\unshift

Description 

\unshift is used to cancel some 3D visual effects previously set by the operator \shift (cf. §). It has two syntaxic forms whether one wants a global application or not:

• without any parameter. All vertices contained in the Doodle database is updated to remove its shifting values.
• with a list of vertex names list. Only those points will be affected and their shifting values will be reset.

The second form (explicit vertex targeting) could be replaced by a sequence of operator \shift(..., 0, 0) which is another way to reset the shifting values.

Usage

  \unshift; % All points previously defined are affected
  \unshift(c, ab2); % only c and ab2 are reseted

Formal structure

  \unshift;
  \unshift(VERTICES_LIST);

Parameters

  VERTICES_LIST  : All vertices to reset.
  Type           : List of vertex symbols.
  Allowed values : Any sequence of vertex identifiers already 
                   defined in previous steps.