Introduction to Multilines

Transcription

1 Introduction to Multilines Engineering Design Technology Sacramento City College Introduction to Multilines 1

2 Drawing Multilines A multiline consists of between 1 and 16 parallel lines that act as one line. The lines in the set of multilines are called elements. Introduction to Multilines 2

3 Drawing Multilines Multilines are commonly used for drawing Roads Walls of buildings for architectural plans. Introduction to Multilines 3

4 Drawing Multilines The MLINE command is accessed by: Picking the Multiline button from the Draw toolbar OR Picking Multiline in the Draw pull-down menu OR Typing ML or MLINE at the Command: prompt. Introduction to Multilines 4

5 Drawing Multilines Three commands relate to multilines: MLINE. (ML) MLSTYLE. MLEDIT. Introduction to Multilines 5

6 Drawing Multilines The MLSTYLE command Allows you to create multilines. Introduction to Multilines 6

7 Drawing Multilines The default multi-line style has: Two elements (lines). Continuous line type. Is called STANDARD. Introduction to Multilines 7

8 Multiline Justification Justification determines how the resulting lines are offset. Introduction to Multilines 8

9 Multiline Justification Justification Can be specified only once during a single MLINE command sequence and Is based on a counterclockwise rotation direction. Introduction to Multilines 9

10 Multiline Justification The justification options are Top Zero Bottom TOP is the default The current value remains in effect until changed. Introduction to Multilines 10

11 Top Justification Introduction to Multilines 11

12 Zero Justification Introduction to Multilines 12

13 Bottom Justification Introduction to Multilines 13

14 Multiline Justification To change the justification Enter J at the first prompt Enter the first letter of the desired justification Top Zero Bottom Introduction to Multilines 14

15 Multiline Justification The justification setting is stored in the AutoCAD CMLJUST system variable. Introduction to Multilines 15

16 Adjusting the Multiline Scale The Scale option controls the multiplier for the offset values specified in the MLSTYLE command. The multiplier is stored in the CMLSCALE system variable. Introduction to Multilines 16

17 Adjusting the Multiline Scale When the scale is 1, the distance between multiline elements is equal to 1 times the offset distance. If the offset distance is 0.5, the distance between multiline elements is 0.5 when the multiline scale is 1. If the multiline scale is 2, the distance between multiline elements is 1 (0.5 x 2). Introduction to Multilines 17

18 Adjusting the Multiline Scale For zero justification, The multiline elements are offset 0.5 units on either side of the definition points picked. Example: If the multiline scale is 2 Top and Bottom justification = 2 units offset Zero justification = 1 unit and -1 unit offset. Introduction to Multilines 18

19 Setting Your Own Multiline Style ML Command Style option Allows you to specify the current multiline style. The style must be saved before it can be accessed. Introduction to Multilines 19

20 Setting Your Own Multiline Style Using saved Multiline styles Type: ML Type: ST - to access the style option, Type the known multiline style name. A? lists all of the names of the multiline styles. Typing a name of a multiline style that does not exist, the Load multiline style from file dialog box is displayed Introduction to Multilines 20

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22 Setting Your Own Multiline Style Multilines are stored in the acad.mln file library. Introduction to Multilines 22

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25 Setting Your Own Multiline Style You can load the multiline style from another file (not acad.lin). Custom multilines can be purchased for AutoCAD. Introduction to Multilines 25

26 Defining Multilines Introduction to Multilines 26

27 Multiline Styles Use the MLSTYLE command to define multilines. Introduction to Multilines 27

28 Multiline Styles The MLSTYLE command can be accessed by: Picking the Multiline Style entry in the Format pull-down menu OR Typing MLSTYLE at the Command: prompt. Introduction to Multilines 28

29 Multiline Styles The Multiline options are: Current: Name: Description: Load... Button: Save... button. Add button. Rename button. Introduction to Multilines 29

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31 Multiline Styles Current: Text box. The Current: text box makes the specified multiline style current. Specifying a different style changes the setting of the CMLSTYLE system variable. Until you create a multiline style, the only style available is STANDARD. Introduction to Multilines 31

32 Multiline Styles Name:Text box. This text box is used to enter the name for a new style. Description: Text box. An optional description of your multiline style may be entered in this text box. Introduction to Multilines 32

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34 Multiline Styles Load... button. This button allows you to load a multiline style from an external multiline definition file. Save... button. The Save... button is used to save a style to a file. Introduction to Multilines 34

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36 Multiline Styles Add button. Pick the Add button after entering a multiline style name in the Name: text box. This adds the multiline style name to the list of defined styles. Rename button. Pick this button to rename a multiline style. Introduction to Multilines 36

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38 Creating A Multiline Introduction to Multilines 38

39 Element Properties Dialog Box Create a new multiline style by 1. MLStyle 2. Type name of new multiline NewExample 3. Click ADD Introduction to Multilines 39

40 Multiline Element Properties Introduction to Multilines 40

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42 Element Properties Dialog Box Elements Properties Dialog Box contains: Elements: area. Add button. Delete button. Offset text box. Color... button. Linetype... button. Introduction to Multilines 42

43 Element Properties Dialog Box Elements: area. Displays the current: Offset. Color Linetype settings for each multiline element. Picking one of the elements highlights the items for modification. Introduction to Multilines 43

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45 Element Properties Dialog Box Add button. Add a new element to the multiline definition. Delete button. Deletes a highlighted item in the Elements: area. Introduction to Multilines 45

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48 Element Properties Dialog Box Offset text box. Enter either a positive or negative offset value for a highlighted element. Introduction to Multilines 48

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50 Element Properties Dialog Box Color... button. Accesses the Select Color dialog box. Pick the color you wish to assign to the highlighted element. After picking OK, the new color is displayed in the image tile next to the Color... button. Introduction to Multilines 50

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53 Element Properties Dialog Box Linetype... button. Pick the desired linetype from the Loaded Linetypes list. Linetypes must be loaded before they can be used. Introduction to Multilines 53

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61 Multiline Properties Options Introduction to Multilines 61

62 Multiline Properties Dialog Box The Multiline Properties dialog box offers additional options for customizing multiline styles. Access by: Picking the Multiline Properties... button in the Multiline Styles dialog box. See Figure Introduction to Multilines 62

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65 Multiline Properties Dialog Box You can add the following to multi-line elements Caps. Segment joints. Background color. Introduction to Multilines 65

66 Joints Multiline Properties Dialog Box Are lines that connect the vertices of adjacent multiline elements. Joints are also called miters. Display joints check box. This check box turns the display of joints on and off. Introduction to Multilines 66

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69 Caps Multiline Properties Dialog Box Are lines that Connect the vertices of the beginning or ending points of the multiline elements. Caps area. Controls the placement of caps on multilines. Introduction to Multilines 69

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74 Multiline Properties Dialog Box Caps can be set at the Start points Endpoints Both. Introduction to Multilines 74

75 Multiline Properties Dialog Box Arcs can also be specified. Arcs can be set to connect the Ends of the outermost elements only Pairs of interior elements Both the outer and interior elements. The arcs are drawn tangent to the elements they connect. Specifying outermost arcs to be drawn requires at least two multiline elements. Introduction to Multilines 75

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83 Multiline Properties Dialog Box Angle: Text Box Allows you to change the angle of the caps relative to the direction of the multiline elements. Introduction to Multilines 83

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86 Multiline Properties Dialog Box Fill area. If the check box labeled On is activated, the multiline is filled with a solid fill pattern in the color specified. Pick this check box to activate the Color... button. You can leave the color set to BYLAYER or change it by picking the Color... button. Introduction to Multilines 86

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91 Multiline Styles Introduction to Multilines 91

92 Multiline Styles MLSTYLE command Displays the Multiline Styles dialog box. Use this box to define, edit, and save multiline styles. Styles can be saved to an external file so they can be used in other drawings. Introduction to Multilines 92

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94 Editing Multilines Introduction to Multilines 94

95 Editing Multilines The MLEDIT command permits limited editing operations for multiline objects. Introduction to Multilines 95

96 Editing Multilines Access this command by Picking Multiline... from the Modify pull-down menu OR Entering MLEDIT at the Command: prompt OR Picking the Edit Multiline button in the Modify toolbar. Introduction to Multilines 96

97 Editing Multilines The Multiline Edit Tools dialog box is displayed. Introduction to Multilines 97

98 Editing Multilines The image buttons give you an example of what to expect when using each editing option. Introduction to Multilines 98

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100 Editing Intersections Pick a button to create the type of intersection shown. The name of the MLEDIT option is displayed in the lower left comer of the dialog box when you pick an image button. Introduction to Multilines 100

101 Editing Intersections Closed Cross. The first multiline selected is called the background. It remains unchanged. The second multiline selected is called the foreground. It remains unchanged. Introduction to Multilines 101

102 Editing Intersections Note that the trimming is apparent, not actual. (! ) This means that the line visibility of the background multiline is changed, but it is still one multiline. Introduction to Multilines 102

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104 Editing Intersections U to undo the intersection you have just made. Introduction to Multilines 104

105 Editing Intersections Cross editing options: Closed Cross. Open Cross. Merged Cross. Introduction to Multilines 105

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107 Editing Tees Other Tee editing options: Closed Tee Open Tee. Merged Tee. Introduction to Multilines 107

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109 Editing Intersections Other options: Corner Joint. Add Vertex. Delete Vertex. Cut Single. Cut All. Weld All. Introduction to Multilines 109

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111 Editing Intersections Corner Joint. Allows you to create a corner joint between two multilines. The first multiline is trimmed or extended to its intersection with the second multiline. Introduction to Multilines 111

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113 Editing Intersections Add Vertex. Adds a vertex to an existing multiline at the location you pick. Introduction to Multilines 113

114 Editing Intersections Add Vertex The command sequence differs slightly from the sequences used with the other MLEDIT options. After you select the Add Vertex option and pick OK, you are prompted with the following: Select mline: (pick a location on the multilinefor the new vertex) Select mline or [Undo]: j Command: Introduction to Multilines 114

115 Editing Intersections Delete Vertex. The Delete Vertex option allows you to remove a vertex from an existing multiline. The vertex closest to the location you pick is deleted. Introduction to Multilines 115

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