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
38
39
40
41
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.rs.vr.engine;
import android.util.Log;
import java.io.FileReader;
import java.io.LineNumberReader;
import java.text.DecimalFormat;
import java.util.Arrays;
/**
* Simple representation triangulated surface
*/
public class TriData {
private static final String LOGTAG = "TriData";
protected float[] mVert;
protected int[] mIndex;
public TriData() {
}
public void print() {
class Fmt extends DecimalFormat {
public Fmt() {
super(" ##0.000");
}
public String f(double number) {
String ret = " "+super.format(number);
return ret.substring(ret.length() - 7);
}
}
Fmt df = new Fmt();
for (int i = 0; i < mVert.length; i += 3) {
String s = (i / 3 + "[ " + df.f(mVert[i]));
s += (", " + df.f(mVert[i + 1]));
Log.v(LOGTAG, s + ", " + df.f(mVert[i + 2]) + "]");
}
}
public TriData(TriData clone) {
mVert = Arrays.copyOf(clone.mVert, clone.mVert.length);
mIndex = Arrays.copyOf(clone.mIndex, clone.mIndex.length);
}
public void scale(float[] s) {
for (int i = 0; i < mVert.length; i += 3) {
mVert[i] *= s[0];
mVert[i + 1] *= s[1];
mVert[i + 2] *= s[2];
}
}
public void scale(double[] s) {
for (int i = 0; i < mVert.length; i += 3) {
mVert[i] *= s[0];
mVert[i + 1] *= s[1];
mVert[i + 2] *= s[2];
}
}
public void transform(Matrix m) {
for (int i = 0; i < mVert.length; i += 3) {
m.mult3(mVert, i, mVert, i);
}
}
public void transform(Matrix m, TriData out) {
for (int i = 0; i < mVert.length; i += 3) {
m.mult3(mVert, i, out.mVert, i);
}
}
/**
* Read some simple triangle format used in testing
* @param fileName
*/
public void read(String fileName) {
try {
FileReader fr = new FileReader(fileName);
LineNumberReader lnr = new LineNumberReader(fr);
int num_verts = Integer.parseInt(lnr.readLine());
Log.v(LOGTAG, "verts =" + num_verts);
mVert = new float[num_verts * 3];
int k = 0;
for (int i = 0; i < num_verts; i++) {
String[] s = lnr.readLine().split("\\s");
for (int j = 0; j < s.length; j++) {
mVert[k++] = Float.parseFloat(s[j]);
}
}
int num_tri = Integer.parseInt(lnr.readLine());
Log.v(LOGTAG, "tri =" + num_tri);
mIndex = new int[3 * num_tri];
k = 0;
for (int i = 0; i < num_tri; i++) {
String[] s = lnr.readLine().split("\\s");
for (int j = 0; j < s.length; j++) {
mIndex[k++] = Integer.parseInt(s[j]);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
|
