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Beginning AutoCAD® 2019 Exercise Workbook. Cheryl R. Shrock
Читать онлайн.Название Beginning AutoCAD® 2019 Exercise Workbook
Год выпуска 0
isbn 9780831194741
Автор произведения Cheryl R. Shrock
Жанр Программы
Издательство Ingram
2. Select the Object Snap Tab.
3. Select the Object Snaps desired.
(In the example below, Object Snap Endpoint, Midpoint and Intersection have been selected.
Note :
Try not to select more than 3 or 4 at one time.
If you select too many, the cursor will flit around trying to snap to multiple snap locations. And possibly snap to the wrong location.
You will lose control and it will confuse you.
4. Select the OK button.
5. Turn on the Object Snap button on the Status Bar. (Blue is on)
6. Now try drawing the line from the endpoint to the midpoint again but this time do not select the “Object Snap Menu”. Just move the cursor close to the endpoint and the cursor will automatically snap to the end of the line.
7. Move the cursor to approximately the middle of the right-hand vertical line and the cursor will automatically snap to the midpoint of the line.
8. Move the cursor close to the lower endpoint of the left-hand vertical line and the cursor will automatically snap to the lower endpoint of the left line.
Running Object Snap is very handy but remember do not select more than 3 or 4 at a time. The selections will fight each other and you may end up snapping to a location that you did not want.
If you wish to snap to a location that is not preset, just select the Object Snap Menu, as shown on page 4-2, and select the one you want. Running Object Snap and Object Snap work together very well but it may take a little practice.
The Zoom command is used to move closer to or farther away from an object. This is called Zooming In and Out.
The Zoom commands are located on the Navigate Panel of the View Tab and are off by default. Select the View Tab then right click on any Panel and select Show Panels, activate the Navigate Panel. (To show Panels refer to page 1-11.)
1. Select the Zoom command by using the following:
Ribbon = View Tab / Navigate Panel
2. Select the
The following are descriptions of the most commonly used zoom tools.
Extents = Displays all objects in the drawing file, even objects outside of the drawing limits.
Window = Zoom in on an area by specifying a Window around the area.
Previous = Returns the screen to the previous display. (Limited to 10)
Realtime = Interactive Zoom. You can zoom in or out by moving the cursor vertically up or down while pressing the left mouse button. To stop, press the <Esc> key.
All = Zooms to drawing limits or Extents, whichever is greater.
In or Out = moves in 2X or out 2X
You may also select the Zoom commands using one of the following:
Right click and select Zoom from the Shortcut Menu.
(Refer to Intro-5 for right click settings.)
Keyboard = Z <Enter>. Select from the options listed.
How to use Zoom / Window
1. Select Zoom / Window (Refer to previous page).
2. Create a Window around the objects you want to enlarge.
(Creating a "Window” is a similar process to drawing a rectangle. It requires a first corner and then diagonal corner.)
Magnified to this view Note: The objects have been magnified. But the actual size has not changed.
How to return to Original View
1. Type: Z <Enter> A <Enter> (This is a shortcut for Zoom / All).
Or you can select the “All” tool from the Panel shown on the previous page
When drawing with a computer, you must “set up your drawing area” just as you would on your drawing board if you were drawing with pencil and paper. You must decide what size paper you will need, what Units of measurement you will use (feet and inches or decimals, etc) and how precise you need to be. In CAD these decisions are called “Setting the Drawing Limits, Units and Precision”.
Drawing Limits
Consider the drawing limits as the size of the paper you will be drawing on.
You will first be asked to define where the lower left corner should be placed, then the upper right corner, similar to drawing a Rectangle. An 11" × 8.5" or 297 mm × 210 mm piece of paper would have a lower left corner of 0,0 and an upper right corner of 11, 8.5, or 297, 210. (11 or 297 is the horizontal measurement X-axis, and 8.5 or 210 is the vertical measurement Y-axis.)
How to Set the Drawing Limits
Example:
1. Start a New drawing using either the inch-helper.dwt or the metric-helper.dwt (Refer to page 2-6).
2. Select the Drawing Limits command by typing: Limits and then press <Enter>.
3. The following prompt will appear:
Command: '_limits /
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.0000,0.0000>:
4.