11. FORMWORK

CHAPTER 11 'FORMWORK' 32 Center, Ray Graphics 1. After activating the command, you use the left mouse button to set a point as the centre of the arc. 2. You define a second point on the screen (which can also be defined with the help of the design tools), which will determine, together with the centre, the radius of the arc. Immediately the circle is drawn from which you will graphically cut off (with the help of the left mouse button by defining 2 points as edges) the arc are interested in. The positive direction for the definition of the ends of the arc is counterclockwise. This means that each time the part of the circle that starts from the first end you define and ends, if you move counterclockwise, at the second end, remains on the screen. Center, Radius Data The import procedure is the same as described above, except that you specify the radius of the arc by typing its value in centimeters in the dialog box that opens immediately after selecting the arc center. Centre, Data, Data You define the point of the arc's center and a dialog box opens immediately in which you enter, in order, the Radius of the arc, the Angle from which it will start to be drawn and the Angle that defines the point of the end of the arc. The angles are measured counterclockwise. The starting point of measurement is the semi-major line having its origin at the defined centre of the arc and its direction in the positive direction of the x-x' axis. The values of : "Angle From" and "Angle To" can also be negative. By closes the dialog box and draws the arc on the screen. Three Points To draw the arc, you define 3 points with the left mouse button (the beginning, an intermediate point and the end of the arc).