polygon

I have continuous LatLngs of various areas in a city. Is there any way I can create clickable polygons with it. Once way to go about would be to Generate polygons with the available LatLngs.( I want to visually show the polygons on the map with color encoding) Set up setOnMapClickListener . Do a point inside polygon test. I understand that this is very naive. What are the alternative approaches? bittterbotter Here's how I did it. Polygon polygon = getMap().addPolygon(new PolygonOptions() .add(new LatLng(12.780712, 77.770956), new LatLng(12.912006, 77.229738), new LatLng(12.412006, 77.629738),

Calculating the area of a simple irregular polygon is trivial . However, consider the self-intersecting polygon ABCDEF shown at left below: If we use the linked-to formula above traversing the points in polygon order, we get an area of 0. (The 'clockwise' area cancels out the 'counter-clockwise' area.) However, if we sort the points radially around a center and calculate the area, we get the incorrect area of the polygon ABEDCF at right above. How can I best find the visible area of a self-intersecting polygon? (If the answer requires creating phantom points for each intersection, please

As an extension and partial answer to my thread I wrote a simple algorithm that given a set of points(with xy coordinates) can form a non self-intersecting polygon. Claim: Given an arbitrary set of points with different coordinates it is always possible to construct a regular or irregular, non self-intersecting polygon. The algorithm: Assume there is a set V containing all the vertices 1) Sort all vertices in V by x-coordinate 2) Imagine a straight line (we'll call that "the divider") parallel to the x-axis which starting from the first node expands to infinity and divides/splits the vertices

As far as I know, there is currently no way to display SVG polygons in the Raphael Javascript library. I'm building an application that needs to read in SVGs and them display them in Raphael, however, many of these SVGs use polygons. For example, I'm reading in an SVG with a polygon in this format: <polygon points="260.5,627.75 259.563,628.313 258.625,628.563 258.25... So, I'm wondering...is there a way to convert the polygon points into a path which I could draw in Raphael? I've seen a few applications using python and PHP, but so far I can't find anything that is strictly javascript. Any