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Smart Target
consists in creating a series of constraints on-the-fly, thereby reducing
the degrees of freedom of the components. |
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While creating or editing a track, a simulation or a shuttle, it is
useful to be able to catch an entity precisely. It can also be useful
to accumulate several targets. Using a historical target (keeping track of
cumulative constraints) can help to put some elements in a specific
position. |
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For instance, the scenario below aims at showing you the interest of
this capability:
- you want to move P2 in P1, using the smart target, we can create a
first coincidence constraint between the two planes referred to as PL2
and PL1
- then, we add a second coincidence constraint between the two axis
AX2.1 and AX1.1
- finally we add a third coincidence constraint between the two axis
AX2.2 and AX1.2
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This task shows you how to use Smart Target in a track
recording scenario. |
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Open the
SMART_TARGET.CATProduct document. |
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Select Disk.1 either in the specification tree or in the
geometry area.
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Click Track
from the DMU Simulation toolbar.
You are ready to record your track: select the part to move. |
In our example, select Disk.1 either in the specification tree or
on the geometry. |
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The Player and Manipulation pop-up toolbar
appears. |
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Click Smart Target
from the Manipulation toolbar.
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From the list, select the type of geometry you need
(default = Any geometry).
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Select a geometric element (a point, line, or plane) on
the same to-be-moved component, e.g. a circle of which the center is the
center of the entire Disk cylinder in the sample product.
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Double-click Record (Insert)
in the Recorder toolbar to activate the automatic insert mode.
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Select the Rim cylinder axis as shown below.
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The first coincidence constraint is created. The Disk cylinder is
displaced in accordance with the first constraint. |
You can continue directly to the creation of the second
constraint. |
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Select the Invert the snap direction by rotation
button to position the Disk.
The Disk is automatically inverted. |
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Select a geometric element on the to-be-moved component,
e.g. the axis passing through one of the nuts of the Disk cylinder.
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Select a geometric element on the receiving
component, e.g. the axe passing through one of the nut holes of the Rim
cylinder.
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The second constraint is created. The Disk cylinder is displaced
in accordance with the second constraint. |
You can continue directly to the creation of the third
constraint. |
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Select the plane of the Disk cylinder containing the
nuts.
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Select the plane of the Rim cylinder containing the nut
holes.
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The third constraint is created. |
The two components have been placed together as a function of the
three constraints. |
This is what you obtain. |
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The track is created, you can replay it. |
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Click Smart Target
to exit the command.
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Smart Target
recognizes the following geometric features. Except where noted, the
features can be selected on either the 3D geometry or the specification
tree.
Geometric Features |
Design mode |
Visualization mode |
Cylinder axis |
Y |
Y |
Surfaces
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Y |
Y |
Edge:
Extremities
Any point (Ctrl key) |
Y |
Y |
Camera (eye) |
Y |
Y |
Construction lines
Construction axis |
Y |
Y |
V4 axis system |
Y |
Y |
V5 axis system
(Only selectable on the specification tree) |
Y |
Y |
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Two constraints can be opposite and thus become a limitation for the
use of Smart Target
. |