Levelling

Print Previous page Top page Next page

ic_0009 The table for calculation of a leveling course is filled similarly to the table of a tacheometric course.

 

It is recommended to construct Levelling process as follows:

- To call onto execution a task: Execution of geodesy calculations.

- To call onto execution a mode: Tacheometric survey. After opening a dialogue the Tacheometric course page automatically become active.

- If the earlier saved data which are not necessary to you have automatically opened, clear the table. For this purpose it is necessary to enter into the File menu item the Create subitem or press the Create table button.

- To be switched to Levelling page;

- Set the names of stations of standing.

- Enter heights of reference points;

- Specify quantity of measured stations.

- Enter data of measurements:

- horizontal distance between stations is entered into a column «d(m)-hor. dist.» («d(m)-гор. пр-е»);

- height difference (excess) between stations (on a course) are entered into a column «dh (mm) - received» («dh(mm) - полученные»);

- After all data are entered, enter into the Measurement menu item the Calculate subitem, or press the Calculate button.

  The admissible correction is calculated by the formula:

 

   

where L - extent of a course in kilometers.

- By results of calculation it is possible to generate the report. For this purpose enter into the Report menu item the subitem: Report in Microsoft Word (Coordination of difference) or press the button: Report in Microsoft Word (Coordination difference).

The report is formed on the basis of in advance generated pattern. The pattern of the report should be in a folder specified in settings.

- Plotting objects according to a leveling course is carried out only in the event that onto station of standing with the given name there are coordinates. (These coordinates can be received by results of the calculations which are carried out on the previous pages (tacheometric course, tacheometric survey) or are entered as initial data on these pages). The settings of objects codes are used at mapping. To put results of processing onto a map it is necessary to enter into the Map menu item, the To put objects subitem or to press the To put objects button.