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This task explains how to apply isophotes on a surface.
Isophotes are variable black stripes applied to the selected surface which
is considered as reflective, and used for analysis purposes. It is a tool
for the analysis of the element state. |
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- OpenGL shader technology can be used with this functionality, please
refer to the Infrastructure Installation Guide documentation
for more details on software & hardware prerequisites: Software
Requirements. See Performance setting.
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- The different mapping analyses of the same surfaces cannot be
displayed simultaneously, even if you have set the mapping analyzes in no
show. You need to visualize them one after the other.
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Open the
FreeStyle_Part_25.CATPart document:
- The discretization option should be set to a maximum (in
Infrastructure User's Guide, see Performance: the 3D Accuracy >
Fixed option should be set to 0.01 and the Curves' accuracy
ratio option should be set to 0.10s).
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Click Isophotes Mapping Analysis
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The Isophote Mapping Analysis dialog box is
displayed.
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The Isophote Mapping Analysis dialog box
displays the following information:
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Select Sphere.1
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The analysis results depend of the current
object. May you want to change the scope of analysis, use the Define
in Work object contextual command. |
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Select the Cylindrical mode mapping type:

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Isophotes are applied on Sphere.1. |
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Select the Global option:

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Isophotes are displayed on all the part. It is
advised to use the Global mode for a global selection rather
than using a trap. |
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Select the Plane option:

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The mapping analysis directions are normal to
the screen plane. Compare with the image above where the mapping analysis
directions are defined from the center of the screen plane. |
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Select the Compass option:

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Manipulate the compass to modify the isophotes
orientation.
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Isophotes mapping is modified accordingly to the
isophotes orientation. |
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Manipulate the view orientation with the mouse modify the
isophotes and surfaces orientation.
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Isophotes mapping is modified accordingly to the
new point of view. |
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Select the Eye option:
, note that the
Point option
is automatically
selected.
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The Eye User manipulator appears
and it allows you to define another point of view independently from the
screen point of view.
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You can move the Eye User along its
axis or by selecting its center: isophotes mapping is modified
accordingly to the Eye User orientation.
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Right-click the Eye User .
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A contextual menu is displayed: |
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Select Edit from the contextual menu.
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The Tuner dialog box appears: |
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In this dialog box you can set:
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Relative: defines whether the
Eye User location is defined according to the relative origin.
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Position: defines the Eye User
location coordinates according to the Relative option
cleared:
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X: defines the X coordinates.
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Y: defines the Y coordinates.
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Z: defines the Z coordinates.
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Step: defines the step when you
move the Eye User.
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Select Relative option in the Tuner
dialog box.
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The relative origin of the Eye User
is displayed. |
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The Tuner dialog box is modified: |
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In this dialog box you can set:
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Click Close in the Tuner dialog
box.
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Increase the number of stripes using sliders
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Number of stripes increases, the cylindrical
mapping is modified accordingly: |
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Decrease the width of stripes using sliders
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Width of stripes is modified. |
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Increase the Color transition using sliders
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Color transition is modified. |
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Click OK when you have finished the analysis.
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The analysis (identified as Isophotes Mapping
Analysis.x) is added to the specification tree under the Free Form Analysis
node. |
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