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{alias:poll}
h2. Name

*poll* — Polygon display of cells with lines.

h2. Syntax
{panel:|borderStyle=solid|borderWidth=1|bgColor=#FFFFAA}

*poll* \[*liw*] \[*las*] \[*all*] \[*sav*] 

{panel}

h2. Description

Draw cell structures with lines. 

h2. Arguments

*liw* _linewidth_ 
{indent}Display with line width _linewidth_.{indent} 
*las* 
{indent}Display also the last line in the cell connecting it back to the first point.{indent} 
*all* 
{indent}Use to display interior cells that are normally not visisble in an unstructured grid.{indent} 
*sav* 
{indent}Save the diplayed version as active data.{indent}

h2. Examples

h3. Ex.1: Mapping grid and draw lines

{noformat:|borderWidth=1|bgColor=#eeeeee}
        z                        ;# Erase screen
        win demo                 ;# Get demo window (450000 460000 6450000 6460000 1000 4000)
        spe bgc whi              ;# Specify background color to white
        mak ran 11               ;# Make 11 random points
        grp 22 22                ;# Make grid
        map                      ;# Map the grid
        sub 5                    ;# Subtract to get a good display           
        poll 2                   ;# Display lines in grid 
{noformat}

The above example produces this image.

!att:_img_ref^cmd_poll.png!
_Map and lines in grid_

h3. Ex.12: Display line structure

{noformat:|borderWidth=1|bgColor=#eeeeee}
win 450000 460000 6450000 6460000 2500 4500  ;# set a window
mak ran 55                                   ;# make 55 random points
poi 3                                        ;# Display the points, size 3
trg                                          ;# triangulate to a surface
map opa .5                                   ;# map the surface with opacity
col blu                                      ;# set color to blue
poll liw 3                                   ;# Use poll to display structure
{noformat}

!att:_img_ref^poll.png!
_The blue lines are displayed by *poll*_

h2. See also

[map], [dis], [pol]