area

问题 Basically the title says it all. Rather than plotting every single entry in my database on a map as I do at the moment, I want to query the database and only plot the entries whose co-ordinates fall within the circle drawn around the users current location, however I can't quite figure out how to do it. At the moment, I have written code that plots the users current location on the map along with the locations of all the entries stored on my database and also the circle around the current

问题 I would like to put an onclick event on an area element. Here is my setup: <img id="image" src="wheel.png" width="2795" height="2795" usemap="#Map" > <map name="Map"> <area class="blue" onclick="myFunction()" shape="poly" coords="2318,480,1510,1284" href="#"> </map> I have tried 2 different ways to have an onclick event. Firstly i tried this: $(".blue").click( function(event){ alert('test'); }); I have also tried this: function myFunction() { alert('test'); } Neither of the above work. Do

问题 I am new to R and I have a simple problem (by my opinion) but I haven't found a solution so far. I have a (long) set of 2D (x,y) coordinates - just points in 2D space, like this: ID x y 1 1758.56 1179.26 2 775.67 1197.14 3 296.99 1211.13 4 774.72 1223.66 5 805.41 1235.51 6 440.67 1247.59 7 1302.02 1247.93 8 1450.4 1259.13 9 664.99 1265.9 10 2781.05 1291.12 etc..... How do I filter points (rows in the table) that are in certain area (of any shape!)? How to filter dots that are within a subset

问题 I don't want the border of a window's client area to be seen. Is there any way to remove them? The window is a SDI(Single Document) window. I also noticed that the border appeares only on the top and left side of the client area (no on the right and bottom). I was very confused. Thank you very much! 回答1: Would something like this be useful in your case ? BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) { cs.style = WS_POPUP | WS_VISIBLE; // or others you want cs.dwExStyle = 0; // or others

问题 I use R to read in a shape file to analyse with the sp package polygons of oilfields (longitude-latitude with WGS84) and their respective areas. Unfortunately I do not know the unit of the area output. E.g. the area output is on average 0.85 units (max 4.34) which probably is not in square kilometers since this would be much too small for oilfields. Does anyone know the unit of the area output of Polygons in the sp package? Many thanks! 回答1: To get a correct area computation for a polygon in

问题 I'm trying to write a jQuery function that will resize a set of images according to a specified area, rather than simply a max height or width. There's a similar question here: resize image by area, but I'd like to get it working in jquery and with multiple images at the same time Here's what I'm currently working with: http://jsfiddle.net/szSE5/21/ — it's not functioning the way I intended at the moment. 回答1: How about this: jQuery.fn.resizeImgByArea = function(avgDimension){ var $this = $

问题 I am using google map api v2. I'd like to show a specific map area based on map bound (northeast and southwest coordinates). However, google map api v2 only supports setCenter() method. Is there any formula to calculate center position based on map area? 回答1: Use the map's GetBounds() method from which you can get the center along with other information. 来源： https://stackoverflow.com/questions/7387003/google-map-v2-api-how-to-show-a-specific-map-area

问题 I was working on an issue where I was getting a cast problem trying to cast from Shape to Area (see previous post cast exception question). Now it seems that my shape that is create is not getting created correctly. Instead of posting all of my source code here I am attaching a link to all the source files here. Essentially I create the shape as follows with a standard call of YingYang shape = new YingYang(); shape = shape.moveTo(x, y); shape = shape.scaleBy(size); shape.setColor(getNextColor

问题 i start working on new project and i have task-make color for button, what have href on current page. Buttons there. And in that project that all buttons just image! <map id="schemaMap" name="schemaMap"> <? for ($i=0;$i<3;$i++):?> <area shape="<?php echo $shape ?>" coords="<?php echo $coords[$i] ?>" <? if ($curretAction == $action [$i]):?> onclick ="return false;" <? else: ?> href ="<?php echo $links[$i] ?>" <? endif; ?> alt ="<?php echo $this->translate($alt[$i]); ?>" /> <? endfor;?> </map>

问题 I just upgraded ASP.NET MVC 3 to ASP.NET MVC 4 with .NET 4.5 and root controllers were working but controllers in MVC Area started giving 404 errors. I looked up for IIS 7 QFE patch, but it is not applicable to windows 8. By setting breakpoints, I could see that area was registered successfully and also after complete registration, I see 4 routes registered in routes collection and first one is the route corresponding to area. But any request for area url just falls to 404 error. 回答1: I am