Batch intersection by oriented directions

Batch intersection by oriented directions

The job serves to calculate the coordinates by batch intersection by oriented directions.

The entry procedure is similar as for the task Intersection by oriented directions. The difference is that in this job you can also enter, along with the orientation points, the measured point (you do not have to enter the coordinate orientation for all the entered directions). You separately enter the orientations for stations A and B. You can switch between the stations using the button (Station A/B).

In this job you can again use the automatic directions input when orienting the sets. If you mouse-drag from the measured data list a station (line with the red number of the station), to the calculation window in the area for orientation of the directions of sets, the program will automatically load all the measured directions on the list. If the program finds the pertinent coordinates of the orientation points on the lists, it will consider them orientations; the directions without coordinates will be considered calculated points.

It is easy to distinguish the orientations from the calculated points because a checking on/off box is displayed next to the orientations. If the orientation of the set has been calculated, then there are also angle deviations displayed.

If you enter the orientations and the determined points in this way for both stations, you can initiate the calculation of the coordinates of the determined points by using the button (Calculation). The program goes step by step through both lists of the determined points and searches for the points of identical numbers. If it finds such a pair, it calculates the coordinates of the point by forward intersection by oriented directions. If the zenith distances, or exaggeration are also entered, the program will automatically calcu-late the point height. If the zenith distances, or exaggeration, are measured from both stations, the height will be calculated twice. In such a case, two heights, their difference and the average height will appear in the record.

The calculated points can be placed on the list in arbitrary order, the only condition is that the point numbers from measurements from both stations must be identical. If there are points entered on one of the stations which were not entered on the second station, the program will ignore them during the calculation.

You can drag the result coordinates onto the list using a mouse in the same way as in either job. After the transfer, point with the mouse in the result part of the calculation window (but not on the actual list of the calculated points).

Before the calculation, you have to orient the sets on both stations in the same way as described in detail in the polar method. In the dialog window the data on only one station is always displayed, you can switch to the other station by pressing the button (Station A/B). If both sets are oriented, you can calculate the individual determined points by dragging the measured directions from the measured data list and pressing the button (Calculation).

If the minimum angle of intersection is in the selected tolerance set, the program will compare it with the real angle and display a warning message if needed.