1 files changed, 142 insertions, 0 deletions
diff --git a/ds9/library/nrrd.tcl b/ds9/library/nrrd.tcl
new file mode 100644
index 0000000..cae05bc
--- /dev/null
+++ b/ds9/library/nrrd.tcl
@@ -0,0 +1,142 @@
+#  Copyright (C) 1999-2016
+#  Smithsonian Astrophysical Observatory, Cambridge, MA, USA
+#  For conditions of distribution and use, see copyright notice in "copyright"
+
+package provide DS9 1.0
+
+proc ImportNRRDFile {fn layer} {
+    global loadParam
+
+    set loadParam(file,type) nrrd
+    set loadParam(file,mode) {}
+    set loadParam(load,layer) $layer
+
+    # find stdin
+    if {[string range $fn 0 4] == "stdin" || 
+	[string range $fn 0 4] == "STDIN" ||
+	[string range $fn 0 0] == "-"} {
+	set loadParam(load,type) alloc
+	set loadParam(file,name) stdin
+	set loadParam(file,fn) $loadParam(file,name)
+    } else {
+	set loadParam(load,type) mmap
+	set loadParam(file,name) $fn
+    }
+
+    ProcessLoad
+}
+
+proc ImportNRRDAlloc {path fn layer} {
+    global loadParam
+
+    set loadParam(file,type) nrrd
+    set loadParam(file,mode) {}
+    set loadParam(load,type) alloc
+    set loadParam(file,name) $fn
+    set loadParam(file,fn) $path
+    set loadParam(load,layer) $layer
+
+    ProcessLoad
+}
+
+proc ImportNRRDSocket {sock fn layer} {
+    global loadParam
+
+    set loadParam(file,type) nrrd
+    set loadParam(file,mode) {}
+    set loadParam(load,type) socket
+    set loadParam(file,name) $fn
+    set loadParam(socket,id) $sock
+    set loadParam(load,layer) $layer
+
+    return [ProcessLoad 0]
+}
+
+proc ExportNRRDFile {fn opt} {
+    global current
+
+    if {$fn == {} || $current(frame) == {}} {
+	return
+    }
+
+    if {![$current(frame) has fits]} {
+	return
+    }
+
+    $current(frame) save nrrd file "\{$fn\}" $opt
+}
+
+proc ExportNRRDSocket {sock opt} {
+    global current
+
+    if {$current(frame) == {}} {
+	return
+    }
+
+    if {![$current(frame) has fits]} {
+	return
+    }
+
+    $current(frame) save nrrd socket $sock $opt
+}
+
+proc ProcessNRRDCmd {varname iname sock fn} {
+    upvar $varname var
+    upvar $iname i
+
+    global loadParam
+    global current
+
+    set layer {}
+
+    switch -- [string tolower [lindex $var $i]] {
+	new {
+	    incr i
+	    CreateFrame
+	}
+	mask {
+	    incr i
+	    set layer mask
+	}
+	slice {
+	    incr i
+	    # not supported
+	}
+    }
+    set param [lindex $var $i]
+
+    StartLoad
+    if {$sock != {}} {
+	# xpa
+	if {![ImportNRRDSocket $sock $param $layer]} {
+	    InitError xpa
+	    ImportNRRDFile $param $layer
+	}
+    } else {
+	# comm
+	if {$fn != {}} {
+	    ImportNRRDAlloc $fn $param $layer
+	} else {
+	    ImportNRRDFile $param $layer
+	}
+    }
+    FinishLoad
+}
+
+proc ProcessSendNRRDCmd {proc id param sock fn} {
+    global current
+
+    if {$current(frame) == {}} {
+	return
+    }
+
+    set opt [string tolower [lindex $param 0]]
+    if {$sock != {}} {
+	# xpa
+	ExportNRRDSocket $sock $opt
+    } elseif {$fn != {}} {
+	# comm
+	ExportNRRDFile $fn $opt
+	$proc $id {} $fn
+    }
+}