Polygon Shaft
calculates surface area A and its standard uncertainty uA for any arbitrary polygon in a plane given by coordinates x and y and their respective standard uncertainties ux and uy. The inputs are assumed to be VECTORS, x, ux, y and uy all should have the same size. The uncertainties are assumed to...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): determine surface area and uncertainty from points in a plane Download |
A function which gives the area of a 3D planar polygon which does not lie in the x-y plane.AREA3D(X,Y,Z) calculates the area of a polygon in space formed by vertices with coordinate vectors X,Y and Z. If the coordinates of vertex v_i are x_i, i and z_i twice the area of a polygon is given by:2...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (42): area3D Download |
When interpolating on a given data set, convhull is used to set the boundaries of the interpolation area. Because convhull only minimizes the outline length, there might be interpolation lines which are unwanted (see figure).hullfit tries to minimze the polygon area instead resulting in a hull...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 20.48 KB | Download (43): hullfit Download |
Accepts a list of x and y coordinates. First, we find the smallest circumscribing polygon from this list (convhull). Finally, we use this polygon's coordinates to find the smallest circumscribing circle. We find the circle by minimizing the distance of the circle center to the polygon's...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (43): circum circle Download |
This function tries to improve the slow Matlab INPOLYGON function.There are few other fast codes on FEX (e.g., by Darren Engwirda). After exploring many different ways, I come to the conclusion that Darren Engwirda's approach is close to optimal. So here you'll find a general method that share...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (46): 2D polygon interior detection Download |
Read and Write Wavefront OBJ geometry and MTL files.A Wavefront Geometry Object file is supported by many 3D programs, it looks like:v 0.000000 2.000000 0.000000v 0.000000 0.000000 0.000000v 2.000000 0.000000 0.000000v 2.000000 2.000000 0.000000% Vertices Coordinates 4f 1 2 3 4% Faces 1The...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 204.8 KB | Download (53): Wavefront OBJ toolbox Download |
Find the intersection points of the edges of two 2D polygons, a simple function made to follow up a Newsgroup discussion
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (45): 2D Polygon edges intersection Download |
This is a mex wrapper for Angus Johnson's Clipper library: http://www.angusj.com/delphi/clipper.php, based on Sebastian HdoTAlz's mex wrapper for the GPC library. This library has some speed advantages over GPC, but the primary addition is the ability to offset polygons. In order to use this, you...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (44): Polygon Clipping and Offsetting Download |
This function Showvol, is a small GUI to render a Phong shaded Iso Surface of volume data, it contains 3 render functions (see screenshot).- Phong Shaded Isosurface polygon mesh which can be rotated and zoomed- 3D Slice View- Fast preview, phong shaded Iso surface render to image (only x,y and z...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 6.92 MB | Download (47): Showvol Isosurface Render Download |
This simple function use three points as input which can be 2D,3D...nD. And will calculate the area and angles of this triangle / polygon.The last version also support the precise 'Orthogonal-triangular decomposition' area calculation method.
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (51): Triangle Area and Angles Download |
By Qingdu Li,Institute for Nonlinear Systems, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China.Email: liqd@cqupt.edu.cn or qingdu_li@163.comAs one of the most important results in chaotic dynamics, topological horseshoe theory provides a powerful tool in rigorous...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 890.88 KB | Download (49): A toolbox for finding horseshoes in 2D maps Download |
CUTPOLYGON - Split a 2D polygon by a line, and remove one of the sidesUse CUTPOLYGON to cut alias intersect alias split alias slice a polygon P(being a series of connected X,Y coordinates) with a line L (defined bytwo points), removing a specified side s. L can serve as a bottom limit('B'), top...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (47): cutpolygon Download |
[X,Y,Z]=polyrevolve(x,z,n)This function revolves a 2D polygon around the Z-axis. It copies the 2D data points evenly around the axis and produces a 3D data set suitable for input to MESHGRID and GRIDDATA to create a 3D surface.Useful to convert 2D axisymmetric data to 3D surfaces for presentation...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (48): polyrevolve Download |
Returns the orientation and signed area of a 2D polygonSyntax:[ORIENT,SAREA] = POLYORIENT(X,Y)Inputs:X, Y Vectors with the polygon verticesOutputs:ORIENT Polygon orientation. 1 if the orientation is counter-clockwise (direct), 0 otherwiseSAREA Signed area of the polygon, negative if orientation...
Platforms: Matlab
License: Shareware | Cost: $0.00 USD | Size: 10 KB | Download (39): polyorient Download |
Gmap_geo provides a Google Map location picker widget for Geo point fields and a Google Maps-based output formatter for point, line, and polygon fields.HOWEVER: Gmap_geo was written for an earlier iteration of the Geo module. It has not been updated to use recent Geo API changes. If you are...
Platforms: PHP
License: Freeware | Size: 10 KB | Download (43): GMap + Geo Download |
ShapeKit is a geometry library for iOS that aims to bridge GEOS with Apple's MapKit. Features * ShapeKitGeometries are standard cocoa objects ShapeKitPoint *myPoint = [[ShapeKitPoint alloc] initWithCoordinate:CLLocationCoordinate2DMake(0, 0)]; * ShapeKitGeometries have standard MKShape...
Platforms: Mac
License: Freeware | Size: 30.72 KB | Download (41): ShapeKit Download |
A program to compute the minimum weight triangulation of a (simple) polygon with holes (or pointgon for short). The four algorithms underlying this program are based on recursively cutting out triangles, one side of which is on the perimeter (an very simple idea proposed in [Grantson et al....
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 71.68 KB | Download (38): Pointgon Download |
Ia*m working on a little SVG project using RaphaA*l. Unfortunately, Illustrator exports polygons in its SVG output which is not supported by RaphaA*l (only paths are supported). So I wrote an app to convert the SVG polygon string to an SVG path string.
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 40.96 KB | Download (40): poly2path Download |
With the imagemap editor you can easily draw ALL the standard image map shapes (rectangle, circle, polygon), and you can have full control over the generated HTML code as well. The editor natively uses the canvas HTML element to draw the shapes on a given image. The ExplorerCanvas library from...
Platforms: Mac
License: Shareware | Cost: $0.00 USD | Size: 8.1 MB | Download (49): Desktop Image Map Editor Download |
GeoCalculator, the new latest thing in geometrical math. GeoCalculator is your one stop for solving any geometry-related equations. Features such as Triangle Solvers, Polygon Finders, and TONS of equations lets you solve ALL equations that you need.
Platforms: *nix
License: Freeware | Size: 40.96 KB | Download (43): GeoCalculator Download |