Intersection Dialog

Computes an intersection using one of the following methods:

Bearing-Bearing
Bearing-Distance
Distance-Distance

Steps for Creating an Intersection

Fill in the information you have. You can use equations for Bearing and Distance. For example, enter "4..5" to recall the Bearing between points 4 and 5.
As soon as an intersection is completed, Intersection 1 and Intersection 2 will become active. For bearing-bearing intersections, only one intersection is possible (Intersection 1). For all the others, two intersections are possible (Intersection 1 and Intersection 2).
You can View the intersections to decide which one you want.
Enter the point labels you want to store the intersection points under in Intersection 1 and Intersection 2.
Choose Save to save the intersections as part of the survey. If you do not choose Save, the intersections will not be saved.
Choose Clear to do another intersection or Close to exit.

Offsets

To create an intersection at a bearing parallel to a line but to the left, enter a negative (-) offset. A positive (+) offset goes to the right.

Intersecting a Line

Recall the end points of the line in Point 2 and Point 3. The program will look to see if there is a curve between these two points and create the intersection on the curve between Point 2 and Point 3 instead of a straight line between the two.

If you specify an offset along the line you recalled, the offset is left or right as seen from Point 2 looking toward Point 3.

Point 1, Bearing, Offset, Distance

Establish line 1 by entering a starting pt (Point 1), a Bearing or Distance and an Offset. You can use equations for Bearing and Distance or use the [>] pick button to select points and bearings from the current drawing.

Point 2 or Beginning of Line, Bearing, Offset, Distance

Establish line 2 by entering a starting pt (Point 2/PC), a Bearing or Distance and an Offset. You can use equations for Bearing and Distance or use the [>] pick button to select points and bearings from the current drawing.
To intersect a curve, you must recall the end points of the curve in Point 2/PC and Point 3/PT.

End of Line

Enter the end point of the line to intersect to use the [>] pick button to select the point from the current drawing.

Or Select a Line

Use [>] pick button to select the line from the current drawing. The end of the line you click closest to well be Point 2 in this dialog.

Accept intersections beyond the end points of the line

By default, TPC only considers intersections between the end points of the line to be valid. To include intersections beyond the end points of the line, turn this option ON.

Computed Intersections

Once the intersection points are computed, the Compute Intersections fields 1 and 2 change from a gray color to a normal color, indicating that the points have been computed and can be labeled.

Enter a point label for one or both. If the point you enter already exists, you will have the option of updating it with the computed intersection, creating a unique point based on the one you entered, or just going to the next available point number.
Or use the [>] pick button to select points from the current drawing.

Edit

Choose Edit to enter a description and point symbol for the computed point. You can also protect the points coordinates.

Save

Newly created intersection points must be added to the coordinate database before selecting Clear or Close.

The program prompts you for Intersection 1 first, then Intersection 2. You can act on either one, both, or neither.

Plot

Select Plot to append the intersection to the ‘Point Plot’ traverse. Once appended, the intersection will be added to the current drawing.

Summary

Creates a report window, listing the bearings and distances from points 1 and 2 to any intersections computed.

Clear

Clears the data in the dialog and starts a new intersection.

View

View the intersection graphically.

Close

Closes the Intersection Dialog when you are finished.