General Guide to DTM Stakeout - Opti-cal Survey …

1 Version Guide to DTM StakeoutGPS System 5002 General Guide to DTM Stakeout - on your purchase of a new Leica GPS5003 General Guide to DTM Stakeout - of chaptersIntroductionPreparationSurveying a DTMS taking a DTM 5 7 20 23 View of chapters4 General Guide to DTM Stakeout - .. 5 Activation of the 6 Preparation .. 7 DTM data 7 Leica GSI data 8 Example for a DTM file in Leica GSI8 8 Example for a DTM file in Leica GSI16 9 Header of a DTM file in Leica GSI8 10 Data line for triangle vertex in a DTM file inLeica GSI8 11 Creating a DTM file in Leica GSI8 format withLISCAD 12 AutoCAD DXF data 13 Example for a DTM file in AutoCAD DXF 13 Creating a DTM file in AutoCAD DXF format withLISCAD 14 Copy the DTM file to the PCMCIA 16 Transferring a DTM file directly from the PC to the card.

2 16 Transferring a DTM file to the card using SensorTransfer in 17 The Coordinate 18 Receiver 18 Setting the 19 Surveying a DTM .. 20 Starting the 20 Staking a DTM .. 23 Configuring Stakeout to use a DTM 23 Selecting the correct DTM 25 Staking a 275 General Guide to DTM Stakeout - manual describes the application program DTMS takeout (Digital Terrain Model) for the Leica GPSS ystem 500. With DTM Stakeout you can navigate around an entered DTM. When in thismode, the system will display the coordinatevalues of the point being measured at that timeand the cut or fill in relation to the DTM.

3 Stake points anywhere within an entered DTM,store the coordinate values of the points that havebeen staked as well as the cut or fill from the pointon the actual ground suface to the DTM can be created in AutoCAD DXF or in LeicaGSI format by using for example LISCAD. Please refer tochapter Preparation for more of the ApplicationThe application is initially activated by an access codewhich is provided by Leica. If the application does notappear on your menu or you are otherwise unable toaccess the application, please contact your Leica Guide to DTM Stakeout - must be familiar with the principles and proceduresthat are outlined in the manual Getting Started withReal-Time Surveys as well as the Technical ReferenceManual.

4 If the material referenced is not thoroughly understood, itis strongly advised that you review them prior to proceed-ing with this application this document, it is assumed that you are familiarwith the operation of the Guide to DTM Stakeout - data formatBefore starting the application program, the DTM must beprepared and stored on the memory card and the appro-priate coordinate system relating to the DTM must data for the DTM Stakeout program may be preparedin one of three formats: standard Leica GSI8, standardLeica GSI16 or AutoCAD file may be named any valid DOS name with (for Leica GSI format) or.

5 Dxf (for AutoCAD DXFformat) Guide to DTM Stakeout - GSI data formatExample for a DTM file in Leica GSI8 formatBelow is an example of a DTM file in Leica GSI8 top half of the file shows the header and coordinatesof the first two triangle vertices. The bottom half of the fileshows the coordinate records of the last two , in the complete listing of the data file therewould also be coordinate records for the triangle verticesfor triangles from 3 to that each line must end with a blank andthat a CR/LF is required after the last data Guide to DTM Stakeout - for a DTM file in Leica GSI16 formatBelow is the same example in Leica GSI16 contrast to Leica GSI8 format, each line in a GSI16 filestarts with a *.

6 And all values (not the word indexes) have16 digits instead of 8. Values are extended to 16 digits byadding zeros from the for these differences, everything else said aboutGSI8 in the following sections also applies to GSI16, that each line must end with a blank andthat a CR/LF is required after the last data Guide to DTM Stakeout - of a DTM file in Leica GSI8 formatThe header is the first line in the GSI file. There is only one header line per header line takes the following +000 JOBID +DTMNTWRK +DTMCOORD +00000000 +00000000 The word indexes are:WI 41 Job identification, maximum 8 characters, may be defined by 42 Identification of DTM file, may not be changed by user.

7 This entry must be + 43 Identification of principal point type, may not be changed by user. This entry must be + 44 Optional easting offset. May be defined by 45 Optional northing offset. May be defined by that the values for easting and northing offset have no digits to the right of the decimal place. Forexample, +001000000 means that 1000000 will be added to the coordinates of the triangle Guide to DTM Stakeout - line for triangle vertex in a DTM file in Leica GSI8 formatIn a DTM GSI file, the data line records for the triangle vertices follow the header line.

8 One line describes one vertexof one triangle by its coordinates. One triangle is fully described by three lines - one for each coordinates should be sorted by triangles. It is therefore obvious that three coordinate lines with the sametriangle number should be found together in the file. There is however no need to sort the vertices itself for data line for one triangle vertex is shown below:110002+00000002 +TRI00001 +05000000 +01080263 +00109688 The word indexes , , Guide to DTM Stakeout - a DTM file in Leica GSI8 format with LISCAD is assumed that LISCAD Plus is running with thedrawing file (*.)

9 See) open and a Digital Terrain Model hasalready been created for this file. From the menu bar select Task, Field Transfer. Also from the menu bar select Output, Data Recorder. A dialogue called Data Recorder Output the Install .. button. This leads to a new dialogueInstall Data Recorder Devices. In the box Supported Devices either highlight LeicaTPS - 1100 Series or Leica TPS - 1000 Series and The selected instrument will appear in the boxInstalled Devices. Click Close. In the dialogue Data Recorder Output tick DigitalTerrain Model. Click OK.

10 In the new window Output Digital Terrain Modeltick the option Output to file. Click OK. The next screen gives all necessary input optionsfor Save As. Select a directory and a file name. Notethat the file requires the extension .gsi. Even though theSave as type box only shows the option text file (*.txt), it ispossible to type the file name plus the .gsi extension inthe box File name. Click Guide to DTM Stakeout - DXF data formatExample for a DTM file in AutoCAD DXF formatDTM triangles are imported to DTM Stakeout as 3 DFACE entities from a DXF file.