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Known Area - Hinge
The Known Area - Hinge method computes the coordinates of a new point on the line of a known polygon edge, and this point is a vertice of the modified polygon of the given area. Find more on how this method works in MAGNET Field.
- In the Input tab:
- From the
drop-down list select an object type to specify a known area:
- Points - select points to form the known area. Select them from the map
or from the list
. Points will be listed along with their codes in the table and the known polygon will be shown in the plot.
- Use
/
to hide / show the plot as required.
- Click
to view information about the highlighted point in the Selected Point dialog.
- Click
/
to change position of highlighted point(s) in the list. The plot will show how the area layout changes.
- Point List - enter an existing point list name manually or select it from the list
. Points of the selected point list will be listed along with their codes in the table and the known polygon will be shown in the plot.
- Use
/
to hide / show the plot as required.
- Click
to view information about the highlighted point in the Selected Point dialog.
- Click
/
to change position of highlighted point(s) in the list. The plot will show how the area layout changes.
- Linework - enter an existing linework name manually or select it from the map
or from the list
. Points of the selected linework will be listed along with their codes in the table and the linework will be shown in the plot. The start and end point of the non-closed linework form an edge of the known polygon.
- Use
/
to hide / show the plot as required.
- Click
to view information about the highlighted point in the Selected Point dialog.
- Area - enter an existing area name manually or select it from the map
or from the list
. Points of the selected area will be listed along with their codes in the table and the known polygon will be shown in the plot.
- Use
/
to hide / show the plot as required.
- Click
to view information about the highlighted point in the Selected Point dialog.
- Click Next to proceed to the Area tab.
- In the Area tab:
- Specify the hinge calculation parameters:
- Total Area displays the calculated area of the currently selected known polygon. Click
to return to the Input tab to modify the known area if necessary.
- In Required Area, enter the required area for your computation. You can express the areas in either sq. JobUnits or acres.
- From the Rotation Point drop-down list, select a hinge point for a polygon of required area.
- Select the Direction of hinge rotation from the list: Counter Clockwise or Clockwise.
- In Calc Point, enter a name of the new calculated point. If required, enter a new code for the point, or select an existing one, or click
to set the point's attributes. More...
- Click the Calc
button to calculate the task.
- In the Results tab:
- Review the results of the calculation:
- Calc Point's coordinates.
- Areas in sq. JobUnits, acres and hectares for the known polygon (Total Area), created polygon (Plot Area); and the polygon which was obtained as difference between known and created polygons (Difference).
- The list of points constituting the known polygon vertices in the correct order.
- Click
to save the data to a *.txt file if required.
- To save the calculated point, select the check box
near the calculated point name and click
that will appear.
- The Map tab shows the job's objects with the illustration for the results and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
- The Drawing tab shows the illustration for the results and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
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