Difference between revisions of "Man MeshEditing"

From Open Tech Dental Wiki 4.0
Jump to: navigation, search
Line 5: Line 5:
  
 
<!--T:2-->
 
<!--T:2-->
−
When generating a mesh starting from data acquired by a scanner the meshes may not be perfect for the designated use.
+
When generating a mesh starting from the data acquired by a scanner, the meshes may not be perfect for the designated use.
  
 
<!--T:39-->
 
<!--T:39-->
−
The generated mesh may have artifacts, noises or holes that need to be fixed.  
+
The generated mesh may have artefacts, noises or holes that need to be fixed.  
  
 
<!--T:40-->
 
<!--T:40-->
−
OpticalRevEng Dental already applies a different mesh generation strategy specific to each element, trying to fix all the problems automatically, however there could be the need to further edit the meshes before exporting them to another software.
+
OpticalRevEng Dental already applies a specific mesh generation strategy for each element, trying to automatically fix all the problems. However, there could be the need to further edit the meshes before exporting them to another software.
  
 
<!--T:41-->
 
<!--T:41-->
−
In this page are described the Mesh Editing tools provided that can be found in the [[Support_Toolbars_And_Menus|Mesh Menu and Mesh Toolbar]].
+
In this page, there is a description of the Mesh Editing tools that can be found in the [[Support_Toolbars_And_Menus|Mesh Menu and Mesh Toolbar]].
  
 
== Remove Spikes == <!--T:3-->
 
== Remove Spikes == <!--T:3-->
  
 
<!--T:4-->
 
<!--T:4-->
−
A '''spike''' in a mesh is defined as a tiny part of the surface that is not actually part of the 3D object Acquired by the scanner.  
+
A '''spike''' in a mesh is defined as a tiny part of the surface that is not actually part of the 3D object acquired by the scanner.  
  
 
<!--T:42-->
 
<!--T:42-->
−
These spikes are normally automatically corrected by the software during mesh generation, but if meshes are imported from other system there could be some of them.
+
Usually, these spikes are automatically corrected by the software during the mesh generation but, if the meshes have been imported from another system, some spikes could be present.
  
 
<!--T:43-->
 
<!--T:43-->
−
This tool automatically removes all the found spikes and repair the mesh.
+
This tool automatically removes all the spikes and repairs the mesh.
  
 
<!--T:5-->
 
<!--T:5-->
Line 33: Line 33:
  
 
<!--T:7-->
 
<!--T:7-->
−
The sharpening tool performs two actions at the same time. It smooths the parts of the surface that are more planar and it sharpens the edges. It takes 2 parameters:
+
The sharpening tool carries out two actions. It smooths the parts of the surface that are more planar and, at the same time, it sharpens the edges. It takes 2 parameters:
  
 
<!--T:44-->
 
<!--T:44-->
−
# T [°] : This angle identifies what an edge is, all the parts of the surface that create an angle minor than T° will be sharpened. When this value is at 0 all the surface will be smoothed
+
# T [°] : this angle identifies what an edge is. All the parts of the surface that have an angle smaller than T° will be sharpened. When this value is at 0, all the surfacse will be smoothed
−
# Normal Iterations : How many times the software will pass over the surface to do the sharpening. Bigger values mean more smmoting and more sharpening
+
# Normal Iterations : how many times the software will pass over the surface to carry out the sharpening. Bigger values mean more smoothing and more sharpening
  
 
<!--T:45-->
 
<!--T:45-->
−
'''The software already applies this tool automatically using specific parameters. The use of this tool applying wrong parameters may modify the shape and dimension of the objects'''.
+
'''The software applies this tool automatically, using specific parameters. The use of this tool with the wrong parameters may modify the shape and the dimension of the objects'''.
  
 
== Mesh Smooth == <!--T:8-->
 
== Mesh Smooth == <!--T:8-->
  
 
<!--T:9-->
 
<!--T:9-->
−
This tool is similar to the Mesh Sharpening tool but it applies a smoothing to the whole surface without preserving the edges.
+
This tool is similar to the Mesh Sharpening one but it applies a smoothing to the whole surface, without preserving the edges.
  
 
<!--T:46-->
 
<!--T:46-->
−
'''The software already applies this tool automatically using specific parameters. he use of this tool applying wrong parameters may modify the shape and dimension of the objects'''.
+
'''The software applies this tool automatically, using specific parameters. The use of this tool with wrong parameters may modify the shape and the dimension of the objects'''.
  
 
== Mesh Decimate == <!--T:10-->
 
== Mesh Decimate == <!--T:10-->
  
 
<!--T:11-->
 
<!--T:11-->
−
This tool will try to reduce the number of triangles in a mesh, to save more space, trying to save as much detail as possible.
+
This tool reduces the number of triangles in a mesh, to save more space, trying to save as much detail as possible.
  
 
<!--T:47-->
 
<!--T:47-->
Line 59: Line 59:
  
 
<!--T:12-->
 
<!--T:12-->
−
On the top is specified the current number of triangles of the selected meshes.
+
On the top, the current number of triangles of the selected meshes is specified.
  
 
<!--T:48-->
 
<!--T:48-->
−
It is possible to input a percentage of triangles to be kept (For example 50% to halve the mesh size).
+
It is possible to insert a percentage of triangles to be kept (For example 50% to halve the mesh size).
  
 
<!--T:49-->
 
<!--T:49-->
−
It is also possible to establish a tolerance value. If the tolerance is enabled the software will stop the decimation if this will modify the mesh more than the tolerance parameter.  
+
It is also possible to establish a tolerance value. If the tolerance is enabled, the software will stop the decimation if this will modify the mesh more than the tolerance parameter.  
  
 
<!--T:50-->
 
<!--T:50-->
Line 73: Line 73:
  
 
<!--T:14-->
 
<!--T:14-->
−
This tool takes a selection of the mesh and it removes all the details, leaving the simpliest surface possible. It removes holes, spikes, noises. To use this tool:
+
This tool takes a selection of the mesh and it removes all the details, leaving the surface as plane as possible. It removes holes, spikes, noises. To use this tool:
  
 
<!--T:51-->
 
<!--T:51-->
−
# Select the area in which it is necessary to remove all the ''Features'' with the [[Man_DataEditing#Selection_Tools|Selection Tools]]
+
# Select the area in which it is necessary to remove all the ''features'' with the [[Man_DataEditing#Selection_Tools|Selection Tools]]
 
# Apply the ''Mesh Defeature''
 
# Apply the ''Mesh Defeature''
  
Line 82: Line 82:
  
 
<!--T:16-->
 
<!--T:16-->
−
This tool takes a mesh and searches for and removes the parts of the surface that are not ''Manifold'' as this [https://en.wikipedia.org/wiki/Manifold definition]
+
This tool takes a mesh and then looks for and removes the parts of the surface that are not ''Manifold''. Look at: [https://en.wikipedia.org/wiki/Manifold definition]
  
 
== Mesh Catenate == <!--T:17-->
 
== Mesh Catenate == <!--T:17-->
  
 
<!--T:18-->
 
<!--T:18-->
−
This tool can be used only in [[Free_Mode|Free Mode]]. It takes all the selected meshed and creates a single mesh merging all of the selected meshes togheter.
+
This tool can be used only in [[Free_Mode|Free Mode]]. It takes all the selected meshes and creates a single mesh, merging all of the selected meshes together.
  
 
== Flip Normals == <!--T:19-->
 
== Flip Normals == <!--T:19-->
  
 
<!--T:20-->
 
<!--T:20-->
−
Every mesh has an inside and an outside. They are distingushed by the software by appliying a different color to the inside of the image. This tool flips the inside and the outside of the selected meshes.
+
Every mesh has an inside and an outside. The software gives them two different colors. This tool flips the inside and the outside of the selected meshes.
  
 
== Detect Intersections == <!--T:21-->
 
== Detect Intersections == <!--T:21-->
  
 
<!--T:22-->
 
<!--T:22-->
−
Sometimes it is possible that part of the surface of a mesh intersect with the mesh itself, something that in reality is not possibile. This tool identifies this situations and fixes them
+
Sometimes, it is possible that part of the surface of a mesh is intersected with the mesh itself, something that in reality is not possibile. This tool identifies this situation and fixes it.
  
 
== Fill All Holes == <!--T:23-->
 
== Fill All Holes == <!--T:23-->
  
 
<!--T:24-->
 
<!--T:24-->
−
This is an interactive tool that allows to fill holes in the currently selected mesh.
+
This is an interactive tool that allows to fill the holes in the currently selected mesh.
  
 
<!--T:52-->
 
<!--T:52-->
Line 113: Line 113:
  
 
<!--T:26-->
 
<!--T:26-->
−
In the fill one mode the software will highlight the hole near the mouse cursor, and by clicking with the left mouse button on the highlighted hole the sofware will close it.
+
In the fill one mode, the software will highlight the hole near the mouse cursor, and by clicking with the left mouse button on the highlighted hole, the sofware will fill it.
  
 
=== Fill All === <!--T:27-->
 
=== Fill All === <!--T:27-->
  
 
<!--T:28-->
 
<!--T:28-->
−
In the fill all mode the software will try to close all the holes. With the ''Filter By Size'' function it is possible to select all the holes below one size and close only those. The selected holes will be highlighted in real time by the sofware.
+
In the fill all mode, the software will try to close all the holes. With the ''Filter By Size'' function, it is possible to select all the holes below one size and fill them. The selected holes will be highlighted in real time by the sofware.
  
 
=== Curvature Filling === <!--T:29-->
 
=== Curvature Filling === <!--T:29-->
  
 
<!--T:30-->
 
<!--T:30-->
−
There is an additional option: curvature filling. If this option is enabled the software will try to follow the curvature of the rest of the surface closing the hole. If it's disabled the software will ignore the rest of the surface and close the hole with a straight plane.
+
There is an additional option: curvature filling. If this option is enabled, the software will try to follow the curvature of the rest of the surface, closing the hole. If it's disabled, the software will ignore the rest of the surface and close the hole with a straight plane.
  
−
== Close Denturse == <!--T:31-->
+
== Close Denture == <!--T:31-->
  
 
<!--T:32-->
 
<!--T:32-->
−
When scanning an entire jaw there will be a big hole at the base. This tool is made to close only that hole. Closing that hole with the Fill All Holes tool take a lot of time and the final result will not be good enough.
+
When scanning an entire jaw, there will be a big hole at the base. This tool has been created to close only that hole. Closing that hole with the Fill All Holes tool takes a lot of time and the final result will not be good enough.
  
 
<!--T:54-->
 
<!--T:54-->
−
With the close denturse tool the mesh will be closed with a perfect plane in a reduced amount of time.
+
With the close denture tool, the mesh will be closed with a perfect plane in a reduced amount of time.
  
 
<!--T:55-->
 
<!--T:55-->
−
This tool will not work if the mesh has other holes or artifacts.
+
This tool will not work if the mesh has other holes or artefacts.
  
 
== Mesh Cleaning == <!--T:33-->
 
== Mesh Cleaning == <!--T:33-->
  
 
<!--T:34-->
 
<!--T:34-->
−
This tool takes a mesh and tries to remove all the possible artifacts and problems.
+
This tool takes a mesh and tries to remove all the possible artefacts and problems.
  
 
== Mesh Offset == <!--T:35-->  
 
== Mesh Offset == <!--T:35-->  
  
 
<!--T:36-->
 
<!--T:36-->
−
This tool creates a bigger/smaller version of the selected mesh. You can select how to change the mesh with the Offset [mm] parameter.
+
This tool creates a bigger/smaller version of the selected mesh. The Offset [mm] parameter allows to select how much the mesh will change.
  
 
<!--T:56-->
 
<!--T:56-->
−
The three flags (Remesh, Sharpen and Optimize Vertices) have to remain checked.
+
The three flags (Remesh, Sharpen and Optimize Vertices) have to be checked.
  
 
<!--T:37-->
 
<!--T:37-->
−
Normally none of these tools is needed to work because the strategies already apply a selected sequence of these tools specific for every element.
+
Usually, none of these tools is necessary to work because the strategies already apply a selected sequence of specific tools to each element.
  
 
=Next= <!--T:38-->
 
=Next= <!--T:38-->
  
 
<!--T:57-->
 
<!--T:57-->
−
You can now return to the [[Main_Page|Main Page]] or continue to the [[Man_ImplantAlign|Implant Align]] page.
+
It's possible to return to the [[Main_Page|Main Page]] or continue to the [[Man_ImplantAlign|Implant Alignment]] page.
 
</translate>
 
</translate>

Revision as of 14:52, 2 September 2015

Other languages:
العربية • ‎Deutsch • ‎English • ‎español • ‎français • ‎italiano • ‎日本語 • ‎português do Brasil • ‎română • ‎русский • ‎Türkçe • ‎中文（繁體）‎

Mesh Editing

When generating a mesh starting from the data acquired by a scanner, the meshes may not be perfect for the designated use.

The generated mesh may have artefacts, noises or holes that need to be fixed.

OpticalRevEng Dental already applies a specific mesh generation strategy for each element, trying to automatically fix all the problems. However, there could be the need to further edit the meshes before exporting them to another software.

In this page, there is a description of the Mesh Editing tools that can be found in the Mesh Menu and Mesh Toolbar.

Remove Spikes

A spike in a mesh is defined as a tiny part of the surface that is not actually part of the 3D object acquired by the scanner.

Usually, these spikes are automatically corrected by the software during the mesh generation but, if the meshes have been imported from another system, some spikes could be present.

This tool automatically removes all the spikes and repairs the mesh.

Before Remove Spikes
After Remove Spikes

Mesh Sharpening

The sharpening tool carries out two actions. It smooths the parts of the surface that are more planar and, at the same time, it sharpens the edges. It takes 2 parameters:

  1. T [°] : this angle identifies what an edge is. All the parts of the surface that have an angle smaller than T° will be sharpened. When this value is at 0, all the surfacse will be smoothed
  2. Normal Iterations : how many times the software will pass over the surface to carry out the sharpening. Bigger values mean more smoothing and more sharpening

The software applies this tool automatically, using specific parameters. The use of this tool with the wrong parameters may modify the shape and the dimension of the objects.

Mesh Smooth

This tool is similar to the Mesh Sharpening one but it applies a smoothing to the whole surface, without preserving the edges.

The software applies this tool automatically, using specific parameters. The use of this tool with wrong parameters may modify the shape and the dimension of the objects.

Mesh Decimate

This tool reduces the number of triangles in a mesh, to save more space, trying to save as much detail as possible.

Dental 2 5 decimate.jpg

On the top, the current number of triangles of the selected meshes is specified.

It is possible to insert a percentage of triangles to be kept (For example 50% to halve the mesh size).

It is also possible to establish a tolerance value. If the tolerance is enabled, the software will stop the decimation if this will modify the mesh more than the tolerance parameter.

Just click on Apply to see the result.

Mesh Defeature

This tool takes a selection of the mesh and it removes all the details, leaving the surface as plane as possible. It removes holes, spikes, noises. To use this tool:

  1. Select the area in which it is necessary to remove all the features with the Selection Tools
  2. Apply the Mesh Defeature

Make Manifold

This tool takes a mesh and then looks for and removes the parts of the surface that are not Manifold. Look at: definition

Mesh Catenate

This tool can be used only in Free Mode. It takes all the selected meshes and creates a single mesh, merging all of the selected meshes together.

Flip Normals

Every mesh has an inside and an outside. The software gives them two different colors. This tool flips the inside and the outside of the selected meshes.

Detect Intersections

Sometimes, it is possible that part of the surface of a mesh is intersected with the mesh itself, something that in reality is not possibile. This tool identifies this situation and fixes it.

Fill All Holes

This is an interactive tool that allows to fill the holes in the currently selected mesh.

Dental 2 5 fillHoles.jpg

This tool can work in 2 different ways

Fill One

In the fill one mode, the software will highlight the hole near the mouse cursor, and by clicking with the left mouse button on the highlighted hole, the sofware will fill it.

Fill All

In the fill all mode, the software will try to close all the holes. With the Filter By Size function, it is possible to select all the holes below one size and fill them. The selected holes will be highlighted in real time by the sofware.

Curvature Filling

There is an additional option: curvature filling. If this option is enabled, the software will try to follow the curvature of the rest of the surface, closing the hole. If it's disabled, the software will ignore the rest of the surface and close the hole with a straight plane.

Close Denture

When scanning an entire jaw, there will be a big hole at the base. This tool has been created to close only that hole. Closing that hole with the Fill All Holes tool takes a lot of time and the final result will not be good enough.

With the close denture tool, the mesh will be closed with a perfect plane in a reduced amount of time.

This tool will not work if the mesh has other holes or artefacts.

Mesh Cleaning

This tool takes a mesh and tries to remove all the possible artefacts and problems.

Mesh Offset

This tool creates a bigger/smaller version of the selected mesh. The Offset [mm] parameter allows to select how much the mesh will change.

The three flags (Remesh, Sharpen and Optimize Vertices) have to be checked.

Usually, none of these tools is necessary to work because the strategies already apply a selected sequence of specific tools to each element.

Next

It's possible to return to the Main Page or continue to the Implant Alignment page.

Retrieved from "https://wiki.opentechdental.com/w/index.php?title=Man_MeshEditing&oldid=1684"