Hi,
please, someone can tell me how can I to calculate the area of a
polygon on the earth's surface where I know the coordinates (lat/lon)
of its points?
Since you know the coordinates of every vertex, break it into
triangles. The area of every triangle is that triangle's base
times its height divided by two. Sum the areas.
.
Re: polygonal area on a sphere ... polygon on the earth's surface where I know the coordinates (lat/lon)... I must find a point internal to the polygon and then ... consider all the triangles?... the calculus of the areas isn't very ... (sci.geo.satellite-nav)
Re: polygonal area on a sphere ... polygon on the earth's surface where I know the coordinates (lat/lon)... I must find a point internal to the polygon and then ... consider all the triangles?... the calculus of the areas isn't very ... (sci.geo.satellite-nav)
Re: outline polygon of overlapping triangles ... where I can get an algorithm that creates ... If you want the polygon that is the union of the ...triangles, the suggestion to use Alan Murtha's ... (comp.graphics.algorithms)
Re: From Triangle tiles to convex Polygons. ... I start out with a complicated non-convex polygon with holes. ... it into OpenGL GLU, and I get back a few hundred triangles that ... problem is that a few hundred triangles is way too many, ... I think you can do this by taking your triangulation and merge triangles to build multiple convex polygons from it. ... (comp.graphics.algorithms)
Re: Uniformly Distribute Points inside Polygon ... With the meshgrid, I ... won't know how many points will fall into the polygon beforehand.... Since you are still interested in filling triangles, I thought I would fix up ... It is not an absolutely uniform filling in the sense of, say, packing spheres ... (comp.soft-sys.matlab)
