Top 33 How To Draw Line With Coordinates In Autocad 12858 Votes This Answer

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Type an X coordinate value followed by a comma. Then type a Y coordinate value and press Enter for a 2D coordinate value. Or type a comma again to provide a Z coordinate value for a 3D coordinate value and then press Enter.

How do you enter coordinates in AutoCAD?

Type an X coordinate value followed by a comma. Then type a Y coordinate value and press Enter for a 2D coordinate value. Or type a comma again to provide a Z coordinate value for a 3D coordinate value and then press Enter.

How do you draw a line in northing and easting in AutoCAD?

How do you draw a line with latitude and longitude in AutoCAD?

How do you draw a line with latitude and longitude in Civil 3d?

How do I insert easting and northing coordinates in AutoCAD?

How do I set coordinates in AutoCAD 2019?

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AutoCAD Draw Line with Coordinates

AutoCAD Draw Line with Coordinates

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Help

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Have You Tried: Coordinate Entry with Dynamic Input | AutoCAD 2021 | Autodesk Knowledge Network

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• Summary of article content: Articles about Have You Tried: Coordinate Entry with Dynamic Input | AutoCAD 2021 | Autodesk Knowledge Network Updating …
• Most searched keywords: Whether you are looking for Have You Tried: Coordinate Entry with Dynamic Input | AutoCAD 2021 | Autodesk Knowledge Network Updating Have you ever tried entering a coordinate value only to get an unexpected result? Chances are, you have worked with coordinates as they are one of the fundamental pieces of information required by most commands in AutoCAD to create or modify objects. This article looks at entering coordinates and the impact Dynamic Input has on coordinate entry. Note: The video doesn’t contain
• Table of Contents:

What’s Dynamic Input

Turning Dynamic Input On or Off

Enter Coordinate Values with Dynamic Input

Tips for Entering Coordinates

Control Dynamic Input

Tips for the Display of Dynamic Input Tooltips

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How to Enter Northings & Eastings in AutoCAD | Techwalla

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• Summary of article content: Articles about How to Enter Northings & Eastings in AutoCAD | Techwalla Updating …
• Most searched keywords: Whether you are looking for How to Enter Northings & Eastings in AutoCAD | Techwalla Updating Northing and easting numbers represent Universal Transverse Mercator coordinates, which are horizontal and vertical positions on a global map grid. The northing value is the vertical position and the easting value is the horizontal location.
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Step 1

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To Create Lines by Specifying Latitudes and Longitudes | Civil 3D | Autodesk Knowledge Network

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• Summary of article content: Articles about To Create Lines by Specifying Latitudes and Longitudes | Civil 3D | Autodesk Knowledge Network Updating …
• Most searched keywords: Whether you are looking for To Create Lines by Specifying Latitudes and Longitudes | Civil 3D | Autodesk Knowledge Network Updating A coordinate system must be specified in the drawing. The order of the prompts is controlled by the Transparent Command Ambient drawing settings. Click Home tabDraw panelLine drop-downCreate Line By Latitude/Longitude Find. Enter a latitude value. Enter a longitude value. Note: The order in which you are prompted for latitude and longitude is controlled by the Transparent
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To Draw Lines | AutoCAD LT 2019 | Autodesk Knowledge Network

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• Summary of article content: Articles about To Draw Lines | AutoCAD LT 2019 | Autodesk Knowledge Network Using Specific Coordinates · Click Home tab > Draw panel > Line. Find · Type the coordinate value for the first point by typing the X value, a … …
• Most searched keywords: Whether you are looking for To Draw Lines | AutoCAD LT 2019 | Autodesk Knowledge Network Using Specific Coordinates · Click Home tab > Draw panel > Line. Find · Type the coordinate value for the first point by typing the X value, a … Click Home tab > Draw panel > Line. Find Specify the start point and end point of the line segment by clicking in the drawing area. Continue specifying additional line segments. To undo the previous line segment, enter u at the prompt. Click Undo on the Quick Access toolbar to cancel the entire series of line segments: Press Enter or Esc when done or enter c to close a series
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Using Specific Coordinates

Using a Relative Coordinate

A Specific Length

At a Specific Angle

At a Specific Angle to Another Line

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Module 4: Drawing Lines Using Cartesian Coordinates – Introduction to Drafting and AutoCAD 2D

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• Summary of article content: Articles about Module 4: Drawing Lines Using Cartesian Coordinates – Introduction to Drafting and AutoCAD 2D Apply the LINE command to draw lines using the XY Cartesian Coordinate System using both absolute and relative coordinates. …
• Most searched keywords: Whether you are looking for Module 4: Drawing Lines Using Cartesian Coordinates – Introduction to Drafting and AutoCAD 2D Apply the LINE command to draw lines using the XY Cartesian Coordinate System using both absolute and relative coordinates.
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The Cartesian Coordinate System

Lastpoint

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HOW TO DRAW LINE IN AUTO CAD

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• Summary of article content: Articles about HOW TO DRAW LINE IN AUTO CAD Open the auto cad drawing sheet. · Open a drafting setting dialog box , left click dynamic input in pointer input. · In command type line , prompt … …
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  The lines have an important role in any type of drawing .There are many types

  of methods available for drawing lines in an auto cad. Generally three types of

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WHAT IS THE RECIPROCAL LEVELING

HOW TO CALCULATE LENGTH AND BEARING OF OMITTING MEASUREMENT IN TRAVERSING

Types Of Adjustment In Levelling

methods of measuring horizontal angles using theodolite

What Are The Difference Between Theodolite And Total Station

SETTING OUT RIGHT ANGLE IN SURVEYING

WHAT IS CITY SURVEYING

HOW TO CALCULATE AREA IN THE MAP

How to measure the magnetic bearing of the object

How to read reading of the theodolite

HOW TO DRAW LINE IN AUTO CAD

create shape file in Auto Cad civil 3d

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WHAT IS THE RECIPROCAL LEVELING

HOW TO CALCULATE LENGTH AND BEARING OF OMITTING MEASUREMENT IN TRAVERSING

Types Of Adjustment In Levelling

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AutoCAD Tutorial | Using Co-ordinates | CADTutor

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• Summary of article content: Articles about AutoCAD Tutorial | Using Co-ordinates | CADTutor AutoCAD allows you to use co-ordinates to draw objects rather than using pick points. For example you could draw a line like this: … …
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Introduction

Cartesian Co-ordinates

Polar Co-ordinates

The UCS Icon

Absolute & Relative Co-ordinates

The Status Bar

Local Navigation

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how to draw line with coordinates in autocad – triptychwallartphotography

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• Summary of article content: Articles about how to draw line with coordinates in autocad – triptychwallartphotography This AutoCAD 2008 tutorial covers additional ways to draw more precise lines using coordinates. Type 53 on the command line and press enter. …
• Most searched keywords: Whether you are looking for how to draw line with coordinates in autocad – triptychwallartphotography This AutoCAD 2008 tutorial covers additional ways to draw more precise lines using coordinates. Type 53 on the command line and press enter. how to draw line with coordinates in autocad
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Have You Tried: Coordinate Entry with Dynamic Input

Have you ever tried entering a coordinate value only to get an unexpected result? Chances are, you have worked with coordinates as they are one of the fundamental pieces of information required by most commands in AutoCAD to create or modify objects. This article looks at entering coordinates and the impact Dynamic Input has on coordinate entry.

Note: The video doesn’t contain audio or closed captions.

Note: Steps, images, and videos may differ slightly from your version of the product.

AutoCAD accepts the following coordinate value types:

Absolute Cartesian – Precise location by entering a two (XY) or three (XYZ) coordinate value.

– Precise location by entering a two (XY) or three (XYZ) coordinate value. Relative Cartesian – Location from a previous coordinate value using a two (XY) or three (XYZ) coordinate value.

– Location from a previous coordinate value using a two (XY) or three (XYZ) coordinate value. Polar – Location from a previous coordinate value based on a distance and an angle from the X axis to define a point. Note: If you work in 3D, AutoCAD also supports Cylindrical and Spherical coordinate entry. You can learn about these coordinate value types in the If you work in 3D, AutoCAD also supports Cylindrical and Spherical coordinate entry. You can learn about these coordinate value types in the About Entering 3D Cylindrical Coordinates and About Entering 3D Spherical Coordinates topics in the AutoCAD Online help system.

How you enter those coordinate value types depends on two factors:

Is Dynamic Input enabled?

Are you being prompted to specify a first or subsequent point?

What’s Dynamic Input? Before we talk about coordinate entry, we need to talk about Dynamic Input. Dynamic Input is a feature that allows you to enter coordinate, length, and angular values near the crosshairs along with text strings and command options. When a command is started, and if Dynamic Input is enabled, the main prompt of the current command is repeated near the crosshairs along with several tooltips that accept input. For example, if you start the CIRCLE command, AutoCAD prompts for a coordinate value to define the center point of the circle.

Here are the steps you would follow to draw a circle with a center point of 3.5,5 and a radius of 1.25 using Dynamic Input: Steps Results Start the CIRCLE command. Find AutoCAD prompts you for a coordinate value that represents the center point of the circle. Three tooltips are displayed with focus set to the second tooltip which represents the X coordinate value. In the second tooltip, type 3.5 followed by a comma.

The focus moves to the third tooltip which represents the Y coordinate value. In the third tooltip, type 5 and press Enter.

The absolute coordinate value of 3.5,5 is used as the center point of the circle and the next prompt of the CIRCLE command is displayed in the Dynamic Input tooltip. Note: Instead of pressing Enter to specify a 2D coordinate value, you could have typed a comma and then entered a number for the Z coordinate value. In the tooltip, type 1.25 for the radius of the circle and press Enter.

A circle with a center point of 3.5,5 is drawn with a radius of 1.25. In the previous example, you could have done one of three things at the Specify radius of circle prompt: Specified a radius value in the form of a length. Type in the radius value to use and press Enter, which is what was explained.

Type in the radius value to use and press Enter, which is what was explained. Specified a coordinate value from the center point of the circle to define the radius value. Type an X coordinate value followed by a comma. Then type a Y coordinate value and press Enter for a 2D coordinate value. Or type a comma again to provide a Z coordinate value for a 3D coordinate value and then press Enter.

Type an X coordinate value followed by a comma. Then type a Y coordinate value and press Enter for a 2D coordinate value. Or type a comma again to provide a Z coordinate value for a 3D coordinate value and then press Enter. Switched to the Diameter input option. Press the Down Arrow key twice and press Enter. When prompted for a diameter value, enter a length or coordinate value as described in the previous two bullets. When you were prompted for the radius of the circle, did you notice the icon with the downward arrow at the end of the tooltip? This icon indicates there are other options available. When prompted for a radius, clicking the downward arrow or pressing the Down Arrow key, displays a menu with the Diameter option. Choosing Diameter allows you to specify a diameter for the circle instead of a radius value. When the menu is displayed, you can move through the available options by pressing the Down and Up Arrow keys or the pointing device.

Turning Dynamic Input On or Off Dynamic Input is turned on by default and can be toggled on or off by clicking the Dynamic Input icon ( ) on the status bar or pressing F12. When on, the Dynamic Input icon should appear with a blue background ( Find). Note: If the Dynamic Input icon isn’t displayed on the status bar, on the far-right side of the status bar, click Customization ( Find ) > Dynamic Input. If the Dynamic Input icon isn’t displayed on the status bar, on the far-right side of the status bar, click Customization () > Dynamic Input.

Enter Coordinate Values with Dynamic Input When using Dynamic Input, the first coordinate value you specify for a command is assumed to be absolute unless specified otherwise. The following explains how to enter coordinate values in Dynamic Input tooltips: Absolute – Type a coordinate value in the format of #X,Y or #X,Y,Z Examples: #3.5,5 or #3.5,5,-1 Note: The # is only needed, if you want to specify an absolute coordinate value when prompted for a next point.

– Type a coordinate value in the format of #X,Y or #X,Y,Z Relative – Type @ and then a coordinate value in the format of X,Y or X,Y,Z Examples: @3.5,5 or @3.5,5,-1

– Type @ and then a coordinate value in the format of X,Y or X,Y,Z Polar – Type a distance, followed by a less than symbol (<), and then the angular value to define the direction from the X axis Examples: 3.5<45 or -1.25<60 – Type a distance, followed by a less than symbol (<), and then the angular value to define the direction from the X axis Polar Relative – Type @ and then type a polar coordinate value Examples: @3.5<45 or @-1.25<60 Note: All coordinate values are positive unless prefixed with a - (hyphen) to indicate a negative distance or angular value. Note: Entering coordinate values directly at the Command prompt in the Command Line window varies slightly from entering coordinate values in the Dynamic Input tooltips. If you want to enter an absolute value at the Command prompt, you don’t need to use the # prefix and all coordinate values entered are assumed to be absolute unless otherwise specified. In this exercise, you draw a rectangle with line segments by entering absolute, relative, and polar coordinates using Dynamic Input. Steps Results On the ribbon, click Home tab > Draw panel > Line. Find The LINE command is started. At the Specify first point prompt, enter #22.5,30.

This defines the first point of the line at an absolute coordinate of 22.5,30 on the current working plane. At the Specify next point prompt, enter 22,0.

This defines a point 22 units along the X axis and 0 units along the Y axis relative to the first point, resulting in a horizontal line that is 22 units long. Note: If a horizontal line isn’t drawn, enter u to undo the previous line segment and enter @22,0. See the Control Dynamic Input section for information. At the Specify next point prompt, enter 6<90. This defines a point 6 units away from the previous point at an angle of 90 degrees from the X axis, resulting in a vertical line that is 6 units long. Note: If you had typed -6, the vertical line would have been drawn downward at an angle of 90 degrees from the X axis. At the Specify next point prompt, enter #22.5,36. This defines an absolute coordinate of 22.5,36 which is 6 units above the original point on the Y axis, resulting in a horizontal line that is 22 units long. At the Specify next point prompt, enter c to close the rectangle and drawing the last segment to the first point specified. The resulting rectangle should start at 22.5,30 and have a length of 22 units and a width of 6 units. Tips for Entering Coordinates While it’s not required to use a # (pound sign) to define an absolute coordinate value when prompted for the first point, it is a good habit to include a # so you don’t have to worry about the rules of when it is and isn’t needed. Instead of pressing comma to move to the next Dynamic Input tooltip, you can press Tab if you are entering either an absolute or relative coordinate value that isn’t a polar coordinate value. If you frequently work in 3D, you can display the input tooltip for the Z coordinate value by checking Show Z Field for Pointer Input on the 3D Modeling tab of the Options dialog box (OPTIONS command). This setting isn't available in AutoCAD LT. Control Dynamic Input By default, the coordinate entry for the second or next point is relative to the previous point specified and the Dynamic Input tooltips are only displayed when a command is active. You can change the settings of Dynamic Input to control: When Dynamic Input tooltips are displayed The coordinate entry format for the second or next point The overall appearance of the tooltips The settings for Dynamic Input can be found on the Dynamic Input tab of the Drafting Settings dialog box (DSETTINGS command). You can display the Dynamic Input tab of the Drafting Settings dialog box, by doing one of the following: Right-click over the Dynamic Input button on the status bar and choose Dynamic Input Settings. At the Command prompt, enter dsettings. In the Drafting Settings dialog box, click the Dynamic Input tab. The following provides an overview of the settings on the Dynamic Input tab of the Drafting Settings dialog box: Pointer Input - Controls the behavior of coordinate entry for the second or next point, and when the coordinates are to be shown. - Controls the behavior of coordinate entry for the second or next point, and when the coordinates are to be shown. Dimension Input - Controls the behavior of dimension input tooltips used to request length, angular, and radius values. - Controls the behavior of dimension input tooltips used to request length, angular, and radius values. Dynamic Prompts - Controls the display of prompt and input tooltips near the crosshairs. - Controls the display of prompt and input tooltips near the crosshairs. Drafting Tooltip Appearance - Controls the appearance of the input tooltips; color, size, and transparency. The settings under Pointer Input impact how you enter coordinate values while Dynamic Input is active. Click Settings to open the Pointer Input Settings dialog box. In the Pointer Input Settings dialog box, you can control the format in which the second or next point needs to be entered while using Dynamic Input. The default format settings are: Polar Format and Relative Coordinates. Setting it to Relative coordinates saves you from having to enter the @ symbol before entering the second or next coordinate value for a command. The Visibility setting controls when the Dynamic Input tooltips are displayed. By default, they are only displayed when a command is active. Tips for the Display of Dynamic Input Tooltips If you set the Visibility setting to always display Dynamic Input tooltips, the current position of the crosshairs will be displayed in the Dynamic Input tooltips when a command isn’t active. Do you find the text to be a bit too small in the Dynamic Tooltips? If so, you can increase the size of the text by opening the Drafting Settings dialog box (DSETTINGS command), clicking on the Dynamic Input tab, and then clicking Drafting Tooltip Appearance. In the Tooltip Appearance dialog box, slide the Size slider to the right to increase the tooltip’s text size. Click OK twice to apply the changes.

To Draw Lines

To undo the previous line segment, enter u at the prompt. Click Undo on the Quick Access toolbar to cancel the entire series of line segments:

Using Specific Coordinates

Click Home tab > Draw panel > Line . Find Type the coordinate value for the first point by typing the X value, a comma, then the Y value, for example 1.65,4.25. Press the Spacebar or Enter. Do one of the following: If dynamic input is on: Type the pound sign (#) followed by the X-value, a comma, then the Y-value, for example #4.0,6.75.

If dynamic input is off: Type the X value, a comma, then the Y value, for example 4.0,6.75. Press the Spacebar or Enter.

Module 4: Drawing Lines Using Cartesian Coordinates – Introduction to Drafting and AutoCAD 2D

Module 4: Drawing Lines Using Cartesian Coordinates

Learning Outcomes When you have completed this module, you will be able to: Describe the geometry of points and lines. Describe the Cartesian Coordinate System. Define and explain the terms lastpoint, absolute coordinates, and relative coordinates. Apply the LINE command to draw lines using the XY Cartesian Coordinate System using both absolute and relative coordinates.

Geometry Lesson: Points and Lines

A point is defined as a single XY coordinate. It does not have a width, height, or depth. A line is the shortest distance between two XY coordinates. Lines can be horizontal, vertical, or inclined. Lines that are the same distance apart are called parallel lines. Perpendicular lines are at right angles to each other or 90 degrees apart. See Figure 4-1 and 4-2.

The Cartesian Coordinate System

To accurately draw an AutoCAD two dimensional (2D) drawing, you must enter XY coordinate locations. These XY coordinates are based on the Cartesian Coordinate System.

The Cartesian Coordinate System consists of two numbered lines crossing perpendicular to one another at their zero values. The horizontal axis is the X axis and the vertical axis is the Y axis. See Figure 4-3. A coordinate value is assigned to each location on the current construction plane. Throughout the AutoCAD 2D book you will be working on the same construction plane. Construction planes are fully explained in the AutoCAD 3D book.

When you are using a AutoCAD 2D command, each coordinate value consists of a pair of numbers, the first is the X coordinate and the second is the Y coordinate, written X,Y. The X and Y values must be separated by a comma. For example, X2,Y4 (entered in AutoCAD as 2,4) is the location 2 units to the right (positive) and 4 units up (positive) from X0,Y0 or 0,0.

The values can be either positive or negative. Positive numbers are default so the plus sign is not required. If the value is negative, the minus sign must precede the number. For example if entered in a an AutoCAD command, -3,5 is X minus 3 and Y positive 5.

Cartesian coordinates can be entered in a AutoCAD command as either absolute coordinates or relative coordinates.

Absolute Cartesian Coordinates

Absolute Cartesian Coordinates are always referenced to the absolute origin 0,0. The Absolute Cartesian Coordinate 3,4 (X3Y4) is 3 units to the right and 4 units upwards from 0,0 (X0Y0).

Negative values can also be used. The Absolute Cartesian Coordinate -4,2 (X-4,Y2) is 4 units to the left and 2 units upwards from 0,0 (X0Y0).

Relative Cartesian Coordinates

Relative Cartesian Coordinates are incremental to the lastpoint. To indicate to AutoCAD that the coordinate being entered is relative, the @ symbol must precede the coordinate value. For example, @2,6, which means ‘ from the lastpoint go 2 units in the positive X and 6 units in the positive Y ‘. Another example using negative values @4,-2 which means ‘ from the lastpoint go 4 units in the positive X and 2 units in the negative Y.

Lastpoint

The lastpoint is the last XY location that was used in an AutoCAD command. The lastpoint is very important to you when drawing in AutoCAD. AutoCAD remembers the lastpoint entered and saves it in the @ symbol. The @ symbol means ‘ The last absolute coordinate location ‘.

USER TIP: When you start a drawing, the first XY location is always specified using an absolute coordinate. After that, relative coordinates are used. It would be too difficult to draw using all absolute coordinates.

AutoCAD Command: LINE The LINE command is used to draw lines. Shortcut: L

WORKALONG: Drawing Lines Using Cartesian Coordinates – Part 1

Step 1

Using the NEW command, start a new drawing using the template: 2D English.

Step 2

Save and name the drawing: AutoCAD 2D Workalong 04-1. Save it in the folder: CAD Courses/AutoCAD 2D/Lab Exercises

Step 3

Enter the LINE command, as shown below, to draw the object shown in the figure. Keep in mind that you enter what is in bold font, the author’s comments are in italics, and everything else are AutoCAD responses or prompts. (Figure Step 3)

Command: LINE

Specify first point: 1.75,4

(Always start with an absolute coordinate. It must be a X then a Y separated with a comma.)

Specify next point or [Undo]: @5,0

(Then change to relative coordinates. Note the @ first, then X and Y.)

Specify next point or [Undo]: @0,2

Specify next point or [Close/Undo]: @-2.5,0

(A negative coordinate is used since the line is going in the negative X direction.)

Specify next point or [Close/Undo]: @0,1.5

Specify next point or [Close/Undo]: @-1,1

(When both the X and Y coordinates have a value other then zero, the line will be inclined.)

Specify next point or [Close/Undo]: @-1.5,0

Specify next point or [Close/Undo]: C

(You can use a C or 1.75,4 to close the last line and return to the first point.)

Command:

AUTHOR’S COMMENTS: Rather then just entering the coordinate values, try to understand the values you are entering by studying the Figure Step 3.

Step 4

Your completed drawing should match the figure. (Figure Step 4)

AUTHOR’S COMMENTS: If you have trouble drawing this object the first try, do not be concerned. Start it over again, from scratch, until you can complete it. The more practice you get drawing, the easier it will get.

Step 5

Save and close the drawing.

MUST KNOW: When drawing inclined lines using Cartesian Coordinates, the value of both the X and the Y coordinates cannot be zero. See example below. Command: LINE Specify first point: 4,3 Specify next point or [Undo]: @0,2 Specify next point or [Undo]: @-1.5,1 Specify next point or [Close/Undo]: @-1,0 Specify next point or [Close/Undo]: Command: Note to draw the inclined line, you have to enter a X value and a Y value that is not zero. In this example, @-1.5,1 If either X or the Y is zero, then the line would be either horizontal or vertical. See Figure 4-4. In Module 10, you will be taught how to draw incline lines using Polar Coordinates.

WORKALONG: Drawing Lines Using Cartesian Coordinates – Part 2

Step 1

Using the NEW command, start a new drawing using the template: 2D English.

Step 2

Save and name the drawing: AutoCAD 2D Workalong 04-2. Save it in the folder: CAD Courses/AutoCAD 2D/Lab Exercises

Step 3

Enter the LINE command, as shown below, to draw the object shown in the figure. (Figure Step 3)

Command: L

(L is the shortcut for the LINE command)

Specify first point: 7,5

Specify next point or [Undo]: @0,2

Specify next point or [Undo]: @-2,0

Specify next point or [Close/Undo]: @.75,1

(You can draw an inclined line by entering a number other then zero for both the X and Y.)

Specify next point or [Close/Undo]: @-3.5,0

Specify next point or [Close/Undo]: @-.75,-1

Specify next point or [Close/Undo]: U

(When you make an input error, enter a U to go back one step. More than one U can be entered to step back further. Ensure that you press the ENTER or SPACE after each one.)

Specify next point or [Close/Undo]: @.75,-1

Specify next point or [Close/Undo]: @-2,0

Specify next point or [Close/Undo]: @0,-2

Specify next point or [Close/Undo]: @1,0

Specify next point or [Close/Undo]: @0,.5

Specify next point or [Close/Undo]: @4,0

Specify next point or [Close/Undo]: @0,-.5

Specify next point or [Close/Undo]: 7,5

(The object was closed by entering the absolute coordinate of the first point.)

Specify next point or [Close/Undo]: Command:

Step 4

Your completed object should match the figure. (Figure Step 4)

AUTHOR’S COMMENTS: If you have trouble drawing this object the first try, do not be concerned. Start it over again, from scratch, until you can complete it. The more practice you get drawing, the easier it will get.

Step 5

Save and close the drawing.

USER TIP: When entering a decimal number the ends in a zero, for example 4.0, enter the number up to the zero only. In this case, 4. If the number is 3.6700, all you have enter is 3.67. AutoCAD will automatically adds the zeros.

Deleting Objects

To delete existing drawing objects, you can either use the ERASE command or the Delete key.

Using the ERASE Command

When deleting drawing objects using the ERASE command, the drawing objects can either be selected before or after the command is entered. If the command is entered before selecting the objects, select the objects when prompted by the ‘ Select Object ‘ prompt, as shown below. If the objects are selected before entering the ERASE command, there is no prompt.

Command: ERASE

Select Object:

Command:

Using the Delete Key

When deleting objects using the Delete key, select the object or objects before pressing the key.

AutoCAD Command: ERASE The ERASE command is used to permanently remove drawing objects from the drawing. Shortcut: E

WORKALONG: Deleting Drawing Objects

Step 1

Open the drawing: AutoCAD 2D Workalong 04-1.

Step 2

Using the SAVEAS command, save the drawing with the name: AutoCAD 2D Workalong 04-3. (Figure Step 2)

Step 3

Enter the ERASE command as shown below. Move the pickbox onto the horizontal line and select it by pressing the left mouse button. Move the cursor onto the vertical line and select it. Press the Enter key to execute the command. (Figure Step 3A, 3B, and 3C)

Command: ERASE

Select objects: 1 found

Select objects: 1 found, 2 total Select objects:

Command:

AUTHOR’S COMMENTS: When you select a drawing object inside a command they will highlight and appear dashed.

MUST KNOW: The lastpoint is the last XY location that was used in an AutoCAD command. The lastpoint is very important to you when drawing in AutoCAD. AutoCAD remembers the lastpoint entered and saves it in the @ symbol. The @ symbol means ‘ The last absolute coordinate location ‘.

Step 4

To delete drawing objects without entering a command, move the pickbox onto the lines,

as shown in the figure, and select them by clicking the left mouse button. They will highlight and appear dashed with small blue squares on them. When the lines display as shown in the figure, press the Delete key on the keyboard. (Figure Step 4A and 4B)

AUTHOR’S COMMENTS: The small blue squares that display on a selected object when selected are called grips. You will learn more about them later in the book and how to use them in the AutoCAD 2D Advanced book.

AUTHOR’S COMMENTS: If you want to unselect one or more drawing objects, press the Esc key. Sometime you have to press it twice to totally unselect the selected objects.

Step 5

Save and close the drawing.

MUST KNOW: To enter a positive number in AutoCAD, enter the number only. Positive is the AutoCAD default. If the number is negative, the ‘ – ‘ sign must precede the number. For example, if the number is 4.0, enter 4. If the number is -4.0, enter -4.

Key Principles

Key Principles in Module 4 The Cartesian Coordinate System consists of two numbered lines crossing perpendicular to one another at their zero values. The horizontal axis is the X axis and the vertical axis is the Y axis. Absolute Cartesian Coordinates are always referenced to the absolute origin 0,0. The @ symbol means ‘ The last absolute coordinate location ‘ or sometimes called the lastpoint. Relative Cartesian Coordinates must be preceded with @ symbol. To close the last line of a series of lines, enter either ‘ C ‘ (Close) or the absolute coordinate of the first point. To delete existing drawing objects, you can either use the ERASE command or the Delete key. Objects can either be selected before or after a command is entered. To unselect a selected drawing object, press the Esc key. Sometimes it has to be pressed twice.

Lab Exercise 4-1

Time allowed: 30 minutes.

Drawing Name Template Units AutoCAD 2D Lab 04-1 2D English Inches

Step 1

Start a new drawing using the template shown above.

Step 2

Save and name the drawing: AutoCAD 2D Lab 04-1 in the folder: CAD Courses/AutoCAD 2D/Lab Exercises.

Step 3

Using the LINE command, draw the object shown in the figure. (Figure Step 3A and 3B)

Step 4

Enter the UNITS command. In the Drawing Units dialogue box, set the Insertion Units to Inches. (Figure Step 4)

AUTHOR’S COMMENTS: You can find the Insertion scale in the Units column in the table under the lab exercise title.

Step 5

Check your drawing with the key. The key name is the same as the drawing name. (Figure Step 5)

AUTHOR’S COMMENTS: If you have trouble doing this, redo Module 3.

Step 6

Your drawing should match the figure. (Figure Step 6)

AUTHOR’S COMMENTS: Step 5 will insert a magenta colored overlay key on your drawing. If you see double objects or places where your objects and the magenta objects do not match, your drawing is inaccurate. If you only see one object, even though it may share the colors magenta and red, your drawing is accurate.

AUTHOR’S COMMENTS: If you have trouble completing this drawing the first try, do not be concerned. Start it over again, from scratch, until you can complete it. The more practice you get drawing, the easier it will get. When you get to Module 8, you will be taught how to fix a drawing so that you do not have to start over.

Step 7

Save and close the drawing.

AUTHOR’S CONSTRUCTION HINTS: Do your best to complete the lab exercise drawing without using the following hint. If you get stuck and can not complete it on your own, use the following hint to help you.

Hint 1

See Figure Hint 1.

Lab Exercise 4-2

Time allowed: 30 minutes.

Drawing Name Template Units AutoCAD 2D Lab 04-2 2D Metric Millimeters

Step 1

Start a new drawing using the template shown above.

Step 2

Save and name the drawing: AutoCAD 2D Lab 04-2 in the folder: CAD Courses/AutoCAD 2D/Lab Exercises.

Step 3

Using the LINE command, draw the object shown in the figure. (Figure Step 3A and 3B)

Step 4

Enter the UNITS command. In the Drawing Units dialogue box, set the Insertion Units to Millimeters. (Figure Step 4)

Step 5

Check your drawing with the key. The key name is the same as the drawing name. (Figure Step 5)

AUTHOR’S COMMENTS: If you have trouble doing this, redo Module 3.

Step 6

Your drawing should match the figure. (Figure Step 6)

AUTHOR’S COMMENTS: Step 5 will insert a magenta colored overlay key on your drawing. If you see double objects or places where your objects and the magenta objects do not match, your drawing is inaccurate. If you only see one object, even though it may share the colors magenta and red, your drawing is accurate.

AUTHOR’S COMMENTS: If you have trouble completing this drawing the first try, do not be concerned. Start it over again, from scratch, until you can complete it. The more practice you get drawing, the easier it will get. When you get to Module 8, you will be taught how to fix a drawing so you do not have to start over. Step 7 Save and close the drawing.

AUTHOR’S CONSTRUCTION HINTS: Do your best to complete the lab exercise drawing without using the following hint. If you get stuck and can not complete it on your own, use the following hint to help you.

Hint 1

See Figure Hint 1.

Lab Exercise 4-3

Time allowed: 30 minutes.

Drawing Name Template Units AutoCAD 2D Lab 04-3 2D English Inches

Step 1

Start a new drawing using the template shown above.

Step 2

Save and name the drawing: AutoCAD 2D Lab 04-3 in the folder: CAD Courses/AutoCAD 2D/Lab Exercises.

Step 3

Using the LINE command, draw the object shown in the figure. (Figure Step 3A and 3B)

Step 4

Enter the UNITS command. In the Drawing Units dialogue box, set the Insertion Units to Inches.

Step 5

Check your drawing with the key.

Step 6

Save and close the drawing.

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