maps

Getting pixel coordinates of an image overlay using leaflet map library on click (right click)

由 可紊 提交于 2019-12-30 06:10:08
问题 I'm trying to get the pixel coordinates of an image overlay on click (right click/contextmenu) using the leaflet map library. Essentially when a user clicks on the image, I need to find the x,y or width,height of where the user clicked on the image. Currently this is what I have. // Using leaflet.js to pan and zoom a big image. // See also: http://kempe.net/blog/2014/06/14/leaflet-pan-zoom-image.html // create the slippy map var map = L.map('image-map', { minZoom: 1, maxZoom: 4, center: [0, 0

Getting pixel coordinates of an image overlay using leaflet map library on click (right click)

由 荒凉一梦 提交于 2019-12-30 06:09:13
问题 I'm trying to get the pixel coordinates of an image overlay on click (right click/contextmenu) using the leaflet map library. Essentially when a user clicks on the image, I need to find the x,y or width,height of where the user clicked on the image. Currently this is what I have. // Using leaflet.js to pan and zoom a big image. // See also: http://kempe.net/blog/2014/06/14/leaflet-pan-zoom-image.html // create the slippy map var map = L.map('image-map', { minZoom: 1, maxZoom: 4, center: [0, 0

Draw a map of a specific country with leaflet

由 心不动则不痛 提交于 2019-12-30 03:32:06
问题 I would like to use the package leaflet with R to draw a map of a specific countries such as Italy, Spain, etc. I checked the basic examples with the function setView() and I tried to give a vector of two values for the arg of latitude and longitutde : m <- leaflet() %>% addTiles() %>% # Add default OpenStreetMap map tiles setView(lng=c(46.00,48.00), lat=c(2.00,6.00), zoom = 4) m # Print the map (map is not centered on a country, it's just a test) But I will never be able to have a specific

Google Map V3 .png groundoverlay opacity

由 这一生的挚爱 提交于 2019-12-29 07:12:13
问题 I have created my first Google Map API with png overlays (thanks to @andresf for assistance). This map has multiple png ground overlays adjacent to each other and can be seen at http://www.earthstation.mobi/coverage.htm Question: How do I set the opacity (transparency?) on each overlay so that I can see the map detail under the overlay? I do not need to adjust this from the webpage, a preset coded into the script will suffice. The code of the page listed above is: <!DOCTYPE html "-//W3C//DTD

Accessing google maps area coordinates (suburb boundaries)

由 纵饮孤独 提交于 2019-12-28 05:54:44
问题 I'm trying to show some data about Australian suburbs. 'Suburb' is the term that Australians use to describe an area, if you are from the rest of the world think post code or something similar. I'd like to be able to get access to the area boundaries that are already in the map. These are examples of the kind of boundary that I'm talking about: Marrickville, Sydney (2204): http://goo.gl/maps/QYRhx Clapton, London (E5): http://goo.gl/maps/3an2Y I want to be able to draw the boundary on the map

Accessing google maps area coordinates (suburb boundaries)

由 為{幸葍}努か 提交于 2019-12-28 05:54:09
问题 I'm trying to show some data about Australian suburbs. 'Suburb' is the term that Australians use to describe an area, if you are from the rest of the world think post code or something similar. I'd like to be able to get access to the area boundaries that are already in the map. These are examples of the kind of boundary that I'm talking about: Marrickville, Sydney (2204): http://goo.gl/maps/QYRhx Clapton, London (E5): http://goo.gl/maps/3an2Y I want to be able to draw the boundary on the map

Using java map for range searches

由 人盡茶涼 提交于 2019-12-27 11:39:33
问题 I have a use case where if a number lies between 0-10 it should return 0 and if it lies between 11-20 it should return 1 etc 0 => 0-3, (0 and 3 are inclusive) 1 => 4-15, (4 and 15 are inclusive) 2 => 16-40, (16 and 40 are inclusive) 3 => 41-88, (41 and 88 are inclusive) 5 => 89-300 (89 and 300 are inclusive) I was thinking how could I implement and was thinking java maps, but it does not allow range searching I am interested in something like this , I have a function int foo() { } if foo

vue谷歌地图聚合功能

由 ≡放荡痞女 提交于 2019-12-26 19:12:47
五申请秘钥在 入口文件里面引入 写入key值 <script src="http://maps.google.cn/maps/api/js?key="></script> 写入一个存放地图的div标签 <div id="googleMap" style="height: 100%;"></div> 五在vue模板里面引入自定义的聚合图标并且挂在在vue实例是哪个 import mar0 from "./img/img/0.png"; import mar1 from "./img/img/1.png"; import mar2 from "./img/img/2.png"; import mar3 from "./img/img/3.png"; import mar4 from "./img/img/4.png"; export default { data() { return { map:null, infowindow:null, clickTimer: null, imgUrl22 :require("../../../../static/img/marker-1.png"), imgUrl11 :require("../../../../static/img/marker0.png"), markerStyles:[ { url:mar0, width:53,

libgdx TiledMap Rendering Performance Issue

由 你说的曾经没有我的故事 提交于 2019-12-25 16:52:08
问题 So I had performance issues with my libgdx project and I tracked it down to the map rendering. I isolated the issue by creating an empty project and do as little as possible, just the map rendering. This is the code I came up with: The Desktop start up project class: package com.me.test; import com.badlogic.gdx.backends.lwjgl.LwjglApplication; import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration; public class Main { public static void main(String[] args) {

Nokia HERE maps: How to get the MCZoom and MCPan components?

由 ℡╲_俬逩灬. 提交于 2019-12-25 16:30:36
问题 I want the MCZoom and MCPan components shown in the HERE maps.(Ref picture) http://here.com/51.506430,-0.127190,13,0,0,normal.day/map=12.966980,77.587290,13,0,0,normal.day I have tried out all the components listed in the documentation, but none of them renders the MCZoom and MCPan. If its not something available for public to use, how do I create a component like this? 来源： https://stackoverflow.com/questions/19842226/nokia-here-maps-how-to-get-the-mczoom-and-mcpan-components
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