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class REFERENCE_POINTS
insert PLATFORM
create {CALIBRATION}
make
feature {}
default_capacity: INTEGER is 10
make(nb_parameters_: INTEGER) is
local
i: INTEGER
tmp: FAST_ARRAY[INTEGER]
do
create x_target_points.with_capacity(default_capacity)
create y_target_points.with_capacity(default_capacity)
create x_measure_points.with_capacity(default_capacity)
create y_measure_points.with_capacity(default_capacity)
from
nb_parameters := nb_parameters_
create parameters.with_capacity(nb_parameters)
i := 0
until
i >= nb_parameters
loop
create tmp.with_capacity(default_capacity)
parameters.add_last(tmp)
i := i + 1
end
ensure
nb_parameters = nb_parameters_
end
feature {ANY}
add_point(a_x_target, a_y_target: INTEGER; a_x_measure, a_y_measure: INTEGER; parameters_values: FAST_ARRAY[INTEGER]) is
require
parameters_values.count = nb_parameters
local
i: INTEGER
do
x_target_points.add_last(a_x_target)
y_target_points.add_last(a_y_target)
x_measure_points.add_last(a_x_measure)
y_measure_points.add_last(a_y_measure)
from
i := parameters.lower
until
i > parameters.upper
loop
parameters.item(i).add_last(parameters_values.item(i))
i := i + 1
end
ensure
count = old count + 1
end
count: INTEGER is
do
Result := x_target_points.count
end
x_target(point: INTEGER): INTEGER is
require
point.in_range(0, count - 1)
do
Result := x_target_points.item(point)
end
y_target(point: INTEGER): INTEGER is
require
point.in_range(0, count - 1)
do
Result := y_target_points.item(point)
end
x_measure(point: INTEGER): INTEGER is
require
point.in_range(0, count - 1)
do
Result := x_measure_points.item(point)
end
y_measure(point: INTEGER): INTEGER is
require
point.in_range(0, count - 1)
do
Result := y_measure_points.item(point)
end
parameter_value(point, param: INTEGER): INTEGER is
require
point.in_range(0, count - 1)
param.in_range(0, nb_parameters - 1)
do
Result := parameters.item(param).item(point)
end
find_best_pair_for(x, y: INTEGER) is
-- Find the two nearest points for (x, y) in device
-- coordinates, trying as much as possible to get one point
-- on each side.
--
-- Note: The result can be the same point twice
local
d1, d2, d_min, tmp: INTEGER_64
p1, p2: INTEGER
i1, i2: INTEGER
x1, y1, x2, y2: INTEGER
do
-- from
-- i1 := x_device_points.upper
-- d_min := Maximum_integer_64
-- until
-- i1 < x_device_points.lower
-- loop
-- x1 := x_device_points.item(i1)
-- d1 := x1 - x
-- d1 := d1 * d1
-- y1 := y_device_points.item(i1)
-- tmp := y1 - y
-- d1 := d1 + tmp * tmp
-- if d1 < d_min then
-- from
-- i2 := i1 - 1
-- until
-- i2 < x_device_points.lower
-- loop
-- x2 := x_device_points.item(i2)
-- y2 := y_device_points.item(i2)
-- if ((x1 < x) xor (x2 < x)) and then
-- ((y1 < y) xor (y2 < y)) then
-- d2 := x2 - x
-- tmp := y2 - y
-- d2 := d2 * d2 + tmp * tmp + d1
-- if d2 < d_min then
-- d_min := d2
-- p1 := i1
-- p2 := i2
-- end
-- end
-- i2 := i2 - 1
-- end
-- end
-- i1 := i1 - 1
-- end
-- *** le cas où on ne peut pas trouver un point de chaque
-- coté n'est pas géré
-- *** a la fin, il faudrait renseigner last_*
end
-- last_point1_x, last_point1_y: INTEGER
-- -- Answer point for `find_best_pair_for'
-- last_point2_x, last_point2_y: INTEGER
-- -- Answer point for `find_best_pair_for'
feature {}
nb_parameters: INTEGER
x_target_points, y_target_points: FAST_ARRAY[INTEGER]
-- in device coordinates
x_measure_points, y_measure_points: FAST_ARRAY[INTEGER]
parameters: FAST_ARRAY[FAST_ARRAY[INTEGER]]
invariant
x_target_points.count = count
y_target_points.count = count
x_measure_points.count = count
y_measure_points.count = count
parameters.count = nb_parameters
end
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