Difference between revisions of "Man MeshEditing"

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{{DISPLAYTITLE:Mesh Editing|noerror}}
 
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= Mesh Editing = <!--T:1-->
 
= Mesh Editing = <!--T:1-->
  
 
<!--T:2-->
 
<!--T:2-->
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When generating a mesh starting from data acquired by a scanner the meshes may not be perfect for your need.
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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-->
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The generated mesh may have artifacts, noise or holes that need to be fixed.  
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The generated mesh may have defects, noises or holes that need to be fixed.  
  
 
<!--T:40-->
 
<!--T:40-->
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OpticalRevEng Dental already apply a different mesh generation strategy specific for the element you're working with, trying to fix all the problems automatically, but you may need to further edit the meshes before exporting them to another software.
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OpticalRevEng Dental already applies a specific mesh generation strategy for each element. However, there could be the need to further edit the meshes before exporting them to another software.
  
 
<!--T:41-->
 
<!--T:41-->
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In this page you can read about the Mesh Editing tools provided tha can be found in the [[Support_Toolbars_And_Menus|Mesh Menu and Mesh Toolbar]].
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In this page, there is a description of the Mesh Editing tools that can be found either in the [[Support_Toolbars_And_Menus|Mesh Menu or in the Mesh Toolbar]].
  
 
== Remove Spikes == <!--T:3-->
 
== Remove Spikes == <!--T:3-->
  
 
<!--T:4-->
 
<!--T:4-->
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A '''spike''' in a mesh is a when you have a tiny part of the surface that in reality is not part of the 3D object Acquired by the scanner.  
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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-->
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Theese spikes are normally automatically corrected by the software during the mesh generation, but if you import meshes from other system you may find them.
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Usually, these spikes are automatically corrected by the software during mesh generation but, if the meshes have been imported from another system, some spikes could be present.
  
 
<!--T:43-->
 
<!--T:43-->
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This tools automatically removes all the spike it found and repair the mesh.
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This tool automatically removes all the spikes and repairs the mesh.
  
 
<!--T:5-->
 
<!--T:5-->
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[[File:Dental_2_5_spike.jpg|frame|left|Before Remove Spikes]] [[File:Dental_2_5_spikeRemoved.jpg|frame|none|After Remove Spikes]]
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<gallery>
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File:Dental_2_5_spike.jpg|Before Remove Spikes
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File:Dental_2_5_spikeRemoved.jpg|After Remove Spikes
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</gallery>
  
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== Mesh Sharpening == <!--T:6-->
 
  
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<!--T:7-->
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== Adv Smoothing == <!--T:58-->  
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The sharpening tools do two things at the same time. It smooth the part of the surface that are more planar and it sharpen the edges. It takes 2 parameters:
 
  
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<!--T:59-->
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# T [°] : This angle identify what is an edge, all the parts of the surface that create an angle less than T° will be sharpened. If you put this a 0 you're smoothing all the surface
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The '''Advanced Smoothing''' tool smooths the whole surface of the mesh, compensating its irregularities.  
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# Normal Iterations : How many times the software will pass over the surface to do the sharpening. Bigger values means more smmoting and more sharpening
 
  
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<!--T:45-->
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<!--T:60-->
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'''This tool is used automatically by the software for you with specific parameters. Use of this software with the wrong parameters may modify the shape and dimension of the objects'''.
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[[File:Adv-smoothing.jpg]]
  
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== Mesh Smooth == <!--T:8-->
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<!--T:61-->
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This tool applies a series of parameters:
 +
; Iteration : Number of times the tool will be applied.
 +
; Strenght : How much the tool can change the object surface. The higher the value the more the mesh is smoothed and sharpened.
 +
; Sensitivity : How many parts of the surface will be identified as 'Details' (margins, edges). The details parts will be sharpened, but not smoothed.
 +
; Protection: : How many 'Detail' parts will not be sharpened. The higher the value the less the small details are sharpened.
 +
; Max Deviation : How much the tool can modify the shape of the mesh. This is the maximum distance every point of the final mesh can have from the original mesh.
 +
; Flip Edges : If this option is enabled the tool will rearrange the mesh structure to better represent edges.
  
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<!--T:9-->
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<!--T:46-->
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This tool is similar to the Mesh Sharpening tools but apply a smoothing to all the surface without preserving the edges.
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'''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'''.
  
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<!--T:46-->
 
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'''This tool is used automatically by the software for you with specific parameters. Use of this software with the wrong parameters may modify the shape and dimension of the objects'''.
 
  
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== Mesh Decimate == <!--T:10-->
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== Decimate == <!--T:10-->
  
 
<!--T:11-->
 
<!--T:11-->
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This tool will try to reduce the number of triangle in a mesh, to save more space, trying to save the most details possible.
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This tool reduces the number of triangles in a mesh, to save more space, trying to preserve as much detail as possible.
  
 
<!--T:47-->
 
<!--T:47-->
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[[File:Dental_2_5_decimate.jpg|upright|center]]
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[[File:Dental_2_5_decimate.jpg]]
  
 
<!--T:12-->
 
<!--T:12-->
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On the top you can see the current number of triangles of the selected meshes.
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On the top is specified the current number of triangles of the selected meshes.
  
 
<!--T:48-->
 
<!--T:48-->
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You can input a percentage of triangle that you want to keep (For example 50% if you want to halve the mesh size).
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It is possible to insert a percentage of triangles to be kept (For example 50% to halve the mesh size).
  
 
<!--T:49-->
 
<!--T:49-->
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Then you can put a tolerance. If the tolerance is enabled the software will stop the decimation if this will modify the mesh more than the tolerance parameter.  
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It is also possible to establish a tolerance value. If the tolerance is enabled, the software will stop the decimation when this would modify the mesh more than the tolerance parameter.  
  
 
<!--T:50-->
 
<!--T:50-->
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Then you just need to click Apply to see the result.
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Just click on Apply to see the result.
  
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== Mesh Defeature == <!--T:13-->
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== Defeature == <!--T:13-->
  
 
<!--T:14-->
 
<!--T:14-->
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This tool take a selection of the mesh and it removes all the details, leaving the simpliest surface possible. It remove holes, spikes, noise. You just need to:
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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-->
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# Select the area where you want to remove all the ''Features'' with the [[Man_DataEditing#Selection_Tools|Selection Tools]]
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# 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''
  
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== Make Manifold == <!--T:15-->
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== Catenate == <!--T:17-->
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<!--T:16-->
 
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This tool take a mesh and search and remove the parts of the surface that are not ''Manifold'' as this [https://en.wikipedia.org/wiki/Manifold definition]
 
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== Mesh Catenate == <!--T:17-->
 
  
 
<!--T:18-->
 
<!--T:18-->
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This tool can be used only in [[Free_Mode|Free Mode]]. It takes all the mesh selected and create a single mesh merging all of the selected meshes togheter.
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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-->
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Every mesh has an inside and an outside. You can identify them because the software paint the inside with a different color. This tool flip the inside and the outside of the selected meshes.
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Every mesh has an inside and an outside. The software gives them two different colors. This tool inverts the inside and the outside of the selected meshes.
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== Detect Intersections == <!--T:21-->
 
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<!--T:22-->
 
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Sometimes is possible that part of the surface of a mesh intersect with the mesh itself, something that in reality is not possibile. This tool identify this situations and fix them
 
  
 
== Fill All Holes == <!--T:23-->
 
== Fill All Holes == <!--T:23-->
  
 
<!--T:24-->
 
<!--T:24-->
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This is an interactive tool that let you fill holes in the currently selected mesh.
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This is an interactive tool that allows to fill the holes in the currently selected mesh.
  
 
<!--T:52-->
 
<!--T:52-->
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[[File:Dental 2 5 fillHoles.jpg|upright|center]]
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[[File:Dental 2 5 fillHoles.jpg]]
  
 
<!--T:53-->
 
<!--T:53-->
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<!--T:26-->
 
<!--T:26-->
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In the fill one mode the software will highlight the hole near the mouse cursor, and if you click with the left mouse button on the highlighted hole the sofware will close it.
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In the fill one mode, the software will highlight the hole near the mouse cursor. By clicking with the left mouse button on the highlighted hole it will be filed.
  
 
=== Fill All === <!--T:27-->
 
=== Fill All === <!--T:27-->
  
 
<!--T:28-->
 
<!--T:28-->
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In the fill all modes the software will try to close all the hodes. With the ''Filter By Size'' function you can select all the holes below one size and close only them. The selected holes will be highlighted in real time by the sofware.
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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-->
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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.
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There is an additional option: curvature filling. If this option is enabled, the software will try to close the hole following the curvature of the rest of the surface. If it's disabled, the software will ignore the rest of the surface and close the hole with a straight plane.
  
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== Close Denturse == <!--T:31-->
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== Close Denture == <!--T:31-->
  
 
<!--T:32-->
 
<!--T:32-->
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When you scan an entire jaw you'll have 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 is not good enough.
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When scanning a whole jaw, the base information will not be acquired. This tool has been created to recreate that information. Closing the dunture with the Fill All Holes tool takes too much time and the final result will not be good enough.
  
 
<!--T:54-->
 
<!--T:54-->
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With the close denturse tool the mesh will be closed with a perfect plane and is really fast.
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With the close denture tool, the mesh will be closed with a perfect plane in a reduced amount of time.
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<!--T:55-->
 
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This tool will not work if the mesh has other holes or artifacts.
 
  
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== Mesh Cleaning == <!--T:33-->
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== Fix Mesh == <!--T:33-->
  
 
<!--T:34-->
 
<!--T:34-->
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This tool take a mesh and try to remove all the possible artifacts and problems.
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Removes all the possible defects and noises of a mesh.
  
 
== Mesh Offset == <!--T:35-->  
 
== Mesh Offset == <!--T:35-->  
  
 
<!--T:36-->
 
<!--T:36-->
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This tool create a bigger/smaller version of the selected mesh. You can select how to change the mesh with the Offset [mm] parameter.
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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-->
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The three flags (Remesh, Sharpen and Optimize Vertices) has to remain checked.
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The three flags (Remesh, Sharpen and Optimize Vertices) have to be checked.
  
 
<!--T:37-->
 
<!--T:37-->
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Normally none of this tool is needed to work because the strategies alread apply a selected sequence of this tool specific for every element.
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Usually, none of these tools is necessary to work because the strategies already apply a selected sequence of specific tools to each element.
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=Next= <!--T:38-->
 
  
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<!--T:57-->
 
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You can now return to the [[Main_Page|Main Page]] or continue to the [[Man_ImplantAlign|Implant Align]] page.
 
 
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{{Navigation|Man_MeshGen|Man_ImplantAlign}}

Latest revision as of 15:17, 20 June 2016


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 defects, noises or holes that need to be fixed.

OpticalRevEng Dental already applies a specific mesh generation strategy for each element. 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 either in the Mesh Menu or in the 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 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


Adv Smoothing

The Advanced Smoothing tool smooths the whole surface of the mesh, compensating its irregularities.

Adv-smoothing.jpg

This tool applies a series of parameters:

Iteration 
Number of times the tool will be applied.
Strenght 
How much the tool can change the object surface. The higher the value the more the mesh is smoothed and sharpened.
Sensitivity 
How many parts of the surface will be identified as 'Details' (margins, edges). The details parts will be sharpened, but not smoothed.
Protection
 : How many 'Detail' parts will not be sharpened. The higher the value the less the small details are sharpened.
Max Deviation 
How much the tool can modify the shape of the mesh. This is the maximum distance every point of the final mesh can have from the original mesh.
Flip Edges 
If this option is enabled the tool will rearrange the mesh structure to better represent 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.


Decimate

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

Dental 2 5 decimate.jpg

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

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 when this would modify the mesh more than the tolerance parameter.

Just click on Apply to see the result.

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

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 inverts the inside and the outside of the selected meshes.

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. By clicking with the left mouse button on the highlighted hole it will be filed.

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 close the hole following the curvature of the rest of the surface. 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 a whole jaw, the base information will not be acquired. This tool has been created to recreate that information. Closing the dunture with the Fill All Holes tool takes too much 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.

Fix Mesh

Removes all the possible defects and noises of a mesh.

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.

Dental 2 5 wiz prev.png Homebutton.png Dental 2 5 wiz next.png
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