Author | Manuela Ruiz (mruiz@lcc.uma.es) |
Class that represents a 3D point
returns | a Point object identical to this |
# File lib/geometry.rb, line 195 195: def clone() 196: return Point.new(@x, @y, @z) 197: end
another_point | a Point object |
returns | the distance between this point and another_point |
# File lib/geometry.rb, line 175 175: def distance(another_point) 176: return Math.sqrt((@x - another_point.x)**2 + (@y - another_point.y)**2) 177: end
line_descriptor | a LineDescriptor object |
a | a Point object of the line described by line_descriptor |
b | a Point object of the line described by line_descriptor, distinct from a |
returns | the point in the line_descriptor that is the ortogonal projection of this point on the line described by line_descriptor |
# File lib/geometry.rb, line 184 184: def project_to_line(line_descriptor, a, b) 185: r = ((a.y - @y)*(a.y - b.y) - (a.x - @x)*(b.x - a.x)).quo(Math.sqrt((b.x - a.x)**2 + (b.y - a.y)**2)**2) 186: 187: px = a.x + r*(b.x - a.x) 188: py = a.y + r*(b.y - a.y) 189: 190: return Point.new(px, py, 0) 191: 192: end
Disabled; run with --debug to generate this.
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