Solution or Workaround
When working with symbol sets, what do the messages "Line symbol table full", "Shade symbol table full" or "Marker symbol table full" mean?
Answer:
ARCPLOT maintains symbol (marker, line, shade, or text) tables with a total of 999 cells. Each cell is occupied by a symbol layer. Thus, it is possible to have 999 single-layer symbols, or one symbol with 999 layers, or any combination in between.
This warning occurs when the table is full. For example, MY.LIN has symbols 1 through 333. Each symbol has three layers for a total 999 layers. If a four layer symbol is put into symbol 1 the "Line symbol table full" warning will occur.
It is possible to clear specific symbol table locations or all locations with any of these commands: MARKERDELETE, LINEDELETE, SHADEDELETE and TEXTDELETE.