GCC Code Coverage Report


Directory: ./
File: openvdb/openvdb/unittest/TestPointGroup.cc
Date: 2022-07-25 17:40:05
Exec Total Coverage
Lines: 270 270 100.0%
Functions: 10 10 100.0%
Branches: 530 2348 22.6%

Line Branch Exec Source
1 // Copyright Contributors to the OpenVDB Project
2 // SPDX-License-Identifier: MPL-2.0
3
4 #include "gtest/gtest.h"
5 #include <openvdb/points/PointGroup.h>
6 #include <openvdb/points/PointCount.h>
7 #include <openvdb/points/PointConversion.h>
8
9 #include <cstdio> // for std::remove()
10 #include <cstdlib> // for std::getenv()
11 #include <iostream>
12 #include <sstream>
13 #include <string>
14 #include <vector>
15
16 #ifdef _WIN32
17 #include <windows.h>
18 #endif
19
20 using namespace openvdb;
21 using namespace openvdb::points;
22
23 5 class TestPointGroup: public ::testing::Test
24 {
25 public:
26 5 void SetUp() override { openvdb::initialize(); }
27 5 void TearDown() override { openvdb::uninitialize(); }
28 }; // class TestPointGroup
29
30
31 ////////////////////////////////////////
32
33
34 class FirstFilter
35 {
36 public:
37 static bool initialized() { return true; }
38
39 static index::State state() { return index::PARTIAL; }
40 template <typename LeafT>
41 static index::State state(const LeafT&) { return index::PARTIAL; }
42
43 template <typename LeafT> void reset(const LeafT&) { }
44
45 template <typename IterT> bool valid(const IterT& iter) const
46 {
47 12 return *iter == 0;
48 }
49 }; // class FirstFilter
50
51
52 ////////////////////////////////////////
53
54
55 namespace {
56
57 3 bool testStringVector(std::vector<Name>& input)
58 {
59 3 return input.size() == 0;
60 }
61
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1 bool testStringVector(std::vector<Name>& input, const Name& name1)
63 {
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1 if (input.size() != 1) return false;
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1 if (input[0] != name1) return false;
66 return true;
67 }
68
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1 bool testStringVector(std::vector<Name>& input, const Name& name1, const Name& name2)
70 {
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1 if (input.size() != 2) return false;
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1 if (input[0] != name1) return false;
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1 if (input[1] != name2) return false;
74 return true;
75 }
76
77 } // namespace
78
79
80
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2 TEST_F(TestPointGroup, testDescriptor)
81 {
82 // test missing groups deletion
83
84 { // no groups, empty Descriptor
85 1 std::vector<std::string> groups;
86
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2 AttributeSet::Descriptor descriptor;
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1 deleteMissingPointGroups(groups, descriptor);
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1 EXPECT_TRUE(testStringVector(groups));
89 }
90
91 { // one group, empty Descriptor
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2 std::vector<std::string> groups{"group1"};
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2 AttributeSet::Descriptor descriptor;
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1 deleteMissingPointGroups(groups, descriptor);
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1 EXPECT_TRUE(testStringVector(groups));
96 }
97
98 { // one group, Descriptor with same group
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2 std::vector<std::string> groups{"group1"};
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2 AttributeSet::Descriptor descriptor;
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1 descriptor.setGroup("group1", 0);
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1 deleteMissingPointGroups(groups, descriptor);
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1 EXPECT_TRUE(testStringVector(groups, "group1"));
104 }
105
106 { // one group, Descriptor with different group
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2 std::vector<std::string> groups{"group1"};
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2 AttributeSet::Descriptor descriptor;
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1 descriptor.setGroup("group2", 0);
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1 deleteMissingPointGroups(groups, descriptor);
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1 EXPECT_TRUE(testStringVector(groups));
112 }
113
114 { // three groups, Descriptor with three groups, one different
115
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2 std::vector<std::string> groups{"group1", "group3", "group4"};
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2 AttributeSet::Descriptor descriptor;
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1 descriptor.setGroup("group1", 0);
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1 descriptor.setGroup("group2", 0);
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1 descriptor.setGroup("group4", 0);
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1 deleteMissingPointGroups(groups, descriptor);
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1 EXPECT_TRUE(testStringVector(groups, "group1", "group4"));
122 }
123 1 }
124
125
126 ////////////////////////////////////////
127
128
129
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2 TEST_F(TestPointGroup, testAppendDrop)
130 {
131 1 std::vector<Vec3s> positions{{1, 1, 1}, {1, 10, 1}, {10, 1, 1}, {10, 10, 1}};
132
133 const float voxelSize(1.0);
134
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1 math::Transform::Ptr transform(math::Transform::createLinearTransform(voxelSize));
135
136
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1 PointDataGrid::Ptr grid = createPointDataGrid<NullCodec, PointDataGrid>(positions, *transform);
137 PointDataTree& tree = grid->tree();
138
139 // check one leaf per point
140
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1 EXPECT_EQ(tree.leafCount(), Index32(4));
141
142 // retrieve first and last leaf attribute sets
143
144 PointDataTree::LeafCIter leafIter = tree.cbeginLeaf();
145 const AttributeSet& attributeSet = leafIter->attributeSet();
146
147 ++leafIter;
148 ++leafIter;
149 ++leafIter;
150
151 const AttributeSet& attributeSet4 = leafIter->attributeSet();
152
153 { // throw on append or drop an empty group
154
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3 EXPECT_THROW(appendGroup(tree, ""), openvdb::KeyError);
155
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3 EXPECT_THROW(dropGroup(tree, ""), openvdb::KeyError);
156 }
157
158 { // append a group
159
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1 appendGroup(tree, "test");
160
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(1));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test"));
164 }
165
166 { // append a group with non-unique name (repeat the append)
167
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1 appendGroup(tree, "test");
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(1));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test"));
172 }
173
174 { // append multiple groups
175
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2 std::vector<Name> names{"test2", "test3"};
176
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1 appendGroups(tree, names);
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(3));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test2"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test2"));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test3"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test3"));
186 }
187
188 { // append to a copy
189
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2 PointDataTree tree2(tree);
190
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2 appendGroup(tree2, "copy1");
192
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1 EXPECT_TRUE(!attributeSet.descriptor().hasGroup("copy1"));
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2 EXPECT_TRUE(tree2.beginLeaf()->attributeSet().descriptor().hasGroup("copy1"));
195 }
196
197 { // drop a group
198
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1 dropGroup(tree, "test2");
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(2));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test"));
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test3"));
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2 EXPECT_TRUE(attributeSet4.descriptor().hasGroup("test3"));
205 }
206
207 { // drop multiple groups
208
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2 std::vector<Name> names{"test", "test3"};
209
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1 dropGroups(tree, names);
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(0));
213 }
214
215 { // drop a copy
216
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1 appendGroup(tree, "copy2");
217
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1 PointDataTree tree2(tree);
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2 dropGroup(tree2, "copy2");
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("copy2"));
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1 EXPECT_TRUE(!tree2.beginLeaf()->attributeSet().descriptor().hasGroup("copy2"));
224
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2 dropGroup(tree, "copy2");
226 }
227
228 { // set group membership
229
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1 appendGroup(tree, "test");
230
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2 setGroup(tree, "test", true);
232
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1 GroupFilter filter("test", tree.cbeginLeaf()->attributeSet());
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1 EXPECT_EQ(pointCount(tree, filter), Index64(4));
235
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1 setGroup(tree, "test", false);
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1 EXPECT_EQ(pointCount(tree, filter), Index64(0));
239
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2 dropGroup(tree, "test");
241 }
242
243 { // drop all groups
244
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1 appendGroup(tree, "test");
245
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1 appendGroup(tree, "test2");
246
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(2));
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(1));
249
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1 dropGroups(tree);
251
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(0));
253
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(0));
254 }
255
256 { // check that newly added groups have empty group membership
257
258 // recreate the grid with 3 points in one leaf
259
260
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1 positions = {{1, 1, 1}, {1, 2, 1}, {2, 1, 1}};
261
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2 grid = createPointDataGrid<NullCodec, PointDataGrid>(positions, *transform);
262 PointDataTree& newTree = grid->tree();
263
264
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2 appendGroup(newTree, "test");
265
266 // test that a completely new group (with a new group attribute)
267 // has empty membership
268
269
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1 EXPECT_TRUE(newTree.cbeginLeaf());
270
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1 GroupFilter filter("test", newTree.cbeginLeaf()->attributeSet());
271
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1 EXPECT_EQ(pointCount(newTree, filter), Index64(0));
272
273 // check that membership in a group that was not created with a
274 // new attribute array is still empty.
275 // we will append a second group, set its membership, then
276 // drop it and append a new group with the same name again
277
278
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2 appendGroup(newTree, "test2");
279
280 PointDataTree::LeafIter leafIter2 = newTree.beginLeaf();
281
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1 EXPECT_TRUE(leafIter2);
282
283
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1 GroupWriteHandle test2Handle = leafIter2->groupWriteHandle("test2");
284
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1 test2Handle.set(0, true);
286
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1 test2Handle.set(2, true);
287
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1 GroupFilter filter2("test2", newTree.cbeginLeaf()->attributeSet());
289
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1 EXPECT_EQ(pointCount(newTree, filter2), Index64(2));
290
291 // drop and re-add group
292
293
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1 dropGroup(newTree, "test2");
294
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1 appendGroup(newTree, "test2");
295
296 // check that group is fully cleared and does not have previously existing data
297
298
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299 }
300
301 1 }
302
303
304
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2 TEST_F(TestPointGroup, testCompact)
305 {
306 1 std::vector<Vec3s> positions{{1, 1, 1}};
307
308 const float voxelSize(1.0);
309
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1 math::Transform::Ptr transform(math::Transform::createLinearTransform(voxelSize));
310
311
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1 PointDataGrid::Ptr grid = createPointDataGrid<NullCodec, PointDataGrid>(positions, *transform);
312 PointDataTree& tree = grid->tree();
313
314 // check one leaf
315
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1 EXPECT_EQ(tree.leafCount(), Index32(1));
316
317 // retrieve first and last leaf attribute sets
318
319 PointDataTree::LeafCIter leafIter = tree.cbeginLeaf();
320 const AttributeSet& attributeSet = leafIter->attributeSet();
321
322
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2 std::stringstream ss;
323
324 { // append nine groups
325
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9 for (int i = 0; i < 8; i++) {
326
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16 ss.str("");
327
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8 ss << "test" << i;
328
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16 appendGroup(tree, ss.str());
329 }
330
331
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(8));
332
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(1));
333
334
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2 appendGroup(tree, "test8");
335
336
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test0"));
337
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test7"));
338
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test8"));
339
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(9));
341
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(2));
342 }
343
344 { // drop first attribute then compact
345
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2 dropGroup(tree, "test5", /*compact=*/false);
346
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1 EXPECT_TRUE(!attributeSet.descriptor().hasGroup("test5"));
348
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(8));
349
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(2));
350
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1 compactGroups(tree);
352
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1 EXPECT_TRUE(!attributeSet.descriptor().hasGroup("test5"));
354
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test7"));
355
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2 EXPECT_TRUE(attributeSet.descriptor().hasGroup("test8"));
356
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(8));
357
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(1));
358 }
359
360 { // append seventeen groups, drop most of them, then compact
361
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18 for (int i = 0; i < 17; i++) {
362
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34 ss.str("");
363
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17 ss << "test" << i;
364
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34 appendGroup(tree, ss.str());
365 }
366
367
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(17));
368
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(3));
369
370 // delete all but 0, 5, 9, 15
371
372
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18 for (int i = 0; i < 17; i++) {
373
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17 if (i == 0 || i == 5 || i == 9 || i == 15) continue;
374
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26 ss.str("");
375
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13 ss << "test" << i;
376
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26 dropGroup(tree, ss.str(), /*compact=*/false);
377 }
378
379
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(4));
380
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(3));
381
382 // make a copy
383
384
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2 PointDataTree tree2(tree);
385
386 // compact - should now occupy one attribute
387
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1 compactGroups(tree);
389
390
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1 EXPECT_EQ(attributeSet.descriptor().groupMap().size(), size_t(4));
391
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1 EXPECT_EQ(attributeSet.descriptor().count(GroupAttributeArray::attributeType()), size_t(1));
392
393 // check descriptor has been deep copied
394
395
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1 EXPECT_EQ(tree2.cbeginLeaf()->attributeSet().descriptor().groupMap().size(), size_t(4));
396
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2 EXPECT_EQ(tree2.cbeginLeaf()->attributeSet().descriptor().count(GroupAttributeArray::attributeType()), size_t(3));
397 }
398 1 }
399
400
401
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2 TEST_F(TestPointGroup, testSet)
402 {
403 // four points in the same leaf
404
405 std::vector<Vec3s> positions = {
406 {1, 1, 1},
407 {1, 2, 1},
408 {2, 1, 1},
409 {2, 2, 1},
410 {100, 100, 100},
411 {100, 101, 100}
412 1 };
413
414 const float voxelSize(1.0);
415
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1 math::Transform::Ptr transform(math::Transform::createLinearTransform(voxelSize));
416
417 const PointAttributeVector<Vec3s> pointList(positions);
418
419 openvdb::tools::PointIndexGrid::Ptr pointIndexGrid =
420
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1 openvdb::tools::createPointIndexGrid<openvdb::tools::PointIndexGrid>(pointList, *transform);
421
422
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1 PointDataGrid::Ptr grid = createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform);
423 PointDataTree& tree = grid->tree();
424
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1 appendGroup(tree, "test");
426
427
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1 EXPECT_EQ(pointCount(tree), Index64(6));
428
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1 GroupFilter filter("test", tree.cbeginLeaf()->attributeSet());
429
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1 EXPECT_EQ(pointCount(tree, filter), Index64(0));
430
431 // copy tree for descriptor sharing test
432
433
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2 PointDataTree tree2(tree);
434
435
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1 std::vector<short> membership{1, 0, 1, 1, 0, 1};
436
437 // test add to group
438
439
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1 setGroup(tree, "test", true);
440
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1 EXPECT_EQ(pointCount(tree, filter), Index64(6));
441
442 // test nothing is done if the index tree contains no valid indices
443
444
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1 tools::PointIndexGrid::Ptr tmpIndexGrid = tools::PointIndexGrid::create();
445
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2 setGroup(tree, tmpIndexGrid->tree(), {0,0,0,0,0,0}, "test", /*remove*/true);
446
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1 EXPECT_EQ(Index64(6), pointCount(tree, filter));
447
448 // test throw on out of range index
449
450
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1 auto indexLeaf = tmpIndexGrid->tree().touchLeaf(tree.cbeginLeaf()->origin());
451
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1 indexLeaf->indices().emplace_back(membership.size());
452
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3 EXPECT_THROW(setGroup(tree, tmpIndexGrid->tree(), membership, "test"), IndexError);
453
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1 EXPECT_EQ(Index64(6), pointCount(tree, filter));
454
455 // test remove flag
456
457
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1 setGroup(tree, pointIndexGrid->tree(), membership, "test", /*remove*/false);
458
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1 EXPECT_EQ(Index64(6), pointCount(tree, filter));
459
460
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1 setGroup(tree, pointIndexGrid->tree(), membership, "test", /*remove*/true);
461
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1 EXPECT_EQ(Index64(4), pointCount(tree, filter));
462
463
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2 setGroup(tree, pointIndexGrid->tree(), {0,1,0,0,1,0}, "test", /*remove*/false);
464
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1 EXPECT_EQ(Index64(6), pointCount(tree, filter));
465
466
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1 setGroup(tree, pointIndexGrid->tree(), membership, "test", /*remove*/true);
467
468 // check that descriptor remains shared
469
470
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2 appendGroup(tree2, "copy1");
471
472
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1 EXPECT_TRUE(!tree.cbeginLeaf()->attributeSet().descriptor().hasGroup("copy1"));
473
474
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1 dropGroup(tree2, "copy1");
475
476
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1 EXPECT_EQ(pointCount(tree), Index64(6));
477
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1 GroupFilter filter2("test", tree.cbeginLeaf()->attributeSet());
478
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1 EXPECT_EQ(pointCount(tree, filter2), Index64(4));
479
480 { // IO
481 // setup temp directory
482
483 std::string tempDir;
484
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1 if (const char* dir = std::getenv("TMPDIR")) tempDir = dir;
485 #ifdef _WIN32
486 if (tempDir.empty()) {
487 char tempDirBuffer[MAX_PATH+1];
488 int tempDirLen = GetTempPath(MAX_PATH+1, tempDirBuffer);
489 EXPECT_TRUE(tempDirLen > 0 && tempDirLen <= MAX_PATH);
490 tempDir = tempDirBuffer;
491 }
492 #else
493
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1 if (tempDir.empty()) tempDir = P_tmpdir;
494 #endif
495
496 std::string filename;
497
498 // write out grid to a temp file
499 {
500
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1 filename = tempDir + "/openvdb_test_point_load";
501
502
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2 io::File fileOut(filename);
503
504
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2 GridCPtrVec grids{grid};
505
506 1 fileOut.write(grids);
507 }
508
509 // read test groups
510 {
511
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2 io::File fileIn(filename);
512
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1 fileIn.open();
513
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1 GridPtrVecPtr grids = fileIn.getGrids();
515
516
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1 fileIn.close();
517
518
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1 EXPECT_EQ(grids->size(), size_t(1));
519
520
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1 PointDataGrid::Ptr inputGrid = GridBase::grid<PointDataGrid>((*grids)[0]);
521 PointDataTree& treex = inputGrid->tree();
522
523
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1 EXPECT_TRUE(treex.cbeginLeaf());
524
525
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1 const PointDataGrid::TreeType::LeafNodeType& leaf = *treex.cbeginLeaf();
526
527 const AttributeSet::Descriptor& descriptor = leaf.attributeSet().descriptor();
528
529
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2 EXPECT_TRUE(descriptor.hasGroup("test"));
530
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1 EXPECT_EQ(descriptor.groupMap().size(), size_t(1));
531
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1 EXPECT_EQ(pointCount(treex), Index64(6));
533
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1 GroupFilter filter3("test", leaf.attributeSet());
534
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1 EXPECT_EQ(pointCount(treex, filter3), Index64(4));
535 }
536 1 std::remove(filename.c_str());
537 }
538 1 }
539
540
541
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1 TEST_F(TestPointGroup, testFilter)
542 {
543 const float voxelSize(1.0);
544 1 math::Transform::Ptr transform(math::Transform::createLinearTransform(voxelSize));
545
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1 PointDataGrid::Ptr grid;
546
547 { // four points in the same leaf
548 std::vector<Vec3s> positions = {
549 {1, 1, 1},
550 {1, 2, 1},
551 {2, 1, 1},
552 {2, 2, 1},
553 {100, 100, 100},
554 {100, 101, 100}
555
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1 };
556
557 const PointAttributeVector<Vec3s> pointList(positions);
558
559 openvdb::tools::PointIndexGrid::Ptr pointIndexGrid =
560
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1 openvdb::tools::createPointIndexGrid<openvdb::tools::PointIndexGrid>(pointList, *transform);
561
562
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1 grid = createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform);
563 }
564
565 PointDataTree& tree = grid->tree();
566
567 { // first point filter
568
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1 appendGroup(tree, "first");
569
570
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1 EXPECT_EQ(pointCount(tree), Index64(6));
571
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1 GroupFilter filter("first", tree.cbeginLeaf()->attributeSet());
572
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1 EXPECT_EQ(pointCount(tree, filter), Index64(0));
573
574 FirstFilter filter2;
575
576
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2 setGroupByFilter<PointDataTree, FirstFilter>(tree, "first", filter2);
577
578 auto iter = tree.cbeginLeaf();
579
580
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3 for ( ; iter; ++iter) {
581
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2 EXPECT_EQ(iter->groupPointCount("first"), Index64(1));
582 }
583
584
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1 GroupFilter filter3("first", tree.cbeginLeaf()->attributeSet());
585
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1 EXPECT_EQ(pointCount(tree, filter3), Index64(2));
586 }
587
588 1 const openvdb::BBoxd bbox(openvdb::Vec3d(0, 1.5, 0), openvdb::Vec3d(101, 100.5, 101));
589
590 { // bbox filter
591
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1 appendGroup(tree, "bbox");
592
593
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1 EXPECT_EQ(pointCount(tree), Index64(6));
594
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1 GroupFilter filter("bbox", tree.cbeginLeaf()->attributeSet());
595
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1 EXPECT_EQ(pointCount(tree, filter), Index64(0));
596
597 BBoxFilter filter2(*transform, bbox);
598
599
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2 setGroupByFilter<PointDataTree, BBoxFilter>(tree, "bbox", filter2);
600
601
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1 GroupFilter filter3("bbox", tree.cbeginLeaf()->attributeSet());
602
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1 EXPECT_EQ(pointCount(tree, filter3), Index64(3));
603 }
604
605 { // first point filter and bbox filter (intersection of the above two filters)
606
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1 appendGroup(tree, "first_bbox");
607
608
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1 EXPECT_EQ(pointCount(tree), Index64(6));
609
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1 GroupFilter filter("first_bbox", tree.cbeginLeaf()->attributeSet());
610
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1 EXPECT_EQ(pointCount(tree, filter), Index64(0));
611
612 using FirstBBoxFilter = BinaryFilter<FirstFilter, BBoxFilter>;
613
614 FirstFilter firstFilter;
615 BBoxFilter bboxFilter(*transform, bbox);
616 FirstBBoxFilter filter2(firstFilter, bboxFilter);
617
618
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2 setGroupByFilter<PointDataTree, FirstBBoxFilter>(tree, "first_bbox", filter2);
619
620
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1 GroupFilter filter3("first_bbox", tree.cbeginLeaf()->attributeSet());
621
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1 EXPECT_EQ(pointCount(tree, filter3), Index64(1));
622
623 std::vector<Vec3f> positions;
624
625
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3 for (auto iter = tree.cbeginLeaf(); iter; ++iter) {
626
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4 GroupFilter filterx("first_bbox", iter->attributeSet());
627 auto filterIndexIter = iter->beginIndexOn(filterx);
628
629
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4 auto handle = AttributeHandle<Vec3f>::create(iter->attributeArray("P"));
630
631
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3 for ( ; filterIndexIter; ++filterIndexIter) {
632
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1 const openvdb::Coord ijk = filterIndexIter.getCoord();
633
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2 positions.push_back(handle->get(*filterIndexIter) + ijk.asVec3d());
634 }
635 }
636
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1 EXPECT_EQ(positions.size(), size_t(1));
638
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1 EXPECT_EQ(positions[0], Vec3f(100, 100, 100));
639 }
640
641 { // add 1000 points in three leafs (positions aren't important)
642
643
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1 std::vector<Vec3s> positions(1000, {1, 1, 1});
644
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1 positions.insert(positions.end(), 1000, {1, 1, 9});
645
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1 positions.insert(positions.end(), 1000, {9, 9, 9});
646
647 const PointAttributeVector<Vec3s> pointList(positions);
648
649 openvdb::tools::PointIndexGrid::Ptr pointIndexGrid =
650
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1 openvdb::tools::createPointIndexGrid<openvdb::tools::PointIndexGrid>(pointList, *transform);
651
652
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2 grid = createPointDataGrid<NullCodec, PointDataGrid>(*pointIndexGrid, pointList, *transform);
653
654 PointDataTree& newTree = grid->tree();
655
656
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1 EXPECT_EQ(pointCount(newTree), Index64(3000));
657
658 // random - maximum
659
660
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1 appendGroup(newTree, "random_maximum");
661
662 1 const Index64 target = 1001;
663
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2 setGroupByRandomTarget(newTree, "random_maximum", target);
665
666
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1 GroupFilter filter("random_maximum", newTree.cbeginLeaf()->attributeSet());
667
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1 EXPECT_EQ(pointCount(newTree, filter), target);
668
669 // random - percentage
670
671
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1 appendGroup(newTree, "random_percentage");
672
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2 setGroupByRandomPercentage(newTree, "random_percentage", 33.333333f);
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1 GroupFilter filter2("random_percentage", newTree.cbeginLeaf()->attributeSet());
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1 EXPECT_EQ(pointCount(newTree, filter2), Index64(1000));
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