Welcome to Creating the Components

We create a Word Model in the document by moving the mouse cursor with released keys over the Component Model title in Editing Box, pressing and holding the left mouse key and dragging the mouse cursor towards the middle of the document frame. As mouse cursor enters the document area it changes its form from "stop" to "＋". We will drag the mouse cursor toward the center of the document and release the left mouse. Now, a short vertical caret appears indicating the place where we may start edditing the title text. We type in the component title, e.g. "Support" (without the quotation marks). To end editing the title, click by left mouse key outside of the component title. Now, the component appears consisting of the boundary rectangle, a title in the center and two power ports, one power-in, and the other the power-out, generated in a strip around the title (see Figure 1 below at down-left). The component boundary is shown in red color, which indicates that it is in the selected state. We may remove the component selection by clicking by the left mouse key somwhere in the free space in the document.

Figure 1

Figure 2

Figure 3

By default, when a component is created two power ports are created as well as shown in Figure 1 above at the left. As discussed Support has a single power-out port at the top and a control-out port at the right. Thus, we will pick the right port by the left mouse key, hold it down and drag it around the component perifery to the middle and release the key. The left port we delete by selecting it (i.e. by clicking on it by the left mouse key) and pres Del at the keyboard top. Finally, we move the mouse cursor (with the keys released) to Port's portion of Editing Tools and over Control-out port, press on it and hold, and then dragg it towards Support component. As mouse cursor enters the strip around the component title it changes its form from "stop" to "＋". We move the mouse to the right side of the component and realise the left mouse key. At the end we pick up by mouse the component Support title, press it and drag it to the left bottom of the document window (Figure 2 up above at the middle). In similar way we create other components and arrange them as in Bond Graph model. Note that the top power port of Particle component should be directed into the component, not outwards. Hence, to change its direction we select it and then click Change Port tool button, or use menu command Edit/Change Power Sense.

Finally, we will connect the components by bonds. It is easy. Thus, to connect Rod bottom port to Support's top port by a bond, we press mouse cursor by the left key to the port, hold it and drag orthogonaly to the component boundary toward the top Support port. As we drag the cursor a bond line appears under it. We finish drawing the bond line when the mouse is over the other port and we release the key (see Figure 3 up above on the right). Note that bond line need not to be a stright one. We may drag to an intermediate point somwhere in an empty space in the document, and then in zigzag manner move further on until we finish the line.

In similar way we may connect all component power ports. In this way we obtain Bond Graph model of the project structure, i.e. zero level structure of the model. Observe that in Model View parent Pendulum contains four children: Support, Rod, Particle, and Gravity. Their inter relationships are given by Bond Graph in Figure 3.