AXIS_SIZE = 20;
EXTRA_PIXELS = 25;

function drawplot() {

plot_w= 300 ;
plot_h= 300 ;
var paper = Raphael(10, 10, plot_w + EXTRA_PIXELS, plot_h + EXTRA_PIXELS);


axis = drawAxis(paper,  300 ,  300 , [], [], " ", [-2.5,2.5], [-2.5,2.5],  2 , " black ", [0], [0], [0], [0] );

pts_x = [-1.416954,0.8474927,-0.199293,0.5950281,-1.204577,-0.9242918,-0.8243715,0.5102639,0.08360268,-0.3544242,-0.914154,-0.2672422,-0.6274255,-0.1498550,-0.0242387,-1.509988,-0.8185925,2.252502,0.2060311,0.450055,-1.482950,-0.1886706,-0.6052332,-0.3592731,0.1869904,0.2423133,-0.6385686,0.4803431,-0.6704424,-2.493593];
pts_y = [0.5651071,-1.309810,-0.4207336,-0.06906835,0.8731053,-1.078876,-1.036779,1.276314,-1.825583,-1.664244,-1.268059,0.6776233,0.5397475,0.6655123,-1.868505,1.249106,0.3996958,-1.471662,-0.4863815,0.3285491,-0.5104941,1.314096,-0.5138625,-0.2273016,-1.901565,-0.9551787,-1.238768,-0.6945994,0.3674334,0.4003833];
pts_z = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1];


pts = drawPoints(paper, 300, 300, pts_x, pts_y, pts_z, [-2.5,2.5], [-2.5,2.5], " black ");


}