Fixed xform parser; added more template options

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: threeBrain
 Type: Package
 Title: 3D Brain Visualization
-Version: 0.2.4.9002
+Version: 0.2.4.9003
 Authors@R: c(
     person("Zhengjia", "Wang", email = "[email protected]", role = c("aut", "cre", "cph")),
     person("John", "Magnotti", email = "[email protected]", role = c("aut")),
@@ -33,6 +33,7 @@ Language: en-US
 URL: https://dipterix.org/threeBrain/ https://github.com/dipterix/threeBrain
 BugReports: https://github.com/dipterix/threeBrain/issues
 Imports:
+    utils,
     grDevices,
     graphics,
     dipsaus,

NAMESPACE

@@ -22,6 +22,7 @@ export(GeomGroup)
 export(SphereGeom)
 export(TubeGeom)
 export(add_voxel_cube)
+export(available_templates)
 export(brain_proxy)
 export(brain_setup)
 export(check_freesurfer_path)

R/fs_brain.R

@@ -123,7 +123,7 @@ freesurfer_brain <- function(fs_subject_folder, subject_name,
   has_volume <- FALSE
   if( file.exists(path_xform) ){
     ss <- readLines(path_xform)
-    ss <- stringr::str_match(ss, '^([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+)[;]{0,1}$')
+    ss <- stringr::str_match(ss, '^([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+)[;]{0,1}[ ]{0,}$')
     ss <- ss[!is.na(ss[,1]), -1, drop = FALSE]
     if( nrow(ss) >= 3 ){
       ss <- ss[1:3,1:4]

R/fs_import-xform.R

@@ -10,7 +10,7 @@ import_fs.xform <- function(subject_name, fs_path, quiet = FALSE, dtype, sub_typ
   xfm <- diag(c(1,1,1,1))
   if( file.exists(path_xform) ){
     ss <- readLines(path_xform)
-    ss <- stringr::str_match(ss, '^([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+)[;]{0,1}$')
+    ss <- stringr::str_match(ss, '^([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+) ([-]{0,1}[0-9.]+)[;]{0,1}[ ]{0,}$')
     ss <- ss[!is.na(ss[,1]), -1, drop = FALSE]
     if( nrow(ss) >= 3 ){
       ss <- ss[1:3,1:4]

R/loaders.R

@@ -179,3 +179,49 @@ threebrain_finalize_installation <- function(upgrade = c('ask', 'always', 'never
   return(invisible())
 }
 
+
+#' @rdname template_subject
+#' @export
+available_templates <- function() {
+
+  url <- "https://api.github.com/repos/dipterix/threeBrain-sample/releases"
+  tf <- tempfile()
+  on.exit({
+    if(file.exists(tf)) {
+      unlink(tf)
+    }
+  })
+
+  res <- tryCatch({
+    utils::download.file(url, destfile = tf, quiet = TRUE)
+    res <- jsonlite::read_json(tf)[[1]]
+    res <- lapply(res$assets, function(asset){
+      list(
+        subject_name = gsub("\\..*", "", asset$name),
+        download_url = asset$browser_download_url
+      )
+    })
+
+    scodes <- vapply(res, FUN = '[[', FUN.VALUE = "", 'subject_name')
+    urls <- lapply(res, FUN = '[[', 'download_url')
+
+    names(urls) <- scodes
+    urls
+
+  }, error = function(e){
+    # As of 2022-05-09
+    list(
+      bert = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/bert.zip",
+      cvs_avg35 = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/cvs_avg35.zip",
+      cvs_avg35_inMNI152 = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/cvs_avg35_inMNI152.zip",
+      fsaverage = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/fsaverage.zip",
+      fsaverage_sym = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/fsaverage_sym.zip",
+      `N27-complete` = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/N27-complete.zip",
+      N27 = "https://github.com/dipterix/threeBrain-sample/releases/download/1.0.0/N27.zip"
+    )
+  })
+
+  return(res)
+}
+
+