coordinates

I have a set of GPS coordinates in decimal notation, and I'm looking for a way to find the coordinates in a circle with variable radius around each location. Here is an example of what I need. It is a circle with 1km radius around the coordinate 47,11 . What I need is the algorithm for finding the coordinates of the circle , so I can use it in my kml file using a polygon. Ideally for python. Use the formula for "Destination point given distance and bearing from start point" here: http://www.movable-type.co.uk/scripts/latlong.html with your centre point as start point, your radius as distance,

I would like to make a map of the Netherlands with curved lines between cities. I have two dataframes number one called: df_verticles which contains 24 cities with their lat/lon combination. The second dataframe called: df i want to use to draw a curved line between lat/lon from combination to the lat/lon to combination. > head(df_vertices) city AmountSessions totalkWh AmountRFID scaledAmount scaledkWh Latitude Longitude 1 Alkmaar 13608 104554.68 1326 0.07139012 0.026941910 52.63903 4.755538 2 Almere 11281 100841.42 930 0.05006999 0.025985067 52.39447 5.282043 3 Amersfoort 7719 67663.30 1198 0

A common question, but I still need help. I'm trying to get and store the mouse coordinates when someone clicks within the canvas. my HTML <canvas id="puppyCanvas" width="500" height="500" style="border:2px solid black" onclick = "storeGuess(event)"></canvas> and my javascript //setup canvas var canvasSetup = document.getElementById("puppyCanvas"); var ctx = canvasSetup.getContext("2d"); guessX = 0;//stores user's click on canvas guessY = 0;//stores user's click on canvas function storeGuess(event){ var x = event.clientX - ctx.canvas.offsetLeft; var y = event.clientY - ctx.canvas.offsetTop; /

What event is fired when the MKMAPVIEW changes extent (zooms in or out, panning)? I need to get the coordinates that are used to display the map. You should adopt the MKMapViewDelegate protocol and implement mapView:regionDidChangeAnimated: method which will be called in the event the region changes. However since it will be called many times when scrolling you should take that into consideration before implementing that method. Getting the Top-Left coordinate of the map CLLocationCoordinate2D topLeftCoordinate = [self.mapView convertPoint:CGPointMake(0,0) toCoordinateFromView:self.mapView];

I am using code found in Hello Android, 3rd Edition for Pinch to Zoom functionality. After using this the pinch to zoom works fine, but after zooming i want to get the absolute click position on the image view. Here is my code package org.example.touch; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.Matrix; import android.graphics.PointF; import android.os.Bundle; import android.util.FloatMath; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.GridView; import