Mechanism drawing animation :
We present to you some movies
obtained as a result of the application of a special technology for the
animation of drawings.
You can watch the following movies:
The technology of mechanism
drawing animation
The drawing which has been animated is
a standard designer assembly drawing of a mechanism prepared in AutoCAD,
normally for other purposes (as a rule it a part of the designer's
documentation). The core of the technology is a special software product ParaDis
in the AutoCAD environment developed by the "Progma" company. This product
allows the automatic transformation of any drawing with the purpose of
satisfying dimensions prescribed by the user. The geometric configuration of the
drawing is preserved in the process.
The work of animation consists of the
following stages:
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1) Distinguishing "rigid" bodies.
The designer distinguishes separate
parts of the mechanism on the original drawing. These parts behave a "rigid
bodies" during the course of work. Such parts can only move and rotate as a
single entity. The distinguishing such parts is effected by declaring the
collection of all geometric primitives that form the relevant part to be a block
of AutoCAD.
-
2) Nomination of control dimension(s).
A control dimension is prescribed (or if
necessary, several such dimensions) using standard AutoCAD means. The text in
the dimension label should be a formula containing the control parameters. In
particular, the whole text can consist of one letter (the name of the
dimension).
-
3) Obtaining frames of the movie.
Giving various values to the parameters
in the formula for control dimensions and using the ParaDis program, we obtain
all the frames of the movie as separate precise drawings.