This example demonstrates the use of the X (intersect) and ON (projection) operators. A triangle with its projection lines is drawn, showing the intersection of the three projection lines trough one point. Again, the coordinates of a, b and c should be judiciously chosen to fit the screen.
The resulting picture looks like:
(315,220)
(010,030)(1,0)240
(250,030)(-1,3)060
(010,030)(1,1)180
(010,030)A
(250,030)B
(190,210)C
(100,120)
(220,120)
(130,030)
(010,030)(3,1)216
(226,101)PA
(250,030)(-1,1)120
(130,150)PB
(190,210)(0,-1)180
(190,030)PC
(190,090)X
(010,010)X = ( 3.700000e+02, 2.800000e+02)
Further examples are included with the distributed software.