Profiles and Cross Sections - APLITOP - Community

How is a longitudinal obtained from cartography?

admin — Thu, 03 Jun 2021 10:00:00 +0000

In the Profiles > Get Profile command dialog, click the Source button. Instead of the default Digital Terrain Model option, choose the Layer List option. Then select the layers that contain elevation information that the program can cut.

Note that it is not necessary, nor in most cases recommended, to create a surface to obtain profiles.

What are the codes in the profile files for?

admin — Thu, 03 Jun 2021 10:00:00 +0000

This information can be represented on the numerical data, in the drawing of the profile. For this, it is necessary to add the Codes element in the numerical data file, within the Profiles > Drawing > Definition of Numerical Data command.

How can a profile be obtained from a series of points close to the alignment?

admin — Thu, 03 Jun 2021 10:00:00 +0000

Using the command Profiles > Get Profile by Regression, supplying an alignment. The points do not have to coincide exactly with the alignment, but must belong to a regression band whose value is requested by the program.

How can the heights of the texts of the different elements of the numerical data be changed?

admin — Thu, 03 Jun 2021 10:00:00 +0000

Editing its properties, with the command Profiles > Drawing > Definition of Numerical Data.

How can a terrain be drawn with the associated grade line?

admin — Thu, 03 Jun 2021 10:00:00 +0000

It is necessary to create a segment file with the command Roads/Segment > Define/Edit, then assign the information from the files of alignment, profile and vertical alignment, and finally draw it with the command Longitudinal> Draw Longitudinal Profile.

How can the elevation differences be seen in the drawing between two profiles?

admin — Thu, 03 Jun 2021 10:00:00 +0000

Using the command Profiles > Draw Compound Profile. To do this, you must first create a segment file with the Roads/Segments> Define/Edit command, and then assign the information from the alignment, profile and vertical alignment files.

How can a longitudinal profile be drawn with more than one grade line?

admin — Thu, 03 Jun 2021 10:00:00 +0000

It is necessary to have previously created a segment with the command Roads/Segments> Define/Edit.

Next, you must use the command Profiles > Draw Compound Profile and select the created segment file. Finally, click the Grade lines button and then Insert, choosing the additional vertical alignment files to use.

It is convenient to choose a numerical data file in which additional elements have been defined, such as vertical alignment elevations or elevations difference with a vertical alignment number greater than 1. See the Definition of Guitars command.

How can specific texts be drawn at a specific station?

admin — Thu, 03 Jun 2021 10:00:00 +0000

One possibility is to use the codes for the vertices of the profile. To do this, once obtained from the terrain, new distances can be inserted with the command Profiles > List Profile. In these vertices a text can be assigned as a code, and finally, Codes can be inserted as a numerical data element.

Another possibility is to insert an user-defined element on the numerical data. With this element it is intended that the user can label a series of data in an element whose data is not stored in the segment, but in an external file. MDT reads a columnar file where the first column must be the stations to be used as a reference and then a series of columns with the data to be labeled. See command Definition of Numerical Data.

How can I represent the projection of a pipe on the profile?

admin — Thu, 03 Jun 2021 10:00:00 +0000

Using the command Project Polyline in Profile, within the longitudinal profiles menu. This option allows you to project a 3D polyline located with respect to a longitudinal obtained in the same coordinate system. To do this, it is necessary to have previously drawn the longitudinal line on which you want to project the polyline, and also specify the alignment.

How can we get a report of elevation differences?

admin — Thu, 03 Jun 2021 10:00:00 +0000

It is necessary that a road/segment file has been previously created in which at least the alignment, the profile and the grade line are stored. Using the List Profile command, the information about elevations and differences is obtained.