目次1 はじめに.............................................................................................................................. 1
1-1 目的と適用範囲 ............................................................................................................ 11-2 メタデータ ................................................................................................................... 2
2 本書で対象とするモデルについて ..................................................................................... 3
2-1 本書が対象とする事業段階 ......................................................................................... 32-2 本書で対象とするモデル ............................................................................................. 5
2-3 モデルの基本的な考え方 ............................................................................................. 62-3-1 中心線形データ ..................................................................................................... 62-3-2 横断形状データ ....................................................................................................112-3-3 地形情報 .............................................................................................................. 142-3-4 舗装情報 .............................................................................................................. 152-3-5 表面データ .......................................................................................................... 162-4 本書で取り扱う横断形状 ........................................................................................... 173 適用した規約等................................................................................................................. 203-1 引用規格..................................................................................................................... 203-2 データ形式と文字コード ........................................................................................... 203-2-1 データ形式 .......................................................................................................... 203-2-2 文字コード .......................................................................................................... 203-3 命名規約..................................................................................................................... 213-3-1 使用文字に関する命名規約................................................................................. 213-3-2 要素・属性に関する命名規約 ............................................................................. 223-4 用語解説..................................................................................................................... 234 XML スキーマ解説 ............................................................................................................ 31
4-1 全体構成の解説 .......................................................................................................... 31
4-2 表記方法の例 ............................................................................................................. 32
4-3 要素の解説 ................................................................................................................. 33
4-3-1 プロジェクト情報 ............................................................................................... 344-3-2 フィーチャ .......................................................................................................... 35
4-3-3 プロパティ .......................................................................................................... 35
4-3-4 アプリケーション情報 ........................................................................................ 37
4-3-5 作成者情報 .......................................................................................................... 37
4-3-6 座標参照系 .......................................................................................................... 38
4-3-7 単位系 ................................................................................................................. 40
4-3-8 メートル法 .......................................................................................................... 40

4-3-9 座標点セット ...................................................................................................... 41
4-3-10 座標点 ............................................................................................................... 42
4-3-11 線形セット（中心線形セット） ....................................................................... 44
4-3-12 線形（中心線形） ............................................................................................. 45
4-3-13 測点定義 ............................................................................................................ 48
4-3-14 幾何要素 ............................................................................................................ 49
4-3-15 直線 ................................................................................................................... 50
4-3-16 開始点 ............................................................................................................... 50
4-3-17 終了点 ............................................................................................................... 50
4-3-18 円曲線 ............................................................................................................... 51
4-3-19 中心点 ............................................................................................................... 51
4-3-20 緩和曲線 ............................................................................................................ 52
4-3-21 交点 ................................................................................................................... 53
4-3-22 IP 点リスト ........................................................................................................ 54
4-3-23 IP 点................................................................................................................... 54
4-3-24 縦断形状 ............................................................................................................ 55
4-3-25 縦断線形 ............................................................................................................ 55
4-3-26 縦断勾配変移点（縦断曲線を持たない勾配変化点） ...................................... 56
4-3-27 縦断勾配変移点（縦断曲線を持つ勾配変化点） .............................................. 56
4-3-28 縦断地盤線 ........................................................................................................ 57
4-3-29 2 次元座標リスト ............................................................................................... 57
4-3-30 横断形状セット ................................................................................................. 58
4-3-31 横断面 ............................................................................................................... 59
4-3-32 横断形状 ............................................................................................................ 63
4-3-33 構成点 ............................................................................................................... 66
地形情報 ........................................................................................................................ 74
4-3-34 Roadways .......................................................................................................... 75
4-3-35 Roadway ............................................................................................................ 75
4-3-36 Speeds ............................................................................................................... 75
4-3-37 DesignSpeed ..................................................................................................... 76
4-3-38 要素種別サーフェスセット............................................................................... 76
4-3-39 要素種別サーフェス ......................................................................................... 77
4-3-40 サーフェス定義 ................................................................................................. 77
4-3-41 点集合 ............................................................................................................... 77
4-3-42 点 ....................................................................................................................... 78
4-3-43 面集合 ............................................................................................................... 78

4-3-44 面 ....................................................................................................................... 78
4-4 UML クラス図 ............................................................................................................ 79
5 サンプルデータ................................................................................................................. 80【参考】LandXML 1.2 のサブセットスキーマ ................................................................. 104