add macros from scicos_blocks from scilab 5.5.2

1 files changed, 80 insertions, 0 deletions

diff --git a/macros/Linear/VARIABLE_DELAY.sci b/macros/Linear/VARIABLE_DELAY.sci
new file mode 100644
index 00000000..c8055352
--- /dev/null
+++ b/macros/Linear/VARIABLE_DELAY.sci
@@ -0,0 +1,80 @@
+//  Scicos
+//
+//  Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+// See the file ../license.txt
+//
+
+function [x,y,typ]=VARIABLE_DELAY(job,arg1,arg2)
+    x=[];
+    y=[];
+    typ=[];
+    select job
+    case "set" then
+        x=arg1;
+        graphics=arg1.graphics;
+        exprs=graphics.exprs
+        model=arg1.model;nin=model.in(1)
+
+        while %t do
+            [ok,T,init,N,exprs]=scicos_getvalue("Set delay parameters",..
+            ["Max delay";"initial input";"Buffer size"],..
+            list("vec",1,"vec",1,"vec",1),..
+            exprs);
+            if ~ok then
+                break,
+            end
+            if N<2 then
+                message("Buffer must be larger than 2")
+                ok=%f
+            end
+            if T<=0 then
+                message("Delay must be positive")
+                ok=%f
+            end
+
+            if ok then
+                [model,graphics,ok]=check_io(model,graphics,[-1;1],-1,[],[])
+            end
+            if ok then
+                graphics.exprs=exprs;
+                model.rpar=[T;init];
+                model.ipar=N
+                x.graphics=graphics;
+                x.model=model
+                break
+            end
+        end
+    case "define" then
+        nin=1
+        T=1
+        init=0
+        N=1024
+        model=scicos_model()
+        model.sim=list("variable_delay",4)
+        model.in=[nin;1]
+        model.out=nin
+        model.rpar=[T,init];
+        model.ipar=N
+        model.blocktype="d"
+        model.dep_ut=[%f %f]
+
+        exprs=[string(T);string(init);string(N)];
+        gr_i=[]
+        x=standard_define([3 2],model,exprs,gr_i)
+    end
+endfunction