2D Primitives

OpenSCAD Built-in methods

1 circle -new element created

a 2D drawing primitive that creates a circle that may be extruded to create other 3D structures. e.g $scad->circle("circle",{r=>5});

2 square -new element created

a 2D drawing primitive that creates a rectangle that may be extruded to create other 3D structures. e.g $scad->square("square",[10,10]);. Rectangles may be created using the same method, but squares may also be created using $scad->square("square",5);

3 polygon new element created

a 2D drawing primitive that creates a polygon that may be extruded to create other 3D structures. The easiest way to do it in Perl is to create an arrayref of points. and pass that as a parameter. an example of this is the gear.pl in Examples. The linear_extrude option below also provides an example using SCAD variables. A simple solution making a filled line chart is shown below :-

# create a Filled Line Chart from values
my @values=(10,30,15,40,35,45,40,35,10);
my $separation =10; my $start=[0,0];my $count=0;

# starting corner of chart
my $points=[$start];
# add points to be plotted as a line graph                                   
push @$points, [$separation*$count++,$_] foreach @values;
# add end corner
push @$points, [$separation*(--$count),$start->[1]];

my $chart=new SCAD;     
$chart->polygon("chart",$points)
   ->build("

Extras in CAD::OpenSCAD and associated modules