Description：

Solve their relative relationship through two known points.

Calculation result：

1. Azimuth angle α

2. 2D distance L

3. Height difference H

4. Slope distance S

5. Slope i

6. Northing difference △ N

7. Easting difference △ E

Description：

Solve their relative relationships through three known points. Optional arc.

Calculation result：

1. Point C longitudinal offset L

2. cross offset r

3. P-coordinates of the vertical foot

Explanation：

Support the vertical foot P on the forward/reverse extension line of AB.

Description：

Similar to wire measurement. Given a point and its relative relationship with the target point, the coordinates of the target point can be solved.

Calculation result：

Target point P coordinates

Explanation：

The angle of rotation from the reference direction is clockwise, and the reference direction can be selected from the north direction or two-point orientation.

Description：

Given three points, solve for the relative deflection angle.

Calculation result：

Deflection angle α

Explanation：

Angle range: -180 ° < α ≤ 180 °.

Description：

Given two points and the relative relationship between the third point and the line connecting these two points. Optional arc.

Calculation result：

Point P coordinates

Explanation：

1. When the distance L along the line is less than 0, the starting deflection point is on the reverse extension line;

2. Deflection angle: The angle format is unified with the whole, -180 ° < α ≤ 180 °, default is 90 °, when α > 0, it is the right turn angle along the line, and vice versa;

3. Offset distance: When r > 0, it extends outward along the deflection position, and when r < 0, the direction is opposite.

Preview

Different conditions, different results

Description：

Intersection provides four methods. After selecting a method, the graphic and text definitions on the page will switch accordingly. Intersection methods can be selected: two bearings, two distances, bearing & distance and four points.

Calculation result：

Intersection P coordinates. If there are two intersections, the coordinates of the two intersections can be saved.

Explanation：

1. Azimuth conditions can be set to offset, left negative and right positive;

There are three types of intersection results: 1 intersection, 2 intersections, and no intersection.

3. Four kinds of results preview images are shown as follows:

Description：

Given three points, solve for the side length, interior angle, perimeter, and area of the triangle.

Calculation result：

1. Three side lengths

2. Three internal angles

3. Perimeter

4. Area

Description：

Given several points, find the average.

Calculation result：

Mean coordinates

Description：

Given the coordinates of 2 or 3 points, form a rectangle according to actual needs and calculate the coordinates of the remaining rectangle nodes.

Method optional: Calculate 2 points + distance, 3 points (vertical), 3 points (parallelogram), 2 points (square), and 2 points (diagonal).

Calculation result：

Coordinates of remaining nodes in the rectangle.

Explanation：

The ABCD nodes of the rectangle are defined by rotating counterclockwise.

Description：

Given two points, slope, and two distances

Calculation result：

Three points on a straight line.

Explanation：

1. The plane coordinates of point C and point B are the same.

2. The four points C ', C, A, A' are on the same straight line.

Description：

Given a polygon and some points, there are three different segmentation methods. Calculate the intersection of the segmentation line and the polygon.

Calculation result：

Intersection coordinates.

Explanation：

1. Support convex polygons;

2. The target area can be a percentage or a specific value.

Description：

Given point A and a custom distance L.

result：

With point A as the center and a circle of radius L, you can lay out any point on the circle.