Select or move the geometry

Drag coordinate system

Delete the selected geometry

Clear

Point

Select two points to create midpoint

Separation of attachment point from parent object

Create segment with two points

Fixed length line:select a point and enter the length of the segment

Create line with two points

Create ray with two points

Create vector with two points

Polyline:select all the vertices in turn, then click the first point

Perpendicular line:select a point and a straight line to be vertical

Perpendicular bisector line:select two points or a line segment

Parallel line:select a point and a line to parallel

Equal vector:select a point and a vector to parallel

Angle bisector:select three points or two straight lines

Tangent line:select a point and a circle

Polar line:select a point and a circle

Polygon:select all the vertices in turn, then click the first point

Regular polygon:select two points and enter vertex number

Circle:select center point of the circle and a point in circlein turn

Circle:select not three points on the same line

Compasses:select a point to determine the center of the circle and a segment to determine the radius of the circle

Semicircle arc:select two points,draw from the starting point to the end of the counter clockwise

Circular arc:select the center,the starting point,the end point in turn,draw from the starting point to the end of the counter clockwise

Circular arc:select not three points on the same line

Circular sector:select the center,the starting point,the end point in turn

Circular sector:select not three points on the same line

Measure

Coordinate

Equation

Length

Distance

Angle

Slope

Perimeter

Area

Radius

Arc Length