★What's the difference between CTB/STB plot style in ZWCAD

Issue:

What is CTB/STB plot style in ZWCAD, and what's the difference between them?

Solution:

1. Plot styles can be divided into color-dependent plot style tables(*.ctb) mode and named plot style tables mode(*.stb) mode.
   1. CTB: Color-dependent plot style tables mode.
      Color-dependent plot style tables use an object's color to determine plot characteristics such as lineweight. For example, every red object in a drawing is plotted the same way. While you can edit plot styles in a color-dependent plot style table, you cannot add or delete plot styles. There are 255 plot styles in a color-dependent plot style table, one for each color.
   2. STB: Named print style tables mode.
      Named plot style tables contain user-defined plot styles. When you use a named plot style table, objects that have the same color may be plotted differently, based on the plot style assigned to the object. A named plot style table can contain as many or as few plot styles as required. Named plot styles can be assigned to objects or layers, just like any other property.
2. Color-dependent plot style tables are saved as ".ctb" file extension.
   Named plot style tables are saved as ".stb" file extension.
   They are all stored in the printstyle folder in the user directory.
   
3. One drawing can only apply one type of plot style tables.
   Users can switch between the two types of plot style tables with the CONVERTPSTYLES command.