Displays
information about the network, allows inspection of curve segments
and sculpt curves, and recommends fixes for problems with continuity.
Show network information
- Choose CrvNet Tools > Analyze Network .
The Analyze
network tool displays information about components of
the current curve network.
- Press and hold on a curve segment or
sculpt curve to show more information, including a recommendation
on how to edit the network if continuity could not be achieved.
Analysis
The Analyze
network tool labels the curve network with the following
information:
Network component |
Indicated by |
Intersections |
Red dots |
Continuity type for each curve segment |
Label at the midpoint of the curve segment (Pos or Tan).
|
Curve segments with at least one adjacent surface |
White lines |
Curve segments with no adjacent surfaces |
Green lines |
Sculpt curves |
Red lines |
Pinned curve segments |
Pin icon |
NoteIf
the tool fails to build a surface in a valid closed region of the
network, the edges are displayed in red. When this happens, query
the edge (see below) to obtain more information about the probable
cause of the failure.
The Analyze
network tool also lets you select curve segments and
sculpt curves to get specific information:
Information |
Description |
Curve Type |
Network or Sculpt.
|
Region of Influence(for sculpt
curves)
|
Large, Medium,
or Small.
|
Nature |
Pinned or Free.Whether or
not the surface is pinned to the curve segment.
|
Edge Type |
Interior: the curve segment
is inside the network (the surfaces are on both sides of the segment).Boundary:
the curve segment is on the edge of the network (the surfaces are
only on one side of the segment).Orphan: the
curve segment is not connected to any surface at all.
|
Continuity |
Achieved or Not achieved.If
continuity was not achieved, the Analyze network tool
will give a recommended action.
|
Recommended Action(for curve
segments where continuity was not achieved)
|
A recommendation for how to modify the network so that
the curve network can achieve the requested continuity.
|
If the curve network
could not achieve the requested continuity at a particular curve
segment, the Analyze network tool will recommend a
course of action to fix the problem and achieve the requested level
of continuity:
NoteThe
Recommended Action is only an educated guess. In many cases it is
impossible to pinpoint the exact reason why continuity could not
be achieved.
“Recommended Action” |
Possible Cause |
Suggestions |
End point(s) belong to degenerate surface(s) |
One or more of the surfaces meeting at one of the intersections
that define the curve segment is a degenerate surface.
|
The intersection causing the problem is indicated with
an arrow.Try to redefine the network with curves that do not require degenerate
surfaces.
|
Check network topology at end point(s) |
One of the intersections that defines the curve segment
may be part of a region with more than four sides.
|
The intersection causing the problem is indicated with
an arrow.Try to redefine the network with curves that do not require non-rectangular
surfaces.
|
Conflicting surfaces incident at endpoint(s) |
There may be a conflict between the normals or curvatures
of the surfaces (outside the network) which meet at this intersection.
|
The intersection causing the problem is indicated with
an arrow.Check the alignment of the surfaces at the endpoint of
the curve segment, and reshape to provide required continuity.
|
Problem curve at endpoint(s) |
One or both of the curves intersecting this curve segment
do not have sufficient curvature quality.
|
The intersection causing the problem is indicated with
an arrow.Use the Curve curvature measurement
tool to check the curvature of the intersecting curves.
|
Align curves at edge end(s) |
The curves intersecting this curve segment are badly
misaligned.
|
Check the alignment of both pairs of curve segments. |
Smooth curve incident at ends |
One or both of the curves intersecting this curve segment
have some kind of quality problem.
|
Turn on display of edit points and look for bunched up
edit points on the intersecting curves.Use the Curve curvature measurement
tool to check the curvature of the intersecting curves.Use the Smooth tool
to smooth the intersecting curves.
|
Check edge curve for problems |
The curves that this curve segment belongs to has some
kind of quality problem.
|
Turn on display of edit points and look for bunched up
edit points.Use the Curve curvature measurement
tool to check the curve’s curvature.Use the Smooth tool
to smooth the curve.
|
Check knot spacing on edge curve |
The curve that this curve segment belongs to may have
“bunched up” edit points or multi-knots.
|
Edit or rebuild the curve to spread out the edit points. |
Simplify triangle curves |
The curves defining a triangular region are too complex.
|
Use the Rebuild curve tool to reduce
the number of edit points in the curves.Use the smooth tool to remove
sharp bends in the curves.
|