{"action":"created","issue":{"url":"https://api.github.com/repos/ros/xacro/issues/52","labels_url":"https://api.github.com/repos/ros/xacro/issues/52/labels{/name}","comments_url":"https://api.github.com/repos/ros/xacro/issues/52/comments","events_url":"https://api.github.com/repos/ros/xacro/issues/52/events","html_url":"https://github.com/ros/xacro/issues/52","id":59764387,"number":52,"title":"Usage of block parameter","user":{"login":"130s","id":1840401,"avatar_url":"https://avatars.githubusercontent.com/u/1840401?v=3","gravatar_id":"","url":"https://api.github.com/users/130s","html_url":"https://github.com/130s","followers_url":"https://api.github.com/users/130s/followers","following_url":"https://api.github.com/users/130s/following{/other_user}","gists_url":"https://api.github.com/users/130s/gists{/gist_id}","starred_url":"https://api.github.com/users/130s/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/130s/subscriptions","organizations_url":"https://api.github.com/users/130s/orgs","repos_url":"https://api.github.com/users/130s/repos","events_url":"https://api.github.com/users/130s/events{/privacy}","received_events_url":"https://api.github.com/users/130s/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2015-03-04T08:19:46Z","updated_at":"2015-03-17T16:40:57Z","closed_at":null,"body":"I made [a change on urdf-xacro tutorial](http://wiki.ros.org/action/info/urdf/Tutorials/Using%20Xacro%20to%20Clean%20Up%20a%20URDF%20File?action=diff&rev2=13&rev1=12) about `block parameter`, but I'm not confident if this is right. Should it be wrong someone please correct that."},"comment":{"url":"https://api.github.com/repos/ros/xacro/issues/comments/82462898","html_url":"https://github.com/ros/xacro/issues/52#issuecomment-82462898","issue_url":"https://api.github.com/repos/ros/xacro/issues/52","id":82462898,"user":{"login":"DLu","id":1016143,"avatar_url":"https://avatars.githubusercontent.com/u/1016143?v=3","gravatar_id":"","url":"https://api.github.com/users/DLu","html_url":"https://github.com/DLu","followers_url":"https://api.github.com/users/DLu/followers","following_url":"https://api.github.com/users/DLu/following{/other_user}","gists_url":"https://api.github.com/users/DLu/gists{/gist_id}","starred_url":"https://api.github.com/users/DLu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DLu/subscriptions","organizations_url":"https://api.github.com/users/DLu/orgs","repos_url":"https://api.github.com/users/DLu/repos","events_url":"https://api.github.com/users/DLu/events{/privacy}","received_events_url":"https://api.github.com/users/DLu/received_events","type":"User","site_admin":false},"created_at":"2015-03-17T16:40:57Z","updated_at":"2015-03-17T16:40:57Z","body":"The idea is that shape can represent any kind of block element. `shape` is just the name of the parameter. The macro takes whatever block is defined in the macro (`<cylinder radius=\".42\" length=\".01\" />`) and inserts it where it says `insert_block`. "}}