ImageFilterChains.markdown

@@ -692,6 +692,7 @@ When rendering the filter chain the position and dimensions of the source and de
 This partial ruby code snippet demonstrates how to use equations and apply variables in the rendering filter chain command:
 
 ```ruby
+theCommands = SmigCommands.new
 filterchain_object = SmigIDHash.make_objectid(objecttype: :imagefilterchain,
 									objectname: 'documentation.imagefilterchain.emboss')
 filterchain_render = MIFilterChainRender.new
@@ -707,9 +708,10 @@ filterchain_render.add_filterproperty(crop_property)
 the_variables = { bumpvalue: Random.rand, leftedge: Random.rand * 100.0,
 				  bottomedge: Random.rand * 100.0, width: Random.rand * 200.0,
 				  height: Random.rand * 150.0 }
-filterchain_render.variables = the_variables
 render_filterchain_command = CommandModule.make_renderfilterchain(filterchain_object,
 												renderinstructions: filterchain_render)
+theCommands.add_command(render_filterchain_command)
+theCommands.variables = the_variables
 puts JSON.pretty_generate(render_filterchain_command.commandhash)
 
 ```