华 提交于 2019-12-01 10:26:21
Is this possible? I'm trying to find the x and y coordinates of the element in relation to the browser . var position = $(this).position(); x = position.left; y = position.right; Doesn't work. Is there any way to do this? http://adamsaewitz.com/housing/ highlight the blue room 070 Edit for updated question: Since you're using <area> it's a different story, and fetching from the coords attribute is much easier, like this: var position = $(this).attr('coords').split(','); x = +position[0] - 50; y = +position[1] - 170; The offsets are just to account for the hard-coded width/height of the tooltip

How to display Loading Icon while rendering Markers on the MAP

由 孤街浪徒 提交于 2019-12-01 09:50:38
问题 Rightnow i'm developing an application where i have to display huge number of markers on the map roughly (30K to 50K).right now while rendering the map it is taking time to render whole points so i would like to add an loading gif icon while Navteq Map renders the pointsso that user will be aware of that map is rendering the points. I'm using latest Nokia(Here)- Maps API version 2.5.3 . i have tried with transitionstart and transistionend events but it is not showing my GIF icon but if i only

How would I make a polygon based on the relative positions of markers in google maps?

由 谁说胖子不能爱 提交于 2019-12-01 09:49:16
问题 I have a list of markers that I want to create a polygon around (showing the area around the markers and not the markers themselves). So instead of having the poly points be the direct lat/long of the markers, I want the poly to "wrap" around the markers to show the relative area around them. Any ideas on how I could accomplish something like this? 回答1: This is called a convex hull . There's an example at http://www.geocodezip.com/v3_map-markers_ConvexHull.asp which uses the algorithm

Google Maps: Given the Lat Long coordinates

由 喜你入骨 提交于 2019-12-01 09:47:13
问题 I have the the following Lat Long coordinates (in a JS array), how can we draw the Google Map with markers on these coordinates. Please give a simple example, as the examples in the API documentation do not really give a conclusive answer or are too complex for me. 43.82846160000000000000, -79.53560419999997000000 43.65162010000000000000, -79.73558579999997000000 43.75846240000000000000, -79.22252100000003000000 43.71773540000000000000, -79.74897190000002000000 Thanks in advance. 回答1: You may

Java笔记——Map集合

由 ∥☆過路亽．° 提交于 2019-12-01 09:40:20
<!doctype html>Java集合 /*--> */ /*--> */ 对象的比较 重写hashCode()和equals() 若hashcode相同，则会执行equals() 若hashcode不相同，则不会执行equals() hashSet 根据重写hashCode()和equals()进行比较 treeSet 线程不安全 根据重写equals()进行比较 进行比较——需要自定义比较器 comprable接口：对象之间比较 Comparator实现类 Collection集合接口 Map集合接口 Map集合与Collection不是从属关系，是平级的 Map集合的映射特点 一个映射不能包含重复的键，由此键只能允许有一个空null 每个键最多只能和一个值对应 值可以重复，由此值允许多个是空null Map集合与Collection的子接口Set一样是无序的 Map<KEY,VALUE>：KEY和VALUE表示泛型，KEY和VALUE可以是任何数据类型【除基本数据类型之外】，实际项目中KEY一般是String类型 实现类 HashMap 特点 一个映射不能包含重复的键： 如果存在重复的KEY，则后面添加的会把前面的覆盖 其实键就是Set，元素唯一，只能有一个null， 元素是 无序 的（与添加顺序无关） HashMap不是同步的， 即线程不安全

Pinch to Zoom Google Maps API v3 Android Webkit

由 断了今生、忘了曾经 提交于 2019-12-01 09:09:32
问题 I am writing a webkit app, and i'm using google maps api v3. I tried it on a android phone (HTC Desire) but it dosen't pinch to zoom. Note, i don't want to pinch and zoom a web page I want to pinch to zoom a google map v3 map in a web view. Has anyone got this working on android? 回答1: It would appear that, currently, you cannot rely on being able to receive pinch-to-zoom events on Android browsers. Here it is in the Android issue tracker: http://code.google.com/p/android/issues/detail?id

Get type of terrain by coordinate

由 陌路散爱 提交于 2019-12-01 08:32:24
I'm looking for a solution to be able determine landscape type by a given coordinate, for example check if current position is water/forest/town/road and so on. I found google.maps.MapTypeStyleElementType object specification in the Google Maps specification, but not sure if it could help me or not. Probably, there are some another Maps API with such functioality? Or maybe I should refer to the different types of offline maps? Nope, the link you send is just for styling the proper features, not to tell which feature is at a given coordinate. If you are interested in landscape, then Corine Land
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