1 /******************************************************************************
2 * Copyright (c) 2016, Hobu Inc. (info@hobu.co)
3 *
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following
8 * conditions are met:
9 *
10 *     * Redistributions of source code must retain the above copyright
11 *       notice, this list of conditions and the following disclaimer.
12 *     * Redistributions in binary form must reproduce the above copyright
13 *       notice, this list of conditions and the following disclaimer in
14 *       the documentation and/or other materials provided
15 *       with the distribution.
16 *     * Neither the name of Hobu, Inc. nor the names of its contributors
17 *       may be used to endorse or promote products derived from this
18 *       software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31 * OF SUCH DAMAGE.
32 ****************************************************************************/
33 
34 #pragma once
35 
36 #include <pdal/PointView.hpp>
37 #include <pdal/util/ProgramArgs.hpp>
38 
39 namespace pdal
40 {
41 
42 class ProgramArgs;
43 
44 /**
45   Scaling provides support for transforming X/Y/Z values from double to
46   scaled integers and vice versa.
47 */
48 class PDAL_DLL Scaling
49 {
50 public:
51     XForm m_xXform;          ///< X-dimension transform (scale/offset)
52     XForm m_yXform;          ///< Y-dimension transform (scale/offset)
53     XForm m_zXform;          ///< Z-dimension transform (scale/offset)
54     Arg *m_xOffArg;
55     Arg *m_yOffArg;
56     Arg *m_zOffArg;
57     Arg *m_xScaleArg;
58     Arg *m_yScaleArg;
59     Arg *m_zScaleArg;
60 
61     /**
62        Determine if any of the transformations are non-standard.
63 
64        \return  Whether any transforms are non-standard.
65     */
nonstandard() const66     bool nonstandard() const
67     {
68         return m_xXform.nonstandard() || m_yXform.nonstandard() ||
69             m_zXform.nonstandard();
70     }
71 
72     /**
73       Compute an automatic scale/offset for points in the PointView.
74 
75       \param view  PointView on which scale should be computed.
76     */
77     virtual void setAutoXForm(const PointViewSet& pvSet);
78 
79     /**
80       Add option/command-line arguments for transform variables.
81 
82       \param args  Argument set to add to.
83     */
84     void addArgs(ProgramArgs& args);
85 };
86 
87 } // namespace pdal
88 
89