Mercurial > gemma

annotate pkg/octree/plane2d_test.go @ 3678:8f58851927c0

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client: make layer factory only return new layer config for individual maps instead of each time it is invoked. The purpose of the factory was to support multiple maps with individual layers. But returning a new config each time it is invoked leads to bugs that rely on the layer's state. Now this factory reuses the same objects it created before, per map.
author Markus Kottlaender <markus@intevation.de>
date Mon, 17 Jun 2019 17:31:35 +0200
parents a244b18cb916
children
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1017
a244b18cb916 Added GNU Affero General Public License.
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2018 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
778
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14 package octree
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15
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16 import (
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17 "math"
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18 "testing"
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19 )
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20
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21 func TestIntersection(t *testing.T) {
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22
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23 table := []struct {
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24 a [4]float64
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25 b [4]float64
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26 intersects bool
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27 x, y float64
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28 }{
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29 {[4]float64{-1, -1, 1, 1}, [4]float64{-1, 1, 1, -1}, true, 0, 0},
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30 {[4]float64{0, 0, 1, 1}, [4]float64{0, 1, 1, 0}, true, 0.5, 0.5},
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31 {[4]float64{0, 0, 1, 0}, [4]float64{0, 1, 1, 1}, false, 0, 0},
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32 }
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33
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34 for _, e := range table {
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35 p1 := NewPlane2D(e.a[0], e.a[1], e.a[2], e.a[3])
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36 p2 := NewPlane2D(e.b[0], e.b[1], e.b[2], e.b[3])
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37 x, y, intersects := p1.Intersection(p2)
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38 if intersects != e.intersects {
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39 t.Fatalf("Have %t want %t\n", intersects, e.intersects)
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40 }
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41 if e.intersects {
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42 if math.Abs(e.x-x) > epsPlane || math.Abs(e.y-y) > epsPlane {
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43 t.Fatalf("Have (%f, %f)t want (%f, %f)\n", x, y, e.x, e.y)
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44 }
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45 }
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46 }
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47 }