translate_test.go 1.83 KB
Newer Older
Jonny Schäfer's avatar
Jonny Schäfer committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
package radolan

import (
	"math"
	"testing"
)

func TestTranslate(t *testing.T) {
	equal := func(a, b float64) bool {
		epsilon := 0.1 // inaccuracy by 100 meters
		return math.Abs(a-b) < epsilon
	}

	nationalGridPG := [][]float64{
		[]float64{54.6547, 01.9178, 0.0, 0.0},
		[]float64{54.8110, 15.8706, 1.0, 0.0},
		[]float64{51.0000, 09.0000, 0.5, 0.5},
		[]float64{46.8695, 03.4921, 0.0, 1.0},
		[]float64{46.9894, 14.7218, 1.0, 1.0},
	}

	nationalGrid := [][]float64{
		[]float64{54.5877, 02.0715, 0.0, 0.0},
		[]float64{54.7405, 15.7208, 1.0, 0.0},
		[]float64{51.0000, 09.0000, 0.5, 0.5},
		[]float64{46.9526, 03.5889, 0.0, 1.0},
		[]float64{47.0705, 14.6209, 1.0, 1.0},
	}

	extendedGrid := [][]float64{
		[]float64{56.5423, -0.8654, 0.0, 0.0},
		[]float64{56.4505, 21.6986, 1.0, 0.0},
		[]float64{51.0000, 09.0000, 3 / 7.0, 7 / 15.0},
		[]float64{43.9336, 02.3419, 0.0, 1.0},
		[]float64{43.8736, 18.2536, 1.0, 1.0},
	}

Jonny Schäfer's avatar
Jonny Schäfer committed
38
39
40
41
	dummyPG := NewDummy("PG", 460, 460)
	dummyFZ := NewDummy("FZ", 450, 450)
	dummyRX := NewDummy("RX", 900, 900)
	dummyEX := NewDummy("EX", 1400, 1500)
Jonny Schäfer's avatar
Jonny Schäfer committed
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

	testcases := []struct {
		comp *Composite
		edge [][]float64
	}{
		{dummyPG, nationalGridPG},
		{dummyFZ, nationalGrid},
		{dummyRX, nationalGrid},
		{dummyEX, extendedGrid},
	}

	for _, test := range testcases {
		t.Logf("dummy%s: Rx = %f; Ry = %f\n",
			test.comp.Product, test.comp.Rx, test.comp.Ry)
		t.Logf("dummy%s: offx = %f; offy = %f\n",
			test.comp.Product, test.comp.offx, test.comp.offy)

		for _, edge := range test.edge {
			// result
			rx, ry := test.comp.Translate(edge[0], edge[1])
			//expected
			ex := float64(test.comp.Dx-1) * edge[2]
			ey := float64(test.comp.Dy-1) * edge[3]

			if !equal(rx, ex) || !equal(ry, ey) {
				t.Errorf("dummy%s.Translate(%#v, %#v) = (%#v, %#v); expected: (%#v, %#v)",
					test.comp.Product, edge[0], edge[1], rx, ry, ex, ey)
			}
		}
	}
}