Here is a rundown of the principal functions.They are about files“New”、”Open”、”Save”、”Save as”、”Quit” funcrions.If you poly a graph and want to save it, you can click ?”Save” to save it or click ?“Save as”to save as it.When you want to see the once graph,you can click ?“Open”to open the once graph.If you want to poly a new graph,you can click ?“New”.When you through the operation of graph ,you can click ?“Quit”.
“New”: Setup a new documentation.
These two graphs` function is same.
“Open”:Open a existing
file.
These two graphs have
the same function.
“Select”:
“Save”: Save an active
file.
These two graphs have
the same function.
“Save as”:
“Quit”:Quit the present
operation.
“View”menu has four options-“Toolbar”、”MyToolBar”、”Status
bar” and ”Original drawing”.
If you want to recover
the vertex or polygons
you once poly ,you can
click ?“View -à Original
drawing” to recover the
graph as shown in the
following figure.
Next is drawing graphs
come on.These contains
“Draw Polygons”、”Draw
Holes”、”Draw Points”.
To edit a graph with holes and constrained line:
First, click “Draw Polygons” button to draw a polygon, left-click to draw each vertex of the polygon and right-click to end drawing a closed polygon.
Here is? “Draw Polygons”.
These two graphs have the
same function.
Second, click “Draw Holes” button again to draw holes inside. Repeat the same steps above.And you can? click “Draw Holes” button again to draw constrained line, do not right-click and you will get un-closed polygon (line).
Here is “Draw Holes”.
These two graphs have the same function.
Then click “Draw point” button. And be sure to click “Draw point” button to draw ?points erery place in each polygon,and they are disorder.
Here is “Draw Points”.
These two graphs have the
same function.
After drawing polygons、points
and holes,then you can
triangulate this polygon
as shown in the following
figure.
It contains “Triangulae
Current ” and ”Triangulate
Original”.
“Triangulate Current”
is about a course of triangulation.If
you discontent the triangulation
graph,you can click ?“Triangulate
Original” to recover the
graph to original.
The two graphs have the
same role.
They are equivalent.
That is the entire course
of drawing .
If you discontent the
triangulate graph,you
can refine the preexisting
meshes by steepest descent
or conjugate gradient
method as shown in the
following figure.These
two methods make the graph
better beautiful.Their
“weight ”and “Threshold”can
set by yourself.
First ,Conjugate gradient
method: This algorithm
has a limited convergent
guality.Its convergent
speed of degressive is
more quickly than steepest
descent.
Then ,Steepest descent:
Its step of calculation
is simple,but its convergent
speed is much slow.It
contains “Steepest descent
Step By Step”、” Steepest
descent 3 step”、” Steepest
descent(change some free
vertexes to fixed vertexes)”、
Steepest descent(change
back to free vertexes).
“Steepest descent Step
By Step” is about just
decent one time or the
procedure break only run
one time .
“Steepest descent 3 step”
is about the procedure
can break when it run
3 times.Beside this,you
can set step number by
“Default step number”.
“ Steepest descent(change
some free vertexes to
fixed vertexes)”is about
when reefing the graph
,some vertexes` latitude
is mush small,so we can
use this function to change
those vertexes to fixed
vertexes,and you can use
“Min Moving distance of
free vertex” to set minimal
distance.
.If you want to ?recover
them ,you can uses “Steepest
descent(change back to
free vertexes)” to recover
them to free vertexes.
“Constrained Steepest”and
“Constrained conjugate
Gradient ”by seting “Moving
coeficient”
to limit refinging.
“Regularization Parameter
Setup”
The details of “Regularization
Parameter Setup”
The next figure is about
zoom in or zoom out graph
.Remarkably,”Zoom in”contains
“Zoom in” and “Zoom in
and scroll to the center”
.
“Zoom in” is about enlarging
a graph with a center
of the place of the mouse.
“Zoom in and scroll to
the center” is about enlarging
a graph with a center
of the graph.
In the same way “Zoom
out ” also contains “Zoom
in” and “Zoom in and scroll
to the center”,their role
are also in the same way.
If you feel the graph
is too dense to see clearly,you
can have the graph enlarged.
Click “Zoom in” button
to enlarge the graph,
The next button is “Zoom
in”button.It can enlarge
a graph.
“Zoom in”
The next button are “Zoom
out” button.It can reduce
a graph.
“Zoom out”
The proportion of zoom
in or zoom out.
The follows figure is
directed mainly at some
distinct triangles` points.
After refining preexisting
meshes, some distinct
triangles have especial
points - cuspidal points,if
you want to move them
,you can click ?“Drag”
to move the points .As
follows figure:
The next figure is about
“adjust a point`s coordinate
”.
The next figure is about
some setup.It contains
“Parameter Setup”、”Boundary”、”Regularization
Parameter Setup”.
introductory and sketches
The “Parameter Setup”contains many functions.First the common settings contains:
“Angles”: Quality mesh generation with no angles smaller than 20 degrees.
An alternate minimum angle may be specified after the ` Angles '.
“Area”: Imposes a maximum triangle area constraint.
A fixed area constraint (that applies to every triangle) may be specified after the ` Area '.
“Enclose the conver hull”:
......................................................................
“Outputs a list of edges of the triangulation”:
Outputs (to an .edge file) a list of edges of the triangulation
“Triangulates a PSLG”: A Planar Straight Line Graph (PSLG) is a collection
of vertices and segments. Segments are edges whose endpoints are vertices in the PSLG,
and whose presence in any mesh generated from the PSLG is enforced.
“Conforming Delaunay”: A conforming Delaunay triangulation (CDT) of a
PSLG is a true Delaunay triangulation in which each PSLG segment may have been
subdivided into several edges by the insertion of additional vertices,
called Steiner points. Steiner points are necessary to allow the segments
to exist in the mesh while maintaining the Delaunay property. Steiner points
are also inserted to meet constraints on the minimum angle and maximum triangle area.
“Boundary Setup”:
The details of “Boundary
Setup”
|
”
to draw an arbitrary polygon.
?”
to draw holes or walls
or reservoir as follows
graph.
”
to draw points.The points
as triangulator vertexes
later.
”
to triangulate .
”
to zoom in the graph.
”
to zoom out the graph.
” to move points.
” to save the graph.