Arc
The Arc command allows users to measure the radius, perimeter, angle and arc length.
Click and drag the mouse to create an arc with 3 points. Place the mouse pointer at one red point of the
arc, then click and drag the mouse (arrow → hand pointer) to change the shape of the arc. Place the
mouse pointer on the arc, then click and drag the mouse (arrow → crosspointer) to move the arc.
Ellipse
The Ellipse command measures the major half axis, minor half axis, area and perimeter.
Place the mouse pointer on the extreme point of the major or minor half axis, then click and drag the
mouse when the hand pointer appears to change the size and shape of the ellipse. Place the mouse
pointer on the center of the ellipse, then click and drag the mouse when the cross pointer appears to
move the ellipse.
Polygon
The Polygon command measures the area and perimeter.
To complete a polygon, double click the left mouse button on the end point.
Place the mouse pointer on any edge of the polygon, then click and drag the mouse when the hand
pointer appears to change the size of the polygon. Place the mouse pointer on any point of the polygon,
then click and drag the mouse when the cross pointer appears to move the polygon.
Irregular
The Irregular command measures the area and perimeter of irregular figures. Click and drag the left
mouse button on the image to drawn an irregular image, release the button to complete the shape
automatically. Click and drag the mouse when the cross pointer appears to move the irregular figure.
Freehand line
This Freehand Line command allows users to measure the length of free lines.
Place the mouse pointer on the free line, then click and drag the mouse when the cross pointer appears
to move the free line.
Angle
3 points set by the left mouse button will define an Angle. Depending on the drawing, the internal or
external angle is measure. Place the mouse pointer at the end of the angle leg, then click and drag the
mouse (arrow → hand pointer) to change the angle. Place the mouse pointer on any point of the angle,
then click and drag the mouse (arrow → crosspointer) to move the angle.
Parallel
Parallel allows to measure the distance between 2 parallel lines. Draw the first line and end it by mouse
click. Moving the mouse creates a parallel line. Both lines can be moved by clicking the grey middle
marking (arrow →cross).
Marker
Using Marker allows to highlight defined points of interest. The x/y coordinates are displayed.