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TDS WORKS 2000 – Software for Tripod Data SystemsHOW TO USE WITH SURVEY DATAPREFACE:TDS Works consists of two programs Foresight and SurveyLink. Foresight is the program thatmerges AutoCad tools and layouts with survey data. Survey Link is the programused to import/export, manipulate and convert raw data so that it may be viewedin the necessary program. The initialdata can come directly from the survey equipment, dedicated data collectors ormany other file formats. For Forest Engineering purposes we use Foresight forpreliminarily viewing the survey data obtained from the Laser Impulse by LaserTechnologies or imputing handwritten survey traverses and survey topographies.USING FORESIGHT GIVEN HANDWRITTEN SURVEY DATA:OPEN FORESIGHTCREATE NEW PROJECTSELECT NO EXISTINGDATA.
CREATINGCONTOURS FROM TOPOGRAPHIC SURVEY1. Survey data must include horizontal angle, stadia readings(diff. In elevation), distance out to topographic point, starting elevation andany elevation if occupied point is changed.2. Depending how the survey was conducted vertical angles couldbe included and adjusted elevation changes would have to be calculated. Or if you trust the survey data justsubtract the existing elevation from the starting elevation. The vertical distance is needed with thehorizontal angle and horizontal distance in order for Foresight to construct anXYZ point in an arbitrary coordinate system (example origin; x = 5000,y = 5000,z = starting elev.).3. ( Do this first) IF the coordinate system needs to beconsistent with other work then a known point with specific coordinates andelevation can be used.
Under the MAPmenu Select ADD POINT and enter in the known coordinate values. Point to add is the occupied point sospecify 1. Oncethe point has been created you are ready to start filling in the topographicdata by using a tool under the COGO menu called Point In Direction. Occupiedpoint will be point 1 which you created in step 3 (either known or arbitrary).Fill in direction (3.2748 = 3deg27min48sec) and the Vertical and Horizontaldistances.
Store Point should be filled in as the next point (in our case2). And finally fill in any description(KEEP IT BRIEF).
Foresight will then calculate the new Northing, Easting andElevation. This step is to be repeated for as many points as the surveydictates with the Occupied Point ALWAYS being point 1 and the store pointincremented by 1. My experience waswith a bridge survey so there was about 150 points, which takes a goodhalf-day.5. Inthe plan view of the program it will show you the new point and where it isrelative to the occupied point. It willalso appear to connect them with a blue line.
This is known as a scratch line and can be removed with CTRL + Ecommand. I recommend leaving them untilthe end so you can keep track of where you are. AT ANY TIME, A POINT CAN BEEDITED BY RIGHT CLICKING ON THE SPECIFIC POINT AND CHANGING THE ATTRIBUTES(i.e. Coordinates, label, symbols, etc). I recommend changing the symbol to something noticeable with size 0.02.Using the Select button on the Edit Points tool under the MAP menu you canSELECT many points and allocate symbol descriptions, labels and the layer youwant the points to be on.6.
Onceall data has been entered you are ready to create the contour layer. It is very simple. Under the Contour menu Generate contours. Create a new layer or use the layerprovided.
Under Lines define intervaland labeling characteristics.B. CREATING A TRAVERSE LAYER GIVEN TRAVERSEDATA.
Giventraverse data, ideally you want to link it to the contours you just created orhave it in the same coordinate system. To do this hopefully one of your points in the topographic surveycorresponds with the traverse stationing. Otherwise, you will need to specify or make a coordinate to tie yourtraverse with your contours.2. Onceyou have a starting point you can start your traverse using theTraverse/Sideshots tool under the COGO menu. This tool requires one fixed Backsight (in either direction (AZ) orpoint (coords) of which to reference the traverse.
Foresights are also required to advance to the next point as wellas instrument height, rod height, horizontal angles (in either right angle orAzimuth), and the vertical description in Zenith/Slope dist or Verticaldistance/Horizontal distance. Finally, give the foresight a point number and adescription (i.e.
Stationing, 4+50). Enter the information then press TRAVERSE. Once at any desired point one can enter sideshots in the samefashion then pressing SIDESHOT.3. Once the traverse is completed Foresight has additionalsurveying utilities that may be used such as Closing Calculations, Connectingthe points to create a profile, viewing cross-sections or viewing your terrainin 3D space by pressing.a.
Closing Calculations: Under COGO Page 249b. Creating Profiles: Under CONTOUR Page 199 it is a suggestion if interested in profiles toread page 50-62 about P-lines. A P-line is a series of lines connected to datapoints.c. Cross Sections: UnderCONTOUR Page 225.Additional Info:The license on TDS needs to be updatedevery year. If not, then it will only run in demonstration mode or not at all,depending on if the time on the license has expired.
If this comes up, justcall up TDS and talk with one of the sales reps. They'll ask for the serialnumber and license of the program in question, then will issue new 1-year codesfor each module.When the demo mode warning isup, select 'purchase software' and input the new codes into theirrespective fields.TDS Business line: (541) 753-9322TDS Fax line: (541) 757-7254Web Site.