TRIFILTER

Use the Filter option to reduce the size and complexity of triangulations by removing triangles that meet user-specified criteria. For example, you might remove all of the triangles that have an area less than or equal to 1m2. It also enables you to remove excess data that causes the formation of small triangles (facets).

Refer to the Overview section for information on the problems caused by small triangles.


Usage:

TriFilter.exe <tri.00t> [option 1] [option 2] ...

<> indicates a mandatory switch.
[ ] indicates an optional switch


Where:

Option

Description

Despiking on  
-d Despiking on
Simplify Filtering  
-sp percentage Percentage of triangulations
-sn num_tri Number of triangulations
-sd distance Average distance error
-so Optimize vertex placement
(valid with sp|sn|sd)
Multiple Shell Filtering  
-mn num_tris Numer of triangles
-ms area Surface area
-mb volume Bounding cube volume
Triangulation Boundary Filtering  
-bd vertical Deviation double
-bd horizontal Deviation double
-bf Fold
Coplanar Filtering  
-ca angle Angle (deg) of deviation from plane
-cd distance Distance of deviation from plane
-cr Repeat filter (valid with ca|cd)
Output Parameters  
-o outputName Save to output tri name
-v Verbose
-vv Verbose with details

Example:

TriFilter.exe topo.00t -l test.tfl.spec test -o filtered_topo.00t