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< h1 > Cutting quadrangles< / h1 >
< p > < img src = "../i_blue.jpg" x-maintain-ratio = "TRUE" width = "30px" height = "30px" border = "0" class = "img_whs1" > This operation allows to cut one or several quadrangle
elements by addition of a supplementary edge which will connect two opposite
corners. < / p >
< p > < / p >
< p class = TODO > To cut quadrangles:< / p >
< p class = "whs2" > < / p >
< p class = "whs2" > 1. Display a mesh or a submesh in the 3D
viewer.< / p >
< p class = "whs2" > 2. In the < span style = "font-weight: bold;" > < B > Modification
< / B > < / span > menu select the < span style = "font-weight: bold;" > < B > Cutting of quadrangles
< / B > < / span > item or click < img src = "../image82.gif" width = "25px" height = "22px" border = "0" class = "img_whs3" > button in the toolbar. The following
dialog box will appear:< / p >
< p > < / p >
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< p class = "whs2" > < img src = "../pics/a-cuttingofquadrangles.png" x-maintain-ratio = "TRUE" width = "306px" height = "525px" border = "0" class = "img_whs4" > < / p >
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< p > < / p >
< ul type = "disc" class = "whs5" >
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< li class = kadov-p > < p class = "whs6" > The
main list< span style = "font-weight: bold;" > < B > < / B > < / span > contains the list of
quadrangles. You can click on an quadrangle in the 3D viewer and it will
be highlighted (lock Shift keyboard button to select several quadrangles).
< span style = "margin-left: 0px; font-weight: bold;" > < B > Click Add < / B > < / span > < span
style="margin-left: 0px;">button and the ID of this quadrangle will be
added to the list. To remove a selected element or elements from the list
click < / span > < span style = "margin-left: 0px; font-weight: bold;" > < B > Remove
< / B > < / span > < span style = "margin-left: 0px;" > button. < / span > < span style = "margin-left: 0px; font-weight: bold;" > < B > Sort
list < / B > < / span > < span style = "margin-left: 0px;" > button allows to sort the
list of IDs. < / span > < span style = "margin-left: 0px; font-weight: bold;" > < B > Filter
< / B > < / span > < span style = "margin-left: 0px;" > button allows to apply a definite
filter to the selection of quadrangles.< / span > < / p > < / li >
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< li class = kadov-p > < p class = "whs6" > < span
style="font-weight: bold;">< B > Apply to all < / B > < / span > radio button allows to
modify the orientation of all quadrangles of the currently displayed mesh
or submesh.< / p > < / li >
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< li class = kadov-p > < p class = "whs7" > Preview
- < span style = "font-weight: normal;" > provides a preview of cutting in
the viewer.< / span > < / p > < / li >
< li class = kadov-p > < p class = "whs8" > Criterion< / p > < / li >
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< li class = kadov-p > < p class = "whs6" > < span
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style="font-weight: bold;">< B > Use diagonal 1-3 < / B > < / span > and< span style = "font-weight: bold;" > < B >
Use diagonal 2-4 < / B > < / span > allows
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to specify the opposite corners which will be connected by the cutting
edge.< / p > < / li >
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< li class = kadov-p > < p class = "whs7" > Use
numeric factor - < span style = "margin-left: 40px; font-weight: normal;" > allows
to apply the operation only to those objects which meet the chosen criterion
(from the list of Quality Controls, i.e. Skew, Warping, Minimum Angle,
etc.)< / span > < / p > < / li >
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< li class = kadov-p > < p class = "whs9" > < span style = "font-weight: bold;" > < B > Select
from -< / B > < / span > allows to choose a submesh or an existing group whose quadrangle
elements will be automatically added to the list.< / p > < / li >
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< / ul >
< p class = "whs2" > < / p >
< p class = "whs2" > 3. Click the < span style = "font-weight: bold;" > < B > Apply
< / B > < / span > or < span style = "font-weight: bold;" > < B > OK < / B > < / span > button to confirm
the operation.< / p >
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< p class = "whs2" > < / p >
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< table x-use-null-cells cellspacing = "0" width = "100%" class = "whs10" >
< col class = "whs11" >
< col class = "whs11" >
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< tr valign = "top" class = "whs12" >
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< td width = "50%" class = "whs13" >
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< p > < img src = "../image52.jpg" width = "353px" height = "300px" border = "0" class = "img_whs14" > < / td >
< td width = "50%" class = "whs15" >
< p > < img src = "../image51.jpg" width = "353px" height = "300px" border = "0" class = "img_whs14" > < / td > < / tr >
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< / table >
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< p class = "whs9" > < / p >
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< p > < span style = "font-weight: bold;" > < B > See
Also< / B > < / span > a sample TUI Script of a < a href = "../modifying_meshes.htm#bookmark7" > Cutting
Quadrangles< / a > operation. < / p >
< p > < / p >
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