A symbol does not update even though it has been modified and resaved.
The symbol has been saved using the SYMBOL Save option, which saves the symbol on disk. If a symbol by the same name is already loaded in the drawing, the program will by default use its symbol definition. You can override this by entering the file extension in the symbol name as you insert the symbol. To replace an existing symbol definition by a symbol definition on disk, enter the SYMBOL Load command.
When I try to insert a symbol, the program displays an error "The symbol refers to itself".
Symbols, when saved on disk, are regular drawing files. If a drawing file contains a symbol with the same name as the drawing file name, trying to insert the drawing file as a symbol will result in the aforementioned error. The easiest way to solve the problem is to open the symbol drawing file, explode the symbol in question and remove the symbol reference from the drawing with the PURGE command.
The drawing changes when I insert it to another drawing with the INSERT command.
The two drawings both have symbols that look different, but share the same name. The symbols in the 'host' drawing (the drawing into which you are inserting the other drawing) will override the symbols in the 'client' drawing (the drawing you are inserting to the other drawing). In other words, the symbols in the 'client' drawing will be replaced by the similarly named symbol in the ’host’ drawing. The only solution is to either explode or rename the symbols in the 'client' drawing.
I turn a layer on and redraw, but the objects on the layer are still not visible.
The layer in question was off and locked when you last saved or regenerated the drawing. Therefore you must regenerate the drawing using the REGEN command, after you have unlocked and turned the layer on.
When I open a drawing, the program displays an error message "Invalid layer index".
The drawing contains objects referring to a layer, that does not exist. Use FIX command to recover.
The drawing file is exceedingly large, even though I have erased almost all objects.
Even if you erase symbols, their definitions are still stored in the drawing. Use the PURGE command to remove unused symbol definitions.
The screen is completely empty when I zoom to limits.
The drawing probably originally comes from another CAD program, and the limits have not been defined. Use the ZOOM Extents command to bring the drawing into view and set the limits with the LIMITS command.
ZOOM Extents command results in the error message "Drawing extents undefined".
The drawing probably originally comes from another CAD program and the drawing extents coordinates are set incorrectly. The error message is normal, if there are no objects in the drawing. If there are objects in the drawing, draw a line anywhere in the drawing, erase it and zoom to the drawing extents (ZOOM Extents). This will set the drawing extents (EXTENTSMAX, EXTENTSMIN) and the drawing will work normally.
When I switch to print mode the display is empty.
You haven’t defined any layout viewports. See more information: Workmodes.
DWG/DXF
DWG/DXF drawing does not open.
If opening a DWG/DXF drawing halts and an error is reoprted, try to recover the drawing.
1. Close all open documents.
2. Select File Recover.
If the Recover function is unable to open the drawing, contact Technical Support.
When I open a DXF or a DWG drawing file, all linetypes appear continuous.
1. Check DIMSCALE system variable. If the drawing has been drawn in, e.g. 1:100 scale and the DIMSCALE is 1, different linetypes are scaled so small, that they all appear continuous. Change the DIMSCALE system variable to correspond the drawing scale and regenerate the drawing with the REGEN command.
2. Check the LTSCALE system variable. This variable sets a linetype scale factor, with which all linetype definitions will be multiplied. Set the factor to a suitable value and regenerate the drawing.
Text objects are much wider when I export the drawing into another CAD program.
There are no standard fonts used in different CAD programs. Try to find a narrower font in the other program and edit the conversion file (.cnv) to include a line, that defines the corresponding font to the program fonts. When you use this conversion file to convert the drawing to DXF/DWG, the program fonts will be automatically converted to the right font.
DXF/DWG drawing opens, but there are no objects in it. Zooming to limits does not help.
As the drawing was saved, it was zoomed to a place where there are no objects. Also the limits have not been set properly.
Enter ZOOM Extents . The program will then display all objects.
The colors don’t correspond the original colors of the drawing.
By default, program has a color scheme, in which color number 2, for example, is red. Other CAD systems may have different colors. The color information in the drawing files, however, is only a color number, not the actual color.