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scatterquad2 1.0
File ID: 83724






scatterquad2 1.0
Download scatterquad2 1.0http://www.mathworks.com/Report Error Link
License: Shareware
File Size: 10.0 KB
Downloads: 24
User Rating:5 Stars  (1 rating)
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scatterquad2 1.0 Description
Description: scatterquad2(X,Y,Z) finds the volume under the surface defined by the points (X(i),Y(i),Z(i)) with linear interpolation on the Delaunay triangulation of (X,Y) and Z=0 outside the convex hull of (X,Y).

Example:
load seamount
scatterquad2(x,y,z-min(z)) % returns 190.7996
inR = (x>=211.1 & x<=211.4 & y>=-48.35 & y<=-48);
scatterquad2(x,y,(z-min(z)).*inR) % returns 142.3083
scatterquad2(x,y,1) % returns 0.2696

This function is *much* faster than using DBLQUAD with TriScatteredInterp, or similar methods.

For functions that can be evaluated at arbitrary points, use DBLQUAD or QUAD2D instead. For regular grids, instead use TRAPZ twice.

License: Shareware

Related: faster, dblquad, triscatteredinterp, Function, scatterquad xyzminzinr, scatterquad, similar

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 10.0 KB

Downloads: 24



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