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fltEyepoint.cxx
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file fltEyepoint.cxx
10 * @author drose
11 * @date 2000-08-26
12 */
13
14#include "fltEyepoint.h"
15#include "fltRecordReader.h"
16#include "fltRecordWriter.h"
17
18/**
19 *
20 */
21FltEyepoint::
22FltEyepoint() {
23 _rotation_center.set(0.0, 0.0, 0.0);
24 _hpr.set(0.0, 0.0, 0.0);
25 _rotation = LMatrix4::ident_mat();
26 _fov = 60.0;
27 _scale = 1.0;
28 _near_clip = 0.1;
29 _far_clip = 10000.0;
30 _fly_through = LMatrix4::ident_mat();
31 _eyepoint.set(0.0, 0.0, 0.0);
32 _fly_through_yaw = 0.0;
33 _fly_through_pitch = 0.0;
34 _eyepoint_direction.set(0.0, 1.0, 0.0);
35 _no_fly_through = true;
36 _ortho_mode = false;
37 _is_valid = true;
38 _image_offset_x = 0;
39 _image_offset_y = 0;
40 _image_zoom = 1;
41}
42
43/**
44 *
45 */
46bool FltEyepoint::
47extract_record(FltRecordReader &reader) {
48 DatagramIterator &iterator = reader.get_iterator();
49
50 _rotation_center[0] = iterator.get_be_float64();
51 _rotation_center[1] = iterator.get_be_float64();
52 _rotation_center[2] = iterator.get_be_float64();
53 _hpr[0] = iterator.get_be_float32();
54 _hpr[1] = iterator.get_be_float32();
55 _hpr[2] = iterator.get_be_float32();
56 int r;
57 for (r = 0; r < 4; r++) {
58 for (int c = 0; c < 4; c++) {
59 _rotation(r, c) = iterator.get_be_float32();
60 }
61 }
62 _fov = iterator.get_be_float32();
63 _scale = iterator.get_be_float32();
64 _near_clip = iterator.get_be_float32();
65 _far_clip = iterator.get_be_float32();
66 for (r = 0; r < 4; r++) {
67 for (int c = 0; c < 4; c++) {
68 _fly_through(r, c) = iterator.get_be_float32();
69 }
70 }
71 _eyepoint[0] = iterator.get_be_float32();
72 _eyepoint[1] = iterator.get_be_float32();
73 _eyepoint[2] = iterator.get_be_float32();
74 _fly_through_yaw = iterator.get_be_float32();
75 _fly_through_pitch = iterator.get_be_float32();
76 _eyepoint_direction[0] = iterator.get_be_float32();
77 _eyepoint_direction[1] = iterator.get_be_float32();
78 _eyepoint_direction[2] = iterator.get_be_float32();
79 _no_fly_through = (iterator.get_be_int32() != 0);
80 _ortho_mode = (iterator.get_be_int32() != 0);
81 _is_valid = (iterator.get_be_int32() != 0);
82 _image_offset_x = iterator.get_be_int32();
83 _image_offset_y = iterator.get_be_int32();
84 _image_zoom = iterator.get_be_int32();
85 iterator.skip_bytes(4*9);
86
87 return true;
88}
89
90/**
91 *
92 */
93bool FltEyepoint::
94build_record(FltRecordWriter &writer) const {
95 Datagram &datagram = writer.update_datagram();
96
97 datagram.add_be_float64(_rotation_center[0]);
98 datagram.add_be_float64(_rotation_center[1]);
99 datagram.add_be_float64(_rotation_center[2]);
100 datagram.add_be_float32(_hpr[0]);
101 datagram.add_be_float32(_hpr[1]);
102 datagram.add_be_float32(_hpr[2]);
103 int r;
104 for (r = 0; r < 4; r++) {
105 for (int c = 0; c < 4; c++) {
106 datagram.add_be_float32(_rotation(r, c));
107 }
108 }
109 datagram.add_be_float32(_fov);
110 datagram.add_be_float32(_scale);
111 datagram.add_be_float32(_near_clip);
112 datagram.add_be_float32(_far_clip);
113 for (r = 0; r < 4; r++) {
114 for (int c = 0; c < 4; c++) {
115 datagram.add_be_float32(_fly_through(r, c));
116 }
117 }
118 datagram.add_be_float32(_eyepoint[0]);
119 datagram.add_be_float32(_eyepoint[1]);
120 datagram.add_be_float32(_eyepoint[2]);
121 datagram.add_be_float32(_fly_through_yaw);
122 datagram.add_be_float32(_fly_through_pitch);
123 datagram.add_be_float32(_eyepoint_direction[0]);
124 datagram.add_be_float32(_eyepoint_direction[1]);
125 datagram.add_be_float32(_eyepoint_direction[2]);
126 datagram.add_be_int32(_no_fly_through);
127 datagram.add_be_int32(_ortho_mode);
128 datagram.add_be_int32(_is_valid);
129 datagram.add_be_int32(_image_offset_x);
130 datagram.add_be_int32(_image_offset_y);
131 datagram.add_be_int32(_image_zoom);
132 datagram.pad_bytes(4*9);
133
134 return true;
135}
A class to retrieve the individual data elements previously stored in a Datagram.
void skip_bytes(size_t size)
Skips over the indicated number of bytes in the datagram.
int32_t get_be_int32()
Extracts a signed 32-bit big-endian integer.
PN_float32 get_be_float32()
Extracts a 32-bit big-endian single-precision floating-point number.
PN_float64 get_be_float64()
Extracts a 64-bit big-endian floating-point number.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
void add_be_int32(int32_t value)
Adds a signed 32-bit big-endian integer to the datagram.
Definition datagram.I:154
void add_be_float32(PN_float32 value)
Adds a 32-bit single-precision big-endian floating-point number to the datagram.
Definition datagram.I:200
void add_be_float64(PN_float64 value)
Adds a 64-bit big-endian floating-point number to the datagram.
Definition datagram.I:209
void pad_bytes(size_t size)
Adds the indicated number of zero bytes to the datagram.
Definition datagram.cxx:99
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
DatagramIterator & get_iterator()
Returns an iterator suitable for extracting data from the current record.
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
Datagram & update_datagram()
Returns a modifiable reference to the datagram associated with the current record.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.