param_list=canvas_interface->generate_param_list(value_desc);
param_list.add("origin",location);
if(value_desc.get_value_type()==ValueBase::TYPE_BLINEPOINT && value_desc.is_value_node() && ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
{
param_list2=canvas_interface->generate_param_list(
param_list=canvas_interface->generate_param_list(value_desc);
param_list.add("origin",location);
if(value_desc.get_value_type()==ValueBase::TYPE_BLINEPOINT && value_desc.is_value_node() && ValueNode_Composite::Handle::cast_dynamic(value_desc.get_value_node()))
{
param_list2=canvas_interface->generate_param_list(