Cadastre de 1834 géoréférencé et vectorisé (avec données attributaires), Charleville

The creation of a geographic information system (GIS) linked to socio-demographic databases is the most obvious extension of the "mpf" project to centralize, analyze and combine the many and rich cartographic archives linked to Charleville.
A first conclusive attempt to digitize this cadastre was carried out in 2015. It was carried out for the Saint-Sépulcre district based on a matrix and a cadastral map from 1834. Based on this positive experience feedback, it was decided to begin the full digitization and georeferencing of this cadastral plan in order to have a quality spatial repository that can be associated with socio-demographic data.
The use of the metric system and non-projected local coordinates suggested that absolute and relative Euclidean accuracies would be optimal. First, a geometric registration (planimetric coordinates) of the high definition digitized plane (raster format, 600 dots per inch) was started. This operation was built on the identification of common points between the contemporary urban fabric and the geometries present in the archive (street angles, intersection of buildings, etc.). The results obtained, from the geometrical method used called “Helmert transformation”, appeared satisfactory with a root mean square error (MSE) of 0.8 m from 116 common calibration points.
Once this georeferencing was carried out, the exhaustive digitization of the 1834 cadastre and its carto-interpretation made it possible to obtain a set of data composed of two sets of geographic information in open format (geojson) combining socio-demographic data and geometries.
Data set composed of three main files:
1. "cadastre-1834-sheet-c1.geojson", geojson format. Cadastre digitized exhaustively from sheet C1 kept in the departmental archives of the Ardennes (© departmental archives of the Ardennes).

[link to the departmental archives] (https://archives.cd08.fr/arkotheque/consult_fonds/fonds_seriel_resu_rech.php?ref_fonds=2). )

National Lambert 93 projection system (EPSG 2154), absolute submeter precision and relative centimeter precision.
2086 plots - geometries (closed polygons) associated with 7 attribute tables:
- "pk" (primary key) or unique identifier,
- "plot number" or plot number from the examination of the 1834 plan,
- "use" according to two values ​​"public" or "private",
- "district" according to the 7 values ​​"saint sepulcre", "saint-françois", "notre-dame", "saint-ignace", "hors-les-murs", "the alleys", and "small wood"
- "street" according to 90 values ​​from the 1834 road network,
- "type" according to three values ​​"built", "open space", "agricultural space".
as of 4/01/2021
Creative Commons License
"cadastre-1834-feuille-c1.geojson" by Sylvain Rassat, Center Roland Mousnier, Departmental Archives is made available under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.

[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)

2. "ilots1834.geojson", National Lambert 93 projection system (EPSG 2154), submeter absolute precision and centimeter relative precision. 36 islands (closed polygons) associated with 2 attribute tables: - "id" (identifier) ​​or unique identifier, - "district" according to the 4 values ​​"saint sepulcre", "saint-françois", "notre-dame", "saint -ignace ". as of 4/01/2021
Creative Commons License
"ilots1834.geojson" by Sylvain Rassat, Roland Mousnier Center, Departmental Archives is made available under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.
[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)
3. Raster slab (image) georeferenced from the 1796 "Charleville-C1" cadastral plan (tif format) kept in the departmental archives of the Ardennes (Charleville-Mézières, © Departmental archives of the Ardennes). E.M.Q 0.8 m, national Lambert 93 projection system (EPSG 2154). status as of 01/01/2018.
Based on a Source Link work.
Permissions beyond the scope of this license can be obtained at https://www.researchgate.net/profile/Sylvain_Rassat.
[viewable within the urban 3D model of Charleville] (https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html)

构建与社会人口统计数据库关联的地理信息系统（Geographic Information System, GIS），是‘mpf’项目最显著的扩展方向——该项目旨在整合、分析并关联夏尔维尔（Charleville）相关的海量丰富制图档案。

2015年，针对该地籍的首次数字化尝试取得了决定性成果：团队基于1834年的矩阵数据与地籍图，完成了圣塞普尔克里区（Saint-Sépulcre）的数字化工作。基于此次积极的经验反馈，项目组决定启动该地籍图的全面数字化与地理配准工作，以构建可关联社会人口统计数据的高质量空间基准库。

由于采用公制单位与非投影局部坐标系，其绝对与相对欧氏精度有望达到最优。首先，团队对高清数字化平面（栅格格式，600dpi）开展了几何配准（平面坐标）工作——该操作基于识别当代城市肌理与档案中几何特征（如街角、建筑交叉口等）的公共点。通过采用‘赫尔默特变换’（Helmert transformation）几何方法，116个公共校准点的均方根误差（Root Mean Square Error, RMSE）为0.8米，结果令人满意。

完成地理配准后，通过对1834年地籍图的全面数字化与地图解译，团队获得了一套由两组开放格式（GeoJSON）地理信息组成的数据集，该数据集融合了社会人口统计数据与几何特征。

数据集包含三个主要文件：
1. 'cadastre-1834-sheet-c1.geojson'，GeoJSON格式。该地籍数据由阿登省档案馆（Departmental Archives of the Ardennes）保存的C1号图纸全面数字化而来（©阿登省档案馆）。
[阿登省档案馆链接]（https://archives.cd08.fr/arkotheque/consult_fonds/fonds_seriel_resu_rech.php?ref_fonds=2）
采用国家兰伯特93投影系统（National Lambert 93，EPSG 2154），绝对精度达亚米级，相对精度达厘米级。包含2086个地块——其几何特征（闭合多边形）关联7个属性表：
- 'pk'（主键，primary key）：唯一标识符；
- 'plot number'：基于1834年地籍图判读的地块编号；
- 'use'：取值为‘public’（公共）或‘private’（私人）；
- 'district'：取值为7个区域，即‘saint sepulcre’（圣塞普尔克里）、‘saint-françois’（圣弗朗索瓦）、‘notre-dame’（圣母院）、‘saint-ignace’（圣伊格纳斯）、‘hors-les-murs’（城墙外）、‘the alleys’（小巷区）及‘small wood’（小树林）；
- 'street'：取值为1834年路网中的90条街道名称；
- 'type'：取值为‘built’（建成区）、‘open space’（开放空间）、‘agricultural space’（农业空间）。
数据版本日期：2021年1月4日
知识共享许可协议：Sylvain Rassat、罗兰·穆尼耶中心（Center Roland Mousnier）及阿登省档案馆提供的‘cadastre-1834-feuille-c1.geojson’遵循知识共享署名-相同方式共享4.0国际许可协议（Creative Commons Attribution-ShareAlike 4.0 International License）。基于Source Link作品。超出本许可范围的权限可通过https://www.researchgate.net/profile/Sylvain_Rassat获取。
[可在夏尔维尔城市3D模型中查看]（https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html）

2. 'ilots1834.geojson'，采用国家兰伯特93投影系统（EPSG 2154），绝对精度亚米级，相对精度厘米级。包含36个岛屿（闭合多边形），关联2个属性表：
- 'id'（标识符）：唯一标识符；
- 'district'：取值为4个区域，即‘saint sepulcre’、‘saint-françois’、‘notre-dame’、‘saint-ignace’。
数据版本日期：2021年1月4日
知识共享许可协议：Sylvain Rassat、罗兰·穆尼耶中心及阿登省档案馆提供的‘ilots1834.geojson’遵循知识共享署名-非商业性使用-相同方式共享4.0国际许可协议（Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License）。基于Source Link作品。超出本许可范围的权限可通过https://www.researchgate.net/profile/Sylvain_Rassat获取。
[可在夏尔维尔城市3D模型中查看]（https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html）

3. 栅格切片（图像）：基于阿登省档案馆（夏尔维尔-梅济耶尔，Charleville-Mézières）保存的1796年‘Charleville-C1’地籍图（TIFF格式）进行地理配准。均方根误差（RMSE）为0.8米，采用国家兰伯特93投影系统（EPSG 2154）。
数据版本日期：2018年1月1日
基于Source Link作品。超出本许可范围的权限可通过https://www.researchgate.net/profile/Sylvain_Rassat获取。
[可在夏尔维尔城市3D模型中查看]（https://cesium.cstb.fr/Apps/cnrs/MN_Charleville3D.html）