Draft operational guidelines of digital india land records modernization programme (dilrmp) introduction

9. Specifications and alamats
9.1 Images
The images (in *.gif format) provided for map composition must be accompanied with a point layer in which each point coordinate would give the lower-left corner of the image. The layer must have a separate attribute column, named “image” along with the necessary columns (specific to a point layer table). This attribute column will contain the file name of the image files corresponding to each point of the point layer. There is no restriction on the names of the image files, but it must be noted that the file names mentioned in the “image” column of the point layer must correspond to the file names of the images provided. The base name of the files for this point layer must be “img”. Thus, the “.shp” file for the above mentioned point layer must be “img.shp”. The names of other necessary files (.shx, etc.) for the same point layer must be given accordingly. All the images (*.gif or *.tif) of a particular sheet must be given in the same directory, i.e., the JL-No. sub-directory.
Note: i) The scale of the map must not be an image, but must be digitized and provided in the line layer.
ii) Attribute naming: The “image” attribute column must be a character field and have a maximum length of 8 characters.

9.2 Alamats

9.2.1 At point layer
Some of the alamats that can be represented by points should be provided in a point layer. The point layer required for this purpose must contain the attribute field “alamat symbol code” along with other necessary fields. The following Table 1 contains the “alamat symbol code” column for the above mentioned point layer. The other columns are given as descriptions to the “alamat symbol code” column. The column named “Sl. No.” is the serial number of the various symbols as per the conventions followed by the Directorate of Land Records and Survey. The base name of the files for the point layer for the alamats must be “almp” i.e. the “.shp” file for the point layer must be “almp.shp”. The names of other necessary files (.shx, etc.) for the same point layer must be given accordingly.
Note: i) Some alamat notations comprise of a line and several points on the line. In such cases, the points are to be provided in the point layer and the lines are to be provided in the line layer that is described below.
ii) Attribute naming: The “alamat symbol code” attribute column must be a character field and have a maximum length of 4 characters.
Table 1