| 摘要 |
PURPOSE:To improve the efficiency of conversion from the coordinate system of a font to a modeling coordinate system. CONSTITUTION:A control part is provided with a font dependent type conversion matrix generation part 23, an attribute dependent type conversion matrix type generation part 24 other than the font dependent type, and a primitive dependent type conversion matrix generation part 25, which are applied to the conversion from the font coordinate system to the modeling coordinate system through a font dependent type conversion matrix, an attribute dependent type conversion matrix other than the font dependent type, and a primitive dependent type conversion matrix; when a font is switched, the font dependent type conversion matrix is only altered and a drawing process part generates a composition conversion matrix by using the font dependent type conversion matrix. Further, the control part specifies the attribute dependent type conversion matrix other than the font dependent type or the primitive dependent type conversion matrix, and the specified conversion matrix is used to generate the composition conversion matrix for the font switching. |
