How To Use
TRA. The tool allows the import & export, visualization, validation & analysis as well as the transformation of TRA and GRA files. The following sections are in the order of a usual workflow.
TRA and GRA files can be imported via drag and drop from the Explorer area. Individual files can be added to the corresponding fields of a Track-container. A Track-container is predefined as a combination of left and right path (L/R.TRA), the associated gradient (L/R.GRA) and a stationing axis (S.TRA). When loading a file, the remaining fields are filled in by auto-completion if possible. Alternatively, it is possible to import an entire folder, and the files contained are grouped in Track-containers using auto-completion.
TRA. Tool follows the concept of batch processing of the loaded files, combinations allow different processing operations. As processing containers currently Interpolation, Transformation and Transformation VA are available. Executing a processing container applies to all previous Track-containers until the next occurrence of this type of processing container. This way multiple settings (for interpolation or transforms) can be applied to different subsets of Track-containers. Rearranging of containers is possible via drag&drop. By clicking on the buttons below, different types of containers can be added to the stack.
As geometries inside a TRA file are defined by parameters type, length, radius1 and radius2, 2/3D points have to be sampled to provide a visualization or export poly-line coordinates as csv. The interpolation container has two options: First is Delta defining the distance between sampled points, the second Tolerance describes the maximum allowed difference between the geometry and the sampled poly-line. This ensures a higher density of sampling-points at areas with higher curvature values. Pressing the Interpolate button, starts the sampling of all previous Track-geometries (see Batch processing). Depending on the amount of geometries and their complexity (some geometry types can only be calculated iterative) this can take some time. When a interpolation is calculated, the PlotView window shows up
By adding a transform container to the stack. TRA-elements can by transformed in other coordinate systems. Applying a transform not only affects the start point of a geometry element, but also has impact to the geometry parameters. By enabling Optimize Heading and Length these parameters a fitted to restore a consistent geometry after transform.
For more information about the different transform-options please see: https://github.com/dd-bim/egbt22trans/tree/main/egbt22trans
Exporting is possible to TRA/GRA, csv and .dxf. Therefore the Export button on each Track-container instance can be used. To save all TRA(GRA) instances as TRA the Save all button can be used.