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Beginning AutoCAD 2015. Cheryl R. Shrock
Читать онлайн.Название Beginning AutoCAD 2015
Год выпуска 0
isbn 9780831192822
Автор произведения Cheryl R. Shrock
Жанр Программы
Издательство Ingram
Method 3. LASSO Selection: Crossing, Window and Fence
Crossing:
Place your cursor in the area up and to the right of the objects that you wish to select (P1) then press and hold the left mouse button. (Do not release the mouse button.) Then move the cursor in an anti-clockwise direction until you have crossed the objects you want to select (P2) then release the left mouse button. (Note: The Lasso window will be green and outer line is dashed.)
Only the objects that the Lasso window crosses will be selected.
Window:
Place your cursor in the area up and to the left of the objects that you wish to select (P1) then press and hold the left mouse button. (Do not release the mouse button.) Then move the cursor in a clockwise direction until you have completely enclosed the objects you want to select (P2) then release the left mouse button. (Note: The window will be blue and outer line is solid.) Only the objects that this window completely enclosed will be selected.
Fence:
With the Fence option of the Lasso selection you can place the mouse cursor in any position you choose. For this example place your cursor at (P1) then press and hold the left mouse button. (Do not release the mouse button.) Move the mouse until you see either the green or blue lasso, then press the Spacebar until you see just a Dashed Fence Line. Move the mouse over the objects you want to select (P2) then release the left mouse button. Only the objects that the Fence line crosses will be selected.
Note: You may have to press the Spacebar twice to activate the Fence Line option.
There are 3 methods to erase (delete) objects from the drawing. They all work equally well. You decide which one you prefer to use.
Method 1
Select the Erase command first and then select the objects.
Example:
1.Start the Erase command using one of the following:
Ribbon = Home tab / Modify panel /
2.Select objects: Pick one or more objects Select objects: Press <enter> and the objects selected will disappear.
Method 2
Select the Objects first and then the Delete Key.
Example:
1.Select the object to be erased.
2.Press the Delete Key.
Method 3
Select the Objects first and then select Erase command from the Shortcut Menu.
Example:
1.Select the object to be erased.
2.Press the right Mouse button.
3.Select Erase from the Shortcut Menu using the left mouse button.
Note: Very Important
If you want the erased objects to return, select the Undo tool
The UNDO and REDO tools allow you to undo or redo previous commands.
For example, if you erase an object by mistake, you can UNDO the previous “erase” command and the object will reappear. So don’t panic if you do something wrong. Just use the UNDO command to remove the previous commands.
The Undo and Redo tools are located in the Quick Access Toolbar.
Note:
You may UNDO commands used during a work session until you close the drawing.
How to use the Undo tool.
1.Draw a line, circle and a rectangle.
Your drawing should look approximately like this.
2.Next Erase the Circle and the Rectangle.
(The Circle and the Rectangle disappear.)
3.Select the UNDO arrow.
You have now deleted the ERASE command operation.
As a result the erased objects reappear.
How to use the Redo command:
Select the REDO arrow and the Circle and Rectangle will disappear again.
Starting A New Drawing means that you want to start with a previously created
Template file. That is why I taught you “how to create a template” at the beginning of this lesson. You will use the 2015-Workbook Helper.dwt template each time you are instructed to Start a