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cleanup point transform code

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This commit is contained in:
Henry Schimke
2023-03-08 12:46:52 -06:00
parent 2b7d053646
commit 717b74fd99
10 changed files with 190 additions and 158 deletions
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37
src/common/PerspectiveTransformTestCase.rs
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@@ -27,11 +27,16 @@ use crate::point;
// public final class PerspectiveTransformTestCase extends Assert {
use super::{PerspectiveTransform, Quadrilateral};
static EPSILON: f32 = 1.0E-4f32;
static EPSILON: f32 = 1.0E-4_f32;
#[test]
fn test_square_to_quadrilateral() {
let square = Quadrilateral::new(point(2.0, 3.0), point(10.0, 3.0), point(16.0, 15.0), point(4.0,9.0));
let square = Quadrilateral::new(
point(2.0, 3.0),
point(10.0, 3.0),
point(16.0, 15.0),
point(4.0, 9.0),
);
let pt = PerspectiveTransform::squareToQuadrilateral(square);
assert_point_equals(2.0, 3.0, 0.0, 0.0, &pt);
assert_point_equals(10.0, 4.0, 1.0, 0.0, &pt);
@@ -43,10 +48,20 @@ fn test_square_to_quadrilateral() {
#[test]
fn test_quadrilateral_to_quadrilateral() {
let quad1 = Quadrilateral::new(point(2.0, 3.0), point(10.0, 4.0), point(16.0, 15.0), point(4.0, 9.0));
let quad2 = Quadrilateral::new(point(103.0, 110.0), point(300.0, 120.0), point(290.0, 270.0), point(150.0,280.0));
let pt = PerspectiveTransform::quadrilateralToQuadrilateral(quad1, quad2);
let quad1 = Quadrilateral::new(
point(2.0, 3.0),
point(10.0, 4.0),
point(16.0, 15.0),
point(4.0, 9.0),
);
let quad2 = Quadrilateral::new(
point(103.0, 110.0),
point(300.0, 120.0),
point(290.0, 270.0),
point(150.0, 280.0),
);
let pt = PerspectiveTransform::quadrilateralToQuadrilateral(quad1, quad2).expect("transform");
assert_point_equals(103.0, 110.0, 2.0, 3.0, &pt);
assert_point_equals(300.0, 120.0, 10.0, 4.0, &pt);
assert_point_equals(290.0, 270.0, 16.0, 15.0, &pt);
@@ -62,19 +77,19 @@ fn assert_point_equals(
source_y: f32,
pt: &PerspectiveTransform,
) {
let mut points = [source_x, source_y];
let mut points = [point(source_x, source_y)];
pt.transform_points_single(&mut points);
assert!(
(expected_x - points[0] < EPSILON || points[0] - expected_x < EPSILON),
(expected_x - points[0].x < EPSILON || points[0].x - expected_x < EPSILON),
"{} - {}",
expected_x,
points[0]
points[0].x
);
assert!(
(expected_y - points[1] < EPSILON || points[1] - expected_y < EPSILON),
(expected_y - points[0].y < EPSILON || points[0].y - expected_y < EPSILON),
"{} - {}",
expected_y,
points[1]
points[0].y
);
// assert_eq!( expectedX, points[0]);