# Intersection tools

This topic applies to ArcEditor and ArcInfo only.

COGO intersection tools are used to create new points from the intersection of dimensions. For example, a bearing-bearing intersection creates a point at the intersection point of two bearings. If the bearings do not intersect, no point can be created.

Another example of a COGO intersection is the bearing-distance intersection, where two possible intersection points are created from the intersection of a distance radiating outward from one point and a bearing from a different point.

In the parcel fabric, you can work with bearing-bearing, distance-distance, and bearing-distance intersection tools for both parcel traverse and construction lines.

## Bearing-bearing intersection

A new parcel point or construction point can be created from the intersection of two line directions, or a bearing-bearing intersection. The point created from the bearing-bearing intersection creates a new line in the parcel traverse or construction grid. The end point or From point of the new line is the point created from the bearing-bearing intersection. The starting point of the line is the end point or To point of the previous line in the parcel traverse or construction grid.

The bearings of the intersection lines can be manually entered or obtained by clicking existing lines or curves (chord will be used).

To use the Bearing-Bearing intersection tool when creating a parcel traverse line or construction line, follow these steps:

- Using the Construction Tool , click the parcel point or construction point that will be the starting point of the line created by the bearing-bearing intersection.
- Click the Create a point at the intersection of the two lines tool on the Parcel Details dialog box.
- In the Bearing bearing Intersect dialog box, type the bearing of the first intersection line. By default, this line will be from the end point of the previous line in the traverse or construction grid.
- Click the clear button under the second From Point ID: label and click a point that will be the from point of the second intersection line.
- Type a bearing for the second intersection line. By default, a bearing will automatically be populated such that the second intersection line intersects with the first intersection line.
- Click OK to create the intersection point and the new line in the parcel traverse or construction grid.

## Distance-distance intersection

A new parcel point or construction point can be created from the intersection of two line distances. The distance-distance intersection has no reference to bearings. The intersection requires two distances, which radiate out from two different points.

The distance-distance intersection results in the creation of two possible intersection points.

The point chosen and created from the distance-distance intersection creates a new line in the parcel traverse or construction grid. The end point or From point of the new line is the point created from the distance-distance intersection. The starting point of the line is the end point or To point of the previous line in the parcel traverse or construction grid.

The distances of the intersection lines can be manually entered or obtained by clicking existing lines or curves (chord will be used).

To use the Distance-Distance intersection tool when creating a parcel traverse line or construction line, follow these steps:

- Using the Construction Tool , click the parcel point or construction point that will be the starting point of the line created by the distance-distance intersection.
- Click the Create a point at the intersection of two circle distances tool on the Parcel Details dialog box.
- In the Distance Distance Intersect dialog box, type the distance of the first intersection line. By default, this line will be from the end point of the previous line in the traverse or construction grid.
- Click the clear button under the second From Point ID: label and click a point that will be the from point of the second intersection line.
- Type a distance for the second intersection line. By default, an intersection point is automatically chosen and highlighted in green.
- Click the Switch button to change the intersection point and choose the other point.
- Click OK to create the intersection point and the new line in the parcel traverse or construction grid.

## Bearing-distance intersection

A new parcel point or construction point can be created from the intersection of a bearing from one point and a distance from a second point. The bearing-distance intersection results in the creation of two possible intersection points.

The point chosen and created from the bearing-distance intersection creates a new line in the parcel traverse or construction grid. The end point or From point of the new line is the point created from the bearing-distance intersection. The starting point of the line is the end point or To point of the previous line in the parcel traverse or construction grid.

The bearing and distance of the intersection lines can be manually entered or obtained by clicking existing lines or curves (chord will be used).

To use the bearing-distance intersection tool when creating a parcel traverse line or construction line, follow these steps:

- Using the Construction Tool , click the parcel point or construction point that will be the starting point of the line created by the bearing-distance intersection.
- Click the Create a point at the intersection of an angle and distance tool on the Parcel Details dialog box.
- In the Bearing Distance Intersect dialog box, type the bearing of the first intersection line. By default, this line will be from the end point of the previous line in the traverse or construction grid.
- Click the clear button under the second From Point ID: label and click a point that will be the from point of the second intersection line.
- Type a distance for the second intersection line. By default, an intersection point is automatically chosen and highlighted in green.
- Click the Switch button to change the intersection point and choose the other point.
- Click OK to create the intersection point and the new line in the parcel traverse or construction grid.