Griddata

This functions uses GRIDDATA to interpolate pixel values from scatterred points on a head image. A reference image can be used to interactively select point locations from the 10/20 international system (EEG electrode position). Options for interpolation include linear and cubic and nearest. The... Platforms: Matlab

sproject.mpanopticon.mplot3sphere.mSee StereoGuide.pdf(last plotting routine may cause problems with griddata and memory bounds if input too large) Platforms: Matlab

slice.m does not allow non-monotonic matrices or NaN values.However, a 3D volume may often meet these limitations. For example, a 3D grid may be constructed first by 2D interpolations of scattered Z values to xy grids (such as topography at different depths), and then a 3D interpolation of data... Platforms: Matlab

While interpolation functions are available builtin in MATLAB, it requires data in specified griddata format. Consider sampling data from an experiment and you are missing some points and you don't want to repeat the experiment but require data at all grid-points for full calculation. This might... Platforms: Matlab

Provides linear and quadratic interpolation methods for functions defined on scattered 2D datasets.The quadratic method in tinterp seems to be superior when compared to the cubic method in gridata.Type "help tinterp" & "help tester" Platforms: Matlab

The time consuming part of griddata3 function is delaunay tessellation. If there are multiple volumes having the same scattered coordinates, griddata3ev (ev: extended version) func makes tessellation once and apply it to all volumes.If the volumes are too large, griddata3ev function gives memory... Platforms: Matlab

ARCGRIDWRITE converts data in a matlab grid (as produced by eg. meshgrid and griddata) into a text file in Arc ASCII Grid Format. The file can also be automatically converted to raster on PC's with ARCINFO installed. EXAMPLE - create a raster grid of the peaks... Platforms: Matlab

USAGE===== >> CONVERT_voxels_to_stl(STLname,gridDATA,gridX,gridY,gridZ,'ascii')converts the voxelised object contained within the 3D logical array into an STL surface mesh, which is saved to the ascii file . The x,y,z axes for are defined by , and . INPUT PARAMETERS================ STLname -... Platforms: Matlab

This function carries out the following tasks:1) Imports a set of xyz scatter data, interpolates them to a uniform mesh, where the user defines the interpolation method and mesh resolution.2) Creates contour and 3D figures of the results and saves them as separate MATLAB figures.3) Exports a text... Platforms: Matlab

[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

FFNDGRID grids unevenly spaced data.This is a generalization of FFGRID applicable to N-D data. FFNDGRID may also be used to generate N-dimensional histograms or densityplots.This is very useful when dealing with data which are difficult to view using plot3 (which, in my experience, is the case... Platforms: Matlab