*;
/*irisvrml.sas - make a vrml file from SAS x y z data */
/* Larry Hoyle, IPPBR, University of Kansas */
/* l-hoyle@ukans.edu */
/* use the Fischer Iris data from candiex.sas */
/* use the angle computation from Friendly, M. */
/* SAS System for Statistical Graphics */
proc format;
value specname
1='SETOSA '
2='VERSICOLOR'
3='VIRGINICA ';
value specchar
1='S'
2='O'
3='V';
run;
data iris;
title 'Fisher (1936) Iris Data';
input sepallen sepalwid petallen petalwid species @@;
format species specname.;
label sepallen='Sepal Length in mm.'
sepalwid='Sepal Width in mm.'
petallen='Petal Length in mm.'
petalwid='Petal Width in mm.';
cards;
50 33 14 02 1 64 28 56 22 3 65 28 46 15 2 67 31 56 24 3
63 28 51 15 3 46 34 14 03 1 69 31 51 23 3 62 22 45 15 2
59 32 48 18 2 46 36 10 02 1 61 30 46 14 2 60 27 51 16 2
65 30 52 20 3 56 25 39 11 2 65 30 55 18 3 58 27 51 19 3
68 32 59 23 3 51 33 17 05 1 57 28 45 13 2 62 34 54 23 3
77 38 67 22 3 63 33 47 16 2 67 33 57 25 3 76 30 66 21 3
49 25 45 17 3 55 35 13 02 1 67 30 52 23 3 70 32 47 14 2
64 32 45 15 2 61 28 40 13 2 48 31 16 02 1 59 30 51 18 3
55 24 38 11 2 63 25 50 19 3 64 32 53 23 3 52 34 14 02 1
49 36 14 01 1 54 30 45 15 2 79 38 64 20 3 44 32 13 02 1
67 33 57 21 3 50 35 16 06 1 58 26 40 12 2 44 30 13 02 1
77 28 67 20 3 63 27 49 18 3 47 32 16 02 1 55 26 44 12 2
50 23 33 10 2 72 32 60 18 3 48 30 14 03 1 51 38 16 02 1
61 30 49 18 3 48 34 19 02 1 50 30 16 02 1 50 32 12 02 1
61 26 56 14 3 64 28 56 21 3 43 30 11 01 1 58 40 12 02 1
51 38 19 04 1 67 31 44 14 2 62 28 48 18 3 49 30 14 02 1
51 35 14 02 1 56 30 45 15 2 58 27 41 10 2 50 34 16 04 1
46 32 14 02 1 60 29 45 15 2 57 26 35 10 2 57 44 15 04 1
50 36 14 02 1 77 30 61 23 3 63 34 56 24 3 58 27 51 19 3
57 29 42 13 2 72 30 58 16 3 54 34 15 04 1 52 41 15 01 1
71 30 59 21 3 64 31 55 18 3 60 30 48 18 3 63 29 56 18 3
49 24 33 10 2 56 27 42 13 2 57 30 42 12 2 55 42 14 02 1
49 31 15 02 1 77 26 69 23 3 60 22 50 15 3 54 39 17 04 1
66 29 46 13 2 52 27 39 14 2 60 34 45 16 2 50 34 15 02 1
44 29 14 02 1 50 20 35 10 2 55 24 37 10 2 58 27 39 12 2
47 32 13 02 1 46 31 15 02 1 69 32 57 23 3 62 29 43 13 2
74 28 61 19 3 59 30 42 15 2 51 34 15 02 1 50 35 13 03 1
56 28 49 20 3 60 22 40 10 2 73 29 63 18 3 67 25 58 18 3
49 31 15 01 1 67 31 47 15 2 63 23 44 13 2 54 37 15 02 1
56 30 41 13 2 63 25 49 15 2 61 28 47 12 2 64 29 43 13 2
51 25 30 11 2 57 28 41 13 2 65 30 58 22 3 69 31 54 21 3
54 39 13 04 1 51 35 14 03 1 72 36 61 25 3 65 32 51 20 3
61 29 47 14 2 56 29 36 13 2 69 31 49 15 2 64 27 53 19 3
68 30 55 21 3 55 25 40 13 2 48 34 16 02 1 48 30 14 01 1
45 23 13 03 1 57 25 50 20 3 57 38 17 03 1 51 38 15 03 1
55 23 40 13 2 66 30 44 14 2 68 28 48 14 2 54 34 17 02 1
51 37 15 04 1 52 35 15 02 1 58 28 51 24 3 67 30 50 17 2
63 33 60 25 3 53 37 15 02 1
;
proc means data=iris min max;
var petalwid petallen sepalwid sepallen ;
output out=range min=pwmin plmin swmin slmin
max=pwmax plmax swmax slmax;
data xyz;
set iris;
if _n_=1 then set range;
p1 = (petalwid-pwmin) / (pwmax - pwmin);
x=petallen;
y=sepallen;
z=sepalwid;
angle = 135 * p1 * arcos(-1)/180;
xg = x + 6 * cos(angle);
yg = y + 6 * sin(angle);
data _null_;
filename irvrml 'c:\ddrive\sugi21\vrml\iris.wrl';
file irvrml;
set xyz nobs=n end=last;
if _n_=1 then do;
put '#VRML V1.0 ascii';
put 'Separator {';
put ' DirectionalLight {';
put ' direction 0 0 1 # Light from viewer into scene';
put ' }';
put ' PerspectiveCamera {';
camx = (plmax - plmin) / 2;
camy = (slmax - slmin) / 2;
camz = ((swmax - swmin) / 2) - (3 * (swmax - swmin)) ;
fd = swmax - swmin;
put ' position 'camx camy camz;
put ' orientation 0 0.95 -0.15 3.14';
put ' focalDistance ' fd;
put ' heightAngle 0.755';
put ' }';
end; /* _n_=1 */
/* output the point as a cone */
put '# cone '_n_;
put ' Separator {';
put ' Material {';
put ' diffuseColor '@;
select (species);
when (1) put '1 0 0';
when (2) put '0 1 0';
when (3) put '0 0 1';
otherwise put '0.5 0.5 0.5';
end; /* select */
put ' }';
put ' Transform {';
put ' translation ' x y z;
put ' rotation 0 0 1 ' angle;
put ' }';
put ' Cone {';
put ' bottomRadius 0.6';
put ' height 3';
put ' }';
put ' } # separator for cone';
put '# end cone '_n_;
put '# ';
if last then do;
put '}';
end; /* do; */
run;
*;