warpmovie3d: Creates a sequence of images showing predefined steps of warping two meshes or landmark configurations (2D and 3D) into each other

Description

Creates a sequence of images showing predefined steps of warping two meshes or landmark configurations (2D and 3D) into each other

Usage

warpmovie3d(
  x,
  y,
  n,
  col = "green",
  palindrome = FALSE,
  folder = NULL,
  movie = "warpmovie",
  ...
)
# S3 method for matrix
warpmovie3d(
  x,
  y,
  n,
  col = "green",
  palindrome = FALSE,
  folder = NULL,
  movie = "warpmovie",
  add = FALSE,
  close = TRUE,
  countbegin = 0,
  ask = TRUE,
  radius = NULL,
  links = NULL,
  lwd = 1,
  ...
)
warpmovie2d(
  x,
  y,
  n,
  col = "green",
  palindrome = FALSE,
  folder = NULL,
  movie = "warpmovie",
  links = NULL,
  lwd = 1,
  imagedim = "800x800",
  par = list(xaxt = "n", yaxt = "n", bty = "n"),
  ...
)
# S3 method for mesh3d
warpmovie3d(
  x,
  y,
  n,
  col = NULL,
  palindrome = FALSE,
  folder = NULL,
  movie = "warpmovie",
  add = FALSE,
  close = TRUE,
  countbegin = 0,
  ask = TRUE,
  radius = NULL,
  xland = NULL,
  yland = NULL,
  lmcol = "black",
  ...
)

Arguments

x: mesh to start with (object of class mesh3d)
y: resulting mesh (object of class mesh3d), having the same amount of vertices and faces than the starting mesh
n: integer: amount of intermediate steps.
col: color of the mesh
palindrome: logical: if TRUE, the procedure will go forth and back.
folder: character: output folder for created images (optional)
movie: character: name of the output files
...: additional arguments passed to shade3d (3D) or points (2D).
add: logical: if TRUE, the movie will be added to the focussed rgl-windows.
close: logical: if TRUE, the rgl window will be closed when finished. width and 200 the height of the image.
countbegin: integer: number to start image sequence.
ask: logical: if TRUE, the viewpoint can be selected manually.
radius: numeric: define size of spheres (overides atuomatic size estimation).
links: vector or list of vectors containing wireframe information to connect landmarks (optional).
lwd: numeric: controls width of lines defined by "links".
imagedim: character of pattern "100x200" where 100 determines the width and 200 the height of the image.
par: list of graphial parameters: details can be found here: par.
xland: optional argument: add landmarks on mesh x
yland: optional argument: add landmarks on mesh y
lmcol: optional argument: color of landmarks xland and yland

Author

Stefan Schlager

Details

given two landmark configurations or two meshes with the same amount of vertices and faces (e.g a mesh and its warped counterpart), the starting configuration/mesh will be subsequently transformed into the final configuration/mesh by splitting the differences into a predefined set of steps.

A series of png files will be saved to disk. These can be joined to animated gifs by external programs such as imagemagick or used to create animations in PDFs in a latex environment (e.g. latex package: aninmate).

Examples

Run this code



###3D example
 data(nose)##load data
if (interactive()){
##warp a mesh onto another landmark configuration:
longnose.mesh <- tps3d(shortnose.mesh,shortnose.lm,longnose.lm,threads=1)

warpmovie3d(shortnose.mesh,longnose.mesh,n=15)## create 15 images.

### ad some landmarks
warpmovie3d(shortnose.mesh,longnose.mesh,n=15,xland=shortnose.lm,
            yland=longnose.lm)## create 15 images.


### restrict to landmarks
warpmovie3d(shortnose.lm,longnose.lm,n=15,movie="matrixmovie")## create 15 images.

### the images are now stored in your current working directory and can
### be concatenated to a gif using an external program such as
### imagemagick.
}
### 2D example
if (require(shapes)) {
bb <- procSym(gorf.dat)
### morph superimposed first specimen onto sample mean
warpmovie2d(bb$rotated[,,1],bb$mshape,n=20,links=c(1,5,4:2,8:6,1),imagedim="600x400")
## remove files
unlink("warpmovie00*")
}