694 lines
20 KiB
C++
694 lines
20 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: dxfrenderer.cpp
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// Purpose: DXF reader and renderer
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// Author: Sandro Sigala
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// Modified by:
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// Created: 2005-11-10
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// Copyright: (c) Sandro Sigala
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/wfstream.h"
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#include "wx/txtstrm.h"
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#if !wxUSE_GLCANVAS
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#error "OpenGL required: set wxUSE_GLCANVAS to 1 and rebuild the library"
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#endif
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#ifdef __DARWIN__
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#include <OpenGL/glu.h>
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#else
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#include <GL/glu.h>
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#endif
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#include <sstream>
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#include "dxfrenderer.h"
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#include "wx/listimpl.cpp"
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WX_DEFINE_LIST(DXFEntityList)
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WX_DEFINE_LIST(DXFLayerList)
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// Conversion table from AutoCAD ACI colours to RGB values
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static const struct { unsigned char r, g, b; } aci_to_rgb[256] = {
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/* 0 */ {255, 255, 255},
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/* 1 */ {255, 0, 0},
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/* 2 */ {255, 255, 0},
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/* 3 */ { 0, 255, 0},
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/* 4 */ { 0, 255, 255},
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/* 5 */ { 0, 0, 255},
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/* 6 */ {255, 0, 255},
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/* 7 */ {255, 255, 255},
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/* 8 */ {128, 128, 128},
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/* 9 */ {192, 192, 192},
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/* 10 */ {255, 0, 0},
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/* 11 */ {255, 127, 127},
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/* 12 */ {204, 0, 0},
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/* 13 */ {204, 102, 102},
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/* 14 */ {153, 0, 0},
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/* 15 */ {153, 76, 76},
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/* 16 */ {127, 0, 0},
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/* 17 */ {127, 63, 63},
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/* 18 */ { 76, 0, 0},
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/* 19 */ { 76, 38, 38},
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/* 20 */ {255, 63, 0},
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/* 21 */ {255, 159, 127},
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/* 22 */ {204, 51, 0},
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/* 23 */ {204, 127, 102},
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/* 24 */ {153, 38, 0},
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/* 25 */ {153, 95, 76},
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/* 26 */ {127, 31, 0},
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/* 27 */ {127, 79, 63},
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/* 28 */ { 76, 19, 0},
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/* 29 */ { 76, 47, 38},
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/* 30 */ {255, 127, 0},
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/* 31 */ {255, 191, 127},
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/* 32 */ {204, 102, 0},
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/* 33 */ {204, 153, 102},
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/* 34 */ {153, 76, 0},
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/* 35 */ {153, 114, 76},
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/* 36 */ {127, 63, 0},
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/* 37 */ {127, 95, 63},
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/* 38 */ { 76, 38, 0},
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/* 39 */ { 76, 57, 38},
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/* 40 */ {255, 191, 0},
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/* 41 */ {255, 223, 127},
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/* 42 */ {204, 153, 0},
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/* 43 */ {204, 178, 102},
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/* 44 */ {153, 114, 0},
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/* 45 */ {153, 133, 76},
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/* 46 */ {127, 95, 0},
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/* 47 */ {127, 111, 63},
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/* 48 */ { 76, 57, 0},
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/* 49 */ { 76, 66, 38},
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/* 50 */ {255, 255, 0},
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/* 51 */ {255, 255, 127},
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/* 52 */ {204, 204, 0},
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/* 53 */ {204, 204, 102},
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/* 54 */ {153, 153, 0},
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/* 55 */ {153, 153, 76},
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/* 56 */ {127, 127, 0},
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/* 57 */ {127, 127, 63},
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/* 58 */ { 76, 76, 0},
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/* 59 */ { 76, 76, 38},
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/* 60 */ {191, 255, 0},
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/* 61 */ {223, 255, 127},
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/* 62 */ {153, 204, 0},
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/* 63 */ {178, 204, 102},
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/* 64 */ {114, 153, 0},
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/* 65 */ {133, 153, 76},
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/* 66 */ { 95, 127, 0},
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/* 67 */ {111, 127, 63},
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/* 68 */ { 57, 76, 0},
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/* 69 */ { 66, 76, 38},
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/* 70 */ {127, 255, 0},
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/* 71 */ {191, 255, 127},
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/* 72 */ {102, 204, 0},
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/* 73 */ {153, 204, 102},
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/* 74 */ { 76, 153, 0},
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/* 75 */ {114, 153, 76},
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/* 76 */ { 63, 127, 0},
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/* 77 */ { 95, 127, 63},
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/* 78 */ { 38, 76, 0},
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/* 79 */ { 57, 76, 38},
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/* 80 */ { 63, 255, 0},
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/* 81 */ {159, 255, 127},
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/* 82 */ { 51, 204, 0},
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/* 83 */ {127, 204, 102},
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/* 84 */ { 38, 153, 0},
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/* 85 */ { 95, 153, 76},
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/* 86 */ { 31, 127, 0},
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/* 87 */ { 79, 127, 63},
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/* 88 */ { 19, 76, 0},
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/* 89 */ { 47, 76, 38},
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/* 90 */ { 0, 255, 0},
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/* 91 */ {127, 255, 127},
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/* 92 */ { 0, 204, 0},
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/* 93 */ {102, 204, 102},
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/* 94 */ { 0, 153, 0},
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/* 95 */ { 76, 153, 76},
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/* 96 */ { 0, 127, 0},
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/* 97 */ { 63, 127, 63},
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/* 98 */ { 0, 76, 0},
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/* 99 */ { 38, 76, 38},
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/* 100 */ { 0, 255, 63},
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/* 101 */ {127, 255, 159},
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/* 102 */ { 0, 204, 51},
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/* 103 */ {102, 204, 127},
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/* 104 */ { 0, 153, 38},
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/* 105 */ { 76, 153, 95},
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/* 106 */ { 0, 127, 31},
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/* 107 */ { 63, 127, 79},
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/* 108 */ { 0, 76, 19},
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/* 109 */ { 38, 76, 47},
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/* 110 */ { 0, 255, 127},
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/* 111 */ {127, 255, 191},
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/* 112 */ { 0, 204, 102},
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/* 113 */ {102, 204, 153},
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/* 114 */ { 0, 153, 76},
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/* 115 */ { 76, 153, 114},
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/* 116 */ { 0, 127, 63},
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/* 117 */ { 63, 127, 95},
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/* 118 */ { 0, 76, 38},
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/* 119 */ { 38, 76, 57},
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/* 120 */ { 0, 255, 191},
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/* 121 */ {127, 255, 223},
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/* 122 */ { 0, 204, 153},
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/* 123 */ {102, 204, 178},
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/* 124 */ { 0, 153, 114},
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/* 125 */ { 76, 153, 133},
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/* 126 */ { 0, 127, 95},
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/* 127 */ { 63, 127, 111},
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/* 128 */ { 0, 76, 57},
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/* 129 */ { 38, 76, 66},
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/* 130 */ { 0, 255, 255},
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/* 131 */ {127, 255, 255},
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/* 132 */ { 0, 204, 204},
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/* 133 */ {102, 204, 204},
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/* 134 */ { 0, 153, 153},
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/* 135 */ { 76, 153, 153},
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/* 136 */ { 0, 127, 127},
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/* 137 */ { 63, 127, 127},
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/* 138 */ { 0, 76, 76},
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/* 139 */ { 38, 76, 76},
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/* 140 */ { 0, 191, 255},
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/* 141 */ {127, 223, 255},
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/* 142 */ { 0, 153, 204},
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/* 143 */ {102, 178, 204},
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/* 144 */ { 0, 114, 153},
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/* 145 */ { 76, 133, 153},
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/* 146 */ { 0, 95, 127},
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/* 147 */ { 63, 111, 127},
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/* 148 */ { 0, 57, 76},
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/* 149 */ { 38, 66, 76},
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/* 150 */ { 0, 127, 255},
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/* 151 */ {127, 191, 255},
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/* 152 */ { 0, 102, 204},
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/* 153 */ {102, 153, 204},
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/* 154 */ { 0, 76, 153},
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/* 155 */ { 76, 114, 153},
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/* 156 */ { 0, 63, 127},
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/* 157 */ { 63, 95, 127},
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/* 158 */ { 0, 38, 76},
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/* 159 */ { 38, 57, 76},
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/* 160 */ { 0, 63, 255},
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/* 161 */ {127, 159, 255},
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/* 162 */ { 0, 51, 204},
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/* 163 */ {102, 127, 204},
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/* 164 */ { 0, 38, 153},
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/* 165 */ { 76, 95, 153},
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/* 166 */ { 0, 31, 127},
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/* 167 */ { 63, 79, 127},
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/* 168 */ { 0, 19, 76},
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/* 169 */ { 38, 47, 76},
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/* 170 */ { 0, 0, 255},
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/* 171 */ {127, 127, 255},
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/* 172 */ { 0, 0, 204},
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/* 173 */ {102, 102, 204},
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/* 174 */ { 0, 0, 153},
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/* 175 */ { 76, 76, 153},
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/* 176 */ { 0, 0, 127},
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/* 177 */ { 63, 63, 127},
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/* 178 */ { 0, 0, 76},
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/* 179 */ { 38, 38, 76},
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/* 180 */ { 63, 0, 255},
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/* 181 */ {159, 127, 255},
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/* 182 */ { 51, 0, 204},
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/* 183 */ {127, 102, 204},
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/* 184 */ { 38, 0, 153},
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/* 185 */ { 95, 76, 153},
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/* 186 */ { 31, 0, 127},
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/* 187 */ { 79, 63, 127},
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/* 188 */ { 19, 0, 76},
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/* 189 */ { 47, 38, 76},
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/* 190 */ {127, 0, 255},
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/* 191 */ {191, 127, 255},
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/* 192 */ {102, 0, 204},
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/* 193 */ {153, 102, 204},
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/* 194 */ { 76, 0, 153},
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/* 195 */ {114, 76, 153},
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/* 196 */ { 63, 0, 127},
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/* 197 */ { 95, 63, 127},
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/* 198 */ { 38, 0, 76},
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/* 199 */ { 57, 38, 76},
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/* 200 */ {191, 0, 255},
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/* 201 */ {223, 127, 255},
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/* 202 */ {153, 0, 204},
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/* 203 */ {178, 102, 204},
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/* 204 */ {114, 0, 153},
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/* 205 */ {133, 76, 153},
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/* 206 */ { 95, 0, 127},
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/* 207 */ {111, 63, 127},
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/* 208 */ { 57, 0, 76},
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/* 209 */ { 66, 38, 76},
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/* 210 */ {255, 0, 255},
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/* 211 */ {255, 127, 255},
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/* 212 */ {204, 0, 204},
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/* 213 */ {204, 102, 204},
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/* 214 */ {153, 0, 153},
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/* 215 */ {153, 76, 153},
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/* 216 */ {127, 0, 127},
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/* 217 */ {127, 63, 127},
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/* 218 */ { 76, 0, 76},
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/* 219 */ { 76, 38, 76},
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/* 220 */ {255, 0, 191},
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/* 221 */ {255, 127, 223},
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/* 222 */ {204, 0, 153},
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/* 223 */ {204, 102, 178},
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/* 224 */ {153, 0, 114},
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/* 225 */ {153, 76, 133},
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/* 226 */ {127, 0, 95},
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/* 227 */ {127, 63, 111},
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/* 228 */ { 76, 0, 57},
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/* 229 */ { 76, 38, 66},
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/* 230 */ {255, 0, 127},
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/* 231 */ {255, 127, 191},
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/* 232 */ {204, 0, 102},
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/* 233 */ {204, 102, 153},
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/* 234 */ {153, 0, 76},
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/* 235 */ {153, 76, 114},
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/* 236 */ {127, 0, 63},
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/* 237 */ {127, 63, 95},
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/* 238 */ { 76, 0, 38},
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/* 239 */ { 76, 38, 57},
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/* 240 */ {255, 0, 63},
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/* 241 */ {255, 127, 159},
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/* 242 */ {204, 0, 51},
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/* 243 */ {204, 102, 127},
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/* 244 */ {153, 0, 38},
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/* 245 */ {153, 76, 95},
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/* 246 */ {127, 0, 31},
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/* 247 */ {127, 63, 79},
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/* 248 */ { 76, 0, 19},
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/* 249 */ { 76, 38, 47},
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/* 250 */ { 51, 51, 51},
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/* 251 */ { 91, 91, 91},
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/* 252 */ {132, 132, 132},
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/* 253 */ {173, 173, 173},
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/* 254 */ {214, 214, 214},
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/* 255 */ {255, 255, 255}
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};
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inline DXFVector Cross(const DXFVector& v1, const DXFVector& v2)
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{
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return DXFVector(v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
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}
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void DXFFace::CalculateNormal()
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{
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DXFVector v01, v02;
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v01.x = v0.x - v1.x;
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v01.y = v0.y - v1.y;
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v01.z = v0.z - v1.z;
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v02.x = v0.x - v2.x;
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v02.y = v0.y - v2.y;
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v02.z = v0.z - v2.z;
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n = Cross(v01, v02);
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float mod = sqrt(n.x*n.x + n.y*n.y + n.z*n.z);
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n.x /= mod;
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n.y /= mod;
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n.z /= mod;
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}
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// convert an AutoCAD ACI colour to wxWidgets RGB colour
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inline wxColour ACIColourToRGB(int col)
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{
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wxASSERT(col >= 0 && col <= 255);
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return wxColour(aci_to_rgb[col].r, aci_to_rgb[col].g, aci_to_rgb[col].b);
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}
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// DXFReader constructor
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DXFRenderer::DXFRenderer()
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{
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m_loaded = false;
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}
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// DXFReader destructor
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DXFRenderer::~DXFRenderer()
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{
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Clear();
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}
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// deallocate all the dynamic data
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void DXFRenderer::Clear()
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{
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m_loaded = false;
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{
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for (DXFLayerList::compatibility_iterator node = m_layers.GetFirst(); node; node = node->GetNext())
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{
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DXFLayer *current = node->GetData();
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delete current;
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}
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}
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m_layers.Clear();
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{
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for (DXFEntityList::compatibility_iterator node = m_entities.GetFirst(); node; node = node->GetNext())
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{
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DXFEntity *current = node->GetData();
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delete current;
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}
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m_entities.Clear();
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}
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}
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int DXFRenderer::GetLayerColour(const wxString& layer) const
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{
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for (DXFLayerList::compatibility_iterator node = m_layers.GetFirst(); node; node = node->GetNext())
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{
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DXFLayer *current = node->GetData();
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if (current->name == layer)
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return current->colour;
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}
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return 7; // white
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}
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// read two sequential lines
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inline void GetLines(wxTextInputStream& text, wxString& line1, wxString& line2)
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{
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line1 = text.ReadLine().Trim().Trim(false);
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line2 = text.ReadLine().Trim().Trim(false);
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}
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// parse header section: just skip everything
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bool DXFRenderer::ParseHeader(wxInputStream& stream)
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{
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wxTextInputStream text(stream);
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wxString line1, line2;
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while (stream.CanRead())
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{
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GetLines(text, line1, line2);
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if (line1 == wxT("0") && line2 == wxT("ENDSEC"))
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return true;
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}
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return false;
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}
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// parse tables section: save layers name and colour
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bool DXFRenderer::ParseTables(wxInputStream& stream)
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{
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wxTextInputStream text(stream);
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wxString line1, line2;
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bool inlayer=false;
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DXFLayer layer;
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while (stream.CanRead())
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{
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GetLines(text, line1, line2);
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if (line1 == wxT("0") && inlayer)
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{
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// flush layer
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if (!layer.name.IsEmpty() && layer.colour != -1)
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{
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DXFLayer *p = new DXFLayer;
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p->name = layer.name;
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p->colour = layer.colour;
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m_layers.Append(p);
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}
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layer = DXFLayer();
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inlayer = false;
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}
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if (line1 == wxT("0") && line2 == wxT("ENDSEC"))
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return true;
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else if (line1 == wxT("0") && line2 == wxT("LAYER"))
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inlayer = true;
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else if (inlayer)
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{
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if (line1 == wxT("2")) // layer name
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layer.name = line2;
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else if (line1 == wxT("62")) // ACI colour
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{
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long l;
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line2.ToLong(&l);
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layer.colour = l;
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}
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}
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}
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return false;
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}
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// This method is used instead of numStr.ToDouble(d) because the latter
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// (wxString::ToDouble()) takes the systems proper locale into account,
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// whereas the implementation below works with the default locale.
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// (Converting numbers that are formatted in the default locale can fail
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// with system locales that use e.g. the comma as the decimal separator.)
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static double ToDouble(const wxString& numStr)
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{
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double d;
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std::string numStr_(numStr.c_str());
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std::istringstream iss(numStr_);
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iss >> d;
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return d;
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}
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// parse entities section: save 3DFACE and LINE entities
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bool DXFRenderer::ParseEntities(wxInputStream& stream)
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{
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wxTextInputStream text(stream);
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wxString line1, line2;
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int state = 0; // 0: none, 1: 3DFACE, 2: LINE
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DXFVector v[4];
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int colour = -1;
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wxString layer;
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while (stream.CanRead())
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{
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GetLines(text, line1, line2);
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if (line1 == wxT("0") && state > 0)
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{
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// flush entity
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if (state == 1) // 3DFACE
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{
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DXFFace *p = new DXFFace;
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p->v0 = v[0];
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p->v1 = v[1];
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p->v2 = v[2];
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p->v3 = v[3];
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p->CalculateNormal();
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if (colour != -1)
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p->colour = colour;
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else
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p->colour = GetLayerColour(layer);
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m_entities.Append(p);
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colour = -1; layer = wxEmptyString;
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v[0] = v[1] = v[2] = v[3] = DXFVector();
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state = 0;
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}
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else if (state == 2) // LINE
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{
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DXFLine *p = new DXFLine;
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p->v0 = v[0];
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p->v1 = v[1];
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if (colour != -1)
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|
p->colour = colour;
|
|
else
|
|
p->colour = GetLayerColour(layer);
|
|
m_entities.Append(p);
|
|
colour = -1; layer = wxEmptyString;
|
|
v[0] = v[1] = v[2] = v[3] = DXFVector();
|
|
state = 0;
|
|
}
|
|
}
|
|
if (line1 == wxT("0") && line2 == wxT("ENDSEC"))
|
|
return true;
|
|
else if (line1 == wxT("0") && line2 == wxT("3DFACE"))
|
|
state = 1;
|
|
else if (line1 == wxT("0") && line2 == wxT("LINE"))
|
|
state = 2;
|
|
else if (state > 0)
|
|
{
|
|
const double d=ToDouble(line2);
|
|
|
|
if (line1 == wxT("10"))
|
|
v[0].x = d;
|
|
else if (line1 == wxT("20"))
|
|
v[0].y = d;
|
|
else if (line1 == wxT("30"))
|
|
v[0].z = d;
|
|
else if (line1 == wxT("11"))
|
|
v[1].x = d;
|
|
else if (line1 == wxT("21"))
|
|
v[1].y = d;
|
|
else if (line1 == wxT("31"))
|
|
v[1].z = d;
|
|
else if (line1 == wxT("12"))
|
|
v[2].x = d;
|
|
else if (line1 == wxT("22"))
|
|
v[2].y = d;
|
|
else if (line1 == wxT("32"))
|
|
v[2].z = d;
|
|
else if (line1 == wxT("13"))
|
|
v[3].x = d;
|
|
else if (line1 == wxT("23"))
|
|
v[3].y = d;
|
|
else if (line1 == wxT("33"))
|
|
v[3].z = d;
|
|
else if (line1 == wxT("8")) // layer
|
|
layer = line2;
|
|
else if (line1 == wxT("62")) // colour
|
|
{
|
|
long l;
|
|
line2.ToLong(&l);
|
|
colour = l;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// parse and load a DXF file
|
|
// currently pretty limited, but knows enough to handle 3DFACEs and LINEs
|
|
bool DXFRenderer::Load(wxInputStream& stream)
|
|
{
|
|
Clear();
|
|
wxTextInputStream text(stream);
|
|
|
|
wxString line1, line2;
|
|
while (stream.CanRead())
|
|
{
|
|
GetLines(text, line1, line2);
|
|
if (line1 == wxT("999")) // comment
|
|
continue;
|
|
else if (line1 == wxT("0") && line2 == wxT("SECTION"))
|
|
{
|
|
GetLines(text, line1, line2);
|
|
if (line1 == wxT("2"))
|
|
{
|
|
if (line2 == wxT("HEADER"))
|
|
{
|
|
if (!ParseHeader(stream))
|
|
return false;
|
|
}
|
|
else if (line2 == wxT("TABLES"))
|
|
{
|
|
if (!ParseTables(stream))
|
|
return false;
|
|
}
|
|
else if (line2 == wxT("ENTITIES"))
|
|
{
|
|
if (!ParseEntities(stream))
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NormalizeEntities();
|
|
m_loaded = true;
|
|
return true;
|
|
}
|
|
|
|
inline float mymin(float x, float y) { return x < y ? x : y; }
|
|
inline float mymax(float x, float y) { return x > y ? x : y; }
|
|
|
|
// Scale object boundings to [-5,5]
|
|
void DXFRenderer::NormalizeEntities()
|
|
{
|
|
// calculate current min and max boundings of object
|
|
DXFVector minv(10e20f, 10e20f, 10e20f);
|
|
DXFVector maxv(-10e20f, -10e20f, -10e20f);
|
|
for (DXFEntityList::compatibility_iterator node = m_entities.GetFirst(); node; node = node->GetNext())
|
|
{
|
|
DXFEntity *p = node->GetData();
|
|
if (p->type == DXFEntity::Line)
|
|
{
|
|
DXFLine *line = (DXFLine *)p;
|
|
const DXFVector *v[2] = { &line->v0, &line->v1 };
|
|
for (int i = 0; i < 2; ++i)
|
|
{
|
|
minv.x = mymin(v[i]->x, minv.x);
|
|
minv.y = mymin(v[i]->y, minv.y);
|
|
minv.z = mymin(v[i]->z, minv.z);
|
|
maxv.x = mymax(v[i]->x, maxv.x);
|
|
maxv.y = mymax(v[i]->y, maxv.y);
|
|
maxv.z = mymax(v[i]->z, maxv.z);
|
|
}
|
|
} else if (p->type == DXFEntity::Face)
|
|
{
|
|
DXFFace *face = (DXFFace *)p;
|
|
const DXFVector *v[4] = { &face->v0, &face->v1, &face->v2, &face->v3 };
|
|
for (int i = 0; i < 4; ++i)
|
|
{
|
|
minv.x = mymin(v[i]->x, minv.x);
|
|
minv.y = mymin(v[i]->y, minv.y);
|
|
minv.z = mymin(v[i]->z, minv.z);
|
|
maxv.x = mymax(v[i]->x, maxv.x);
|
|
maxv.y = mymax(v[i]->y, maxv.y);
|
|
maxv.z = mymax(v[i]->z, maxv.z);
|
|
}
|
|
}
|
|
}
|
|
|
|
// rescale object down to [-5,5]
|
|
DXFVector span(maxv.x - minv.x, maxv.y - minv.y, maxv.z - minv.z);
|
|
float factor = mymin(mymin(10.0f / span.x, 10.0f / span.y), 10.0f / span.z);
|
|
for (DXFEntityList::compatibility_iterator node2 = m_entities.GetFirst(); node2; node2 = node2->GetNext())
|
|
{
|
|
DXFEntity *p = node2->GetData();
|
|
if (p->type == DXFEntity::Line)
|
|
{
|
|
DXFLine *line = (DXFLine *)p;
|
|
DXFVector *v[2] = { &line->v0, &line->v1 };
|
|
for (int i = 0; i < 2; ++i)
|
|
{
|
|
v[i]->x -= minv.x + span.x/2; v[i]->x *= factor;
|
|
v[i]->y -= minv.y + span.y/2; v[i]->y *= factor;
|
|
v[i]->z -= minv.z + span.z/2; v[i]->z *= factor;
|
|
}
|
|
} else if (p->type == DXFEntity::Face)
|
|
{
|
|
DXFFace *face = (DXFFace *)p;
|
|
DXFVector *v[4] = { &face->v0, &face->v1, &face->v2, &face->v3 };
|
|
for (int i = 0; i < 4; ++i)
|
|
{
|
|
v[i]->x -= minv.x + span.x/2; v[i]->x *= factor;
|
|
v[i]->y -= minv.y + span.y/2; v[i]->y *= factor;
|
|
v[i]->z -= minv.z + span.z/2; v[i]->z *= factor;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// OpenGL renderer for DXF entities
|
|
void DXFRenderer::Render() const
|
|
{
|
|
if (!m_loaded)
|
|
return;
|
|
|
|
for (DXFEntityList::compatibility_iterator node = m_entities.GetFirst(); node; node = node->GetNext())
|
|
{
|
|
DXFEntity *p = node->GetData();
|
|
wxColour c = ACIColourToRGB(p->colour);
|
|
if (p->type == DXFEntity::Line)
|
|
{
|
|
DXFLine *line = (DXFLine *)p;
|
|
glBegin(GL_LINES);
|
|
glColor3f(c.Red()/255.0,c.Green()/255.0,c.Blue()/255.0);
|
|
glVertex3f(line->v0.x, line->v0.y, line->v0.z);
|
|
glVertex3f(line->v1.x, line->v1.y, line->v1.z);
|
|
glEnd();
|
|
}
|
|
else if (p->type == DXFEntity::Face)
|
|
{
|
|
DXFFace *face = (DXFFace *)p;
|
|
glBegin(GL_TRIANGLES);
|
|
glColor3f(c.Red()/255.0,c.Green()/255.0,c.Blue()/255.0);
|
|
glNormal3f(face->n.x, face->n.y, face->n.z);
|
|
glVertex3f(face->v0.x, face->v0.y, face->v0.z);
|
|
glVertex3f(face->v1.x, face->v1.y, face->v1.z);
|
|
glVertex3f(face->v2.x, face->v2.y, face->v2.z);
|
|
glEnd();
|
|
}
|
|
}
|
|
}
|