tcpMDT
In this section
- Introduction - MDT25Based on traditional coordinate transformation methods and according to their dimension, a classification has been made which includes…
- 2D translations - MDT25This type of transformation calculates X and Y displacements by the mean of the differences between source and target. Only one pair of…
- Helmert 2D - MDT25Also known as 4-parameter similarity transformation. The transformation process involves 3 steps: scaling, rotations and translations. The…
- Affine 2D - MDT25Also known as 6-parameter transformation. It is the general case of the 4-parameter Helmert transformation, where different scales are…
- Projective 2D - MDT25Also known as 8-parameter transformation. It is appropriate to use it when a 2-dimensional system non-parallel system. It is often used in…
- 3D translations - MDT25This type of transformation calculates X, Y, Z displacements by the means of the differences between source and target. Only one pair of…
- Helmert 3D - MDT25This transformation is also known as 7-parameter transformation. It transfers points from one 3-dimensional coordinate system to another…
- Helmert 2D vertical displacement - MDT25This type of transformation is a combination of the Helmert 4-parameter transformation and a displacement in Z. This translation in Z is…
- Helmert 2D vertical displacement and slopes - MDT25As in the previous transformation, this is a combination of the Helmert 4-parameter transformation and a translation in Z calculated from…
- Transform points - MDT25This command allows you to apply a transformation to the points in the current drawing. First request an NTR file, and then the following…
- Transform drawing - MDT25This command allows you to apply a transformation to entities in the current drawing. First request an NTR file, and then the following…
- Transform file - MDT25This utility lets you apply a transformation to a points file. The source and target files and the NTR file are requested. The source file…
- Planar to projected - MDT25We can use this command to convert a survey of planar coordinates to projected, applying the scale factor of the chosen projection from a…
- Projected to planar - MDT25This option performs the reverse operation to the Planar to Projected command, that is, converts from projected coordinates to planar…
- Introduction - MDT25The corrections used by the program can be activated or deactivated through the configuration. It is important to understand how these…
- Sphericity and refraction - MDT25This is a value added to the slope, allowing the optical effects of sphericity and refraction on the observations to be corrected. The…
- Reduction to ellipsoid - MDT25This is the terrain geometric distance from the length of the geodesic line on the ellipsoid surface defined by the projection of end…
- Instrument angle - MDT25The instrument's horizontal and vertical angle corrections are values added to the angles before calculating stations. They are obtained…
- Anamorphosis - MDT25This is a scale factor applied to the reduced distance before calculation, and whose value depends on the hourly ellipsoid and time zone…
- Scale factor due to height - MDT25This is a correction due to height which to some extent affects the distance measured. Generally speaking, this correction is minimal, but…
- Combined scale factor - MDT25This is the factor resulting from multiplying the anamorphosis by the scale factor due to the height. where: Kh = Scale factor due to…