Autodesk 00128-051462-9310 User Guide - Page 601

Layer Key Styles Layer Key Styles are the heart of an automated layer standard. There are several pre-defined Layer Key Styles provided with AutoCAD Architecture that are based on existing widely accepted industry standards. You can also define your own Layer Key Style. Layer Key Style Naming Conventions: Example Layer Key Style Names: Layer Key Style Description Example Name Layer Key Style based on the British BS1192 standard. BS1192 Layer Key Style based on the AIA Layer Guidelines version 3, with AIA v3 provisions for deviation from Tri-Services plotting guidelines (using named plot styles). Layer Key Style created by "Company X" for use with their internal Company X Health Care layer standard, which is specifically used on medical projects. Best Practices for Layer Key Styles: ■ Base your Layer Key Style on a structured AutoCAD Architecture Layer Standard, which defines the actual layer naming format for your layers. Layer keys that are not based on a Layer Standard cannot take advantage of layer key overrides. ■ Since Layer Key Styles define the color, line weight, line type and plot style for each layer they define, they should work in conjunction with your display system. Before defining your own Layer Key Style, you should have a display system in effect that has been tested and you should be very familiar with it. ■ Remember that several existing Layer Key Styles are already provided with AutoCAD Architecture. You may want to start with these instead of creating a new one from scratch, modifying and adding layer keys as necessary to suit your needs. ■ Don't forget to specify, as part of your drawing settings the Layer Standard and Layer Key Style to automatically load in any new drawing. Additionally you should specify that the Layer Key Style be reloaded in any existing drawings if the "master" Layer Key Style in the library drawing has been edited recently. (Refer to "Template Drawings" under the "Content Resources" section of this chapter). Mask Block Definitions Mask blocks are symbol-based style definitions that consist of a shape definition to serve as a masking object along with optional additional graphics. NOTE Mask blocks only affect AEC Objects and cannot mask generic AutoCAD objects such as lines, arcs, circles, etc. Mask Block Definition Naming Conventions: Because Mask Block Definitions are symbolic objects, naming conventions are similar to those used for standard block definitions. Since mask block definitions are best stored as AEC Content, you may also want the name to indicate the category of AEC Content in which the mask block definition belongs: Descriptive field>__... Example Mask Block Definition Names: Mask Block Definition Description Example Name 2'x2' fluorescent lighting fixture for use in an imperial Architectural I_Elec_Lighting_Fluor_2x2 project. Custom conference table created by/for "Company X" for use in imperial projects. Company X_I_Furn_Table_Conf Multi-Purpose Objects | 561