Font no. -9 is the PHIGURE default font when the tscene function is called: all structures included in the list of structures of the scene use font -9. If this default value is not appropriate, just call the following function after calling tscene :
tset_text_font (SCENE_ID, 0, FONT)
where SCENID is the identifier of the scene and FONT is the number of the desired font.
If a particular structure must use another font than the scene default font, just call the following function after creating the structure:
tset_text_font (STRID, -1, FONT)
where STRID is the identifier of the created structure and FONT the number of the desired font.
See also GPHIGS USER GUIDE for a description of GPHIGS fonts.
G5G - PHIGURE C Reference Manual V6.0