CAPLAN (Cremer's Survey Processing and Plan Design) caters for all tasks encountered in surveying and civil engineering, for example if you need to
The program also offers interfaces to all common data transfer formats.
The CAPLAN module provides an optimized project database sub-module, which can be used to carry out all manner of processing and calculations, and a plan output sub-module, which can be used to create plans, maps and (cross and longitudinal) sections. This basic module can be supplemented with individual additional modules so that CAPLAN is perfectly tailored to your particular surveying tasks. We offer the following modules:
The project database usually contains points and lines, and can also be used to save and process alignments, sections (profiles), observations and 3D objects. Complex objects, such as networks and DTMs, can also be handled in the project database. A project is displayed in three windows: a point directory, an overview and a 2D detail window. Other views (e.g. for longitudinal sections, cross sections etc.) are available in the plan window.
The lines always pass through existing points and are therefore included in any shift or transformation of the points. As points can be given an elevation, these Z-coordinates can also be used by the lines. Points and lines form the basis for individually configured inventory plans.
The data management and design options in the plan window provide everything that is required of a standard CAD system used for surveying purposes. This includes a universal layer structure for all the drawing elements as well as freely definable symbols, which can also be imported from DXF files.
A plan is usually the visible document that results from a surveying assignment. While the project only uses standardized representations of features, switching to the plan sub-module and the plan design allows virtually everything the user could want in terms of display capabilities, including freely-definable text additions with automated reference lines, as well as the hatching of buildings and slopes and the filling of areas. Existing planning documents, orthophotos, satellite imagery, and Web Map Services (WMS) can also be used to provide a georeferenced background.
Useful design functions together with snapping options allow rapid completion of plans. A range of dimensioning functions enables numeric embellishment of plan data, with correction of the dimensions to the observation horizon, based on the defined coordinate system, being possible.
When outputting plans, they can be furnished with a DIN/ISO compliant frame, a title box and other details such as a legend and a coordinate grid. All plans can be output to printers, plotters and PDF files.
Digital terrain models (DTMs) allow the calculation of various route planning options without the need to collect additional data. CAPLAN can process data regardless of whether it has been collected terrestrially (with a total station or GNSS), by boat (using echo sounding) or from the air (using photogrammetry or airborne laser scanning).
Up to several hundred thousand points can quickly be meshed to form a network of triangles (TIN), and the program’s special viewing functions (contours, height bands and slope shading) can be used to easily identify potential data errors. The local editing functions allow errors to be corrected in just seconds, and the amended output is displayed immediately. An even more detailed visual inspection is provided by the spatial representation of DTMs in the VIS-All® software developed by our partner company Software-Service John GmbH (www.john-software.de). DTMs can be intersected to calculate cut and fill volumes (calculated using prisms based on the REB VB 22.013 method). These can be displayed graphically in a difference model, which not only provides a clear visual illustration but also allows accurate and transparent verification.
If the client requires documentation of volumes between boundary lines (pursuant to REB VB 21.013), the calculation areas can be compiled and defined by means of cross sections with multiple horizons. The volume calculation can be documented using a series of cross section drawings and a comprehensive report.
If the situation in the cross sections is very complex, the cross-sectional areas at the individual stations can be defined as closed polygons and processed in the volume calculation using cross sections (based on the Elling method pursuant to REB VB 21.003). Furthermore, an area calculation can also be carried out using cross sections (pursuant to REB VB 21.033).
The geometry of profiles is always referenced to an alignment. Normally, a fully-defined alignment is provided by the client. This can be loaded and saved in various formats, and manual input is also possible.
In addition to the generation of alignments from polylines, the offsetting of points (calculation of critical points) and the calculation of points from alignment-referenced coordinates are important tools in road and tunnel construction, and also enable a stringent spatial perspective.
When carrying out volume calculations from cross sections during road construction projects, there are a whole range of positions for which calculations need to be carried out, resulting from the building up of the substrate and the subgrade. The ability to edit cross section designs and constructions directly in the plan window is one of the key distinguishing features of CAPLAN.
The profile structure is based on a cross-section template in which all the profile lines (horizons and Elling lines) are already predefined. Alternatively, the highway profile can be determined based on a road surface, which defines the upper surface of a road by means of lane width and crossfall values. The profile structure can then be designed and completed on this basis, with inclusion of the original terrain profile.
When processing and evaluating observation data, CAPLAN always takes the possibility of human error into account. This is in particular the case with regard to the processing of polar or radial (angle and distance) observations, where mistakes such as point mix-ups in the field are unfortunately not uncommon. Surveyors appreciate the automatic plausibility checks that are applied at all stages of the processing, which ensure error detection at an as early stage as possible.
The DIRAUS module can be used to process and evaluate raw data from surveying instruments. Station checks and the subsequent foresight/backsight comparison offer a first opportunity to identify possible point mix-ups. The result of this processing is polar data that can be used for further calculations.
In order to ensure the highest levels of accuracy, new points are calculated in two stages: The first step determines the best possible approximate coordinates, with specific algorithms negating the effects of gross errors and providing remarkably stable results. In the second stage, refined coordinates are determined by carrying out adjustments.
A powerful function in the GPUNKT module is the largely automated determination of new points in the point stack. The module also provides the full spectrum of basic surveying tasks and can solve special spatial tasks using 3D objects.
The NETZ1L module can be used to create and adjust 2D plan control networks, ranging from completely free to fully-constrained networks. In addition to the planning of networks, breakthrough accuracy prognoses can also be performed when working with tunnel networks.
When very accurate and precise elevations are required, leveling is still the first choice among the various methods of measurement that are available. The types of leveling range from the simple observation of profiles with a dumpy level to precision leveling using invar leveling staves equipped with barcodes and first order leveling methods used by national surveys.
The NIVAUS module allows users to import data from all commonly-used digital instruments. When working with pre-determined control point elevations, leveling runs and loops are automatically compiled, and any closing errors are distributed. In order to provide the basis for evenness checks pursuant to the DIN 18202 standard, the leveled points can also be placed in a predefined grid.
The NETZ1H module is recommended for elevation calculations requiring the highest possible level of reliability, as this module enables network adjustments to be carried out with a range of control point conditions (free, dynamic and final). For precision networks of the highest order, the height differences are reduced.
As a result of the increased compatibility of all national survey organizations on the basis of the WGS / ETRS89 coordinate systems, there are numerous new tasks that can now be solved by CAPLAN with its KOTRAN module. Older coordinate systems can be converted in approximate terms to the new ETRS89 system using conformal 3D transformations. For higher accuracy requirements, local inhomogeneities must be taken into account, and these can be approximated in many cases using the NTv2 method.
GNSS technology shows its strength in particular with regard to primary networks: it offers homogeneous and high accuracy over the entire project area with relatively low measurement effort. Here, economy and precision meet in perfect harmony.
The NETZ1R module extends the options available for performing horizontal and vertical adjustments. With the combined spatial adjustment, it is possible to combine already processed GNSS baselines with classical terrestrial observations (such as total station surveys and leveling). These can be integrated using weighting based on their respective accuracies, in order to create a single hybrid spatial network.
Horizontal and vertical control surveys of building structures usually consist of an initial survey followed by subsequent surveys carried out at regular time intervals, to monitor possible deformation. Regardless of whether the control survey is done on a primary network, a building or a dam, the objects being monitored should always be defined using a sufficient number of suitably enduring object points, the position of which can be checked against stable reference points.
Many documentation procedures are based on a direct comparison of coordinates. A prerequisite in this regard is that the stability of the reference points is ensured and that a sufficiently accurate determination of the coordinates is performed in every epoch. This comparison of epochs is available in the basic CAPLAN module.
The actual deformation analysis, based on the Pelzer method, is available in the NETZ2X module and goes a crucial step further, as it can be used to compare two already adjusted networks. For this, all the points are designated as either reference points or object points, with the reference points being assumed to be stable. The analysis includes the checking of reference points with regard to stability and, if necessary, the redesignation of any unstable reference points as object points.