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> #  File tests/render.animation_test.R in package ndtv, part of the Statnet suite
> #  of packages for network analysis, http://statnet.org .
> #
> #  This software is distributed under the GPL-3 license.  It is free,
> #  open source, and has the attribution requirements (GPL Section 7) at
> #  http://statnet.org/attribution
> #
> #  Copyright 2003-2013 Statnet Commons
> #######################################################################
> #test some functions for calculating animated layouts and exporting movies.
> require(ndtv)
Loading required package: ndtv
Loading required package: network

'network' 1.18.2 (2023-12-04), part of the Statnet Project
* 'news(package="network")' for changes since last version
* 'citation("network")' for citation information
* 'https://statnet.org' for help, support, and other information

Loading required package: networkDynamic

'networkDynamic' 0.11.4 (2023-12-10?), part of the Statnet Project
* 'news(package="networkDynamic")' for changes since last version
* 'citation("networkDynamic")' for citation information
* 'https://statnet.org' for help, support, and other information

Loading required package: animation
Loading required package: sna
Loading required package: statnet.common

Attaching package: 'statnet.common'

The following objects are masked from 'package:base':

    attr, order

sna: Tools for Social Network Analysis
Version 2.7-2 created on 2023-12-05.
copyright (c) 2005, Carter T. Butts, University of California-Irvine
 For citation information, type citation("sna").
 Type help(package="sna") to get started.


'ndtv' 0.13.4 (2024-06-30), part of the Statnet Project
* 'news(package="ndtv")' for changes since last version
* 'citation("ndtv")' for citation information
* 'https://statnet.org' for help, support, and other information

> require(testthat)
Loading required package: testthat
> 
> # hard to write tests since most require a human looking at the output
> # most overall tests are included as man examples or in the packae vignette
> # this file should be mostly unit tests for functionality
> data(newcomb)
> dynNew <- networkDynamic(network.list=newcomb[1:5])
Neither start or onsets specified, assuming start=0
Onsets and termini not specified, assuming each network in network.list should have a discrete spell of length 1
Argument base.net not specified, using first element of network.list instead
Created net.obs.period to describe network
 Network observation period info:
  Number of observation spells: 1 
  Maximal time range observed: 0 until 5 
  Temporal mode: discrete 
  Time unit: step 
  Suggested time increment: 1 
> 
> #----- render animation ------
> # does it crash on basic example
> # shorten time range so wont dake as long
> dyn<-network.extract(dynNew,onset=0,terminus=3,trim.spells=TRUE) 
> render.animation(dyn,verbose=FALSE)
> 
> # does replay work 
> ani.replay()
> 
> # can it run and record plots without creating alist of animations
> saveVideo(render.animation(dyn,verbose=FALSE,render.cache='none'))
Error in system(paste(ffmpeg, "-version"), intern = TRUE) : 
  '"ffmpeg"' not found
NULL
Warning message:
In saveVideo(render.animation(dyn, verbose = FALSE, render.cache = "none")) :
  The command ""ffmpeg"" is not available in your system. Please install FFmpeg or avconv first: http://ffmpeg.org/download.html
> 
> 
> # does increasing tween produce different results
> 
> # does show.time crash if changed from default
> render.par<-list(tween.frames=2,show.time=FALSE)
> render.animation(dyn,render.par=render.par,verbose=FALSE)
> 
> # does show.stats crashed if changed from default
> render.par<-list(tween.frames=2,show.time=TRUE,show.stats=FALSE)
> render.animation(dyn,render.par=render.par,verbose=FALSE)
> 
> # can it render arbitrary plotting comands?
> render.par=list(tween.frames=2,show.time=TRUE,show.stats=NULL,extraPlotCmds=expression(text(0,0,"SOME TEXT ON THE PLOT",col='blue')))
> render.animation(dyn,render.par=render.par,verbose=FALSE)
> 
> # test workaround for 0-coord label bug #322
> test<-network.initialize(2)
> activate.vertex.attribute(test,'x',0,onset=0,terminus=2)
> activate.vertex.attribute(test,'y',0,onset=0,terminus=2)
> compute.animation(test, animation.mode='useAttribute',layout.par = list(x = "x", y = "y"),slice.par=list(start=0,end=1,interval=1,aggregate.dur=0,rule='latest'))
Calculating layout for network slice from time  0 to 0
Calculating layout for network slice from time  1 to 1
> render.animation(test,displaylabels=TRUE)
rendering 10 frames for slice 0
rendering 10 frames for slice 1
> 
> # try labels moving on edges, but only 5 edges
> set.edge.attribute(dyn,"eLabel",1:network.edgecount(dyn))
> render.par=list(tween.frames=10,show.time=TRUE,show.stats=NULL)
> render.animation(dyn,render.par=render.par,verbose=FALSE,edge.col='gray',edge.label='eLabel',edge.label.cex=0.7,edge.label.col='blue')
> 
> # single vertex matrix collapse bug #332
> compute.animation(as.networkDynamic(network.initialize(1)))
No slice.par found, using
slice parameters:
  start:0
  end:0
  interval:1
  aggregate.dur:1
  rule:latest

Calculating layout for network slice from time  0 to 1
Warning message:
In guessSlicePar(net) :
  network does not appear to have any dynamic information. Using start=0 end=1
> 
> # test animation of single vertex
> test<-network.initialize(3)
> deactivate.vertices(test)
> activate.vertices(test,v=2,onset=0,terminus=3)
> compute.animation(test)
No slice.par found, using
slice parameters:
  start:0
  end:3
  interval:1
  aggregate.dur:1
  rule:latest

Calculating layout for network slice from time  0 to 1
Calculating layout for network slice from time  1 to 2
Calculating layout for network slice from time  2 to 3
Calculating layout for network slice from time  3 to 4
> render.animation(test)
rendering 10 frames for slice 0
rendering 10 frames for slice 1
rendering 10 frames for slice 2
rendering 10 frames for slice 3
> 
> # test specifying xlim and ylim
> render.animation(test,xlim=c(-1,1),ylim=c(-1,1))
rendering 10 frames for slice 0
rendering 10 frames for slice 1
rendering 10 frames for slice 2
rendering 10 frames for slice 3
> 
> proc.time()
   user  system elapsed 
   2.67    0.37    3.04