JP4224263B2 - A program that allows a computer to manage map information - Google Patents

Description

このように、各閉領域で求めた図形の重心位置は、図１７に示した式により、統合することができる。図１７では、面積Ｓ１、重心位置（Xg1,Yg1）の図形と、面積Ｓ２、重心位置（Xg2,Yg2）の図形の重心位置から、両図形を統合した重心位置（XG,YG）を求めている。図１７の手順を順次繰り返すことで、複数の閉領域からなる図形全体の重心を求めることができる。
【００８５】
図１８および図１９により、重心を求める第２の手順を示す。図１８の作業用テーブル２は、図１３の各領域（Ｄ１〜Ｄ５を各々領域番号１〜５で示している）における台形の頂点座標（図形が三角形の場合、２つの頂点座標が一致する）と、その領域の台形の斜辺の式（図１７では、線分の式１、線分の式２）を記述したものである。
【００８６】
ここで、台形の頂点座標は、各台形の左上点（Ｘ座標１、Ｙ座標１）、右上点（Ｘ座標２、Ｙ座標２）、左下点（Ｘ座標３、Ｙ座標３）、および右下点（Ｘ座標４、Ｙ座標４）の順に記述している。また、線分の式１、線分の式２は、各々、各領域における台形の上の斜辺および下の斜辺を記述する直線の式である。
【００８７】
図１８の作業用テーブル３は、作業用テーブル２に登録された各台形を三角形に分割してデータを保持する。作業用テーブル３は、三角形の頂点（Ｘ座標１、Ｙ座標１）（Ｘ座標２、Ｙ座標２）（Ｘ座標３、Ｙ座標３）を格納するフィールドを有している。
【００８８】
図１９に、作業用テーブル２に登録された台形を三角形に分割し、作業用テーブル３に登録する処理を示す。
【００８９】
この処理では、本不動産登記システムは、まず、作業用テーブル２からレコードを読み込む（Ｓ３０）。そして、不動産登記システムは、作業用テーブル２の台形の左上点（Ｘ座標１、Ｙ座標１）と左下点（Ｘ座標３、Ｙ座標３）とが一致するか否かを判定する（Ｓ３２）。
【００９０】
これらの点が一致する場合、当該レコードで記述される台形は、本来三角形である。そこで、不動産登記システムは、このレコードをそのまま作業用テーブル３に格納する（Ｓ３２）。その後、不動産登記システムは、制御をＳ３７に進める。
【００９１】
一方、Ｓ３１の判定で、左上点（Ｘ座標１、Ｙ座標１）と左下点（Ｘ座標３、Ｙ座標３）とが一致しなかった場合、次に、不動産登記システムは、右上点（Ｘ座標２、Ｙ座標２）と右下点（Ｘ座標４、Ｙ座標４）とが一致するか否かを判定する（Ｓ３３）。
【００９２】
そして、これらの点が一致する場合、当該レコードで記述される台形は、本来三角形である。そこで、不動産登記システムは、このレコードをそのまま作業用テーブル３に格納する（Ｓ３４）。その後、不動産登記システムは、制御をＳ３７に進める。
【００９３】
一方、Ｓ３３の判定で、右上点（Ｘ座標２、Ｙ座標２）と右下点（Ｘ座標４、Ｙ座標４）とが一致しなかった場合、不動産登記システムは、当該台形は、４頂点がすべて異なる（三角形では純粋な）台形であると判定する。そして、不動産登記システムは、当該台形を２つの三角形に分割して作業テーブル３に格納する（Ｓ３５、Ｓ３６）。
【００９４】
次に、不動産登記システムは、当該レコードが作業用テーブル２における最終レコードか否かを判定する。当該レコードが最終レコードでない場合、不動産登記システムは、制御をＳ３０に戻す。一方、当該レコードが最終レコードの場合、不動産登記システムは、処理を終了する。
【００９５】
以上のようにして、作業用テーブル３には、三角形に細分化された土地の図形が記録される。三角形から重心を求める手順は周知である。また、複数の図形（三角形）から土地の図形全体の重心を求める手順は、図１７の場合と同様である。
（７）２つの図形の重ね合わせ
上記で求めた結果（重心の座標）に基づき、２つの図形（登記所地図図形と地積測量図図形）の重心を一致させる。そのため、本不動産登記システムは、地積測量図図形の各点の座標を以下の数３により、シフトする。
【００９６】
【数３】
移動後の地積測量図図形の座標値＝移動前の地積測量図図形の座標値＋（登記所地図図形の重心座標値−地積測量図図形の重心座標値）
（８）回転による位置合わせ
次に、本不動産登記システムは、地積測量図図形と登記所地図図形の重なり合う面積が一番大きくなるよう、地積測量図図形の重心を中心に回転させる。
【００９７】
今、地積測量図図形の座標値を図２０に示すように、（Ｘａ、Ｙａ）、（Ｘｂ、Ｙｂ），．．．のように仮定する。このとき、回転前の座標データ、例えば、Ｘａ、Ｙａは、次の数４のように記述できる。
【００９８】
【数４】
Ｘａ＝Ｌ１ｃｏｓθ１；
Ｙａ＝Ｌ１ｓｉｎθ１；
ここで、Ｌ１は、重心座標（ＸＧ、ＹＧ）から頂点（Ｘａ、Ｙａ）までの距離、θ１は、線分（ＸＧ、ＹＧ）（Ｘａ、Ｙａ）がなす角度である。
【００９９】
今、回転角αｎ＝２π／（ｎ／ｍ）とすると（ｎはｍ以下の自然数である）、回転後の座標（Ｘｏ、Ｙｏ）は、以下の数５で記述できる。この場合、例えば、ｍ＝３０とすると、ｎ＝１，．．．，３０の３０段階で地積測量図図形は重心の回りを１周する。
【０１００】
【数５】
Ｘｏ＝Ｌ１ｃｏｓ（θ１＋αｎ）；
Ｙｏ＝Ｌ１ｓｉｎ（θ１＋αｎ）；
（８）重なり部分の面積計算
図２１により、登記所図形１００と、地積測量図図形１０１との重なり部分の面積算出方法を示す。この手順では、まず、登記所図形１００の辺と、地積測量図図形１０１の辺とで交差する辺の頂点を求める（以下、これを（xk1,yk1）,(xk2,yk2),...のように呼ぶことにする）。
【０１０１】
次に、登記所図形１００および地積測量図図形１０１が存在する領域を登記所地図図形１００の頂点のＸ座標（X1,X2,...）と、地積測量図図形１０１の頂点のＸ座標（Xa,Xb,...）と、上記交点のＸ座標（Xk1,Xk2,...）の各々を通るＹ軸に平行な直線により、帯状領域（図２１の１０２等）に分割する。
【０１０２】
各帯状領域においては、登記所図形１００の辺（上辺をＵ１、下辺をＬ１とする）および地積測量図図形１０１の辺（上辺をＵ２、下辺をＬ２とする）との間で、交差することなく大小関係が存在する。
【０１０３】
そして、上辺Ｕ１とＵ２を比較し、Ｙ軸方向に下方に存在する辺をＵとする。一方、下辺Ｌ１とＬ２とを比較し、Ｙ軸方向に上方に存在する辺をＬとする。このようにして、選択されたＬとＵとの間に存在する領域が２つの図形の重複領域となる。重複領域に対して、図１４、図１５または図１６で求めた手順で面積を求めればよい。また、各帯状領域において求めた面積を加算することで、重複領域全体の面積を求めることができる。
（９）回転と面積計算の繰り返しによる最大重複位置の決定
算出した重複領域の面積と、そのときの地積測量図図形１０１の頂点座標を不図示の作業用テーブル４に格納する。そして、さらに、上記αｎの値を１段階進めて、地積測量図図形１０１を回転させ、その場合の登記所地図図形１００と地積測量図図形１０１との重複領域の面積を求める。そして、求めた面積を作業用テーブル４に格納された重複面積と比較する。新たに求めた重複領域の面積が作業用テーブル４に格納された重複面積より大きい場合、その重複領域の面積と、そのときの地積測量図図形１０１の頂点座標を作業用テーブル４に格納する（上書きする）。このようにして、地積測量図図形１０１を１回転させ、上記重複領域が最大となる回転位置の地積測量図図形１０１の頂点座標（Ｘｅ，Ｙｅ）を地積測量図図形１０１の座標として、システム座標ＸおよびＹに格納する。
（１０）分筆線の生成
以下、申請書に添付され、図形地積測量図データベース２に登録されたデータに基づき、登記所地図データベース１のデータに分筆線（分筆線を形成する点座標値）を生成する。
（１０−１）分筆線＝ＯＮの線分の取り出し
まず、地積測量図図形データベース２１の結線情報より、「分筆線」＝ＯＮのレコードを抽出し、対応する地積測量図属性データベース２２のシステム座標から分筆線に対応する座標値を読み込み、これらの情報を作業用テーブル５（図２２参照）に格納する。ここで、システム座標は、上記、スケーリング、シフト、および回転処理の結果、その値が申請書に添付された値とは変更されている。
【０１０４】
図２３に、地積測量図図形ＤＢの結線情報より、「分筆線」＝ＯＮのレコードを抽出する処理のフローチャートを示す。
【０１０５】
この処理では、不動産登記システムは、まず、地積測量図図形データベース２１の結線情報のレコードを読み込む（Ｓ４０）。次に、不動産登記システムは、レコードがあるか否か（読み込めたか否か）を判定する（Ｓ４１）。レコードがなかった場合、不動産登記システムは、そのまま処理を終了する。
【０１０６】
一方、Ｓ４１の判定で、レコードがあった場合、そのレコードの「分筆線」のフィールドがＯＮか否かを判定する（Ｓ４２）。「分筆線」のレコードがＯＮでない場合、不動産登記システムは、制御をＳ４０に戻す。
【０１０７】
Ｓ４２の判定で、「分筆線」のレコードがＯＮの場合、不動産登記システムは、作業用テーブル５から、すでに設定済みのレコードを読み込む（Ｓ４３）。そして、不動産登記システムは、レコードがあるか否か（読み込めたか否か）を判定する（Ｓ４４）。
【０１０８】
そして、レコードを読み込めた場合、Ｓ４０で読み込んだ地積測量図図形データベース１１の点番号がＳ４３で読み込んだ作業用テーブル５のレコードの点番号と一致するか、否かを判定する（Ｓ４５）。
【０１０９】
そして、両者が一致する場合、そのレコードの点番号は、すでに作業用テーブル５に登録済みであるので、不動産登記システムは、そのまま制御をＳ４０に戻す。また、両者が一致しない場合、不動産登記システムは、次の作業用テーブル５のレコードを読むため、制御をＳ４３に戻す。
【０１１０】
一方、Ｓ４４の判定で、レコードがなかった場合、Ｓ４０で読み込んだ地積測量図図形データベース２１の点番号がＳ４３で読み込んだ作業用テーブル５のいずれのレコードの点番号とも一致しないことになる。すなわち、そのレコードは、まだ作業用テーブル５に登録されていないので、不動産登記システムは、その地積測量図図形データベース１１のレコードを作業用テーブル５に格納する（Ｓ４６）。その後、不動産登記システムは、制御をＳ４０に戻す。
（１０−２）分筆線の両端の線分の抽出
分筆線は、一般的には複数の線分から構成される。分筆線が複数の線分の組み合わせにより構成される場合、分筆前の土地の図形（登記所地図図形）と交点を有するのは、一連の線分のうち、両端の線分である。ここでは、そのような複数の線分からなる分筆線において、両端の線分を抽出する。
【０１１１】
例えば、分筆線が線分（Ｐ１，Ｐ２）（Ｐ２，Ｐ３）．．．（ＰＮ−１，ＰＮ）（ＰＮ，ＰＮ＋１）からなる場合、両端の線分の両端の点Ｐ１とＰＮ＋１以外は、重複して作業用テーブル５に登録されている。そこで、作業用テーブル５に登録された各点の点番号を読み込み、重複していない点を含む線分を抽出すれば、その線分が両端の線分になる。図２４に、そのような両端の線分を抽出するフローチャートを示す。
【０１１２】
この処理では、不動産登記システムは、まず、作業用テーブル５の点番号１に対する処理を実行する。すなわち、不動産登記システムは、レコードを読み込む（Ｓ５０）。そして、不動産登記システムは、レコードが存在するか否かを判定する（Ｓ５１）。
【０１１３】
作業用テーブル５のレコードが存在した場合、不動産登記システムは、作業用テーブル６のレコードを読み込む（Ｓ５２）そして、不動産登記システムは、レコードが存在するか否かを判定する（Ｓ５３）。
【０１１４】
Ｓ５３の判定で、作業用テーブル６のレコードが存在した場合、Ｓ５０において読み出した作業用テーブル５の点番号１の点が、作業用テーブル６から読み込まれたレコードの点番号と一致するか否かを判定する（Ｓ５４）。
【０１１５】
作業用テーブル５の点番号１の点が、作業用テーブル６から読み込まれたレコードの点番号と一致しない場合、不動産登記システムは、制御をＳ５２に戻す。このようにして、作業用テーブル６のレコードがなくなるまで、作業用テーブル５のレコードの点番号１と作業用テーブル６の点番号を比較する。
【０１１６】
このようにして、Ｓ５３の判定で、作業用テーブル６のレコードが存在しなかった場合、不動産登記システムは、作業用テーブル６に新規にレコードを作成し、現在作業用テーブル５から読み出し済みの点番号をそのレコードに登録する。さらに、そのレコードの「回数」を１に設定する（Ｓ５６）。その後、不動産登記システムは、Ｓ５０に制御を戻す。
【０１１７】
Ｓ５４の判定で、読み出した作業用テーブル５の点番号１の点がすでに作業用テーブル６に登録されている場合、不動産登記システムは、作業用テーブル６の該当レコードの「回数」に１を加える（Ｓ５５）。その後、不動産登記システムは、制御をＳ５０に戻す。
【０１１８】
また、Ｓ５１の判定で、作業用テーブル５のすべてのレコードが読み込まれ、残りのレコードがなくなった場合、不動産登記システムは、制御をＳ５７に進め、再度作業用テーブル５を最初から読み込む。点番号２について、上記と同様の処理を実行するためである。Ｓ５７からＳ６３の処理は、処理対象が作業用テーブル５の点番号１から点番号２に代わるだけで処理内容は同様である。
【０１１９】
このようにして、図２５に示す作業用テーブル６のように、作業用テーブル５の分筆線の情報から点番号と、その点番号の「回数」とが抽出される。不動産登記システムは、作業用テーブル６において、「回数」が２以上のレコードを削除する。分筆線の両端の線分を抽出するためである。
【０１２０】
次に、作業用テーブル６の点番号をキーに作業用テーブル５を検索し、取得したシステム座標を作業用テーブル６の「システムＸ座標」「システムＹ座標」に設定する。また同一線分上の反対側の点のシステム座標を、作業用テーブル６の「反対側の点のＸ座標」「反対側の点のＹ座標」に格納する。このようにして、図２６に示すように、登記所地図図形との交点を算出する分筆線の情報が作業用テーブル６に構成される。
（１０−３）分筆線の直線の式の生成
次に、不動産登記システムは、作業用テーブル５のシステム座標値から、線の式を生成し、作業用テーブルの６の「線の式」に格納する（図２７参照）。
（１０−４）登記所地図図形データベース１１から分筆対象筆の抽出
次に、不動産登記システムは、登記所地図図形データベース１１から、分筆対象の筆の結線情報およびシステム座標値を抽出し、作業用テーブル７に格納する。システム座標値から線分の式を生成し、あわせて格納する。図２８に、このようにして構成された作業用テーブル７（分筆対象筆）を示す。
（１０−５）分筆線と登記所地図図形との交点の算出
不動産登記システムは、作業用テーブル７のすべてのレコードに対して、作業用テーブル７の「Ｘ座標１」「Ｘ座標２」の範囲で作業用テーブル７の「線分の式」と作業用テーブル６の「線分の式」との間に交点をもつレコードを検索する。作業用テーブル７で該当するレコードが検索された場合、「交点の番号」に生成した交点番号を格納する（図２８参照）。
【０１２１】
次に、不動産登記システムは、生成された交点番号と交点座標を作業用テーブル８に新規登録する（図３０参照）。
（１０−６）分筆線の端点の交点への移動
分筆線を示す作業用テーブル６の各点は（１０−５）で求めた交点に移動する必要がある。この処理を行なう準備のため、不動産登記システムは、以下の手順により、作業用テーブル６のレコードの「交点Ｘ」「交点Ｙ」に移動先の交点座標を設定する。
Ｓ６０：作業用テーブル６のレコードを読み込む。レコードが読み込めない（終わり）場合は、処理を終了する。
Ｓ６１：作業用テーブル８のレコード（図３０の交点データ）を読み込む。レコードが読み込めない（終わり）場合は、Ｓ６０に戻る。
Ｓ６２：作業用テーブル６の「システムＸ座標」「システムＹ座標」から作業用テーブル８の交点までの距離と、「反対側の点のＸ座標」「反対側の点のＹ座標」から作業用テーブル８の交点までの距離を比較し、「システムＸ座標」「システムＹ座標」の方が近い場合は、交点座標を作業用テーブル６の「交点Ｘ」「交点Ｙ」に設定する。このようにして、作業用テーブル６のすべてのレコード（分筆線の両端の点番号）に対して、「交点Ｘ」「交点Ｙ」の値を設定する（図３１参照）。
（１０−７）分筆後の図形の作成
次に、不動産登記システムは、作業用テーブル７・作業用テーブル８から分筆後の筆図形（結線情報）を作成する。
【０１２２】
まず、不動産登記システムは、以下の手順で登記所地図の分筆後の結線情報を管理する作業用テーブル９を作成する。
Ｓ７０：登記所地図図形のシステム座標を有する作業用テーブル７のレコードを１件読み込む。読み込むレコードがない場合は処理を終了する。
Ｓ７１：「交点の点番号」≠空白 の場合、作業用テーブル７の「点１」「交点の点番号」と、「交点の点番号」「点２」を作業用テーブル９の「点１」「点２」に新規登録する。このとき、不動産登記システムは、座標値もあわせて設定する。交点の座標値については、作業用テーブル８から抽出する（図３２参照）。これにより、分筆線により分割された線分が作業用テーブル９に登録される。
Ｓ７２：「交点の点番号」＝空白 の場合、作業用テーブル７の「点１」「点２」を作業用テーブル１０の「点１」「点２」に新規登録する。座標値もあわせて設定する(図３２参照)。これにより、分筆線により分割されなかった線分が作業用テーブル９に登録される。
（１０−８）地番の設定
次に、不動産管理システムは、今回申請された地番を地積測量図図形データベース２１から抽出する。本実施形態では、申請された地番は、図９のように、地番「４−１」「４−１９」である。
【０１２３】
次に、不動産管理システムは、抽出した地番「４−１」「４−１９」と作業用テーブル８より、その地番と分筆線による交点番号とを作業用テーブル１０に新規登録する（図３３参照）。作業用テーブル１０は、登記所地図の分筆後の結線情報を作成するテーブルである
次に、不動産管理システムは、作業用テーブル９から、１つの交点（例えば、Ｋ１）と結線される点を検索する。交点Ｋ１に対して、Ｔ１とＴ２が検索される（図３４）。
【０１２４】
次に、不動産管理システムは、上記で検索されたＴ１とＴ２のどちらが地番「４−１」「４−１９」になるかを以下の手順で判定する。
【０１２５】
Ｓ８０：地積測量図図形データベース２１（結線情報）の該当筆（４−１と４−１９）のレコードを検索する（図９参照）。
【０１２６】
Ｓ８１：点番号をすべて抽出する（図９の点ｓ１〜点ｓ６が抽出される）。そして、「分筆線」＝ＯＮとなっているレコードの「点番号１」「点番号２」をその抽出結果から削除する。
【０１２７】
Ｓ８２：作業用テーブル７の各頂点（例えば、Ｔ１）と、Ｓ８１で算出した各点（Ｓ１〜Ｓ４）との距離を算出し、最短距離にある点番号を検索する。ここでは、Ｔ１に対して、Ｓ１が最短距離にある点であるとする（図３６参照）。
【０１２８】
Ｓ８３：Ｓ８２で検索した点Ｓ１をキーに地積測量図図形データベース２１を検索し、地番を抽出する。この例では、地番「４−１」が検索される（図３７参照）。つまり、点Ｋ１と点Ｔ１から構成される筆界線は、地番「４−１」のものであることが判明する。また、点Ｋ１と点Ｔ２から構成される筆界線は、地番「４−１９」のものであることが判明する。
【０１２９】
Ｓ８４： 作業用テーブル１０に、地番区域「東京都品川区八潮５丁目」＋地番「４−１」＋点番号１「Ｋ１」＋点番号２「Ｔ１」を新規登録する。さらに、地番区域「東京都品川区八潮５丁目」＋地番「４−１９」＋点番号１「Ｋ１」＋点番号２「Ｔ２」を新規登録する。さらに、作業用テーブル９から座標値を抽出し、作業用テーブル１０の該当するレコードに設定する（図３７参照）。
【０１３０】
Ｓ８５：作業用テーブル９の「Ｋ１」＋「Ｔ１」と「Ｋ１」＋「Ｔ２」のレコードを検索し、ＦＬＧ＝ＯＮを設定する（図３８上段参照）。
【０１３１】
Ｓ８６：作業用テーブル９からＴ１と結線される点（地番４−１側の点）を検索する。ただし、ＦＬＧ＝ＯＮのレコードは対象外とする。ここでは、例えば、Ｔ６が抽出される（図３８参照）。
【０１３２】
Ｓ８７：抽出された点番号「Ｔ６」をもとに、作業用テーブル１０に地番区域「東京都品川区八潮５丁目」＋地番「４−１」＋点番号１「Ｔ１」＋点番号２「抽出された点番号Ｔ６」を新規登録する。作業用テーブル９の該当レコードのＦＬＧに「ＯＮ」を設定する（図３７中段参照）。
【０１３３】
Ｓ８８：抽出された点番号「Ｔ６」をもとに、作業用テーブル１０に地番区域「東京都品川区八潮５丁目」＋地番「４−１」＋点番号１「Ｔ１」＋点番号２「抽出された点番号Ｔ６」を新規登録する（図３８下段）。
【０１３４】
Ｓ８６からＳ８８と同様の処理を点番号「Ｔ２」およびこれに結線される点番号「Ｔ３」に対して実行する（図３８参照）。このようにして、作業用テーブル９において、順次結線される点を取り出し、地番区域および地番を設定し、作業用テーブル１０に登録する（図３９下段参照）。
（１０−９）登記所地図データベース１の更新
次に、不動産登記システムは、登記所地図図形データベース１１の結線情報テーブルから、今回申請のあった分筆元の地番「４−１」のデータを削除する。そして、不動産登記システムは、作業用テーブル１０から、今回申請のあった分筆元の地番「４−１」のデータを登記所地図図形データベース１１の結線情報テーブルに登録する（図４０参照）。
【０１３５】
さらに、不動産登記システムは、登記所地図図形データベース１２の座標情報テーブルに、作業テーブル８から交点情報を登録する（図４１参照）。また、不動産登記システムは、地積測量図属性データベース２２から、分筆元地番「４−１」の地積を抽出し、登記所地図属性データベース１２の地積に格納する（図４２参照）。
【０１３６】
次に、登記所地図属性データベース１２の分筆元地番「４−１」のレコードをもとに、分筆先地番「４−１９」のレコードを新規登録する（分筆元地番「４−１」のレコードを複製し、地番を書き換える）。さらに、不動産登記システムは、地積測量図属性データベース２２から、分筆先地積を抽出し、新規に登録したレコードの地積に格納する（図４３参照）。
【０１３７】
＜効果＞
本不動産登記システムにより、不動産登記申請において分筆線を自動作成することが可能になり、登記官や登記所職員の作業負荷が軽減させることが可能になり、またシステム全体が非効率的になることを防止できる。
【０１３８】
すなわち、本システムは、申請書に添付された地積測量図図形の大きさの比率を登記所地図データベース１に登録された登記所地図図形の大きさに対応させるので、登記所地図に分筆線等の変更を付加するときの精度を向上できる。
【０１３９】
また、本システムは、申請書に添付された地積測量図図形と登記所地図データベース１に登録された登記所地図図形とについて、重心位置等を対応させるので、登記所地図に分筆線等の変更を付加するときの精度を向上できる。
【０１４０】
また、本システムは、申請書に添付された地積測量図図形と登記所地図データベース１に登録された登記所地図図形とを、重心位置を中心に重複部分が大きくなる位置まで相対的に回転させるので、２つの地図情報を正確に対応付け、登記所地図に分筆線等の変更を付加するときの精度を向上できる。
【０１４１】
また、本システムは、申請書に添付された地積測量図図形と登記所地図データベース１に登録された登記所地図図形とについて、分割比率が近づくように、登記所地図図形の分割位置を調整するので、登記所地図に分筆線等の変更を付加するときの精度を向上できる。
【０１４２】
＜コンピュータ読み取り可能な記録媒体＞
コンピュータに上記いずれかの機能を実現させるプログラムをコンピュータが読み取り可能な記録媒体に記録することができる。そして、コンピュータに、この記録媒体のプログラムを読み込ませて実行させることにより、その機能を提供させることができる。
【０１４３】
ここで、コンピュータ読み取り可能な記録媒体とは、データやプログラム等の情報を電気的、磁気的、光学的、機械的、または化学的作用によって蓄積し、コンピュータから読み取ることができる記録媒体をいう。このような記録媒体のうちコンピュータから取り外し可能なものとしては、例えばフレキシブルディスク、光磁気ディスク、CD-ROM、CD-R/W、DVD、DAT、８mmテープ、メモリカード等がある。
【０１４４】
また、コンピュータに固定された記録媒体としてハードディスクやＲＯＭ（リードオンリーメモリ）等がある。
【０１４５】
＜その他＞
さらに、本実施の形態は以下の発明を開示する。また、以下の各発明（以下付記と呼ぶ）のいずれかに含まれる構成要素を他の付記の構成要素と組み合わせてもよい。
（付記１） 第１の地図情報を登録したデータベースと、
前記第１の地図情報に対応して作成され、第１の地図情報に対する変更情報を付加した第２の地図情報をネットワークから受信する手段と、
前記第１の地図情報と第２の地図情報とを対照する手段と、
前記変更情報を第１の地図情報に反映する手段とを備える地図情報管理システム。
（付記２） コンピュータが、
第１の地図情報に対応して作成され、第１の地図情報に対する変更情報を付加した第２の地図情報をネットワークから受信するステップと、
前記第１の地図情報をデータベースから参照するステップと、
前記第１の地図情報と第２の地図情報とを対照するステップと、
前記変更情報を第１の地図情報に反映するステップとを備える地図情報管理方法。
（付記３） コンピュータに、
第１の地図情報に対応して作成され、第１の地図情報に対する変更情報を付加した第２の地図情報をネットワークから受信するステップと、
前記第１の地図情報をデータベースから参照するステップと、
前記第１の地図情報と第２の地図情報とを対照するステップと、
前記変更情報を第１の地図情報に反映する更新ステップとを実行させるプログラム。（１）
（付記４） 前記対照するステップは、前記第１の地図情報と第２の地図情報との大きさの比率を対応させるステップを含む付記３に記載のプログラム。（２）
（付記５） 前記対照するステップは、前記第１の地図情報により規定される所定の位置と第２の地図情報により規定される所定の位置とを対応させるステップを含む付記３に記載のプログラム。（３）
（付記６） 前記対照するステップは、前記所定の位置を中心に前記第１の地図情報と第２の地図情報とを相対的に回転させるステップを含む付記５に記載のプログラム。
（付記７） 前記変更情報は、第２の地図情報に規定される所定の領域を分割する分割情報であり、前記更新テップは、前記所定の領域に対応する対応領域を第１の地図情報において特定するステップと、
前記対応領域を前記分割情報により分割するステップとを有する付記３に記載のプログラム。
（付記８） 前記分割するステップは、前記所定の領域が分割された面積の分割比率と前記対応領域が分割された面積の分割比率とが近づくように前記対応領域の分割位置を調整するステップを含む付記７に記載のプログラム。
【０１４６】
【発明の効果】
以上説明したように、本発明によれば、地図データの管理システムにおいて、作業負荷を軽減し、システムの運用効率を向上させることができる。
【図面の簡単な説明】
【図１】 不動産登記システムの処理概要を示す図（１）
【図２】 不動産登記システムの処理概要を示す図（２）
【図３】 不動産登記システムに対して不動産登記申請時の処理手順を示す図
【図４】 地図閲覧申請時の処理手順を示す図
【図５】 不動産登記申請時の処理フローチャート
【図６】 地図閲覧申請時の処理フローチャート
【図７】 登記所地図図形データベース１１のデータ例を示す図
【図８】 登記所地図属性データベース１２のデータ例を示す図
【図９】 地積測量図図形データベース２１のデータ例を示す図
【図１０】地積測量図属性データベース２２のデータ例を示す図
【図１１】申請書データイメージを示す図
【図１２】地積測量図のデータ例（地積測量図Ａ）を示す図
【図１３】地積測量図のデータ格納手順を示す図
【図１４】土地の面積計算例を示す図（１）
【図１５】土地の面積計算例を示す図（２）
【図１６】土地の面積計算例を示す図（３）
【図１７】重心統合する手順の例１
【図１８】重心統合する手順の例２
【図１９】重心統合する手順の例２において、台形を三角形に分割する処理手順のフローチャート
【図２０】図形の回転を示す図
【図２１】図形の重複部の面積計算の例を示す図
【図２２】分筆線＝ＯＮの線分の取り出しの概要を示す図
【図２３】分筆線＝ＯＮの線分の取り出し手順を示す図
【図２４】分筆線が複数の線分からなる場合に、その両端の線分を抽出するフローチャート
【図２５】分筆線が複数の線分からなる場合に、その両端の線分を抽出する処理例を示す図
【図２６】登記所地図図形との交点を算出する分筆線の抽出結果
【図２７】線分の式を設定した作業用テーブル６の例
【図２８】分筆線と登記所地図図形との交点の算出処理の例
【図２９】分筆線と登記所地図図形との交点の算出処理の概要を示す図
【図３０】交点座標を格納する作業用テーブル８の例
【図３１】交点計算後の作業用テーブル６の例
【図３２】分筆後の結線情報を管理する作業用テーブル９の作成例
【図３３】地番の設定処理の例
【図３４】登記所地図図形において交点（Ｋ１）に接続される頂点（Ｔ１）を抽出する処理の例
【図３５】地積測量図において分筆後、「分筆線」＝ＯＮとなっているレコードを削除する処理例
【図３６】交点（Ｋ１）に接続される登記所地図図形の頂点Ｔ１から最短距離にある地積測量図図形の頂点を検索する処理の例
【図３７】地番を抽出する処理の例
【図３８】登記所地図図形分筆後の結線情報作成例
【図３９】地番区域の設定例
【図４０】分筆後の登記所地図データベース１の更新の例
【図４１】分筆後の登記所地図データベース１の更新の例
【図４２】分筆後の登記所地図データベース１の更新の例
【図４３】分筆後の登記所地図データベース１の更新の例
【符号の説明】
１ 登記所地図データベース
２ 地積測量図データベース
３ 登記所地図システム
４ 電子申請受付システム
５ 登記事項システム
１１ 登記所地図図形データベース
１２ 登記所地図属性データベース
２１ 地積測量図図形データベース
２２ 地積測量図属性データベース[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a map information management system.
[0002]
[Prior art]
In order to announce the location, status, owner, etc. of real estate, the real estate is registered with the registry office by a registration application and is generally disclosed. In addition, real estate registered in the registry office is also renewed by a registration application even in the case of change of owner or division of land (this is called "split").
[0003]
Currently, when applying to register a pen (land) at the registry office, a registrar manually creates a dividing line on the real estate registration map based on the land survey map attached to the registration application. is doing.
[0004]
Also, conventionally, in order to automatically create a stroke line on the real estate registry map, the stroke line drawn on the land survey map is automatically applied to the corresponding part on the registry map while maintaining its linearity by affine transformation. There was a technology to reflect (see Japanese Patent Application No. 7-41097).
[0005]
[Problems to be solved by the invention]
In the real estate registration as described above, the development of the real estate registration electronic application system using a network such as the Internet is expected to start from 2002. However, if the writing line creation work is still a manual work, the work load of the registrar and the registry office staff will not be reduced, and this work may become a bottleneck and the entire system may become inefficient.
[0006]
In addition, the conventional technique for automatically creating a stroke line by affine transformation is based on the premise that the number of corners of the corresponding brush figure in the geodetic survey map and the registry map is the same, making it difficult to use in actual real estate division work. Met.
[0007]
The reason is that, compared to a high-precision geodetic survey map that can accurately reproduce the site land, the registry map is less accurate and the shape (number of corners) of the brush corresponding to the geodetic survey map is often different. is there.
[0008]
Furthermore, in the current system that digitizes the registry map, the paper registry map is image-converted and vector-transformed, so even a slight distortion of the paper map can cause a slight break in the boundary between the land and the land. The number of corners may be larger than the actual number. For example, there are cases in which the shape of a square survey on a land survey map depicting the actual shape of the land becomes a shape of several tens / several hundreds on a registry map.
[0009]
In addition, the accuracy of the registry map cannot be improved even if a high-precision geodetic survey map is created. In order to make the map accurate to the public, map maintenance work (re-surveying the map) Was necessary and required enormous time.
[0010]
The present invention has been made in view of such problems of the conventional technology. That is, an object of the present invention is to reduce the workload and improve the operation efficiency of a system in a map data management system.
[0011]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the above problems. That is, the present invention is a program for causing a computer to manage map information,
Receiving from the network second map information created corresponding to the first map information and appended with change information for the first map information;
Referring to the first map information from the database;
Contrasting the first map information with the second map information;
An update step of reflecting the change information in the first map information.
[0012]
Here, the first map information is map information managed by the computer, and the second map information is created corresponding to the first map information, and change information for changing the first map information. including. Here, the map information includes maps of various locations managed by various organizations or groups, for example, a land surveying map managed by a predetermined organization, a registry map that is registered in the registry and announces the status of real estate, etc. included.
[0013]
Preferably, the contrasting step may include a step of associating a size ratio between the first map information and the second map information. Here, the ratio of size corresponds to the scale of the map, for example. The size ratio can be obtained, for example, by comparing the dimensions of the corresponding figures in the first map information and the second map information. As described above, the size ratio is associated with the first map information and the second map information, so that the accuracy when changing information is added to the first map information can be improved.
[0014]
Preferably, the step of comparing may include a step of associating a predetermined position defined by the first map information with a predetermined position defined by the second map information. The predetermined position is, for example, the center of gravity of the figure on the drawing. Thus, since the said predetermined position is matched about 1st map information and 2nd map information, the precision at the time of adding change information with respect to 1st map information can be improved.
[0015]
Preferably, the contrasting step may include a step of relatively rotating the first map information and the second map information around the predetermined position. In that case, what is necessary is just to rotate to the position where an overlapping part becomes large between 1st map information and 2nd map information. Thus, since the first map information and the second map information are relatively rotated to the position where the overlapping portion becomes large, the first map information and the second map information are accurately associated and changed. The accuracy when adding information can be improved.
[0016]
Preferably, the change information is division information for dividing a predetermined area defined in the second map information, and the update step specifies a corresponding area corresponding to the predetermined area in the first map information. And steps to
A step of dividing the corresponding area by the division information.
[0017]
Preferably, the step of dividing includes a step of adjusting a division position of the corresponding region so that a division ratio of an area obtained by dividing the predetermined region approaches a division ratio of an area obtained by dividing the corresponding region. It may be a thing. As described above, the first map information and the second map information are adjusted such that the division position is adjusted so that the division ratio approaches, so that it is possible to improve accuracy when dividing a predetermined area in the first map information. .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a real estate registration system according to an embodiment of the present invention will be described with reference to the drawings of FIGS.
[0019]
1 and 2 are diagrams showing an outline of processing of the real estate registration system, FIG. 3 is a diagram showing a processing procedure at the time of real estate registration application in the real estate registration system, and FIG. 4 is a map browsing application time. FIG. 5 is a process flowchart at the time of real estate registration application, FIG. 6 is a process flowchart at the time of map browsing application, and FIG. 7 is a data example of the registry map graphic database 11. 8 is a diagram showing an example of data in the registry map attribute database 12, FIG. 9 is a diagram showing an example of data in the geodetic survey figure graphic database 21, and FIG. FIG. 11 is a diagram showing a data example of the figure attribute database 22, FIG. 11 is a diagram showing an application form data image, and FIG. 12 is a diagram showing a data example of the land surveying map (land surveying map A). 13 FIG. 14 to FIG. 16 are diagrams illustrating examples of land area calculation, and FIGS. 17 to 19 are diagrams illustrating examples of procedures for integrating the center of gravity. 20 is a diagram showing the rotation of the figure, FIG. 21 is a diagram showing an example of calculating the area of the overlapping part of the figure, and FIG. Yes, FIG. 23 is a diagram showing a procedure for taking out a line segment with a stroke line = ON, and FIG. 24 is a flowchart for extracting line segments at both ends when the stroke line is composed of a plurality of line segments. FIG. 25 is a diagram showing a processing example of extracting line segments at both ends when the stroke line is composed of a plurality of line segments, and FIG. 26 is an extraction result of the stroke line for calculating the intersection with the registry map figure. Yes, FIG. 27 is an example of a stroke line that is an intersection calculation target, and FIG. FIG. 29 is a diagram showing an outline of calculation processing of intersections between a pen line and a registry map figure, and FIG. 30 stores intersection coordinates. FIG. 31 shows an example of the work table 8, FIG. 31 shows an example of the work table 6 after the intersection calculation, FIG. 32 shows a creation example of the work table 9 that manages the connection information after the separation, and FIG. Is an example of a lot number setting process, FIG. 34 is an example of a process of extracting a vertex (T1) connected to the intersection (K1) in the registry map figure, and FIG. Later, it is an example of processing for deleting a record in which “pencil line” = ON, and FIG. 36 shows a survey of a land surveying figure at the shortest distance from the vertex T1 of the registry map figure connected to the intersection (K1). FIG. 37 shows an example of processing for searching for vertices. FIG. 37 shows processing for extracting lot numbers. 38 is an example of connection information creation after registry map figure division, FIG. 39 is an example of setting lot number areas, and FIGS. 40 to 43 are registry map databases after division. It is an example of 1 update.
[0020]
<Process overview>
FIG. 1 and FIG. 2 show the processing outline of the real estate registration system. This system accepts a real estate registration application transmitted from the applicant through the network and registers it in the system database. FIG. 1 shows an overview of a process in which an applicant applies for land pen registration and registers the application contents in the system database. Land pen registration of land refers to registration in which land that has already been registered (a unique land number is assigned to this land) is divided into a plurality of areas, and a new lot number is assigned to each area.
[0021]
In this system, the applicant transmits application information for dividing the land into a plurality of areas based on a land survey map obtained by accurately surveying actual land ((1) in FIG. 1). In FIG. 1, the figure which shows the shape of a land is divided | segmented into two land by the dividing line L1. The real estate registration system receives the application information and reflects it in the system database (referred to as registration map database 1) ((2) in FIG. 1). In the present embodiment, a boundary line that divides a land into a plurality of areas is called a pen line.
[0022]
In that case, the accuracy of the information in the registry map database 1 is lower than the information based on the land surveying map in the application information. Therefore, the land shape in the application information does not necessarily match the land shape, dimensions, etc. in the registry map database 1.
[0023]
Therefore, this system applies various corrections to the shape of the land in the application information and reflects the contents in the registry map database 1. For example, this system calculates an area for each of the land in the application information and the corresponding land in the registration map database 1 ((3) in FIG. 1).
[0024]
And the figure which shows the shape of the land in application information is expanded or reduced so that the area may correspond in the range of a predetermined error ((4) of FIG. 1). In the example of FIG. 1, the land area in the application information is 20 and the corresponding land area registered in the registry map database 1 is 40. Therefore, processing is performed to enlarge each side of the land in the application information by SQRT (40/20) (where SQRT (x) means the square root of x).
[0025]
In addition, the system determines the position of the center of gravity of the land shape in the application information (hereinafter referred to as a land surveying diagram graphic A) and the corresponding land shape registered in the registry map database 1 (hereinafter referred to as the registry map graphic B). Corresponding to the center of gravity position. Then, the positions of the centers of gravity of the two figures are overlapped, and the two are relatively rotated so that the overlapping portion between them is maximized ((5) in FIG. 2).
In this way, even when two graphics are superimposed, the shape of the land registered in the registry map database 1 is inaccurate, so the two graphics do not match completely. That is, as shown in FIG. 2, there remains a deviation between the two figures. For this reason, one end point of the stroke line on the registry map figure B is, for example, the intersection P1 between the trace line L1 in the land survey map figure A and the side of the registry map figure B. The other end point of the stroke line on the registry map figure B is a point P2 on the extension line of the stroke line L1. In this way, the pen line P1P2 is set on the registry map figure B ((7) in FIG. 2).
[0026]
Furthermore, the present system is such that the area ratio (B1: B2) of the two figures divided from the registry map figure B by the dividing line P1P2 is the area of the figure divided by the dividing line L1 in the original area survey figure A. The position of the dividing line P1P2 is translated so as to match the ratio within a predetermined error range ((8) in FIG. 2). In this way, the present system registers the shape of the land drawn in the registry map database 1.
[0027]
FIG. 3 shows a processing procedure when there is a real estate registration application for the real estate registration system. As shown in FIG. 3, the real estate registration system includes an electronic application acceptance system 4, a registered item system 5, and a registry office map system 3.
[0028]
The electronic application acceptance system 4 accepts application information from the applicant's terminal 6, authenticates the applicant, and examines the format of the application information (S1). This application may be made by the applicant accessing a web page provided by the electronic application acceptance system 4, or may be applied separately by e-mail.
[0029]
Here, the application information includes a registration application and a land survey map. In addition, the applicant needs to be registered in advance in the user ID management database. Based on this user ID management database, the applicant is authenticated.
[0030]
Next, the electronic application acceptance system 4 distributes the application information to each corresponding system according to the application content (S2). For example, the registration application is distributed to the registration item system 5 and registration processing is executed (S3). In the registration process, for example, application information is received, the contents of the application information are subjected to a field survey by the registrar, and the application contents are registered (filled in) in the registered item database.
[0031]
In the real estate registration system, the registered item system 5 transmits the application information to the registry map system 3 by the registration process. However, the registration application receiving system 4, the registered item system 5, and the registry office map system 3 are not necessarily different computers, and two or more of them may be realized on the same computer. Each of these systems may be realized by distributed processing of a plurality of computers.
[0032]
The registry office map system 3 receives the application information from the registered item system 5 and executes map correction processing (S4). This map correction process is executed by a ground survey map storage means, a gravity center position calculation / superimposition means, and a stroke line generation means, which are application programs on a computer.
[0033]
The geodetic survey map storage means stores the geodetic survey map in the application information in the geodetic survey map database 2. The center-of-gravity position calculation / superimposition means matches the area between the shape of the land in the application information and the shape of the corresponding land in the registry map database 1, superimposes the center-of-gravity position, and the overlapping portion is the maximum. The relative rotation process is executed as follows.
[0034]
The pen line generation means generates a pen line in the figure of the corresponding land in the registry map database 1 from the pen line in the land survey map. In this way, the land that has been marked is registered in the registration map database 1.
[0035]
As shown in FIG. 3, in the present embodiment, the registry map database 1 includes a registry map graphic database 11 and a registry map attribute database 12. The land survey map database 2 includes a land survey map graphic database 21 and a land survey map attribute database 22. The contents (graphics and attributes) of these databases are updated by the map correction process.
[0036]
This registration result is reported from the registry map system 3 to the registered entry system 5. The registered item system 5 notifies the applicant's terminal 6 of the result of the registration application (S5). The notification of this result may be performed on a web page provided by the electronic application acceptance system 4, or may be notified separately by e-mail.
[0037]
FIG. 4 shows a processing procedure at the time of applying for map browsing. In the map browsing application, the applicant transmits a map browsing application form to the electronic application receiving system 4 via the network. The electronic application acceptance application system 4 accepts an application, authenticates it, and executes an examination (S1). Furthermore, the electronic application acceptance application system 4 distributes the application information to each corresponding system according to the application content (S2). For example, the map browsing application is transmitted to the registry map system 3.
[0038]
When receiving the map browsing application, the registry map system 3 executes a map publication process (S4A). In this process, the registry map system 3 refers to the registry map database 1 and, if necessary, the land survey map database 2 and searches for a map to be browsed. And a search result is notified to an applicant's terminal 6 through the electronic application reception system 4 (S5). The notification of this result may be performed on a web page provided by the electronic application acceptance system 4, or may be notified separately by e-mail.
[0039]
<Processing flow>
FIG. 5 shows a processing flowchart when applying for real estate registration in the real estate registration system. In this process, first, the electronic application acceptance system 4 receives a registration application and an attached material (land survey) (S10).
[0040]
Next, the electronic application acceptance system 4 distributes the application information to each corresponding system according to the application content (S11).
[0041]
Next, the registered item system 5 to which the application information is distributed executes the registration process (S12). Through this registration process, the registered item system 5 transmits the application information to the registry map system 3.
[0042]
The registry office map system 3 receives application information from the registered item system 5 and executes map correction processing. This map correction process is executed by a ground survey map storage means, a gravity center position calculation / superimposition means, and a stroke line generation means, which are application programs on a computer.
[0043]
The geodetic survey map storage means stores the geodetic survey map in the application information in the geodetic survey map database 2 (S13).
[0044]
The center-of-gravity position calculation / superimposition means matches the area between the shape of the land in the application information and the shape of the corresponding land in the registry map database 1, superimposes the center-of-gravity position, and the overlapping portion is the maximum. Thus, alignment by relative rotation is executed (S14).
[0045]
The pen line generation means generates a pen line in the figure of the corresponding land in the registry map database 1 from the pen line in the land survey map (S15). In this way, the map is corrected (S16), and the land that has been drawn is registered in the registry map database 1.
[0046]
This registration result is reported from the registry map system 3 to the electronic application reception system 4 through the registered item system 5. The electronic application acceptance system 4 notifies the applicant's terminal 6 of the result of the registration application (S17).
[0047]
FIG. 6 shows a processing flowchart at the time of a map browsing application. In the map browsing application, the applicant transmits a map browsing application form from the terminal 6 to the electronic application receiving system 4 via the network. The electronic application reception system 4 receives the application, authenticates it, and executes examination (S20).
[0048]
Furthermore, the electronic application acceptance system 4 distributes the application information to each corresponding system according to the application content (S21). For example, the map browsing application is transmitted to the registry map system 3.
[0049]
When receiving the map browsing application, the registry map system 3 executes a map publication process (S22). In this process, the registry map system 3 refers to the registry map database 1 and, if necessary, the land survey map database 2 from the link information, and searches for a map to be browsed (S23). In this way, a map of the land for which browsing has been applied is transmitted to the browser terminal 6.
[0050]
<Processing example>
Hereinafter, a processing example of the real estate registration system will be described.
(1) Database data example
FIG. 7 is a data example of the registry map graphic database 11 constituting the registry map database 1. The registry map graphic database 11 is a database for recording a graphic shape on a map, that is, a land shape. Hereinafter, the figure on the map registered in the registry map graphic database 11 is referred to as a registry map figure.
[0051]
As shown in FIG. 7, the registry map graphic database 11 includes connection information and coordinate information. The connection information is data including a lot number area (a so-called address) of a registered land, a lot number, and a point sequence indicating the land shape of the lot number.
[0052]
For example, in FIG. 7, it is shown that the lot number 4-1 in the lot number area “Yashio 5chome, Shinagawa-ku, Tokyo” is composed of straight lines (boundary lines, line segments) connecting the points with the point numbers T1 to T6. Has been.
[0053]
The coordinate information describes actual coordinates of each point of the point number described in the connection information. As shown in FIG. 7, the coordinate information includes a point number, system coordinates (X, Y), and public coordinates (X, Y).
[0054]
The point number is information for identifying each point. In addition, in this registry map system, map figures are managed with two types of “public coordinates” and “system coordinates”. “Public coordinates” are represented by a distance measured from a public reference point. The applied geodetic survey map is applied in public coordinates. However, instead of this, latitude and longitude may be simply used as public coordinates.
[0055]
“System coordinates” are coordinates on a computer that realizes the real estate registration system.
[0056]
FIG. 8 shows a data example of the registry map attribute database 12 constituting the registry map database 1. Each record of the registry map attribute database 12 has fields of a lot number area and a narrow lot number, a land area, a lot, a map number, a type, a system area, and a center of gravity that constitute a lot number in a broad sense. Yes. Each line in FIG. 8 corresponds to one record in the registry map attribute database 12.
[0057]
The lot number area and the narrow lot number are the same as in FIG. Land area is the land area of the lot number. The term “ground” refers to the purpose of use of land, for example, residential land, farmland, and the like. The map number is a symbol indicating a rectangular area where the land exists on a predetermined map. For example, “100” means a rectangular area designated by “A” on the vertical axis position and “100” on the horizontal axis position.
[0058]
The type refers to the type of map stored in the registry map database 1. For example, "Public map", "Article 17" (meaning the Article 17 map prescribed by a prescribed law), etc. are designated. The
[0059]
The system area is a description of the land area in units on the real estate registration system. The center of gravity is the position coordinates of the center of gravity calculated from the shape of the land. In the real estate registration system, the center of gravity is described by the system coordinates shown in FIG. However, implementation of this invention is not limited to such a process, You may describe a gravity center using a public coordinate.
[0060]
FIG. 9 shows a data example of the geodetic survey figure graphic database 21 constituting the geodetic survey database 2. In the embodiment, the graphic registered in the geodetic survey diagram graphic database 21 is referred to as a geodetic survey diagram graphic.
[0061]
The structure of the land survey map graphic database 21 is the same as that of the registry map graphic database 11 of FIG. However, the land survey map database 21 is characterized in that the registered data is more accurate than the registry map graphic database 11.
[0062]
FIG. 10 shows a data example of the geodetic survey map attribute database 22 constituting the geodetic survey map database 2. The land surveying map attribute database 22 is different from the structure of the registry map attribute database 12 of FIG. 8 in that it does not have a grid, map number, type, and system area. Further, the land surveying map attribute database 22 further includes a land surveying map number and a representative lot number with respect to the registry map attribute database 12. The geodetic survey map number is a number for identifying the data of the local survey survey map in the geodetic survey map database 2. The representative lot number is, for example, information indicating an original lot number (parent's lot number) before the division at the time of the divisional registration application.
(2) Receiving electronically requested content
The real estate registration system executes real estate registration by receiving content electronically applied by the applicant. This real estate registration system performs “reception”, “certificate confirmation by certificate authority”, “formal examination”, “billing confirmation”, etc. based on a predetermined electronic notification specification.
[0063]
In this system, the electronic reception system 4 built in each department receives application information, and distributes the application information to each system based on the application contents. The following is an example of “Application for Land Separation” in a real estate registration application.
[0064]
FIG. 11 shows an application data image that the applicant submits to the real estate registration system in an application (real estate registration application, browsing application, etc.). This application has columns for the purpose of registration, location, lot number, location, cause, map (file name storing map data), cause of ownership, owner location, and owner name.
[0065]
FIG. 12 shows a data example of the land survey map (land survey map A). The data of the land survey map is, for example, data attached by the applicant at the time of applying for land pen registration.
[0066]
On the real estate registration system of this embodiment, the data of the geodetic survey map is described in XML (eXtensible Markup Language). However, the implementation of the present invention is not limited to such data specifications. For example, the data of a geodetic survey map is described in bitmap data (various formats defined by computer manufacturers, computer program developers or computer organizations, etc.), predetermined vector data (directional segment data), etc. May be.
[0067]
As shown in FIG. 12, the data of the geodetic survey map is composed of elements such as a land area for each lot number, a survey point coordinate value, and a shape for each lot number. As shown in FIG. 12, the data of the geodetic survey map includes data of a plurality of lot numbers. This is the case, for example, for an application for land pen registration.
[0068]
In the example of FIG. 12, 140 square meters and 60 square meters are recorded for two lot numbers 1 and 4 and 19.
[0069]
In addition, as the data of the survey point coordinate values, survey points included in the entire land described in one land area survey map (the survey points for all brushes even when the area survey map includes multiple brushes) Is described. The data of the survey point coordinate value has fields of survey point, X, and Y.
[0070]
Among these, in the survey point field, a symbol (for example, a number) for identifying the survey point in the data of each area survey diagram is described. In the X and Y fields, X and Y coordinates (public coordinates) having a predetermined reference point as an origin are described.
[0071]
As the shape data for each lot number, the land shape of each lot number is described using survey points. In the present embodiment, as shown in FIG. 12, the shape of each lot number is composed of a plurality of records including a lot number, survey point 1, survey point 2, and a stroke line.
[0072]
In FIG. 12, for example, the land with the lot number 1 is [1,5] [5,6] [6,4] and [4,1] according to the set of [surveying point 1, surveying point 2]. It is described as follows. In addition, the land number 19 is described as [5,2] [2,3] [3,6] and [6,5] by the set of [Surveying point 1, surveying point 2]. Has been. Further, each of these survey points is defined by data of survey point coordinate values.
[0073]
Whether the line indicated by the set of [Surveying point 1, Surveying point 2] is a dividing line of two lands ("ON" in FIG. 12) or not (blank in FIG. 12) In the case of
[0074]
FIG. 13 shows the data storage procedure of the land survey map. FIG. 13 shows a procedure for storing the received data of the geodetic survey map in the geodetic survey map graphic database 21 and the geodetic survey map attribute database 22 attached to the application form.
[0075]
That is, the lot number data of the geodetic survey map is used as the lot number data of the geodetic survey map graphic database 21 (connection information thereof) and the geodetic survey map attribute database 22. In this case, the first lot number included in the “data indicating the land area for each lot number” of the applied land area survey map is stored as the representative lot number in the geodetic survey map attribute database 22.
[0076]
Further, the data of the survey point coordinate values of the applied geodetic survey map is stored as coordinate information (public coordinates X, Y) of the geodetic survey diagram database 21 and further converted into system coordinates.
[0077]
Further, the shape data for each applied lot number is stored as connection information of the geodetic survey figure database 21.
(3) Search the registry map database
Upon receipt of “Application for Land Separation”, the real estate registration system searches the registry map graphic database 11 and the registry map attribute database 12 based on the representative lot number of the data stored in the land surveying map attribute database 22. . Then, the coordinate information (system coordinates) of the brush of the representative lot number is read out and stored in a work table (not shown) (this is called the work table 1).
[0078]
Further, the coordinate information (system coordinates) of the lot number is read out from the geodetic survey figure graphic database 21 and the geodetic survey figure attribute database 22 and stored in a work table (not shown) (this is called the work table 2).
(4) Area calculation
Next, this real estate registration system calculates | requires the area (area of the representative lot number before dividing) of the registry map figure from the coordinate value of the said work table 1. FIG. Further, the real estate registration system obtains the area of the representative lot number (area of the representative lot number before dividing) from the coordinate value of the work table 2 in the land surveying map.
[0079]
FIG. 14 shows an example of land area calculation in the real estate registration system. In the calculation example of FIG. 14, the existence area of this figure is changed into a belt-like area (in the case of FIG. 14, the areas indicated by D <b> 1 to D <b> 5) by a straight line parallel to the Y axis passing through the vertex of the figure indicating the shape of the land. To divide.
[0080]
And in each belt-like area, each belt-like area is obtained by double-integrating the difference of the straight line formula (for example, f6 (x) -f5 (x) of the belt-like area D1) indicating the shape of the land. The area of land in can be calculated. And the area of the whole land (the said brush) is computable by adding the area of the land of each strip | belt-shaped area | region.
[0081]
In addition, as shown in FIG. 15, when there are a plurality of discontinuous parts of a figure in a region (a region sandwiched by straight lines X = Xa and X = Xb), each individual graphic part The above double integration is executed and the area is added.
[0082]
FIG. 16 shows another procedure for area calculation. Since the registry map is formed only with straight lines, each region (for example, D1 to D5) is always a triangle or a quadrangle. For this reason, as shown in FIG. 16, each region may be calculated as a difference in trapezoidal area.
(5) Coordinate value correction based on area ratio
The coordinate value of the land survey map figure is corrected so that the area of the registry map figure calculated above and the area of the land survey map figure are the same value. That is,
[0083]
[Expression 1]
Coordinate value after correction of area survey map = coordinate value before correction of area survey map x SQRT (area of registry map figure / area of area survey map figure)
Here, SQRT (x) is the square root of x.
(6) Calculation of the center of gravity
Next, the barycentric coordinate values of the land survey map figure and the registry map figure are calculated. For example, the position of the center of gravity of the figure in the area 1 in FIG. 14 (which is now called a closed area) can be obtained by the following formula 2.
[0084]
[Expression 2]

As described above, the barycentric positions of the figures obtained in the respective closed regions can be integrated by the formula shown in FIG. In FIG. 17, the center of gravity (XG, YG) obtained by integrating both figures is obtained from the figure of area S1, the center of gravity (Xg1, Yg1), and the center of gravity of the figure of area S2, center of gravity (Xg2, Yg2). Yes. By sequentially repeating the procedure of FIG. 17, the center of gravity of the entire figure composed of a plurality of closed regions can be obtained.
[0085]
18 and 19 show a second procedure for obtaining the center of gravity. 18 is a trapezoidal vertex coordinate in each region of FIG. 13 (D1 to D5 are indicated by region numbers 1 to 5 respectively) (when the figure is a triangle, the two vertex coordinates match). And a trapezoid hypotenuse formula (in FIG. 17, line segment formula 1, line segment formula 2 in FIG. 17).
[0086]
Here, the vertex coordinates of the trapezoid are the upper left point (X coordinate 1, Y coordinate 1), upper right point (X coordinate 2, Y coordinate 2), lower left point (X coordinate 3, Y coordinate 3), and right of each trapezoid. The lower points (X coordinate 4, Y coordinate 4) are described in this order. Also, line segment formula 1 and line segment formula 2 are linear formulas describing the upper hypotenuse and lower hypotenuse of the trapezoid in each region, respectively.
[0087]
The work table 3 of FIG. 18 holds data by dividing each trapezoid registered in the work table 2 into triangles. The work table 3 has fields for storing the vertices of the triangle (X coordinate 1, Y coordinate 1) (X coordinate 2, Y coordinate 2) (X coordinate 3, Y coordinate 3).
[0088]
FIG. 19 shows a process of dividing the trapezoid registered in the work table 2 into triangles and registering it in the work table 3.
[0089]
In this process, the real estate registration system first reads a record from the work table 2 (S30). Then, the real estate registration system determines whether or not the upper left point (X coordinate 1, Y coordinate 1) of the trapezoid of the work table 2 matches the lower left point (X coordinate 3, Y coordinate 3) (S32). .
[0090]
If these points match, the trapezoid described in the record is essentially a triangle. Therefore, the real estate registration system stores this record in the work table 3 as it is (S32). Thereafter, the real estate registration system advances the control to S37.
[0091]
On the other hand, if it is determined in S31 that the upper left point (X coordinate 1, Y coordinate 1) and the lower left point (X coordinate 3, Y coordinate 3) do not match, the real estate registration system then selects the upper right point (X It is determined whether or not the coordinate 2, Y coordinate 2) and the lower right point (X coordinate 4, Y coordinate 4) match (S33).
[0092]
If these points match, the trapezoid described in the record is essentially a triangle. Therefore, the real estate registration system stores this record in the work table 3 as it is (S34). Thereafter, the real estate registration system advances the control to S37.
[0093]
On the other hand, if the upper right point (X coordinate 2, Y coordinate 2) and the lower right point (X coordinate 4, Y coordinate 4) do not match in the determination of S33, the real estate registration system determines that the trapezoid has four vertices. Are all trapezoids that are different (pure in a triangle). Then, the real estate registration system divides the trapezoid into two triangles and stores them in the work table 3 (S35, S36).
[0094]
Next, the real estate registration system determines whether or not the record is the last record in the work table 2. If the record is not the final record, the real estate registration system returns the control to S30. On the other hand, if the record is the last record, the real estate registration system ends the process.
[0095]
As described above, the land table subdivided into triangles is recorded in the work table 3. The procedure for obtaining the center of gravity from a triangle is well known. The procedure for obtaining the center of gravity of the entire land figure from a plurality of figures (triangles) is the same as in FIG.
(7) Superposition of two figures
Based on the result (coordinate of the center of gravity) obtained above, the centers of gravity of the two figures (a registry map figure and a land surveying figure figure) are matched. Therefore, the real estate registration system shifts the coordinates of each point of the land surveying figure by the following equation (3).
[0096]
[Equation 3]
Coordinate value of the geodetic survey figure after movement = coordinate value of the geodetic survey figure before movement + (centroid coordinate value of the registry map figure-centroid coordinate value of the geodetic survey figure)
(8) Positioning by rotation
Next, the real estate registration system rotates the center of the geodetic survey map figure so that the overlapping area of the geodetic survey map figure and the registry map figure becomes the largest.
[0097]
Now, as shown in FIG. 20, the coordinate values of the geodetic survey figure are (Xa, Ya), (Xb, Yb),. . . Assuming that At this time, coordinate data before rotation, for example, Xa and Ya can be described as in the following equation (4).
[0098]
[Expression 4]
Xa = L1 cos θ1;
Ya = L1sin θ1;
Here, L1 is the distance from the barycentric coordinates (XG, YG) to the vertex (Xa, Ya), and θ1 is the angle formed by the line segment (XG, YG) (Xa, Ya).
[0099]
Assuming that the rotation angle αn = 2π / (n / m) (n is a natural number equal to or less than m), the coordinates (Xo, Yo) after rotation can be described by the following formula 5. In this case, for example, if m = 30, n = 1,. . . , 30 in 30 steps, the geodetic survey figure makes one round around the center of gravity.
[0100]
[Equation 5]
Xo = L1 cos (θ1 + αn);
Yo = L1sin (θ1 + αn);
(8) Area calculation of overlapping part
FIG. 21 shows a method for calculating the area of the overlapping portion between the registry figure 100 and the land surveying figure 101. In this procedure, first, the vertices of the sides intersecting with the sides of the registry figure 100 and the sides of the geodetic survey figure 101 are obtained (hereinafter referred to as (xk1, yk1), (xk2, yk2), ... Will be called).
[0101]
Next, the area where the registry figure 100 and the geodetic survey figure 101 exist is set to the X coordinate (X1, X2,...) Of the vertex of the registry map figure 100 and the X coordinate of the vertex of the geodetic survey figure 101 ( Xa, Xb,...) And a straight line parallel to the Y axis passing through the X coordinates (Xk1, Xk2,.
[0102]
In each belt-like area, intersect between the side of the registry figure 100 (upper side is U1 and the lower side is L1) and the side of the land survey diagram figure 101 (upper side is U2 and the lower side is L2). There is a big-small relationship.
[0103]
Then, the upper sides U1 and U2 are compared, and the side existing below in the Y-axis direction is defined as U. On the other hand, the lower sides L1 and L2 are compared, and the side existing above in the Y-axis direction is set to L. In this way, the area existing between the selected L and U becomes the overlapping area of the two figures. What is necessary is just to obtain | require an area with the procedure calculated | required in FIG.14, FIG.15 or FIG. Moreover, the area of the whole overlapping region can be obtained by adding the areas obtained in the respective belt-like regions.
(9) Determination of maximum overlap position by repeated rotation and area calculation
The calculated overlap area and the vertex coordinates of the geodetic survey figure 101 at that time are stored in a work table 4 (not shown). Further, the value of αn is advanced by one step, the land survey map figure 101 is rotated, and the area of the overlapping area between the registry map figure 100 and the land survey map figure 101 is obtained. Then, the obtained area is compared with the overlapping area stored in the work table 4. If the newly determined area of the overlapping area is larger than the overlapping area stored in the work table 4, the area of the overlapping area and the vertex coordinates of the geodetic survey figure 101 at that time are stored in the work table 4 ( Overwrite). In this way, the geodetic survey figure 101 is rotated once, and the vertex coordinates (Xe, Ye) of the geodetic survey figure 101 at the rotation position where the overlapping area is the maximum are used as the coordinates of the geodetic survey figure 101, and the system coordinates Store in X and Y.
(10) Generation of stroke line
Hereinafter, based on the data attached to the application form and registered in the figure land survey map database 2, a dividing line (point coordinate value forming the dividing line) is generated in the data of the registry map database 1.
(10-1) Dispensing line = ON
First, from the connection information of the geodetic survey map graphic database 21, a record of “pencil line” = ON is extracted, and the coordinate values corresponding to the pendulum line are read from the system coordinates of the corresponding geodetic survey map attribute database 22, and these information Is stored in the work table 5 (see FIG. 22). Here, the system coordinate is changed from the value attached to the application form as a result of the above scaling, shift, and rotation processes.
[0104]
FIG. 23 shows a flowchart of processing for extracting a record of “pencil line” = ON from the connection information of the land surveying figure graphic DB.
[0105]
In this process, the real estate registration system first reads a connection information record in the land survey map graphic database 21 (S40). Next, the real estate registration system determines whether there is a record (whether it has been read) (S41). If there is no record, the real estate registration system ends the process.
[0106]
On the other hand, if it is determined in S41 that there is a record, it is determined whether or not the “pen line” field of the record is ON (S42). If the “pencil line” record is not ON, the real estate registration system returns the control to S40.
[0107]
If it is determined in S42 that the “pencil line” record is ON, the real estate registration system reads an already set record from the work table 5 (S43). Then, the real estate registration system determines whether there is a record (whether it has been read) (S44).
[0108]
If the record can be read, it is determined whether or not the point number of the geodetic survey figure database 11 read in S40 matches the point number of the record in the work table 5 read in S43 (S45).
[0109]
And when both correspond, since the dot number of the record has already been registered in the work table 5, the real estate registration system returns control to S40 as it is. If the two do not match, the real estate registration system returns the control to S43 in order to read the next record in the work table 5.
[0110]
On the other hand, if it is determined in S44 that there is no record, the point number of the geodetic survey figure database 21 read in S40 does not match the point number of any record in the work table 5 read in S43. That is, since the record is not yet registered in the work table 5, the real estate registration system stores the record of the land survey map graphic database 11 in the work table 5 (S46). Thereafter, the real estate registration system returns the control to S40.
(10-2) Extraction of line segments at both ends of a stroke line
A stroke line is generally composed of a plurality of line segments. When the dividing line is composed of a combination of a plurality of line segments, it is the line segments at both ends of the series of line segments that have intersections with the figure of the land before registration (registration office map figure). Here, line segments at both ends are extracted from such a stroke line composed of a plurality of line segments.
[0111]
For example, the stroke line is a line segment (P1, P2) (P2, P3). . . In the case of (PN-1, PN) (PN, PN + 1), except for the points P1 and PN + 1 at both ends of the line segment at both ends, they are registered in the work table 5 redundantly. Therefore, when the point number of each point registered in the work table 5 is read and a line segment including a non-overlapping point is extracted, the line segment becomes a line segment at both ends. FIG. 24 shows a flowchart for extracting such line segments at both ends.
[0112]
In this process, the real estate registration system first executes a process for point number 1 in the work table 5. That is, the real estate registration system reads a record (S50). Then, the real estate registration system determines whether or not a record exists (S51).
[0113]
When the record of the work table 5 exists, the real estate registration system reads the record of the work table 6 (S52), and the real estate registration system determines whether or not the record exists (S53).
[0114]
If it is determined in S53 that there is a record in the work table 6, whether the point number 1 in the work table 5 read in S50 matches the point number in the record read from the work table 6 or not. Is determined (S54).
[0115]
When the point number 1 in the work table 5 does not match the point number of the record read from the work table 6, the real estate registration system returns the control to S52. In this way, the point number 1 of the record in the work table 5 is compared with the point number in the work table 6 until there are no more records in the work table 6.
[0116]
In this way, when the record of the work table 6 does not exist in the determination of S53, the real estate registration system creates a new record in the work table 6 and has already been read from the work table 5 Register the number in the record. Further, the “number of times” of the record is set to 1 (S56). Thereafter, the real estate registration system returns control to S50.
[0117]
If the point of point number 1 of the read work table 5 is already registered in the work table 6 in the determination of S54, the real estate registration system adds 1 to the “number of times” of the corresponding record in the work table 6. (S55). Thereafter, the real estate registration system returns the control to S50.
[0118]
If it is determined in S51 that all the records in the work table 5 are read and there are no remaining records, the real estate registration system advances the control to S57 and reads the work table 5 from the beginning again. This is because the same processing as described above is executed for the point number 2. The processing contents of S57 to S63 are the same except that the processing target is changed from point number 1 to point number 2 of the work table 5.
[0119]
In this way, as in the work table 6 shown in FIG. 25, the point number and the “number of times” of the point number are extracted from the stroke line information of the work table 5. The real estate registration system deletes the record whose “number of times” is 2 or more in the work table 6. This is for extracting the line segments at both ends of the stroke line.
[0120]
Next, the work table 5 is searched using the point number of the work table 6 as a key, and the acquired system coordinates are set to “system X coordinate” and “system Y coordinate” of the work table 6. Further, the system coordinates of the opposite point on the same line segment are stored in the “X coordinate of the opposite point” and “Y coordinate of the opposite point” of the work table 6. In this way, as shown in FIG. 26, information on the stroke line for calculating the intersection with the registry map figure is configured in the work table 6.
(10-3) Generation of straight line expression
Next, the real estate registration system generates a line formula from the system coordinate values of the work table 5 and stores it in “Line Formula” 6 of the work table (see FIG. 27).
(10-4) Extraction of target brush from registry map graphic database 11
Next, the real estate registration system extracts connection information and system coordinate values of the brushes to be separated from the registry map graphic database 11 and stores them in the work table 7. Generates a line segment expression from the system coordinate values and stores it together. FIG. 28 shows the work table 7 (split target brush) configured as described above.
(10-5) Calculating the intersection of the stroke line and the registry map figure
In the real estate registration system, the “line segment formula” and the work table in the work table 7 within the range of “X coordinate 1” and “X coordinate 2” in the work table 7 are set for all the records in the work table 7. A record having an intersection with “6” is calculated. When the corresponding record is searched in the work table 7, the generated intersection number is stored in “intersection number” (see FIG. 28).
[0121]
Next, the real estate registration system newly registers the generated intersection number and intersection coordinates in the work table 8 (see FIG. 30).
(10-6) Movement of the end point of the scribe line to the intersection
Each point on the work table 6 indicating the stroke line needs to move to the intersection obtained in (10-5). In preparation for performing this process, the real estate registration system sets the coordinates of the movement destination at the “intersection X” and “intersection Y” in the record of the work table 6 according to the following procedure.
S60: The record of the work table 6 is read. If the record cannot be read (end), the process ends.
S61: A record (intersection data in FIG. 30) of the work table 8 is read. If the record cannot be read (end), the process returns to S60.
S62: Work from the “system X coordinate” “system Y coordinate” of the work table 6 to the intersection of the work table 8 and the “X coordinate of the opposite point” “Y coordinate of the opposite point” The distances to the intersections in the table 8 are compared, and when the “system X coordinate” and “system Y coordinate” are closer, the intersection coordinates are set to “intersection X” and “intersection Y” in the work table 6. In this way, the values of “intersection point X” and “intersection point Y” are set for all records (point numbers at both ends of the stroke line) of the work table 6 (see FIG. 31).
(10-7) Creation of figure after dividing
Next, the real estate registration system creates a brush figure (connection information) after the separation from the work table 7 and the work table 8.
[0122]
First, the real estate registration system creates a work table 9 for managing the connection information after dividing the registry map in the following procedure.
S70: One record of the work table 7 having the system coordinates of the registry map figure is read. If there is no record to be read, the process ends.
S71: When “intersection point number” ≠ blank, “point 1” “intersection point number” in work table 7 and “intersection point number” “point 2” are “point 1” in work table 9 Newly register “Point 2”. At this time, the real estate registration system also sets coordinate values. The coordinate value of the intersection is extracted from the work table 8 (see FIG. 32). As a result, the line segment divided by the stroke line is registered in the work table 9.
S72: When “Point number of intersection” = blank, “Point 1” and “Point 2” of the work table 7 are newly registered as “Point 1” and “Point 2” of the work table 10. Coordinate values are also set (see FIG. 32). As a result, the line segment that is not divided by the stroke line is registered in the work table 9.
(10-8) Setting of lot number
Next, the real estate management system extracts the lot number applied this time from the land surveying figure graphic database 21. In the present embodiment, the applied lot numbers are lot numbers “4-1” and “4-19” as shown in FIG.
[0123]
Next, the real estate management system newly registers the lot number “4-1” and “4-19” and the intersection number based on the stroke line with the lot number “4-1” and “4-19” in the work table 10 (see FIG. 33). ). The work table 10 is a table for creating connection information after dividing the registry map.
Next, the real estate management system searches the work table 9 for a point connected to one intersection (for example, K1). T1 and T2 are searched for the intersection K1 (FIG. 34).
[0124]
Next, the real estate management system determines which of the searched T1 and T2 is the lot numbers “4-1” and “4-19” according to the following procedure.
[0125]
S80: The record of the corresponding brush (4-1 and 4-19) in the land survey map graphic database 21 (connection information) is searched (see FIG. 9).
[0126]
S81: All point numbers are extracted (points s1 to s6 in FIG. 9 are extracted). Then, “point number 1” and “point number 2” of the record in which “pencil line” = ON are deleted from the extraction result.
[0127]
S82: The distance between each vertex (for example, T1) of the work table 7 and each point (S1 to S4) calculated in S81 is calculated, and the point number at the shortest distance is searched. Here, it is assumed that S1 is the shortest distance from T1 (see FIG. 36).
[0128]
S83: The geodetic survey figure database 21 is searched using the point S1 searched in S82 as a key, and a lot number is extracted. In this example, the lot number “4-1” is searched (see FIG. 37). That is, it is found that the stroke line composed of the point K1 and the point T1 is the lot number “4-1”. In addition, it is found that the stroke line composed of the point K1 and the point T2 is the lot number “4-19”.
[0129]
S84: The lot number area “5-chome Yashio Shinagawa-ku, Tokyo” + the lot number “4-1” + the point number 1 “K1” + the point number 2 “T1” is newly registered in the work table 10. Further, the lot number area “5-chome Yashio, Shinagawa-ku, Tokyo” + lot number “4-19” + point number 1 “K1” + point number 2 “T2” is newly registered. Further, the coordinate value is extracted from the work table 9 and set in the corresponding record of the work table 10 (see FIG. 37).
[0130]
S85: The records of “K1” + “T1” and “K1” + “T2” in the work table 9 are searched, and FLG = ON is set (see the upper part of FIG. 38).
[0131]
S86: A point (point on the lot number 4-1 side) connected to T1 is searched from the work table 9. However, records with FLG = ON are excluded. Here, for example, T6 is extracted (see FIG. 38).
[0132]
S87: Based on the extracted point number “T6”, the work table 10 includes a lot number area “Yashio 5-chome, Shinagawa-ku, Tokyo” + lot number “4-1” + point number 1 “T1” + point number 2 “ The extracted point number T6 "is newly registered. “ON” is set in the FLG of the corresponding record in the work table 9 (see the middle of FIG. 37).
[0133]
S88: Based on the extracted point number “T6”, the work table 10 includes a lot number area “Yashio 5-chome, Shinagawa-ku, Tokyo” + lot number “4-1” + point number 1 “T1” + point number 2 “ The extracted point number T6 "is newly registered (lower part of FIG. 38).
[0134]
The same processing from S86 to S88 is executed for the point number “T2” and the point number “T3” connected thereto (see FIG. 38). In this way, the points to be sequentially connected are extracted from the work table 9, the lot number area and the lot number are set, and registered in the work table 10 (see the lower part of FIG. 39).
(10-9) Updating the registry map database 1
Next, the real estate registration system deletes the data of the part number “4-1” of the original stroke where the application was made from the connection information table of the registry map graphic database 11. Then, the real estate registration system registers the data of the lot number “4-1” of the original stroke application that was applied this time from the work table 10 in the connection information table of the registry map graphic database 11 (see FIG. 40).
[0135]
Furthermore, the real estate registration system registers the intersection information from the work table 8 in the coordinate information table of the registry map graphic database 12 (see FIG. 41). In addition, the real estate registration system extracts the land area of the handwriting origin lot number “4-1” from the land surveying map attribute database 22 and stores it in the land area of the registry map attribute database 12 (see FIG. 42).
[0136]
Next, based on the record of the branch origin lot number “4-1” in the registry map attribute database 12, a record of the branch destination lot number “4-19” is newly registered (record of the branch origin lot number “4-1”). Duplicate and rewrite the lot number). Further, the real estate registration system extracts the pen tip area from the land surveying map attribute database 22 and stores it in the newly registered record (see FIG. 43).
[0137]
<Effect>
With this real estate registration system, it becomes possible to automatically create a stroke line in real estate registration applications, which can reduce the workload of registrars and registry office staff, and the entire system becomes inefficient. Can be prevented.
[0138]
That is, this system makes the ratio of the size of the geodetic survey figure attached to the application correspond to the size of the registry map figure registered in the registry map database 1, so that the registry map has a stroke line etc. The accuracy when adding changes can be improved.
[0139]
In addition, this system associates the barycentric position, etc., with the geography survey map figure attached to the application and the registry map figure registered in the registry map database 1. The accuracy when adding can be improved.
[0140]
In addition, this system relatively rotates the geodetic survey figure attached to the application form and the registry map figure registered in the registry map database 1 to a position where the overlapping portion becomes large around the center of gravity. Therefore, it is possible to accurately match two pieces of map information and improve accuracy when adding a change such as a stroke line to the registry map.
[0141]
Moreover, this system adjusts the division | segmentation position of a registry map figure so that a division | segmentation ratio may approach about the land survey map figure attached to the application and the registry map figure registered in the registry map database 1. Therefore, it is possible to improve accuracy when adding a change such as a stroke line to the registry map.
[0142]
<Computer-readable recording medium>
A program that causes a computer to realize any of the above functions can be recorded on a computer-readable recording medium. The function can be provided by causing the computer to read and execute the program of the recording medium.
[0143]
Here, the computer-readable recording medium refers to a recording medium that accumulates information such as data and programs by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer. Examples of such a recording medium that can be removed from the computer include a flexible disk, a magneto-optical disk, a CD-ROM, a CD-R / W, a DVD, a DAT, an 8 mm tape, and a memory card.
[0144]
Further, there are a hard disk, a ROM (read only memory) and the like as a recording medium fixed to the computer.
[0145]
<Others>
Furthermore, this embodiment discloses the following invention. In addition, the constituent elements included in any of the following inventions (hereinafter referred to as supplementary notes) may be combined with the constituent elements of other supplementary notes.
(Supplementary note 1) A database in which first map information is registered;
Means for receiving from the network the second map information created corresponding to the first map information and adding the change information to the first map information;
Means for contrasting the first map information and the second map information;
A map information management system comprising: means for reflecting the change information in the first map information.
(Appendix 2) The computer
Receiving from the network second map information created corresponding to the first map information and appended with change information for the first map information;
Referring to the first map information from a database;
Contrasting the first map information and the second map information;
A map information management method comprising: reflecting the change information in first map information.
(Supplementary note 3)
Receiving from the network second map information created corresponding to the first map information and appended with change information for the first map information;
Referring to the first map information from a database;
Contrasting the first map information and the second map information;
A program for executing an update step of reflecting the change information in the first map information. (1)
(Additional remark 4) The said contrasting step is a program of Additional remark 3 including the step which matches the ratio of the magnitude | size of said 1st map information and 2nd map information. (2)
(Supplementary note 5) The program according to supplementary note 3, wherein the contrasting step includes a step of associating a predetermined position defined by the first map information with a predetermined position defined by the second map information. (3)
(Supplementary note 6) The program according to supplementary note 5, wherein the contrasting step includes a step of relatively rotating the first map information and the second map information around the predetermined position.
(Additional remark 7) The said change information is division information which divides | segments the predetermined area prescribed | regulated to 2nd map information, The said update step uses the corresponding area corresponding to the said predetermined area in 1st map information. Identifying steps;
The program according to attachment 3, further comprising a step of dividing the corresponding area by the division information.
(Supplementary Note 8) The dividing step includes a step of adjusting a division position of the corresponding region so that a division ratio of the area into which the predetermined region is divided and a division ratio of the area into which the corresponding region is divided are close to each other. The program according to appendix 7 including.
[0146]
【The invention's effect】
As described above, according to the present invention, in the map data management system, the workload can be reduced and the operation efficiency of the system can be improved.
[Brief description of the drawings]
FIG. 1 is a diagram showing a processing outline of a real estate registration system (1)
[Fig. 2] Diagram showing the processing outline of the real estate registration system (2)
[Figure 3] Diagram showing the processing procedure when applying for real estate registration to the real estate registration system
[Figure 4] Diagram showing the processing procedure when applying for map browsing
[Figure 5] Process flow chart when applying for real estate registration
[Fig. 6] Processing flowchart when applying for map browsing
FIG. 7 is a diagram showing an example of data in the registry map graphic database 11;
FIG. 8 is a diagram showing an example of data in the registry map attribute database 12
FIG. 9 is a diagram showing an example of data in the geodetic survey figure database 21
FIG. 10 is a diagram showing an example of data in the geodetic survey attribute database 22
FIG. 11 is a diagram showing an application data image
FIG. 12 is a diagram showing a data example of a land survey map (land survey map A)
FIG. 13 is a diagram showing a data storage procedure of a land survey map
FIG. 14 is a diagram showing an example of land area calculation (1).
Fig. 15 shows an example of land area calculation (2)
Fig. 16 shows an example of land area calculation (3)
FIG. 17 shows an example of a procedure for integrating the center of gravity.
FIG. 18 illustrates a second example of procedures for integrating the center of gravity.
FIG. 19 is a flowchart of a processing procedure for dividing a trapezoid into triangles in Example 2 of the procedure for integrating the center of gravity.
FIG. 20 is a diagram showing the rotation of a figure.
FIG. 21 is a diagram showing an example of area calculation of overlapping parts of a figure
FIG. 22 is a diagram showing an outline of taking out a line segment with a stroke line = ON.
FIG. 23 is a diagram showing a procedure for extracting a segment with a stroke line = ON.
FIG. 24 is a flowchart for extracting line segments at both ends when a stroke line is composed of a plurality of line segments;
FIG. 25 is a diagram showing an example of processing for extracting line segments at both ends when a stroke line is composed of a plurality of line segments;
[Fig. 26] Extraction result of a stroke line for calculating an intersection with a registry map figure
FIG. 27 shows an example of a work table 6 in which line segment formulas are set.
FIG. 28 shows an example of calculation processing of the intersection between a stroke line and a registry map figure.
FIG. 29 is a diagram showing an outline of a process for calculating an intersection between a stroke line and a registry map figure
30 shows an example of a work table 8 that stores intersection coordinates. FIG.
FIG. 31: Example of work table 6 after intersection calculation
FIG. 32 is an example of creating the work table 9 for managing the connection information after the separation.
FIG. 33: Example of lot number setting processing
FIG. 34 shows an example of processing for extracting a vertex (T1) connected to an intersection (K1) in a registry map figure.
FIG. 35 shows an example of processing for deleting a record in which “pencil line” = ON after dividing a line in a geodetic survey map.
FIG. 36 shows an example of processing for searching for a vertex of a land surveying figure that is at the shortest distance from the vertex T1 of the registry map figure connected to the intersection (K1).
FIG. 37 shows an example of processing for extracting lot numbers.
FIG. 38: Example of connection information creation after registry map drawing
FIG. 39: Setting example of lot number area
FIG. 40: Example of updating the registry map database 1 after dividing
FIG. 41: Example of updating the registry map database 1 after separation
FIG. 42: Example of updating the registry map database 1 after the separation
FIG. 43: Example of updating the registry map database 1 after dividing
[Explanation of symbols]
1 registry map database
2 Geodetic survey database
3 registry map system
4 Electronic application acceptance system
5 Registration item system
11 Registry Map Graphic Database
12 registry map attribute database
21 Geodetic Survey Graphic Database
22 Geodetic survey attribute database

Claims (6)

A program for causing a computer to update registry map data in a registry map database,
Reading the registry map data from the registry map database based on the lot number of the land survey data attached to the real estate registration application;
Associating the centroid position defined by the registry map data with the centroid position defined by the land survey data;
The geodetic survey figure defined in the geodetic survey map data and the registration figure of the registry map data read based on the lot number are enlarged or reduced so that the areas match, and , Rotating the figure so that the overlapping portion of both figures is maximized after making the both centroid positions correspond to each other,
Dividing the registered figure in accordance with division information including a division position for dividing the land surveying figure, and causing the computer to execute,
The dividing step includes a step of adjusting a division position of the registered graphic so that a division ratio of an area of the portion obtained by dividing the area measurement graphic is close to a division ratio of an area of the portion obtained by dividing the registered graphic. Including the program.   The program according to claim 1, further comprising the step of associating a size ratio between the registry map data and the land survey map data. A method in which a computer updates registry map data in a registry map database, the computer comprising:
Reading the registry map data from the registry map database based on the lot number of the land survey data attached to the real estate registration application;
Associating the centroid position defined by the registry map data with the centroid position defined by the land survey data;
The geodetic survey figure defined in the geodetic survey map data and the registration figure of the registry map data read based on the lot number are enlarged or reduced so that the areas match, and , Rotating the figure so that the overlapping portion of both figures is maximized after making the both centroid positions correspond to each other,
Performing the step of dividing the registered figure in correspondence with division information including a division position for dividing the land surveying figure,
The dividing step includes a step of adjusting a division position of the registered graphic so that a division ratio of an area of the portion obtained by dividing the area measurement graphic is close to a division ratio of an area of the portion obtained by dividing the registered graphic. Including a method for updating registry map data in a registry map database. The method of updating the registry map data of the registry map database according to claim 3 , further comprising the step of associating a size ratio between the registry map data and the land survey data. A map information management device for updating registry map data in a registry map database,
Based on the lot number of the land survey map data attached to the real estate registration application, means for reading the registry map data from the registry map database;
Means for associating the centroid position defined by the registry map data with the centroid position defined by the land survey data;
The geodetic survey figure defined in the geodetic survey map data and the registration figure of the registry map data read based on the lot number are enlarged or reduced so that the areas match, and , Means for rotating the figure so that the overlapping portion of both figures is maximized after making the positions of both center of gravity correspond to each other;
Means for dividing the registered figure corresponding to division information including a division position for dividing the land surveying figure,
The means for dividing includes means for adjusting the division position of the registered figure so that the division ratio of the area of the portion obtained by dividing the land area measurement figure and the division ratio of the area of the part obtained by dividing the registered figure are approximated. Including map information management device. The map information management apparatus according to claim 5 , further comprising means for associating a size ratio between the registry map data and the land survey map data.

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