CN103559271A - Method for generating bitmap font library with gray level - Google Patents
Method for generating bitmap font library with gray level Download PDFInfo
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- CN103559271A CN103559271A CN201310541513.9A CN201310541513A CN103559271A CN 103559271 A CN103559271 A CN 103559271A CN 201310541513 A CN201310541513 A CN 201310541513A CN 103559271 A CN103559271 A CN 103559271A
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Abstract
The invention provides a system for generating a bitmap font library with a gray level. The system comprises a bitmap font generating module, a font size adjusting module, a gray level adding module, a display module and a GDI (Graphic Device Interface), wherein the bitmap font generating module is used for creating bitmap fonts of specified sizes; the font size adjusting module is used for adjusting the bitmap fonts; the gray level adding module is used for obtaining a font bitmap of gray level 65 through a function CGO_GRAY8_BITMAP so as to obtain bitmap font information of the gray level. According to the system, the bitmap font library with the gray level is generated, so that remarkable saw teeth are avoided during zooming; moreover, the sizes of fonts are not limited.
Description
Technical field
The present invention relates to dot matrix word library generation technique field, relate in particular to a kind of dot-matrix library generating method with gray shade scale.
Background technology
Raster font advantage is that display speed is fast, unlike vector fonts, needs to calculate; Its maximum shortcoming is to amplify, once will find the sawtooth at word edge after amplifying.
Raster font is also bit-mapped font, and wherein each font represents with one group of two-dimensional pixel information.This word display mode for example, is generally adopted for computer system (dos operating system while not having graphic interface) not long ago.Due to the cause of bitmap, raster font is difficult to carry out convergent-divergent, and specific raster font can only clearly be presented under corresponding font size, otherwise word only amplified and distortion font by force, produces into the jagged edges of mosaic.But be also still used in now screen for the less Chinese character style of the size of font size 8-14px (the acquiescence font size that operating system adopts mostly now), show above, higher display effect can be provided; But this kind of raster font is main only as the part of " assisting " now, and when the font size of user's setting does not have bit image, font just can show in vector-valued image mode; And when printing, be printed on regardless of different kinds of font and also can use vector font to print.
Dot matrix word library is commonly used to as showing character library use, and the shortcoming of this class dot matrix word library Chinese character maximum is to amplify, once will find the sawtooth at word edge after amplifying.
What vector font library was preserved is the descriptor to each Chinese character, such as initial, the termination coordinate of a stroke, radius, radian etc.When showing, printing this class character library, to just can calculate result through a series of mathematical operation, but on the characters theory that this class character library is preserved, can ad infinitum be amplified, it is round and smooth that stroke profile still can keep, and the character library of using during printing is this type of character library.The character library that Windows is used is also above two classes, and under FONTS catalogue, if font expansion FON by name, expression this document is dot matrix word library, and expansion TTF by name represents vector font library.
The major defect of prior art scheme has: 1, generate dot matrix word library process in, only generated the dot matrix word library that single pixel represents, there is no the transition of gray shade scale, when Zoom display, have sawtooth clearly; 2, user can only use the character library of maximum No. 64 fonts of Software Create, restricted to font size size.
Summary of the invention
The shortcoming that the present invention has obvious sawtooth and can only generate the character library of No. 64 fonts for solving the above-mentioned existing dot matrix word library of mentioning when convergent-divergent, provides a kind of dot matrix word library generation system and method with gray shade scale.
Concrete, the invention provides a kind of dot matrix word library generation system with gray shade scale, it comprises raster font generation module, font size adjusting module, adds gray shade scale module and display module; The described dot matrix word library generation system with gray shade scale also comprises GDI (Graphics Device Interface);
Described raster font generation module is by the corresponding parameter of CreateFont function setup of described GDI interface, and big or small raster font is specified in establishment;
Described font size adjusting module obtains the information of raster font by the GetGlyphOutline of described GDI interface, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
Described interpolation gray shade scale module is obtained the information of described raster font by GDI interface GetGlyphOutline function, and by function CGO_GRAY8_BITMAP, obtains the glyph bitmap of 65 grades of grey, thereby obtains the raster font information containing gray shade scale;
Described display module is provided with self-defined form, can show described raster font, thereby generates the dot matrix word library with gray shade scale.
Preferably, the GB2312 code of described self-defined form simplified form of Chinese Character and the correspondence table of UNICODE code.
Preferably, described display module comprises LED screen.
Preferably, a kind of method that generates dot matrix word library according to described dot matrix word library generation system: it comprises the following steps:
The first step: raster font generation module is by the corresponding parameter of CreateFont function setup of described GDI interface, and big or small raster font is specified in establishment;
Second step: font size adjusting module obtains the information of raster font by the GetGlyphOutline of described GDI interface, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
The 3rd step: add gray shade scale module and obtain the information of described raster font by GDI interface GetGlyphOutline function, and by function CGO_GRAY8_BITMAP, obtain the glyph bitmap of 65 grades of grey, thereby obtain the raster font information containing gray shade scale;
The 4th step: display module, according to the self-defined form arranging, shows described raster font, thus the dot matrix word library with gray shade scale generated.
Beneficial effect of the present invention is: by generating the dot matrix word library with gray shade scale, there is no sawtooth clearly when Zoom display; And to the not restriction of the size of font size.
Accompanying drawing explanation
Fig. 1 is the structural representation of system of the present invention.
Embodiment
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
As shown in Figure 1, a kind of dot matrix word library generation system with gray shade scale, it comprises raster font generation module 1, font size adjusting module 2, adds gray shade scale module 3 and display module 4; Dot matrix word library generation system with gray shade scale also comprises GDI (Graphics Device Interface);
Raster font generation module 1 is by the corresponding parameter of CreateFont function setup of described GDI interface, and big or small raster font is specified in establishment;
Font size adjusting module 2 obtains the information of raster font by the GetGlyphOutline of described GDI interface, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
Add gray shade scale module 3 and obtain the information of described raster font by GDI interface GetGlyphOutline function, and by function CGO_GRAY8_BITMAP, obtain the glyph bitmap of 65 grades of grey, thereby obtain the raster font information containing gray shade scale;
Display module 4 is provided with self-defined form, can show described raster font, thereby generates the dot matrix word library with gray shade scale.
Self-defined form comprises the GB2312 code of simplified form of Chinese Character and the correspondence table of UNICODE code.
Preferably, display module 4 comprises LED screen.
Embodiment:
According to described dot matrix word library generation system, generate the method for dot matrix word library: it comprises the following steps:
The first step: raster font generation module 1 is crossed the corresponding parameter of CreateFont function setup of described GDI interface, and create the big or small raster font of appointment;
Second step: the GetGlyphOutline that font size adjusting module 2 is crossed described GDI interface obtains the information of raster font, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
The 3rd step: interpolation gray shade scale module 3 is crossed GDI interface GetGlyphOutline function and obtained the information of described raster font, and obtains the glyph bitmap of 65 grades of grey by function CGO_GRAY8_BITMAP, thereby obtains the raster font information containing gray shade scale;
The 4th step: display module 4, according to the self-defined form arranging, shows described raster font, thus the dot matrix word library with gray shade scale generated.
Beneficial effect of the present invention is: by generating the dot matrix word library with gray shade scale, there is no sawtooth clearly when Zoom display; And to the not restriction of the size of font size.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. with a dot matrix word library generation system for gray shade scale, it is characterized in that: it comprises raster font generation module, font size adjusting module, adds gray shade scale module and display module; The described dot matrix word library generation system with gray shade scale also comprises GDI interface;
Described raster font generation module is by the corresponding parameter of CreateFont function setup of described GDI interface, and big or small raster font is specified in establishment;
Described font size adjusting module obtains the information of raster font by the GetGlyphOutline of described GDI interface, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
Described interpolation gray shade scale module is obtained the information of described raster font by the GetGlyphOutline function of GDI interface, and by function CGO_GRAY8_BITMAP, obtains the glyph bitmap of 65 grades of grey, thereby obtains the raster font information containing gray shade scale;
Described display module is provided with self-defined form, can show described raster font, thereby generates the dot matrix word library with gray shade scale.
2. the dot matrix word library generation system with gray shade scale according to claim 1, is characterized in that: the GB2312 code of described self-defined form simplified form of Chinese Character and the correspondence table of UNICODE code.
3. the dot matrix word library generation system with gray shade scale according to claim 2, is characterized in that: described display module comprises LED screen.
4. according to the dot matrix word library generation system with gray shade scale described in the aforementioned arbitrary claim of claim, generate the method for dot matrix word library: it is characterized in that: it comprises the following steps:
The first step: raster font generation module is by the corresponding parameter of CreateFont function setup of described GDI interface, and big or small raster font is specified in establishment;
Second step: font size adjusting module obtains the information of raster font by the GetGlyphOutline of described GDI interface, and by GetTextMetrics function, obtaining the dimension information of corresponding font, described font size adjusting module regulates described raster font by the dimension information obtaining;
The 3rd step: add gray shade scale module and obtain the information of described raster font by GDI interface GetGlyphOutline function, and by function CGO_GRAY8_BITMAP, obtain the glyph bitmap of 65 grades of grey, thereby obtain the raster font information containing gray shade scale;
The 4th step: display module, according to the self-defined form arranging, shows described raster font, thus the dot matrix word library with gray shade scale generated.
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| CN201310541513.9A CN103559271A (en) | 2013-11-06 | 2013-11-06 | Method for generating bitmap font library with gray level |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050155A (en) * | 2014-07-01 | 2014-09-17 | 西安诺瓦电子科技有限公司 | Text editing device and method |
| CN107393494A (en) * | 2017-08-17 | 2017-11-24 | 福建星网锐捷通讯股份有限公司 | A kind of font dot matrix display methods and storage device based on LCDs |
| CN112256228A (en) * | 2020-11-17 | 2021-01-22 | 深圳高通半导体有限公司 | Optimization method for dot matrix character display |
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| US6339426B1 (en) * | 1999-04-29 | 2002-01-15 | Microsoft Corporation | Methods, apparatus and data structures for overscaling or oversampling character feature information in a system for rendering text on horizontally striped displays |
| CN101008939A (en) * | 2007-01-25 | 2007-08-01 | 深圳创维－Rgb电子有限公司 | Implementation method of dot matrix word library of embedded system |
| CN102760299A (en) * | 2012-06-25 | 2012-10-31 | 深圳市邦旭科技有限公司 | Method for rapidly amplifying black-white dot matrix font into integral multiple gray level dot matrix font |
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| US6339426B1 (en) * | 1999-04-29 | 2002-01-15 | Microsoft Corporation | Methods, apparatus and data structures for overscaling or oversampling character feature information in a system for rendering text on horizontally striped displays |
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| CN102760299A (en) * | 2012-06-25 | 2012-10-31 | 深圳市邦旭科技有限公司 | Method for rapidly amplifying black-white dot matrix font into integral multiple gray level dot matrix font |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104050155A (en) * | 2014-07-01 | 2014-09-17 | 西安诺瓦电子科技有限公司 | Text editing device and method |
| CN107393494A (en) * | 2017-08-17 | 2017-11-24 | 福建星网锐捷通讯股份有限公司 | A kind of font dot matrix display methods and storage device based on LCDs |
| CN112256228A (en) * | 2020-11-17 | 2021-01-22 | 深圳高通半导体有限公司 | Optimization method for dot matrix character display |
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Application publication date: 20140205 |