Version 1.0-6 23/10/2021
Fixed a bug that kept deldir() from working when "x" is a
point pattern.
Version 1.0-5 10/10/2021
Changed the protocol for "digging out" x and y, and
"digging out" z. The rule now is: if the specified argument
is found (located in the global environment, or given explicitly)
then *use* it! Only if it is *not* found elsewhere should it be
sought in the "x" argument. (This change was implemented after
Duncan Murdoch convinced me to see the error of my previous ways.)
Adjusted/corrected the processing of generic lists, as the x
argument, in deldir()
Re-wrote the discussion of the argument processing protocol in
deldir.Rd, so as to make it properly reflect the current behaviour
of the function. It is also hoped that the clarity of the
discussion has been improved.
Fixed various glitches and typos in the code and the help files.
Version 1.0-4 06/10/2021
Fixed more bugs in deldir() w.r.t. argument processing, again
pointed out to me by Duncan Murdoch.
Fixed a bug in triang.list(); it crashed if there were not
any actual triangles in the "triangulation"!
Made an adjustment to plot.triang.list() (added an argument to
specify a colour for the enclosing rectangle.
Version 1.0-3 06/10/2021
Fixed bug in deldir() (more explicitly in digOutz()) that
was pointed out to me by Duncan Murdoch.
Version 1.0-2 05/10/2021
Adjusted plot.deldir() so that it no longer insists that cmpnt_lty
be numeric, but also allows (as it should) the text strings "solid",
"dashed", "dotted", "dotdash", "longdash", and "twodash".
Version 1.0-1 30/09/2021
Modified deldir() so that if argument "x" is a data frame it is
*NOT* required to have columns named "x" and "y". If there is no
column named "x", the x-coordinates are taken to be the *first*
column named neither "y" nor "z". Likewise if there is no column
named "y", the y-coordinates are taken to be the *first* column
that is named neither "x" nor "z" and is not equal to the column
previously selected to be the x-coordinates.
Also modified deldir() so that the "x" argument is allowed to be
a matrix. The same convention that was used when "x" is a data
frame is applied.
This modification was made in response to an observation made by
Jakob Bossek and makes use of a suggestion from Duncan Murdoch.
Version 1.0-0 27/09/2021
Removed/eliminated all traces of the (basically useless) facility
for incorporating dummy points into the triangulation/tessellation.
This facility was a historical artefact that had hung around much
too long.
Made an adjustment to plot.tile.list(); it no longer throws an
error if the border argument is of length greater than 1; it now
simply uses the first entry.
29/09/2021
Ran the *.Rd files through ispell and found and corrected an
embarrassing number of errors. Did not increment the version
number.
Version 0.2-13 26/09/2021
Made some adjustments to the syntax of deldir() to accommodate
problems encountered with finding the "z" argument.
Changed the position of "z" in the argument list (to follow "x"
and "y").
Got rid of the message being issued on the first call, and the
suppressMessage argument.
Version 0.2-12 28/05/2021
Adjusted the application of "\dontrun{...}" in the help files,
eliminating its unnecessary application in some instances, and
replacinng it by "\donttest{...}" in one instance.
Version 0.2-11 12/05/2021
Changed the terminology in the help and code comments so as to
refer to the entries of the "z" argument as "tags" and not
as "weights". The latter term is misleading.
Adjusted divchain() so as not to insist that the "z" argument
be a factor. It may now be a factor or a vector of any mode.
If is not a factor then it is coerced into one.
Added a "tags" component to the list returned by lawSummary().
(This was instigated by an enquiry from Art Stock.)
Version 0.2-10 09/02/2021
Added the cvt() (Centroidal Voronoi Tiles) function at the
request of Michaél Aupetit.
Amended deldir() so that the returned object has attributes
"round" (TRUE if argument "round" was TRUE) and "digits"
(equal to the value of argument "digits" if "round" is TRUE,
equal to NA otherwise.)
Made some adjustments to the help for deldir() and plot.tile.list().
Changed the name of Vol.Tri.Points to volTriPoints, so as to make
it more consistent with my usual naming conventions.
Added the "\version" macro.
10/02/2021
Made some adjustments to the help for cvt().
16/02/2021
Submitted to CRAN
Version 0.2-9 16/01/2021
Fixed (???) a bug in doClip() revealed by reverse-dependent package
visualFields. My logic (using almost.match()) was completely out
to luntch. Got rid of almost.match() and introduced a new function
findNewInOld() which I *think* does things right.
Adjusted tile.list() so that when it clipps tiles it checks for
the availability of the polyclip package (and throws an error if
this package is not available).
Adjusted the help for plot.tile.list(), doing the same
re-arrangement of plotting colours in one of the examples, as is
used in the help for tilePerim(). The re-arrangement serves to
produce better contrasts between contiguous tiles.
Version 0.2.8 09/01/2021
Changed the URL in the help for Vol.Tri.Points from
http://www.gwsdat.net
(insecure) to
https://protect-au.mimecast.com/s/demRC91WzLH6qo3TorzN7?domain=gwsdat.net
(kludgy but secure).
Corrected a typo in the help for Vol.Tri.Points.
Version 0.2-7 07/01/2021
Fixed a problem that the Debian compiler objected to; changed calls,
in succ.r, to intpr() of the form "... -1,i,1)" to "... -1,ndi,1)"
where ndi (dummy integer) is an integer array with ndi(1) = i. This
is to satisfy the idiosynchrasies of the compiler that Debian uses.
Added the Vol.Tri.Points data set provided by Wayne W. Jones
Version 0.2-6 05/01/2021
Fixed bug whereby inadquate memory allocation for the
adjacency list went undetected. Problem point out
by Wayne Jones.
Version 0.2-5 29/12/2020
Made adjustments to tile.list() so that the listed tile could
be clipped by a specified polygon, in the same manner as that
in which tiles were clipped in the past by plot.tile.list().
This adjustment was made at the request of Vasileia
Papathanasopoulous.
Note that plot.tile.list() retains the capacity to clip the
tiles, but if the tiles have *already* been clipped by tile.list()
then an error is thrown.
Changed the default for the "warn" argment in plot.tile.list()
from FALSE to TRUE.
Made the necssary corresponding adjustments to tilePerim()
so that it can handle clipped tiles.
Added a "clipp" argument to tileInfo() so that the tiles in
question can be clipped.
Amended tileInfo() so that it now includes tile perimeters in
the information summary produced.
Adjusted naming conventions slightly so that names are of the
form "pt.1", "pt.2", ..., rather than "tile.1", "tile.2", ....
Version 0.2-4 09/11/2020
Fixed glitches in plot.deldir() --- replaced as.vector() by
unlist(). If x is a list, as.vector(x) is the same as x!!!
(A list *is* a vector!!!)
Version 0.2-3 06/11/2020
Fixed up glitch in binsrt.R --- was still using "nerror", although
this argument had been eliminated from the ratfor code in binsrt.r.
Adjusted init.c appropriately.
Eliminated redundant variables ntpm (succ.r) and anticl (swap.r).
Submitted to CRAN 06/11/2020.
Version 0.2-2 05/11/2020
Adjusted calls to intpr() in the Ratfor/Fortran, changing
"... -1,0,0)" to "... -1,ndi,0)" where ndi (dummy integer)
is an integer array. This is to satisfy the idiosynchrasies
of the compiler that Debian uses.
Tested using rhub, 05/11/2020, with the call:
check("deldir_0.2-2.tar.gz",platform="debian-gcc-release")
Tested OK.
Submitted to CRAN 05/11/2020.
Version 0.2-1 25/10/2020 --- 31/10/2020
Got rid of the kludgy "nerror" construction in the Fortran/Ratfor
code and replaced it with appropriate use of calls to the rexit()
subroutine. (See Writing R Extensions 6.2.1.) Since this is a
fairly major change, I kicked the version number up from 0.1-*
to 0.2-*.
Tidied up this ChangeLog!!!
Changed the procedure for producing messages when storage needs to
be incremented so that it uses the message() function rather than
cat(). Whence the user can suppress these messages, if it is so
desired, by using suppressMessages(). Added comments to this effect
to the help for deldir.
Adjusted the "history" of the package in the help for deldir, to
make it more appropriate to current circumstances.
Amended the package startup messages.
Removed the somewhat antiquated initial message that was put out
by deldir on its initial call.
Revised the DESCRIPTION to make the package depend on
R >= 4.0.0. (Otherwise the calls to labelpr() cause a
failure to load the package.)
01/11/2020
Revised the ratfor code to use intpr() and *not* labelpr(),
so as not to cause undue hardship to those for whom upgrading
to R >= 4.0.0 is not under their control.
Backed off on making deldir depend on R >= 4.0.0.
02/11/2020
Added a "nickname" in First.R
04/11/2020
Commenced process of submitting to CRAN
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-29 07/09/2020
Changed the names of arguments "col" and "lty" of plot.deldir()
to "cmpnt_col" and "cmpnt_lty" so that "col" (in particular) can
be passed as a "..." argument.
Restructured these arguments as *named* vectors or lists.
Re-wrote the help file accordingly.
Revised the examples for plot.deldir().
Added an argument "asp" (aspect ratio), defaulting to 1, to
plot.deldir(). This should have been present all along. Dunno
what I was thinking.
Got rid of the call to par() setting pty="s"; dunno what I thought
this was accomplishing. (Probably thought it was doing what setting
asp=1 actually *is* doing. Adjusted the code so that one can
effectively pass pty="s" as a "..." argument, so as to be able
to reproduce old results *exactly*.
Changed the "plotit" argument of deldir() to "plot"; the "plotit"
name was a hangover from the dark ages. It has not been necessary,
for decades, to avoid function names as the names of (non-function)
arguments.
Uploaded to CRAN 13/09/2020.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-28 15/07/2020
Removed a browser() call that I'd left lying around in deldir().
Grrrrrr!!!!
Uploaded to CRAN 15/07/2020.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-27 15/07/2020
Fixed a bug in deldir(), w.r.t. the lengths of vectors x and y
after duplicated points have been eliminated. (Revealed by
CRAN having tested an example in the grapherator package,
which depends on deldir.
Added a data set "grapherXmpl" which is taken from the example
in the grapherator package.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-26 14/07/2020
Fixed a bug in tile.list(); sometimes the edges of the
tiles could be effectively of zero length, possibly resulting
in an "invalid" tile. Added an argment minEdgeLength to
tile.list() specifying the smallest value that an edge length
can have. This defaults to sqrt(.Machine$double.eps) times
the length of the diagonal of the rectangle.
Thanks to Kodi Arfer for pointing out this problem.
Added argument "round" (defaulting to TRUE) to deldir().
If round==FALSE then rounding is no longer done.
Added function print.deldir() which prints out a a very brief
description of an object of class "deldir" as returned by deldir().
Fixed a bug in deldir; if the points got clipped to a specified
rectangular window ("rw") then "n", the number of points,` was
wrong. Made corresponding adjustments to "ind.orig".
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-25 03/02/2020
Fixed up error message calls to intpr() which no longer
work with the gcc 10 compiler. A call of the form
call intpr("Point number =",-1,j,1)
no longer works. One must do
tmp(1) = j
call intpr("Point number =",-1,tmp,1)
i.e. the penultimate argument has to be a vector.
Many thanks to Elliott Sales de Andrade for pointing out
the problem and the fix.
Uploaded to CRAN 03/02/2020
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-24 01/08/2019
Added a bit of clarification to the error message "Cannot find
an enclosing triangle" in the trifnd subroutine. (Used intpr()
to print out the number of the point being added.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-23 31/07/2019
Fixed a bug in storage allocation which arose (only) when the
storage allocation had to be increased. Thanks to Frederic Pons
(of "Service Risques Inondations Littoraux et Hydraulique") who
provided a data set which revealed the bug (during the course of
investigating error messages that were generated).
Improved a couple of error messages produced by subroutines
circen, qtest1 and trifnd.
Submitted to CRAN 31/07/2019.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-22 23/06/2019
Added a "drop=FALSE" argument to the line
mm <- m[match(theta.0, theta),]
in tile.list.R, changing it to
mm <- m[match(theta.0, theta),,drop=FALSE]
to guard against an infelicity that *could* (???) arise if
theta.0 turned out to have length 1. This was motivated by
an error message that Vitor Sampaio received when he used
adaptive.density() in spatstat. The error went away when
he re-started R (!!!) but seemed to have been triggered by
such an infelicity. I don't *think* theta.0 could ever
have length 1 in real life, but the "drop=FALSE" doesn't
hurt.
Fixed an error in master.r that was introduced in version
0.1-16 when I fixed the bug in trifnd.r that was pointed out
by Adam Dadvar. In adding a line to master.r I inadvertently
deleted the line "if(nerror>0) return" after the call to the
"addpt" subroutine. Consequenty the "madj" parameter/dimension
did not get incremented when this was called for. As a result
(the intricacies of which I have not investigated) a "nerror = 1"
condition was induced later on.
Thanks to Peter Bastian for pointing out the problem.
Adjusted deldir() to throw a "graceful" error if there is only
one point in the pattern and no dummy points. Previously this
situation led to an un-graceful error. (Previously an error
was thrown only if there were zero points in the pattern; this
is insufficiently stringent.)
Submitted to CRAN 05/07/2019.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-21 15/06/2019
Fixed yet another screw-up in init.c in src; the specifications
for "master" were wrong (as a result of the removal of a couple
of unused arguments from the "master" subroutine).
Submitted to CRAN 15/06/2019.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-20 12/06/2019
Fixed several infelicities in the ratfor/fortran code in
respect of variables being declared or appearing as arguments
but never being used.
Removed redundant fexit* files from src; these were generating
spurious warnings (and should of course have been removed as
soon as I switched from fexit* to rexit).
Submitted to CRAN 14/06/2019.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-19 11/06/2019
Submitted to CRAN 11/06/2019.
However it was never installed on CRAN due to problems arising
from redundant fexit* files having been lying around in src.
(See above.)
Made substantial revision to the lawSummary function, after
lengthy email discussions with Kai Xu.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-18 22/02/2019
Added the function lawSummary (at the request of Kai Xu).
Changed trifnd.r to call rexit rather than calling fexit
(which in turn calls fexitc). The subroutine rexit is (now)
provided automatically by R. This change was made at the
behest of Brian Ripley.
Documented lawSummary(); revised this function in accordance
with Kai Xu's suggestions. 04/06/2019.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-17
Corrected the help file for deldir; removed reference to "vi3"
(which no longer exists) in the description of the "dirsgs"
component of the object returned.
Added in a new function lawSummary() at the request of Kai Xu.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-16 30/12/2018
Added error traps in trifnd.r to avoid going into an infinite
loop when a certain sort of collinearity problem arises.
Thanks to Adam Dadvar who drew my attention to the problem
and provided a data set to illustrate the problem
Added the data set "niProperties" (kindly provided by Adam
Dadvar) to illustrate collinearity problems
Further revised the help page for deldir, giving some explanation
of the error traps and error numbers.
Uploaded to CRAN 04/01/2019
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-15 01/04/2018
Changed the example in triMat.Rd to use the data with which
Jay Call illustrated the bug in the former (buggy) version
of triMat().
Added an "axes" argument to plot.deldir(), defaulting to
FALSE. Made xlab and ylab default to "x" and "y" if axes
is TRUE and to "" if axes is FALSE.
Modified tile.list() (and the internal function acw() upon which
it depends) for speed-up, at the suggestion of Jean-Romain Roussel.
Registered S3 method "[.triang.list" (previously had methods
plot.deldir, plot.tile.list, plot.triang.list, [.tile.list,
divchain.default, divchain.deldir, plot.divchain and print.tileInfo
registered, but "[.triang.list" had been omitted.
Uploaded to CRAN 01/04/2018
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-14 20/03/2017
Corrected a mild infelicity in respect of the rownames
of the "summary" component of the object returned by deldir.
Made a corresponding adjustment to tile.list.R (triang.list.R
was already OK) and tidied up the help files.
Added a "..." argument to plot.tile.list() (to be passed
on to points() and/or text()).
Added function tileInfo to summarise information about tiles,
at the request of John Bothwell.
Added a facility to plot.tile.list() to append the point
*numbers* to the plot, with a reasonably minimal amount
of effort.
Added a print method to objects of class "tileInfo".
Made some corrections and amendments to the help files
tile.list.Rd and plot.tile.list.Rd.
Wrote help files for tileInfo() and print.tileInfo().
Made a minor adjustment to tileInfo(), making the "indivTiles"
component of the returned value into a *named* list (with
names of the form "tile.ptNum").
Adjusted the help file for tileInfo() accordingly.
Rewrote triMat() after a bug in it was pointed out to me
by Jay Call.
Uploaded to CRAN 22/04/2017
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-13 21/07/2016.
Corrected the rownames of the "summary" component of the
object returned by deldir(). Previously these were the indices
of the points in their bin-sorted order; when "allsum" gets
sorted back into the order of the original points the rownames
were retained, in their sorted order. This made them look
anomalous. Thanks to Pablo Araya-Melo for pointing out this
Added the function which.tile() at the request of "RAY".
Documented the function which.tile() --- !!!
problem.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-12 05/03/2016
Changed the "binsrt" procedure back to using Fortran/Ratfor
code but with the code being called directly by .Fortran(),
outside of the .Fortran() call to "master".
Adjusted the code in binsrt.r to calculate "rind" as well as
"ind".
Uploaded to CRAN 06/03/2016.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-11 04/03/2016.
Changed deldir to do "binsrt" in R code rather than Fortran/Ratfor.
Thus we now get the Fortran code to work just with the re-ordered
data as if they were the original data, and then adjust the
order after the return from the Fortran call.
Changed the code of deldir so that the data frame "dirsgs"
in the returned list has two new columns "thirdv1" and "thirdv2"
which along with "ind1" and "ind2" serve to provide unique
identifiers for the endpoints of the tile edges.
The code of deldir now explicitly recognises if the argument "x"
is of class "ppp" (i.e. is a spatstat planar point pattern) and
if "x" is marked and the marks are a vector or a factor and if "z"
is NULL, then it sets z equal to the marks.
Added function divchain() (generic), divchain.default() and
divchain.deldir() to calculate the dividing chain for a tesslation
that has been provided with a vector of categorical "weights".
Also added a plot method plot.divchain() to plot dividing chains.
Fixed the "rw" argument to accept a couple of forms other than
c(xmin,xmax,ymin,ymax). Explicitly a spatstat "owin" object and
a matrix such as determines a bounding box for a set of polygons
in the "sp" package. (Suggestion of Michael Chirico, 23,24/09/2015.)
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-10 10/03/2015.
Amended the examples in deldir.Rd to alleviate a possible point
of confusion pointed out by Samuel Ackerman.
Fixed some typos in deldir.Rd, duplicated.Rd, plot.tile.list.Rd
and plot.triang.list.Rd.
Added "point type" ("data" or "dummy") information to the lists
produced by tile.list() and triang.list(). (This information is
present only if there are dummy points specified in the call to
deldir().
Fixed a few more glitches in the documentation.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-9 09/03/2015.
Removed period from end of title in the DESCRIPTION file.
Changed NAMESPACE file to "register" S3 methods.
Removed "require("polyclip") in plot.tile.list() and
change code to use:
if(requireNamespace("polyclip",quietly=TRUE)) ....
instead.
Changed URL from http://www.stat.auckland.ac.nz to
https://www.stat.auckland.ac.nz in help files and in
the DESCRIPTION file.
The 4 foregoing changes made at the behest of Uwe Ligges.
Uploaded to CRAN 09/03/2015.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-8 09/03/2015.
Added a "[.tile.list" method so that tile lists can be
subsetted and still retain their class and "rw" attribute.
Prompted by an enquiry to R-help from Raphael Päbst, 15/01/2015.
Added a component "ind.orig" to the object returned by deldir().
This consists of the indices of the points in the original set
of (x,y) coordinates provided to the function (before any duplicated
points were removed). Prompted by an enquiry from Daniel
McCloy 29/12/14. He wanted the triangle descriptions produced
by triang.list() to show these original indices --- as the help
file claims they show --- rather than the indices in the set of
coordinates after the removal of duplicates.
Changed triang.list() to make use of the "original coordinates"
referred to above.
Revised plot.triang.list() so that it actually tries to plot
the (x,y) coordinates of the triangle vertices rather than trying
to use (ptNum,x) (!!!) as it previously did. The problem was
caused by xy.coords(tri) using the first two columns of "tri" as
the (x,y) coordinates rather than the columns named "x" and "y".
I'm ***sure*** that plot.triang.list() *used* to work, i.e. that
the columns named "x" and "y" were extracted. (If "tri" were a
list, then components named "x" and "y" would be extracted, and
since data frames are lists with components equal to the columns,
I would have expected this to work, but it doesn't. Moreover the
help for xy.coords() clearly says that it doesn't. Go figure.)
Prompted by an enquiry from Yinghui Liu, 09/03/2015.
Uploaded to CRAN 09/03/2015.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-7 26/08/2014.
Fixed bug with respect to the z "weights"; if there were duplicated
points, there was a mismatch of numbers between the z "weights"
and the unique collection of points that deldir() works with.
Fixed. Thanks to Ron Peterson for drawing this bug to my attention.
Changed the procedure for issuing a message from the initial
invocation of deldir() so that it no longer uses cat() but rather
calls message(). Requested by Bob O'Hara.
Added some material to the description of the "z" argument to deldir()
to make it clear that these weights do not affect the tessellation and
that deldir does *not* do weighted tessellation. (Prompted by an
enquiry from Garry Gelade.)
Uploaded to CRAN 26/11/2014
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-6 18/05/2014.
Corrected the ratfor code dirseg.r and dirout.r. A rarely occuring
bug was possible due to the way the code was previously written.
The code made use of the ray joining a circumcentre to the
midpoint of an edge of a Delaunay triangle. It is *possible* for
the circumcentre and that midpoint to coincide. In such a case
Fortran seemed to calculate the slope of the ray (zero over zero)
to be equal to one. The result was wrong of course and an error
with number nerror = 17 was (fortunately!) thrown. In retrospect
it is "obvious" that the ray should have been taken to join the two
circumcentres on opposite sides of the Delaunay edge. But since
these two circumcentres could conceivably coincide it is better
to take the slope of the ray to be the negative reciprocal of the
slope of the Delaunay edge. The code now uses this slope.
Thanks to Pierre Legendre for drawing this bug to my attention.
Slight adjustment to plot.tile.list.R (so that when verbose=TRUE
and showpoints=TRUE, the points get plotted "at the right time"
rather than when the *next* tile gets plotted).
Slight adjustment made to plot.tile.list.Rd
Uploaded to CRAN 03/08/2014
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-5 02/02/2014
In the help for plot.tile.list() the call to this function that
made use of the "clipp" argument has been wrapped in
if(require(polyclip)) {
...
}
so as to avoid errors when the deldir package is used by older
versions of R which do not provide the polyclip package.
(Change made at the behest of Uwe Ligges.)
Uploaded to CRAN 02/02/2014
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-4 31/01/2014
Fixed up an error in the handling of "x" and "y" coordinates
and the "z" weights as columns of a data frame. The code asked
for a third column of the data frame, and there might not be one.
Error caught by the CRAN people when the ade4 package threw an
error upon calling deldir.
Changed the protocol so that:
* the x coordinates are the column named "x" if there is one
else the first column *not* named "y" or "z"
* the y coordinates are the column named "y" if there is one
else the first column *not* named "x" or "z"
* the z weights are the column named "z" if there is one *and*
if the z argument is NULL (else the z weights are left to be
NULL.
Uploaded to CRAN 31/01/2014
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-3 28/01/2014
Fixed up references to my web page to refer to my
New Zealand web page.
Adjusted code to allow the x argument of deldir() to be
a data frame whose names do *not* necessarily include "x",
"y", and "z". In this case the x coordinates are taken to
be the first column of the data frame, the y coordinates to
be the second column, and z to be the third column if that
column exists.
Uploaded to CRAN 30/01/2014
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-2 01/10/2013.
Adjusted the behaviour of the function plot.tile.list()
when verbose=TRUE, very slightly.
Removed the use.gpclib argument to plot.tile.list()
(in accordance with the new behaviour of spatstat).
Uploaded to CRAN 01/10/2013.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.1-1 02/10/2013
Revised the function "plot.tile.list", changing the behaviour of
the colouring of tiles and added the argument "clipwin".
Request of Chris Triggs.
Added the internal function "getCol".
Added the arguments "border", "clipwin" and "warn", and eliminated
the (redundant) argument "showrect".
Added the function "tilePerim" and the internal function
"tilePerim0". Request of Haozhe Zhang.
Uploaded to CRAN 02/10/2013
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-22 17/04/2013
Fixed the dimensioning of delsgs, dirsgs, and ind in
delsegs.r and dirsegs.r. Had used a "1" as the last
dimension and this now throws a "subscript out of range"
warning from the compiler.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-21 12/10/2012
Fixed glitch w.r.t. the z-argument of deldir() --- if
"x" was a list with "x" and "y" components, and if "z"
was supplied as a separate argument, then "z" got ignored.
Added a "point number" component to the list produced for
each Delaunay triangle by triang.list().
Added the function duplicatedxy() to determine duplicated
points, to make it convenient for the user to eliminate
duplicates from a point set before calling deldir().
Done at the request of Adrian Baddeley.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-20 07/09/2012
Removed the elaborate startup message referring to changes
from previous versions of "deldir". Replaced this with
message produced by deldir() itself, the first time that
it is called in any given session. Added an argument
"suppressMsge" to deldir() allowing the user to keep this
message from appearing.
Done at the request of Adrian Baddeley.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-19 23/04/2012
Added warnings in respect of change of "summary" and "delsgs"
from matrices to data frames.
Corrected spelling of "auxiliary" in various places.
Fixed up the "see also"-s in tile.list() and plot.tile.list().
Fixed a typo in the help for plot.tile.list().
Fixed up the "see also" in the help for deldir().
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-18 21/04/2012
At the suggestion of Simon Greener, added the capacity to carry
along "auxilliary" variables or "weights" associated with the
points being triangulated.
If supplied these weights appear as a third column of the
data frames specifying the triangles in the triangulation,
as produced by the function triang.list().
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-17 03/04/2012
Added the function triMat() at the suggestion of
Robin Hankin.
Fixed a glitch in the documentation of deldir()
(in the Warning section).
Tweaked the documentation of plot.tile.list(), plot.triang.list(),
and tile.list().
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-16 04/11/2011
Fixed some minor errors in the documentation.
Added a namespace.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-15 12/08/2011
Fixed a bug in triang.list(); occasionally triangles would
appear in this list which were *not* Delaunay triangles but
rather the union of three congtiguous such triangles. This
now no longer happens.
Fixed some minor infelicities in the Fortran (ratfor) code.
Removed switch() statements from the ratfor code (and replaced
them with a sequence of if's). It appears that the ratfor
compiler that is currently available to me does not handle
switch statements properly. The resulting Fortran code
compiled and loaded but led to errors when run.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-14 22/06/2011
Put the startup messages into packageStartupMessage()
rather than catting them. At the request of Thierry Onkelinx.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-13 29/11/2010
Renamed the directory inst/ratfor.discarded inst/code.discarded
and moved the no-longer-used function ind.dup to that directory.
Added a facility to plot.deldir() to plot the enclosing rectangle "rw".
Added the same facility to plot.tile.list().
Added attribute "rw" to the object returned by tile.list() so that
the foregoing facility can work.
Added function triang.list().
Added function plot.triang.list().
Added arguments add, xlab, ylab, main, and asp to plot.tile.list().
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-12 08/01/2009
Fixed a minor glitch in the .First.lib() function. I had
a backspace coded into the message produced, and this upset
Sweave. The backspace had been put in to get things to line
up correctly. Re-arranged things (properly!) so that it is
no longer needed.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-11 09/12/2009
No change, really. A tweak that I made to the First() function
in version 0.0-10, *without* changing the version number (psigh!)
did not propagate to the Windoze and Mac OSX binaries.
So version 0.0-11 is just the same as the tweaked realization of
of version 0.0-10 but with the version number changed so that the
tweak will propagate.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-10 16/11/2009
Got rid of the call to ind.dup() which used a very rough
bit of Fortran code to detect duplicated points, and
replaced it with a call to duplicated().
(Bug pointed out by Bjarke Christensen.)
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-9 4/11/2009
Added a new function tile.centroids() --- which does the obvious.
Motivated by an inquiry from Leandro Moreira.
Added a ChangeLog
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-8 4/04/2009
Removed the labels from the x and y vectors in the tile descriptions
produced by tile.list. These labels (which were the row numbers in
the dirsgs data frame returned by deldir()) served no useful purpose
and were potentially confusing.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Versions 0.0-2 through 0.0-7 were not tracked here. :-( Simply forgot
about doing this. I thoroughly *intend* [ :-) ] to get the archives
from CRAN and try to document the changes. Recent ones involved
fixing bugs in and adding features to the tile.list() and
plot.tile.list() functions.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version 0.0-1 21/02/2002
This version is simply an adaptation of the Splus version
of the package to R.
==============================================================================
The following items relate to the Splus versions of deldir
==============================================================================
Version date: 14 February 2002.
This version supercedes the version dated 24 April 1999.
The changes from the version dated 24 April 1999 to the
version dated 14 February 2002 were:
A bug in the procedure for eliminating duplicated points was
fixed. Thanks go to Dr. Berwin Turlach of the Department of
Maths and Stats at the University of Western Australia, for
spotting this bug.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version date: 24 April 1999.
This version supercedes the version dated 26 October 1998.
The changes from the version dated 26 October 1998 to the
version dated 24 April 1999 were:
(1) The function mipd(), stored in mipd.sf, and the
corresponding Fortran subroutine mipd, stored in mipd.r, have
been replaced by mnnd() in mnnd.sf and mnnd in mnnd.r. The
function mipd calculated the mean interpoint distance, to be
used in constructing dummy point structures of a certain
type. After some reflection it became apparent that the mean
interpoint distance was much too large for the intended
purpose, and that a more appropriate value was the ``mean
nearest neighbour distance'' which is calculated by the new
function. This new value is now used in constructing dummy
point structures.
Note that the operative result is that the resulting dummy
point structures contain many more points than before. The
old value caused large numbers of the dummy points to fall
outside the data window and therefore to be clipped.
===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===
Version date: 26 October 1998.
This version supercedes the version dated 6 December 1996.
The changes from the version dated 6 December 1996 to the
version dated 26 October 1998 were:
(1) A ratfor/Fortran routine named ``inside'' has been
renamed ``dldins'' to avoid conflict with a name built in to
some versions of Splus.
(2) Some minor corrections have been made to dangerous
infelicities in a piece of the ratfor/Fortran code.
(3) The dynamic loading procedure has been changed to use
dyn.load.shared so that the package is easily usable on
IRIX systems as well as under SunOS/Solaris.
(4) The package has been adjusted slightly so that it
can easily be installed as a section of a library. In
particular, the dynamic loading is now done by the
.First.lib() function rather than from within deldir()
itself; reference to an environment variable DYN_LOAD_LIB
is no longer needed.
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