removing gfx from getstarted

Author: soumith

1_getstarted/getstarted.lua

@@ -4,30 +4,9 @@
 -- This script demonstrates very basic Lua/Torch stuff.
 
 -- To run this script, simply do:
--- torch getstarted.lua
--- and then press 'y' or 'return' at each step, to keep going, or 'n'
--- to terminate.
-
-require 'gfx.js'
-
-----------------------------------------------------------------------
--- little function to pause execution, and request user input
-function next()
-   local answer = nil
-   while answer ~= '' and answer ~= 'y' and answer ~= 'Y' and neverstall ~= true do
-      io.write("continue ([y]/n/!)? ")
-      io.flush()
-      answer=io.read()
-      if answer == '!' then
-         neverstall = true
-      end
-      if answer == 'n' then
-         print('exiting...')
-         os.exit()
-      end
-   end
-   print ''
-end
+-- th getstarted.lua
+-- To run the script from itorch, in a notebook do:
+-- dofile 'getstarted.lua'
 
 ----------------------------------------------------------------------
 -- snippet 1
@@ -37,24 +16,32 @@ print(a)
 print 'something'
 print(type(a))
 print(type('something'))
-next()
 
 ----------------------------------------------------------------------
--- snippet 3
+-- snippet 2
 require 'image'
 i = image.lena()
-gfx.image(i)
-next()
+if itorch then
+   itorch.image(i)
+else
+   print('skipping visualization because the script is not run from itorch')
+end
 
 ----------------------------------------------------------------------
 -- snippet 4
 require 'nn'
 n = nn.SpatialConvolution(1,16,12,12)
-gfx.image(n.weight, {zoom=2, legend=''})
-next()
+if itorch then
+   itorch.image(n.weight)
+else
+   print('skipping visualization because the script is not run from itorch')
+end
 
 ----------------------------------------------------------------------
 -- snippet 5
 res = n:forward(image.rgb2y(i))
-gfx.image(res, {zoom=0.25, legend='states'})
-next()
+if itorch then
+   itorch.image(res)
+else
+   print('skipping visualization because the script is not run from itorch')
+end