CN110222324B - Automatic layout device based on character paragraph structure and word size change rate - Google Patents
Automatic layout device based on character paragraph structure and word size change rate Download PDFInfo
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Abstract
The invention relates to the technical field of planar design, in particular to an automatic layout device based on a character paragraph structure and a character size change rate.
Description
Technical Field
The invention relates to the technical field of plane design, in particular to an automatic layout device based on a character paragraph structure and a character size change rate.
Background
When designing a plane, it is common practice for designers to use a background image as a background, then find out the foreground regions of the background, and then place logos, decorations, or characters in these foreground regions.
We refer to these areas for placing text collectively as "blocks". For example: the area marked by a red dotted line frame in the poster is a block, and the four blocks are totally arranged in the poster. These "tiles" require a layout that allows for aesthetically pleasing placement of text into these areas.
At present, a large number of algorithms exist for identifying background and foreground regions of a picture, and a block can be identified through the algorithms. However, there is no good algorithm to solve the problem of automatic layout of the content in "blocks". If this problem can be solved well, then automatic generation of this type of flat design can be accomplished along this line of thought.
The device provides an automatic layout device based on the structure of the text paragraph and the change rate of the font size, can realize the automatic layout of the text content in the block, and lays a certain foundation for intelligent automatic plane design.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides an automatic layout device based on a text paragraph structure and a font size change rate, through which a user performs priority division and confirmation of a block size on a text to be laid out, so as to generate a plurality of layout trees, and a grid in the layout trees is automatically changed according to the change rate of the text, so that a designer does not need to repeatedly adjust the grid size, thereby greatly reducing the repeated work of the designer, avoiding the trouble of repeatedly adjusting the size and parameters, and improving the drawing efficiency.
In order to realize the technical problem, the solution scheme adopted by the invention is as follows: an automatic layout device based on the structure of a character paragraph and the change rate of the character size is characterized by comprising a layout generator; the automatic layout method of the layout generator is as follows:
step one, a user self-defines and inputs contents to a layout generator, and sets the priority of the contents according to the design intention of the contents, wherein the priority setting rule is that starting from P0, the smaller the number is, the higher the priority is, the priority represents the relative size of the character size in the grid, and the contents with high priority can use the character size larger than the contents with low priority.
Generating a layout tree for the content according to the priority setting by a layout generator, wherein the tree node grids of the layout tree are generated correspondingly to the priority level; the user can rotate and adjust the generated nodes of the layout tree to obtain different layouts.
After the layout tree is generated in the step (three), obtaining a specific grid size according to an algorithm flow of the grid, wherein the calculation method of the grid size comprises the following flows:
the process (1) sets an initial word size range S for P0 a ~S b 。
Procedure (2) set the font size value S of P0 to S b ；
The flow (3) calculates the word size values of different priorities according to the word size value and the word size change rate function of the P0;
in the process (4), the text contents placed in each grid are used as an independent large section according to the process (3); calculating word sizes with different priorities, putting the words together, trying to put the words into a block, and performing a loop calculation according to the putting result, wherein the loop is as follows:
1. all the text can be put in and the area of the remaining space is less than or equal to k% of the total area of the "block", then we jump to flow (5).
2. Can put all characters in, and the area of the residual space is larger than k% of the total area of the block, and modify S a Has a value of (S) b +S a ) Rounding down and then jumping to the flow (3);
3. all characters cannot be put in, and the value of Sb is modified to be (S) b +S a ) Rounding up the/2 and then jumping to the flow (3);
4. the word size which meets the conditions cannot be found, and the word size which has the area ratio of the residual space closest to k% after all the characters are put in is selected as a calculation result;
and (5) calculating the space occupation ratio of the characters corresponding to each grid in the block according to the typesetting result in the flow (4).
And obtaining the font size corresponding to each priority and the proportion of each grid in the block according to the flow, and finally obtaining the grid size.
Further, the word size change rate functional relation comprises:
power function: f (x) = mx a Wherein m and a are empirical coefficients;
exponential function: f (x) = lb x Where l and b are empirical coefficients;
a logarithmic function: f (x) = clog (x), where c is an empirical coefficient.
By adopting the technical scheme, the invention has the beneficial effects that: according to the automatic layout device based on the character paragraph structure and the word size change rate, a client can determine the size of a block, then priority distribution can be carried out on the character paragraphs according to the requirements of the client, the layout form can be selected according to the preference of the client after the priority distribution is finished, grids in the layout tree can be automatically changed at the moment, and the problem that the work efficiency of a designer is reduced due to the fact that complicated operation is required to be carried out when the character layout is changed at present is solved.
Drawings
FIG. 1 is a flow chart of the grid size algorithm of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Example 1
An automatic layout device based on the structure of a character paragraph and the change rate of the character size is characterized by comprising a layout generator; the automatic layout method of the layout generator is as follows:
the user self-defines and inputs contents to a layout generator, and sets the priority of the contents according to the design intention of the contents, wherein the priority setting rule is that starting from P0, the smaller the number is, the higher the representative priority is, the priority represents the relative size of the character size of the characters in the grid, and the contents with high priority can use the character size larger than the contents with low priority.
Generating a layout tree for the content according to the priority setting by a layout generator, wherein the tree node grids of the layout tree are generated correspondingly to the priority level; the user can rotate and adjust the generated nodes of the layout tree to obtain different layouts.
After the layout tree is generated in the step (three), obtaining a specific grid size according to an algorithm flow of the grid, wherein the calculation method of the grid size comprises the following flows:
the process (1) sets an initial character size range S for P0 a ~S b . Generally we will be S a Is taken as 1,S b Is 200.S a The value of (a) can also be estimated according to the size of the "block";
procedure (2) set the font size value S of P0 to S b ；
And (3) calculating the word size values of different priorities according to the word size value and the word size change rate function of the P0. The font size change rate function can use a power function, an exponential function and a logarithmic function predefined by a system, and can also be defined by a client.
In the process (4), the text contents placed in each grid are used as an independent large section according to the process (3); calculating word sizes with different priorities, putting the words together, trying to put the words into a block, and performing a circular calculation according to the putting result, wherein the circular calculation is as follows:
1. all the text can be put in and the area of the remaining space is less than or equal to k% of the total area of the "block", then we jump to flow (5). Where k is an empirical coefficient, typically 5.
2. Can put all characters in, and the area of the residual space is larger than k% of the total area of the block, and modify S a Has a value of (S) b +S a ) Rounding down and then jumping to the flow (3);
3. can not put all characters in, modify S b Has a value of (S) b +S a ) Rounding up the/2 and then jumping to the flow (3);
4. the word size which meets the conditions cannot be found, and the word size which has the area ratio of the residual space closest to k% after all the characters are put in is selected as a calculation result;
and (5) calculating the space occupation ratio of the characters corresponding to each grid in the block according to the typesetting result in the flow (4).
And obtaining the font size corresponding to each priority and the proportion of each grid in the block according to the flow, and finally obtaining the grid size.
Finally, the word size corresponding to each priority and the proportion of each grid in the block are obtained.
Further, the word size change rate functional relation includes:
a power function: f (x) = mx a Wherein m and a are empirical coefficients;
exponential function: f (x) = lb x Wherein l and b are empirical coefficients;
logarithmic function: f (x) = clog (x), where c is an empirical coefficient.
The above description is only an embodiment utilizing the technical content of the present disclosure, and any modification and variation made by those skilled in the art can be covered by the claims of the present disclosure, and not limited to the embodiments disclosed.
Claims (2)
1. An automatic layout device based on the structure of a text paragraph and the change rate of a font size is characterized by comprising a layout generator; the automatic layout method of the layout generator is as follows:
step one, a user self-defines and inputs contents to a layout generator, and sets the priority of the contents according to the design intention of the contents, wherein the priority setting rule is that starting from P0, the smaller the number is, the higher the representative priority is, the priority represents the relative size of the character size in the grid, and the content with high priority can use the character size larger than the content with low priority;
generating a layout tree for the content according to the priority setting by a layout generator, wherein the tree node grids of the layout tree are generated correspondingly to the priority level; the user can rotate and adjust the generated tree nodes of the layout tree to obtain different layouts;
after the layout tree is generated in the step (three), obtaining a specific grid size according to an algorithm flow of the grid, wherein the calculation method of the grid size comprises the following flows:
the process (1) sets an initial character size range S for P0 a ~S b ；
Procedure (2) set the font size value S of P0 to S b ；
Calculating the word size values of different priorities according to the word size value of P0 and the word size change rate function in the process (3);
the process (4) takes each grid-placed text content as an independent large segment, obtains word sizes with different priorities according to the process (3) for calculation, then puts the texts together, tries to put the texts into a 'block', and performs a circular calculation according to the putting result, wherein the circular calculation is as follows:
(1) All characters are put into the 'block', and the area of the residual space is less than or equal to k% of the total area of the 'block', then the flow (5) is skipped;
(2) All the characters are put into "block", and the area of the residual space is greater than k% of the total area of "block", modifying S a Has a value of (S) b +S a ) Rounding down and then jumping to the flow (3);
(3) All characters can not be put into 'block', S is modified b Has a value of (S) b +S a ) Rounding up and then jumping to the flow (3);
(4) The word size which meets the conditions cannot be found, and the word size which can place all the characters and has the area ratio of the residual space closest to k% is selected as a calculation result;
the flow (5) calculates the space occupation ratio of the characters corresponding to each grid in the block according to the typesetting result in the flow (4);
and obtaining the word size corresponding to each priority and the proportion of each grid in the block according to the flow, and finally obtaining the grid size.
2. The automatic layout device according to claim 1, wherein the font size change rate functional relationship comprises:
power function: f (x) = mx a Wherein m and a are empirical coefficients;
exponential function: f (x) = lb x Where l and b are empirical coefficients;
logarithmic function: f (x) = clog (x), where c is an empirical coefficient.
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