The Selection tool allows you to select objects like brushes, entire entities or bezier patches in your map and move, scale, rotate or shear them. Apart from these functions directly activated by the Selection tool, CaWE provides a lot more functions that are related to selected objects. Since these functions are only usable with one or more objects, the Selection tool is a very important instrument to create maps.
You can activate the Selection tool by clicking on the related icon marked in the left screen or by pressing the
SHIFT+S keyboard shortcut.
To select an object, click the object once. In the 3D view, click on any surface that is part of the object to select it. In the 2D view click either on an edge that is part of the object or on its center marker.
In the 3D view, the surface of the object will be changed in color and its edges are colored yellow to mark it as selected. In the 2D view, the edges of the selected object are colored red.
To select one or more objects you can also drag a selection box in a 2D view window. Releasing the mouse button opens the selection box, but does not select the objects yet. You can move and scale this selection box until it covers all objects you want selected. To eventually select the objects, press the
ENTER key. This way all objects that are covered whole or partially by this selection box are selected. Note that you can also scale the selection box in another 2D view to create a spatial selection box and narrow down the selected objects.
You can change the behavior of a selection box in the Configure CaWE Options dialog at the 2D Views tab. Automatic infinite selection in 2D windows (no ENTER) enables you to drag a selection box and instantly select all objects by releasing the mouse button instead of pressing the
ENTER key. This way however you loose the ability to open a spatial selection box.
If Selection box selects by center handle only is activated, only objects whose center handle is covered by a selection box count as selected objects.
Another way to select more than one object is to select objects while pressing the
CTRL key. This way you can choose as many objects as you want and perform an action on all these objects simultaneously.
You can also deselect all selected objects by pressing the
ESC key, which clears the selection.
Now that one ore more objects have been selected you can perform actions on them.
By clicking inside the selection box of an object, you can drag it in a 2D view and move its position to a new location. If grid snapping is activated, you can ignore it while moving the object by pressing the
ALT-key. This also works with the transformations described below.
You can also move objects with the “arrow” keys, if you select the Arrow keys nudge selected object/vertex option in the Configure CaWE Options dialog under 2D Views.
An easy way to duplicate objects is using the Clone function while moving an object. Simply move your object as described above, but before releasing the left mouse button to move the object, press and hold the
SHIFT key. In this way a clone of the object is created at its new location. Note that cloning an object while moving it with the “arrow” keys is not supported.
To resize, rotate or shear an object you have to select the appropriate transformation mode. You can switch between the 3 modes by clicking inside the selection box of the object you want to transform. Different transformation modes are marked by handles at the edges and vertices of the selection box.
A dashed rectangular box is drawn around a selected object by the editor (this box is only visible if the object itself isn't rectangular). The resize mode is marked by white squares at the edges and vertices of this box. By moving the mouse over one of these squares and dragging this square by holding down the left mouse button you can resize the object in the direction of the square you clicked on.
The rotate mode is marked by white dots at the vertices of the box. Moving the mouse over one of these dots and dragging this dot by holding down the left mouse button rotates the object smoothly. It is also possible to rotate the object in multiples of 15 degrees by pressing and holding down the
SHIFT-key while rotating an object.
You can change the default behavior to rotating in 15 degree steps if you select the Default to 15 degree rotations option in the Configure CaWE Options dialog under 2D Views. If this option is select, pressing
SHIFT will allow you to rotate the object smoothly.
White squares at the edges of the selection box mark the shearing mode. By left clicking on a square and moving the mouse while holding the left mouse button down this edge can be moved in two directions along its own axis and in this way the object is deformed.
To delete a selected object just press the
DEL-key on your keyboard or choose Delete from the Edit menu.
Once the Selection tool is activated, its option bar is visible above the view windows. This bar contains selection parameters and buttons for further functions related to selections.