# hexMeshBox

Below is a demonstration of the features of the `hexMeshBox` function

## Contents

```
clear; close all; clc;
```

## Syntax

`[meshStruct]=hexMeshBox(boxDim,boxEl,outputStructType);`

## Description

This function generates a mesh structure containing element and node data for a hexahedral element meshed box. The box dimensions in each of the 3 directions are based on the boxDim input (1x3 vector). The number of elements in each direction is based on the boxEl input (1x3) vector. Finally the type of output structure is based on the optional final input outputStructType. By choosing 1 the old mesh structure is used. By using the option 2 the newer output structure form is used which is compatible with the meshView function. The default option is 1.

## Examples

Plot settings

fontSize=20; faceAlpha1=0.8;

## CREATING A MESHED BOX

boxDim=[5 6 7]; boxEl=[4 5 6]; [meshStruct]=hexMeshBox(boxDim,boxEl); E=meshStruct.E; V=meshStruct.V; F=meshStruct.F; Fb=meshStruct.Fb; faceBoundaryMarker=meshStruct.faceBoundaryMarker;

Plotting model

cFigure; title('Box boundaries faces','FontSize',fontSize); hold on; gpatch(Fb,V,faceBoundaryMarker,'k',faceAlpha1); % patchNormPlot(Fb,V); axisGeom(gca,fontSize); colormap(gjet(6)); icolorbar; drawnow;

Visualizing model internal mesh with `meshView`

%Recreate mesh but output structure compatible with meshView [meshStruct]=hexMeshBox(boxDim,boxEl,2); %Use meshView to visualize mesh meshView(meshStruct);

* GIBBON* www.gibboncode.org

*Kevin Mattheus Moerman*, gibbon.toolbox@gmail.com

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License: https://github.com/gibbonCode/GIBBON/blob/master/LICENSE

GIBBON: The Geometry and Image-based Bioengineering add-On. A toolbox for image segmentation, image-based modeling, meshing, and finite element analysis.

Copyright (C) 2019 Kevin Mattheus Moerman

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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