Difference between revisions of "Man Align"

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When more than one object is acquired by the scanner, the position of each item is unrelated to the position of the others. To correctly work with the scanned data all the Acquisitions need to be located in the same reference system.   
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When more than one object is acquired by the scanner, the position of each item is unrelated to the position of the others. In order to correctly work with the scanned data, all the Acquisitions need to be located in the same reference system.   
  
 
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First identify an Acquisition that will be used as a reference for all the others. In the '''Structured Projects''' the software automatically carries out this procedure.  
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Firstly, the user has to identify an Acquisition that will be used as a reference for all the others. In the '''Structured Projects''' the software automatically carries out this procedure.  
  
 
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Every time a new information gets acquired it is necessary to ''align'' the new data to the '''Reference Acquisition''' or to '''another acquisition already aligned at the rest of the project'''
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Every time a new information is acquired, it is necessary to ''align'' the new data to the '''Reference Acquisition''' or to '''another acquisition already aligned at the rest of the project'''
  
 
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Every acquired information will have a specific '''Reference Acquisition'''. The ''Project Tree'' will show this relation, every child will be aligned to his parent node in the tree.
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Every acquired information will have a specific '''Reference Acquisition'''. The ''Project Tree'' will show this relation, every child will be aligned to its parent node in the tree.
  
 
= Direct Alignment = <!--T:4-->
 
= Direct Alignment = <!--T:4-->
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# Select from the Project Tree the element to be aligned to the rest of the project
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# Select from the Project Tree the element that has to be aligned to the rest of the project
 
# Click the ''Alignment Button'' in the [[Main_Toolbar|Main Toolbar]]
 
# Click the ''Alignment Button'' in the [[Main_Toolbar|Main Toolbar]]
  
 
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The software will select the most appropriate reference item, analyze the selcted acquisition and the reference item, and try to identify the correct position of the selected item inside the reference item. <br/>
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The software will select the most appropriate reference item, analyze the selected acquisition and the reference item and try to identify the correct position of the selected item inside the reference item. <br/>
If no alignment can be identified by the software then a '''Manual Alignment''' will start.
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If no alignment can be identified by the software, a '''Manual Alignment''' will start.
  
 
= Manual Alignment = <!--T:14-->
 
= Manual Alignment = <!--T:14-->
  
 
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The manual alignment is launched every time the software can not complete a '''Direct Alignment''' or by holding the SHIFT key when clicking the ''Alignment Button'' in the [[Main_Toolbar|Main Toolbar]]
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The manual alignment starts every time the software can not complete a '''Direct Alignment''' or by holding SHIFT when clicking the ''Alignment Button'' in the [[Main_Toolbar|Main Toolbar]]
  
 
== Interface == <!--T:16-->
 
== Interface == <!--T:16-->
  
 
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During the manual alignment the interface will change.
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During the manual alignment, the interface will change.
  
 
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* On the '''top left''' there is the ''reference object'' that gives the reference position for all the proejct data
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* On the '''top left''' there is the ''reference object'', which gives the reference position for all the project data
* On the '''top right''' there is the ''moving object'' that has to be moved from his current position to place it in the same reference system of all the other project data
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* On the '''top right''' there is the ''moving object'', that has to be moved from its current position and placed in the same reference system of all the other project data
* On the '''bottom''' are visible at the same time ''both the objects''  to check the current positions of the moving object
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* On the '''bottom''' there are, at the same time, both the objects, so that the user can check the current position of the moving object
 
* On the '''bottom right''' some options and a ''Numeric Report'' are available
 
* On the '''bottom right''' some options and a ''Numeric Report'' are available
  
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To manual align:
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To manually align the elements:
  
 
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# Rotate both the reference object and the moving object in the same point of view to see some common part between the two objects
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# Rotate both the reference object and the moving object in the same point of view, until the parts in common are visible
 
# Click on the same point on both the objects
 
# Click on the same point on both the objects
# Check on the bottom 3D view if the position is more or less correct (It's not necessary for them to be in a perfect position at this stage)
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# Check in the 3D view below if the position is more or less correct (it's not necessary, at this stage, to find the perfect position)
 
# Click the '''Best Fit''' button on the right
 
# Click the '''Best Fit''' button on the right
  
 
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If the two objects have enough common points the software will find the best alignment between the two. Check the alignment visually on the bottom 3D View or reading the values in the Numeric Report.   
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If the two objects have enough common points, the software will find the best alignment between them. Visually check the alignment on the bottom 3D View or by reading the values in the Numeric Report.   
  
 
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If the alignment is good Click '''Ok''' to confirm the new position of the ''moving object''.
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If the alignment is good, click '''Ok''' to confirm the new position of the ''moving object''.
  
 
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If the alignment is not good enough Click the '''Reset''' button and start the alignment again.
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If the alignment is not good enough, click the '''Reset''' button and start the alignment again.
  
 
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# '''Fine Alignment''' : By clicking ''Best Fit'' the software will try to move the moving object up to 1mm to find a better alignment. This can create problems if the common part between the two objects is really small. With '''Fine Aligment''' enabled the software will move the moving object not more than 0.1mm
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# '''Fine Alignment''' : by clicking ''Best Fit'' the software will try to move the moving object up to 1mm, to find a better alignment. This can create problems if the parts in common between the two objects are really small. With the option '''Fine Aligment''' enabled, the software will move the moving object not more than 0.1mm
# '''Ignore Normals''' : The objects have an inside and an outside. When the software searches for an alignment it refuses to align the inside of one object with the outouside of the other. To ignore the differences between inside and outside Check the '''Ingore Normals''' option
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# '''Ignore Normals''' : the objects have an inside and an outside. When the software looks for an alignment, it doesn't align the inside of one object with the outside of the other. To ignore the differences between inside and outside, flag the '''Ignore Normals''' option
  
 
=Next= <!--T:8-->
 
=Next= <!--T:8-->
  
 
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Now that you know how to align an object to the rest of the project you can return to the [[Main_Page|Main Page]] or continue to the [[Man_MeshGen|Mesh Generation]] page
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It's possible to return to the [[Main_Page|Main Page]] or continue to the [[Man_MeshGen|Mesh Generation]] page.
 
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Revision as of 14:52, 31 August 2015

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Alignment

When more than one object is acquired by the scanner, the position of each item is unrelated to the position of the others. In order to correctly work with the scanned data, all the Acquisitions need to be located in the same reference system.

Firstly, the user has to identify an Acquisition that will be used as a reference for all the others. In the Structured Projects the software automatically carries out this procedure.

Every time a new information is acquired, it is necessary to align the new data to the Reference Acquisition or to another acquisition already aligned at the rest of the project

Every acquired information will have a specific Reference Acquisition. The Project Tree will show this relation, every child will be aligned to its parent node in the tree.

Direct Alignment

OpticalRevEng Dental can align the Acquisitions by itself. Just:

  1. Select from the Project Tree the element that has to be aligned to the rest of the project
  2. Click the Alignment Button in the Main Toolbar

The software will select the most appropriate reference item, analyze the selected acquisition and the reference item and try to identify the correct position of the selected item inside the reference item.
If no alignment can be identified by the software, a Manual Alignment will start.

Manual Alignment

The manual alignment starts every time the software can not complete a Direct Alignment or by holding SHIFT when clicking the Alignment Button in the Main Toolbar

Interface

During the manual alignment, the interface will change.

Dental 2 5 manualAlignment.jpg

There are 4 different areas in this screen:

  • On the top left there is the reference object, which gives the reference position for all the project data
  • On the top right there is the moving object, that has to be moved from its current position and placed in the same reference system of all the other project data
  • On the bottom there are, at the same time, both the objects, so that the user can check the current position of the moving object
  • On the bottom right some options and a Numeric Report are available

Procedure

To manually align the elements:

  1. Rotate both the reference object and the moving object in the same point of view, until the parts in common are visible
  2. Click on the same point on both the objects
  3. Check in the 3D view below if the position is more or less correct (it's not necessary, at this stage, to find the perfect position)
  4. Click the Best Fit button on the right

If the two objects have enough common points, the software will find the best alignment between them. Visually check the alignment on the bottom 3D View or by reading the values in the Numeric Report.

If the alignment is good, click Ok to confirm the new position of the moving object.

If the alignment is not good enough, click the Reset button and start the alignment again.

Dental 2 5 manualAlignmentAnim.gif

Options

There are two options available during the manual aligment:

  1. Fine Alignment : by clicking Best Fit the software will try to move the moving object up to 1mm, to find a better alignment. This can create problems if the parts in common between the two objects are really small. With the option Fine Aligment enabled, the software will move the moving object not more than 0.1mm
  2. Ignore Normals : the objects have an inside and an outside. When the software looks for an alignment, it doesn't align the inside of one object with the outside of the other. To ignore the differences between inside and outside, flag the Ignore Normals option

Next

It's possible to return to the Main Page or continue to the Mesh Generation page.