catia马鞍曲面教程.ppt

Reverse Engineeringsurface reconstruction
Consumer goods division
CATIA Demonstration Script
Version 5 Release 11March 2003
c511-demSelle-script
Page 1
Setting the environment
Setting the environment
Open the starting part:
File/Open
Select file: 00Saddle-start
Enter a DSE workbench
Start/Digitized Shape Editor
2
Setting the environment
Choose the current open body
Right-click
Select Define In Work Object
3
Step 1 : prepare digitized data
Step 1: prepare digitized data
Import cloud
Import
Choose format cgo
Select file: 00Saddle-
Apply
OK
Time saver: you can also recall the stl file to skip filtering and tesselation phases. In this case skip next page of the script.
4
Filter the cloud of points
Filter
Select the cloud
Choose Adaptative
Chord value =
Apply
OK
Tesselate the cloud
Tesselate
Select the cloud
Activate 3D Mesher
Deactivate Sag
Deactivate Neighborhood
Activate Shading
Deactivate triangles
Apply
OK
Step 1 : prepare digitized data
5
Step 1 : prepare digitized data
Hide the imported cloud
Create the middle section of the cloud
Planar section
Select the cloud
Number = 1
Direction = XZ
Drag the green manipulator to move the plane
Right-click the manipulator to access Edit menu
Enter Y = 0 and Close
Apply
OK
6
Step 1 : prepare digitized data
Keep half of the symmetric part
Top view
Activate
Mode : trap
Type : rectangular
Select the cloud
Select 2 points as shown
OK
7
Step 2 : create curves
Step 2 : create curves
Open a QSR workbench
Start/Shape/Quick Surface Reconstruction
Visualize a character line
segmentation by slope criterion
Select the cloud
Select direction YZ
OK
8
Step 2 : create curves
Create a planar section on character line
Planar section
Select cloud
Direction = YZ
Drag section to position of character line
Apply
OK
Delete the character line
9
Step 2 : create curves
Left view
Change privileged plane
Right-click pass
Make XZ the privileged plane
Create a curve in XZ plane
3D curve