similar to: layers of polylines, events building up on map

hi all, i am experimenting with ym4r mapstraction, i am using yahoo api , when i tried polylines , its not showing up.. the code is var map; window.onload = addCodeToFunction(window.onload,function() { map = new Mapstraction("map_div","yahoo"); map.setCenterAndZoom(new LatLonPoint(37.3853,-122.0172 ),12);map.addSmallControls(); map.addMarkerGroup(new

Hello, my name is Mario and I''m new to Mapstraction (and to Javascript too). I''d like to know how can I remove a listener previously added with the method addEventListener. I found nothing on the documention so I coded a removeEventListener method. If you think it will be useful I can post it (but as i said I''m a newbie to both Javascript and Mapstraction so it can be

Hello, I have two ActiveRecord classes. One is Route the other is Waypoints. I have constructed an XML representation so I can use AJAX to create a Route with all waypoints in a single create call to RouteController. When I call Route.from_xml(xmlString) it is not returning an object - it''s leaving the object (@route) nil, but not erroring. Any ideas? Here''s some code:

Dear help-list members, I am a student at Durham University (UK) conducting a PhD on spatial representation in baboons. Currently, I'm analysing the effect of sampling interval on home range calculations. I have followed the baboons for 234 days in the field, each day is represented by about 1000 waypoints (x,y coordinates) recorded at irregular time intervals. Consecutive waypoints in

Hi all, I''m using Ym4r with the Clusterer. The GMaps code in my controller looks something like this: # geo is an array of lon/lat points session[:gmap] = GMap.new(''map_div'') session[:gmap].control_init(:large_map => true,:map_type => true) session[:gmap].center_zoom_init([38.134557,-95.537109],4) markers = Array.new

Hi! I''ve just started playing around with the ym4r-plugin and try to update a map as explained in the README-example... but nothing happens. I can update normal html. Heres my baby-code: class AdminController < ApplicationController def index @map = GMap.new("map_div") @map.control_init(:large_map => true) @map.center_zoom_init([59.91106, 10.72223],16)

there is an error line 348 Clusterer.popUp( poppedUpCluster ) Clusterer.rePop = function ( clusterer ){ if ( clusterer.poppedUpCluster != null ) Clusterer.popUp( poppedUpCluster ); }; should be Clusterer.rePop = function ( clusterer ){ if ( clusterer.poppedUpCluster != null ) Clusterer.popUp( clusterer.poppedUpCluster ); }; -------------- next part -------------- An HTML

I''d like to add an event listener for dragging markers, but it looks like YM4R GM (and Mapstraction) doesn''t support this. I need an init like: marker = new GMarker(... GEvent.addListener(marker, "dragend", function() { }) but the current setup makes "anonymous" markers - never creates variable that can be used to access them. Has anyone thought about

Hi The general "evolution" of grid.*() functions (that I have written) have tended towards the grid.polyline() style ... grid.*(...) { grid.draw(*Grob(...)) } With my thinking at least heading towards: if you are calling grid.*(), then you want to actually draw something; if you want to just create a description of something to draw, then you want to call *Grob(). In other

Hi, I am having some trouble getting the :info_window_tabs option working, and was wondering if anybody else has used this. I am trying this: marker = GMarker.new(latlng, :info_window_tabs => {title => infoString}) The API says that you should pass a hash, so this is what I am trying. Is there something that I''m missing here? It seems like it should be pretty straightforward.

Hi, I found the funcitoned mentioned in title (center_and_zoom_on_markers) but am having troubles getting it working. I have several markers being added to an array (@gmap_markers = []) in the following manner: marker = GMarker.new(latlng, :info_window => infoString, :icon => my_icon) @gmap_markers << marker I am then trying to do the following: group = GMarkerGroup.new(true,

Hello.. I am playing around on a pilot project with this wonderful Rails plugin.... thanks for sharing it w us ! I read in a post , in reply to this subject yjat : Events are possible. Either through the @map.record_init "azeazeae" (for arbitrary events like domlistener) or through the @map.event_init(@map,:click,"function(){alert(''HOYOYO'');}"). The

Hi All, how can I implement something like this http://econym.googlepages.com/example_hoverchange75.htm with ym4r and rails? I already have markers and the map working. regards Skalla P.S. Please CC me.

I''m quite enjoying the rapid development using Ym4r! However, I''ve hit a roadblock and would appreciate any pointers. I''ve got a map that has GMarkers on it. When you click on a GMarker a beautiful little window pops up, chock full of information. I also have a set of text links on the bottom of the page where each is associated with a single GMarker. I''d

Hi guys at mapstraction, I made a change in the Polyline.toMicrosoft() function, in order to have all the power that a VEShape has, for instance fill color. Below is the new code, if you want to use it, change it, or whatever. Cheers, Beta /** * toMicrosoft returns a Microsoft polyline * @returns a VEShape */ Polyline.prototype.toMicrosoft = function() { var mpolyline; var mpoints

I like to use complex numbers for 2-dimensional geometry. E.g., > polyAngles2 function (xV, yV) { stopifnot((length(xV) == length(yV)) && (length(xV) >= 3)) z <- complex(re = xV, im = yV) c(NA, diff(Arg(diff(z))), NA) # radians, positive is counter-clockwise } > x <- c(0:3) > y <- c(0,0,1,1) > polyAngles2(x,y) / pi * 180 [1] NA 45 -45 NA Bill

Hi! Your plugin is really great! Thanks. One more little question. Is it possible to add event listeners to the maps via your plugin? greetings /till -------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/ym4r-user/attachments/20061106/6b1c6f4f/attachment.html

Assuming your polyline is defined by two vectors, one for the x coordinates, one for the y coordinates, you can try the following library(NISTunits) polyangles <- function(xV,yV) { stopifnot( (length(xV)==length(yV)) && (length(xV) >= 3)) v <- function(i) { c( xV[i]-xV[i-1], yV[i]-yV[i-1])} vlen <- function(v) { sqrt(sum(v*v)) } lV <- rep(NA_real_,length(xV)) for

A polyline by definition has many angles, so your question is ill-formed. And this is a question about math, not R, so is off topic here. I suggest reading Wikipedia. -- Sent from my phone. Please excuse my brevity. On January 29, 2018 11:10:02 PM PST, javad bayat <j.bayat194 at gmail.com> wrote: >Dear R users >I am trying to find a formula to calculate the angle of a polyline. Is

Now available on CRAN is a revised version of the shapefiles package for reading and writing shapefiles in R. New additions, courtesy of others, include the ability to convert a simple R data frame of points, polylines or polygons to a shp format list, which can then be written out to a shapefile with write.shp. There is also a function to convert the read.shp shp format list to a simple data