The procedures
to measure distance between 2 points and measuring the arc lengths
are explained here.
Users can
measure the following:

Linear
Measurement
 Point to
Point
 Point to
Edge
 Point to
Face

Arc
Measurement

Snap Vertex

Vertex Info
Linear Measurement
 Point to Point :
Measures distance between two user picked points.
 Point to Edge:
Measures shortest distance between point and the edge picked by
user.
 Point to Face:
Measures shortest distance between point and triangle picked by
user.
Mouse right click Context Menu
Distance 
Allows user
to measure shortest distance between two points in the
model. 
Arc 
Allows user
to measure circular arc with its length, included angle
and radius. 
Point To Edge 
Allows user to measure
shortest distance between a point and an edge. 
Point To Face 
Allows user to measure
shortest distance between a point and a polygon. 
Snap Vertex 
Allows user
to pick nearest vertices of model for measurement. 
Vertex Info 
Displays
current mouse cursor hit position on the model with its
x,y and z coordinates. 
Compare Mesh 
Helps user
to compare two meshes by finding its deviation against
each other. Deviation vector will be added to source
model as CAE vector result. 
Linear
Measurement
Point to Point
Click with
the right most button in the Viewer Window, to pop up the Viewer
Context menu and then follow the instructions as below.
 Select 'Measure  Distance'
option from the Viewer context Menu or click ICON
from
toolbar.
 Click 2 points of interest on
the model to measure the distance.
 The points clicked are
highlighted in red color and a line is drawn between the end
points.
 An annotated label with distance
value is attached to the middle point of line drawn.
Point to Edge

Click 'Measure 
Point to Edge' option in the context menu.

Click a point on a model and
click on a model for closest triangle edge.

The point and the closest edge will be highlighted in
red color. Edge is extended if foot of perpendicular does not
lie in the edge segment.

An annotated label with distance value is attached to
the middle point of line drawn.
Point to Face

Click Measure 
Point to Face' options in the context menu

Click a point on a model and
click on a model triangle.

The point and triangle points will be highlighted in red
color.

An annotated label with distance value is attached to
the middle point of line drawn.
Arc
Measurement
Click with
the right most button in the Viewer Window, to pop up the Viewer
Context menu and then follow the instructions as below.
 Click
'Measure  Arc' option from viewer context menu.
 Click on
3 points of interest to create Arc
 An arc
is drawn from start point to end point passing through the
second point.
 All
three points are highlighted in red color.
 An arrow
is drawn from center of arc to the curve to denote the radius.
 An
annotated label with arc information is attached to the center
of arc.
 Curve
hidden behind the model is drawn with dashed lines.
Snap Vertex

This enables
user to select a nearest vertex of model through mouse click
while measuring distance or an arc.

User can use
Snap Vertex option to assure that the arc computed and drawn is
passing through actual arc points of model.
Below is the
snap shot of same arc measurement with snap vertex enabled
Vertex Info
 When
this option is selected, user can see a label with the X, Y, Z
coordinates of an exiting vertex, as he moves the mouse on the
model.

Compare Mesh Panel
Source 
Select
source model. 
Target 
Select
target model. 
Max. Deviation 
Specify maximum deviation
of interest. This value is used as a bound to select
target mesh geometry. Default value is computed based on
the source model bounding radius. Specify maximum
deviation of interest. This value is used as a bound to
select target mesh geometry. Default value is computed
based on the source model bounding radius. 
Compare Options 
Select compare mode.
1. Same Part: Parts with same name are compared.
2. Visible Parts: Each source part is compared with all
visible target parts.
3. All Parts: Each source part is compared with all
target parts 
Add to Viewpoint 
New result will be
displayed and added as a viewpoint. 
Set Part Max Deviation 
All nodes of the part are
set with one maximum distance value. This will highlight
modified parts. 
Compare 
Click Compares to compute
and display deviation result.
New result (or instance) is added to the CAE result
list. 
Note:
 If 'Add to Viewpoint' option is ON, a
viewpoint with a name '[sourcemodel]_Vs_[targetmodel]_[maxDistanceValue]_[compareMode]'
will be created under the viewpath 'Compare_Mesh'.
 User can not compare same models again
with same dialog parameters

Max. Deviation:
Max. Deviation is used to filter the number of triangles
in target model used for finding shortest distance
for comparison. When
Max. Deviation is a large value,
more number of triangles are considered and computation can
be slow. When no triangles are found within this limit, a
large value is set as distance. The default value for the
maximum deviation is set based on source model bounding box.
User has to specify Max. Deviation based on the
distance that need to be measured. For quick analysis, user
can set a small value based on the size of triangles.

Model/Part Transformation:
All the model and part transformations (Pick & Move,
Explode) are considered while computing the deviation.

Set Part Max Deviation
First deviation for each node for a part is
computed. Then,
If the option is false, the deviation for
each node is stored as CAE result.
If the option is true, then all nodes of the
part are set with same maximum part deviation. This way a
part will have same result or color. The parts with
deviation will get highlighted using this option.
Contour without Part max deviation 
Contour with
Part max deviation 


Compare Options
Compare Mode 
Description 
Same Part 
The parts
with same name from each model will be considered for
comparison. 
Visible
Parts 
Each part of
source model will be compared with all visible parts in
the target model. 
All parts 
Each part of
source model will be compared with all parts of target
model. 
Steps
 Load a cax file which contains at least two models. 'Measure
 Compare mesh' menu item will be enabled.
 Select Source Model.
 Select Target Model.
 Specify Max.Deviation if necessary.
 Select Compare Mode from Compare Options.
 Click Compare.
 New CAE result with name "Compare
[Target Model Name]" will be
created with new instance name
"Max.Deviation: [Deviation Value]"
to Source Model.
 User can create new comparison of same models by changing
Max.Deviation value. It will be appended to the same result as
another instance or iteration.
 The same result is selected and applied for color plot.
 User can handle the result as a CAE result.
How meshes are compared?

Compare mesh option is provided
for comparing mesh geometry between two models.

User need to select
appropriate parts in each models for comparison.

A vertex set from
first (reference) model is compared with all triangles in the
second model. The nearest distance from each vertex in first
model to all the triangles in the second model is computed and
stored as a new result in the first model. This result is
displayed as a color plot. User specified distance limit is used
to filter triangles from second model.

It is recommended to use model
with higher mesh density as first model.

The models used for the
comparison can come from CAD or CAE models.

Distance from a vertex to a
triangle is computed as follow:
