maingridviewtest.html

Delaunay三角形的网格剖分程序

<TITLE>COG 2.1: Looking at a grid</TITLE>

 <P>See also

<UL>
<LI> <A HREF="mainviewgeomtest.html">viewing a geometry</A>
<LI> <A HREF="wzwindow.html">general help for the viewer</A>
<LI> <A HREF="wzgridview.html">grid-specific help for the viewer</A>
</UL>

<H1>COG 2.1: Viewing a grid</H1>

 <P>Let's consider now how to use the COG grid viewer.
Let's assume you have Open GL on your machine and no
<A HREF="install.html">installation problems</A>.

 <P>Now, let's at first read a grid from a file:

<PRE>
#include "<A HREF="coglib.hxx">cog/coglib.hxx</A>"
int main(int argc, char** argv)
{
  wzgrid grid;
  if(argc&gt;1)  grid = new wzGrid(argv[1]);
  else           grid = new wzGrid("test.sg");
</PRE>

 <P>To view this grid, make

<PRE>
  wzView(grid);
}
</PRE>

 <P>I recommend to rename the resulting file:

 <P><B>&gt; cog main view</B>
 <BR><B>&gt; mv test view</B>

 <P>Then you can use it to look at a grid in simplex grid format with

 <P><B>&gt; view xyz.sg</B>


<H3>Known Bugs</H3>

 <P>If you close the window, an X error is received.  This does not
seem to do anything wrong.