SURVEY + TERRAIN Digital Terrain Modeling, interactive earthworks design and calculations, complex survey calculations, error figures and control surveys.

What is Survey + Terrain?

Survey + Terrain is a digital terrain modeling program that provides interactive earthworks design and calculations. In addition to the functions in Design Centre, this module incorporates more complex survey calculations, error figures and control surveys. It will handle the whole process from initial field work through design and working drawings to the final construction control.

Why Choose Survey + Terrain?

CREATE AND CALCULATE VOLUMES OF TERRACES

You can create a terrace in a number of ways — by importing, typing or graphically defining the corner coordinates. Generate the terrace banks and toepoints with variable slopes by simply specifying the bank criteria. If you don’t like the terrace you can change the layout or simply drag it to another position on the site.

Calculate the volume of a terrace in seconds or balance the cut and fill volumes with the optimization function. You can even manipulate an individual terrace on a multi-terrace site.

SWITCH BETWEEN DIFFERENT 'WHAT IF' SCENARIOS

The ability to store the terrace design in any one of the 128 surfaces allows you to very easily switch between different ‘what-if’ scenarios, and to calculate the difference in volume in each case. Once you have finalised your design you can merge the terrace with the underlying ground profile to create a final site model quickly and easily.

You can choose to have the volumes reported in either SABS 1200 or COLTO format with user-defined depth categories, top soil stripping and compaction or bulking factors.

EXTRACT LONG AND CROSS SECTIONS

You can extract long and cross sections which can be viewed or plotted, and you can even edit the cross sections graphically.

VISUALISATION AND PRESENTATION

To help you to see the bigger picture you can visualize the final project in a rendered three dimensional view, with light source, textures and bitmap draping. In fact, you could even “fly” through the site if you want to.

PIPE FUNCTIONS

The pipe functions allow you to generate pipeline long sections with pipes between manholes, pipes defined by length or pipes parallel to the ground profile. You can fine-tune the design graphically before calculating trench volumes to SABS 1200 or COLTO specification.

SURVEY CALCULATIONS

Perform survey calculations like resections, intersections, heighting, double polars and LO to geographical conversions in no time.

2D-LEAST SQUARES NETWORK ADJUSTMENT

Display up to 200 observations as well as the error ellipse. Points can be manipulated by rotating, moving, deleting, removing duplicate points and screening out dense points within a specified distance of each other. You can also compare the difference between points and list them in position and elevation between two surfaces.

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Survey + Terrain Functions

 

INPUT

• Import: • ASCII XYZ data in various formats • ASCII break lines • Stardust BLK files • ModelMaker TOT files with break lines • Geographical coordinates • Convert text entities in a DXF file to survey points and heights • Convert 3D lines in DXF files to survey points with heights and   break lines • Tacheometrical reduction • create and input field book • load and save • list data • reduce • edit the orientation correction • supports ASCII, Booker, Logger, Wild, Geodos and CEASER • Traverse reduction • create and input field book • load and save • list data • uses Bowditch method for reduction • flat traverse • slope traverse • full traverse with mean elevation and temperature correction • Level reduction • create and input field book • load and save • list data • reduce by rise and fall method • Cross section reduction • create and input field book • load and save • list data • reduce to ASCII cross section file • Error figure with: • least squares reduction • graphical display

 

SURVEY CALCULATIONS

• Extended calculations including: • joins and placing joins • single and double polars • trig heighting • intersections • resections • trilateration • Network reduction of control points with: • up to 200 observations • specified direction accuracy • specified distance accuracy • acceptable closure • calculate the observation matrix of distance and angle corrections • displays the error ellipse • Rotate points • Move points in X, Y and Z • Move and/or copy points between surfaces • Delete single or multiple points • Remove duplicate points • Screen out dense points within a specified distance of each other • Helmert transforms of single and multiple points • Convert from Clarke 1880 to WGS84 • Unit and coordinate conversions • Compare the difference between points in two surfaces — lists the difference in position and elevation between the two surfaces as dY, dX and dZ

 

	2D-LEAST SQUARES ADJUSTMENT
• Network reduction of control points with: • up to 200 observations • specified distance accuracy • acceptable closure • displays the error ellipse

 

TERRAIN MODELING

• Unlimited model size with 128 surfaces • Optimized 32 bit engine for fast access and redraws • Intelli-Line break and feature line generation defines features   automatically • Lightning fast triangulation with feature lines / constraints • Edit breaklines with auto crossing line removal • Dynamic contour update as breaklines are changed • Model validation checks for: • duplicate points • unconnected points • crossing break lines • Convert polyline vertices to DTM points • Convert breaklines to feature lines • Interpolate elevations from any surface • Height tracking shows elevation of two surfaces plus the difference at the cursor position • Name filters display only points of interest • Calculate plan and slope areas • Delete points within or outside a user-defined polygon • Line of sight calculations show viewable area from a specified point   and height • Iso-grade line function tracks a route along a fixed slope in a    specific direction • Slope shading in user-defined categories and shades • Height shading (contours) in user-defined categories and shades • Extract long and cross sections along any centre line • Convert cross sections into DTM points • Generate a grid of interpolated elevations

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TERRACE DESIGN

• Multiform terrace profile with complex shapes and levels • Fixed cut and fill slopes • User-defined (variable) cut and fill slopes for each leg of terrace • Toe point calculation with auto removal of existing banks (if any) • Perimeter (terrace top) calculation in restricted areas is ideal for   determining detention ponds • Dynamically drag and drop a terrace anywhere on the site • Volumes by user-defined grids or cross sections • Volumes by user-defined depth increments with top soil stripping   and compaction or bulking factors • Calculate volumes within a user-defined polygon only • Volumes are reported to SABS 1200 or COLTO specification • Cut / Fill volume optimization to user-defined specification • Remove ground points beneath the terrace • Merge the terrace and the ground model with auto-connection of the   break lines between the two models • Generate a grid of the elevation differences between two surfaces

 

	CONTOURS
• Generate contours with user-defined: • pen • line style • interval • highlighting • labels • smoothing • Generate a single contour • Contours between two elevations • Contours of multiple surfaces plotted simultaneously to allow   comparison between surfaces • Contours of the difference between two surfaces with the cut-to-fill   neutral line

 

	PIPE LONG SECTIONS
• Alignment defined by manholes and bends • Pipes defined by: • manhole to manhole • user-defined length • fixed depth below the ground profile • Graphical editing of the manhole and bend positions • Include manhole data for plotting • Trench volumes with user-defined depth increments

 

THREE DIMENSIONAL VIEWS

• Rendered views of single or dual surfaces with definable: • Vertical exaggeration factor • colour by elevation or specify ground and terrace colour • contour overlay • multiple light sources at different positions • Bitmap draping for enhanced visualization • View from any angle, zoom in and out • Print or save as a high resolution bitmap • ”Fly” through the site and save the images in .AVI format

 

DRAWINGS

• Generate plans with points identified by • name • height • circle • symbol • Split the point height into two parts at the decimal point • Auto-hatching of bank batter slopes with: • line style and pen for fill bank • line style and pen for cut bank • spacing of cut/fill lines • ratio of short bank line to bank width • Grid lines or crosses at user-defined intervals, pen, line style and   font • Smoothed contours with labels and highlighting at user-defined   intervals with configurable pen, line style, and font • Slope and height shading in configurable intervals and colours • Auto insertion and orientation of north arrow • Scale bar • Key plan of multiple plots • Cross sections with up to 20 layers, specified line styles,   labels, annotations and grids • Long sections with up to 20 layers, multiple sections and pages   and automatic datum steps • Output directly to printer or to various CAD systems Back to top