Setup by Grid Lines

Setup by Grid Lines method allows you to determine the position of an occupation point using measurements to two points on each of two known lines and calculated distances from the intersection point of these known lines to each measured point.

To use this method, MAGNET Field requires data on two known lines intersecting each other and two measured points on each of these lines. Based on this data, MAGNET Field calculates four distances from the known lines intersection point to each of the measured points and performs resection to these points.

The icon brings up the Setup by Grid Lines dialog menu with additional options. More...

Setup by Grid Lines: Define Instrument setup

Set the occupied point:

  1. In Occupy, enter the name of the occupation point which position will be computed:

  2. Set Code for the point:
  3. Enter the height of the instrument ( HI) in the current units.
  4. Click Next to proceed in the Setup by Grid Lines: Specify Grid Lines dialog.

Setup by Grid Lines: Specify Grid Lines

Specify two known lines intersecting each other:

  1. Specify Line 1 and Line 2 in their respective groups.
  2. From the drop-down list, select the instrument position relative to the Line 1 direction. Choose either Right of line or Left of line.
  3. Position L is left of the line 1-2.

    Position R is right of the line 1-2.

  4. When both grid lines are specified, click Next to proceed in the Setup by Grid Lines: Measure Points dialog.

Setup by Grid Lines: Measure Points

Measure two points on each of two specified grid lines:

At this step, specify and measure four points successively: first point on first grid line, second point on first grid line, first point on second grid line, second point on second grid line.

  1. Type in the name of the point.
  2. Set Code for the point:
  3. Click Next to proceed with measurement of the specified point.
  4. Follow the displayed instruction.
  5. When ready, click / to take measurements. More...
  6. Go trough steps 1-5 for every required point. After the last point is measured the Setup by Grid Lines: Results dialog opens.

Setup by Grid Lines: Results

Review, accept and save the results of setup by grid lines.

The dialog displays the data collected from the performed measurements:

If there is sufficient data to compute the setup by grid lines, the resection's results are displayed: standard deviations for coordinates and calculated scale factor.

Note: Grayed Scale Factor indicates that this resection will not affect the scale factor currently used in job.

Use the context menu to manage the list of performed measurement sets:

Click to save the results to a *.txt file.

Click to return to Setup by Grid Lines: Measure Points and re-measure four required points.

Click Accept to open the Point Check dialog and save to the job the determined occupation point coordinates based on performed Setup by Grid Lines.


Setup by Grid Lines: Pop-up menu

Click to open the Setup by Grid Lines dialog menu: