[PRO] label points on alignment - MDT26

[PRO] Label Points on Alignment

	Command to execute in the CAD
Vertical menu	MDT26 > Setting Out > Label Points Along the Alignment
Ribbon menu
Command line	MDT26_rep_repanalgrafico

With this command we will be able to label marks in the drawing with the characteristics of the point with respect to the selected alignment.

Initially, we see the next window in which we select the information we want to label.

Information to label

Description: By selecting this option, the Description field in which we will enter the text that we want to label will be enabled.

Station: The station result of the analysis of the designated point with respect to the alignment will be labeled.

Offset: The offset resulting from the analysis of the designated point with respect to the alignment will be labeled.

Coordinates: The X and Y coordinates of the designated point are labeled.

Elevation: The elevation of the designated point is displayed if the Z of the point is non-zero.

Coordinates

By showing the coordinates, we have the possibility of labeling the projected coordinates, that is, the designated X and Y or the geodesic coordinates.

In the case of selecting the Geodesic option, it is necessary to select the Coordinate Reference System.

Analysis of Points with Respect to Road

This option is very much geared towards controlling a linear work that is in progress. The command enables one to conduct analyses and control a surveying conducted on MDT done from cross-section templates with horizontal alignments on the ground plan and elevation drawing obtained from the theoretical status of the terrain in a linear work. These files can either have come from being fully completed with other applications or from files imported from other applications.

There are three methods of calculation: using a Surface, using the Typical section or the Grade line. In the latter two cases, it will request the segment of the road.

In both cases we must select the Points to analyze. Likewise, for both methods, the maximum permissible tolerance values Positive and Negative are defined. If the difference between the real and theoretical elevation exceeds these limits, the point is considered unacceptable, and is marked with an asterisk (*).

There are three methods to select points, either from a point file, by selecting MDT points or by designating coordinates on the screen. In the case of selecting the dot file, the expected format is N, X, Y, Z, separated by spaces or tabs.

Calculation Method for Surfaces

In this case we must select the surface file for which the calculation is to be made, with the corresponding horizontal alignment and the points we wish to analyze.

Once the dialog box has been validated, MDT performs a calculation with the aforementioned data and displays a list with the following information on each line: point set out, station, offset in relation to the horizontal alignment, X and Y coordinates, theoretical elevation, actual elevation, and the difference between the two.

Calculation Method by Typical Section and Grade Line

In this case, once the points have been selected, when validating the dialog, the command will request the segment file with respect to which to make the stakeout. The points will be analyzed with respect to the finished section or with respect to the grade, according to the selection made.

Once the MDT dialog box is validated it performs the calculation process with the previous data and presents on-screen a list with the following information on each line: setting out point, station and offset with regard to the horizontal X and Y coordinates, the theoretical elevation, real elevation and difference between the two.