Moving an Element

This mode is probably the most important feature of Cinderella. It allows objects to be moved around. Usually this mode is used to move the free elements of a construction. For this place the mouse over a movable element, pick the element by pressing the left mouse button, and drag it (with the button still pressed) to the new desired position. After the button is released, another element can be moved around.

Cinderella distinguishes between two types of elements: movable elements and fixed elements. As the name indicates, movable elements are those that you can move around in this modus. The fixed elements are those whose position is already entirely determined by the rest of the construction. If, for instance, a point is defined to be the intersection of two already defined lines, then it is no longer movable and becomes a fixed element. You can visually distinguish movable points from fixed points by their appearance: the movable points are drawn brighter.

There are six types of movable elements:

• Free Points: Points that are not dependent on other elements of the construction. These points can be moved around freely.
• Points on a line: Points may be defined to be always incident to a certain line. During a move these points slide along the line.
• Points on a circle: Points may be defined to be always incident to a certain circle. During a move these points slide along the circle.
• Line with a slope: A line may be defined to be always incident to an already constructed point, with no further restrictions. Such a line can be picked directly for a move. During the move the line rotates around the point.
• Circles by center and radius: A circle that is defined by its center and its radius may be scaled during the move mode. You pick the boundary of the circle with the mouse and drag the mouse. The radius changes according to the actual mouse position. You can move the whole circle by dragging its center point.
• Texts and Measurements: Texts and measurements may be also dragged around in the move mode. You pick the text and move it to the desired position. Texts and measurements may be placed everywhere in the view. The boundary of the view has snap points that support the creation of nice layouts. Texts and measurements may be also "docked" to points of the construction.

There is one more reason to use the "move-mode": you can use it to change the position of labels. For this press the control-key of the keyboard, pick the label with the mouse and move it to the new position. However, labels cannot be moved to any position. They must be somehow close to their corresponding element. Movements that drag the label too far away are blocked automatically.

Synopsis

Move elements by dragging.

See also

• Add a point
• Line through point
• Circle by radius
• Add text