plotFEM.mesh

A finite element mesh is a set of triangles defining a two-dimensional region.

Finite element modeling (FEM) uses meshes of triangles to define surfaces.
A surface within a triangle may be either linear or quadratic.
In the order one case each node in the mesh is associated with a basis
function and the basis is called the order one finite element basis.
In the order two case each edge mid-point is also associated with a basis
function. Functions are provided for smoothing, density function estimation
point evaluation and plotting results. Two papers illustrating the
finite element data analysis are Sangalli, L.M., Ramsay, J.O.,
Ramsay, T.O. (2013)<http://www.mox.polimi.it/~sangalli> and
Bernardi, M.S, Carey, M., Ramsay, J. O., Sangalli, L.
(2018)<http://www.mox.polimi.it/~sangalli>. Modelling
spatial anisotropy via regression with partial differential
regularization Journal of Multivariate Analysis, 167, 15-30.

James Ramsay

SpatialfdaR

Spatial Functional Data Analysis

Spencer Graves

plotFEM.mesh function

<dl> <dt>pts</dt>
<dd>A two-column matrix of the locations of the vertices of the mesh.</dd> <dt>tri</dt>
<dd>A three-column matrix of the indices in <code>pts</code> of the triangle vertices.</dd> <dt>xlabel</dt>
<dd>A character string for the label of the abscissa or horizontal axis.</dd> <dt>ylabel</dt>
<dd>A character string for the label of the ordinate or vertical axis.</dd> <dt>xlim</dt>
<dd>A vector of length 2 containing the left and right plotting limits, 
 respectively.</dd> <dt>ylim</dt>
<dd>A vector of length 2 containing the bottom and plot plotting limits, 
 respectively.</dd> <dt>shift</dt>
<dd>A lateral character shift for text plotting.</dd> <dt>nonum</dt>
<dd>A logical constant. If FALSE, numbers for nodes and triangles will
 not be displayed.</dd></dl>

Arguments

Plot a finite element mesh. — plotFEM.mesh

<dl>

 <dt>pts</dt>
<dd>A two-column matrix of the locations of the vertices of the mesh.</dd>

 <dt>tri</dt>
<dd>A three-column matrix of the indices in <code>pts</code> of the triangle vertices.</dd>

 <dt>xlabel</dt>
<dd>A character string for the label of the abscissa or horizontal axis.</dd>

 <dt>ylabel</dt>
<dd>A character string for the label of the ordinate or vertical axis.</dd>

 <dt>xlim</dt>
<dd>A vector of length 2 containing the left and right plotting limits, 
 respectively.</dd>

 <dt>ylim</dt>
<dd>A vector of length 2 containing the bottom and plot plotting limits, 
 respectively.</dd>

 <dt>shift</dt>
<dd>A lateral character shift for text plotting.</dd>

 <dt>nonum</dt>
<dd>A logical constant. If FALSE, numbers for nodes and triangles will
 not be displayed.</dd>

</dl>

plotFEM.mesh: Plot a finite element mesh.

Description

Usage

Value

Arguments

See Also

Examples