AutoCAD Object characteristics

Introduction to 8.9.1 Object features

In AutoCAD, object characteristics (properties) is a broad concept, including color, layer, line style and other general features, but also includes a variety of geometric information, but also related to specific objects of additional information, such as the content of text, style and so on.

In the previous chapters we have learned to use various editing, modification, and query commands to access the attributes of an object, but these commands generally involve only one or several attributes of an object. If the user wants to access the full attributes of a particular object, it is available through the Properties window, which is the primary means of querying and modifying the object's attributes.

The method that pops up the Properties window is:

Tool bar: "Standard (Standard)" →

Menu: "Tools" → "Properties"

Command Prompt Line: properties (or alias ch, MO, props, Ddchprop, ddmodify)

8.9.2 Features window detailed

The Properties window is relatively independent of the AutoCAD drawing window, and you can enter commands in AutoCAD, use menus, dialog boxes, and so on when you open the Properties window. Therefore, you can always open the Properties window while working in AutoCAD. When a user selects one or more objects, the Properties window displays the attributes of the selected object.

First, take an example of the basic interface of the Properties window with no objects selected, as shown in Figure 8-3. The functions of each component in this window are as follows:

(1) Title bar: Display window and current graphic name. You can use the mouse to drag the title bar to change the window position, double-click the title bar to toggle the window between the fixed and floating states, or click the button to close (hide) the Attributes window.

(2) List of selected objects: Category Displays the selected object, and numbers indicate the number of objects of the same class, such as circle, which indicates that two circles are included in the selected object.

(3) Quick Select Object button: Click the button to eject the quick Select (Fast selection) dialog box

(4) Select Object button: Click the button to enter the selection state, when you can select a specific object in the drawing window.

(5) "pickadd" Variable switch button: Click the button to make the button pattern switch between and, the button pattern indicates that the system variable Pickadd value is set to 1; the button pattern indicates that the system variable Pickadd value is set to 0.

(6) Features tab: Divided into alphabetic (by letter) and categorized (by category) Two, the content is exactly the same, the difference is in the order of the entries.

(7) Attribute entry: Displays and sets various attributes for a particular object. Depending on the selected object, the content and quantity of the attribute entry are also different. Figure 8-3 shows an attribute entry when no object is selected, and its specific items and descriptions are shown in table 8-7.

(8) Description bar: Displays a description of the selected attribute entry.

Table 8-7 Description of attribute entries

Entry	Description
General (Basic)
Color (colors)	Specify the current color
Layer (layer)	Specify the current layer
Linetype (line style)	Specifies the current line style
Linetype Scale (linear ratio)	Specify current line style proportions
LineWeight (line width)	Specifies the current line width
Thickness (thickness)	Specify current thickness
Plot style (print style)
Plot style (print style)	Specify the current print style
Plot style table (print style sheet)	Specify the current print style sheet
Plot Style Table attached to (print table attached to)	Specifies the space that the current print style sheet is attached to
Plot table type (print form types)	Specifies the currently valid print style sheet type
View (views)
Center x (Central point x coordinates)	Specifies the x-coordinate of the current viewport center point, read-only
Center y (Central Point y-coordinate)	Specifies the y-coordinate of the current viewport's center point, read-only
Center Z (Central point z-coordinate)	Specifies the z-coordinate of the current viewport's center point, read-only
Height (altitude)	Specifies the height of the current viewport, read-only
Width (breadth)	Specifies the width of the current viewport, read-only
Misc (Other)

Table 8-7 Description of attribute entries

Entry	Description
UCS icon on (open UCS icons)	Specifies the open or closed state of the UCS icon
UCS Icon at Origin (Show UCS at Origin)	Specify whether to display UCS at the origin
UCS per viewport (Each viewport shows UCS)	Specifies whether UCS is saved with the viewport
UCS name (UCS name)	Specify UCS Name

The concept of plot style (print style) in a table is shown in chapter 17th.

If you select an object in the drawing area, the Properties window displays the current settings for all attributes of this object, and the user can modify any modifiable attributes. Depending on the type of object selected, the feature entries are also changed, as the user can refer to the relevant chapters. Here we'll just describe some common features and common features of objects, as shown in table 8-8.

Table 8-8 General features and public attribute entry descriptions

Entry	Description
Color (colors)	Specify the color of the object
Layer (layer)	Specifies the layer on which the object is located
Linetype (line style)	Specifies the line style of an object
Linetype Scale (linear ratio)	Specifies the linear scaling factor for an object
Plot style (print style)	Specify a print style
LineWeight (line width)	Specifies the line width of the object
Hyperlink (HYPERLINK)	Attach a hyperlink to a drawing object
Thickness (thickness)	Specify the thickness of the object

The concept of "Hyperlink (HYPERLINK)" In the table is shown in chapter 25th.

Explains that the Properties command can be used transparently.

8.10 Summary

This chapter mainly introduces the use of various query commands in AutoCAD to obtain the corresponding information, such as point coordinates, distance, area and so on. Users can also obtain detailed database information for a graphic object through a list command, and you can use the Object Attributes window to view and set data for each aspect of the specified object.

For the entire graphics file, users can use the status command or system variables to view and modify their settings and status.