area

See this illustration: What I would like to know is: How to create an area (circle) when given a latitude and longitude and the distance (10 kilometers) How to check (calculate) if a latitude and longitude is either inside or outside the area I would prefer if you can give me code example in Java or specifically for Android with Google Maps API V2 flx What you basically need, is the distance between two points on the map: float[] results = new float[1]; Location.distanceBetween(centerLatitude, centerLongitude, testLatitude, testLongitude, results); float distanceInMeters = results[0]; boolean

I have one list of 100 numbers as height for Y axis, and as length for X axis: 1 to 100 with a constant step of 5. I need to calculate the Area that it is included by the curve of the (x,y) points, and the X axis, using rectangles and Scipy. Do I have to find the function of this curve? or not? ... almost all the examples I have read are about a specific equation for the Y axis. In my case there is no equation, just data from a list. The classic solution is to add or the Y points and multiple by the step X distance... using Scipy any idea? Please, can anyone recommend any book which focusing

How does one compute the area of intersection between a triangle (specified as three (X,Y) pairs) and a circle (X,Y,R)? I've done some searching to no avail. This is for work, not school. :) It would look something like this in C#: struct { PointF vert[3]; } Triangle; struct { PointF center; float radius; } Circle; // returns the area of intersection, e.g.: // if the circle contains the triangle, return area of triangle // if the triangle contains the circle, return area of circle // if partial intersection, figure that out // if no intersection, return 0 double AreaOfIntersection(Triangle t,

I'm making a Java based screen shot application, and I want to make it so when you push a combination of keys on your keyboard something like this video happens where you select and area on your screen, and it takes a screen shot of the selected area. How to select an area to capture using the mouse? Start with something like this. import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.swing.*; /** Getting a Rectangle of interest on the screen. Requires the MotivatedEndUser API - sold separately. */ public class ScreenCaptureRectangle { Rectangle captureRect;

I recently came across a problem where I had four circles (midpoints and radius) and had to calculate the area of the union of these circles. Example image: For two circles it's quite easy, I can just calculate the fraction of the each circles area that is not within the triangles and then calculate the area of the triangles. But is there a clever algorithm I can use when there is more than two circles? Ants Aasma Find all circle intersections on the outer perimeter (e.g. B,D,F,H on the following diagram). Connect them together with the centres of the corresponding circles to form a polygon.