CN107169218B - Simulation method for digital information implantation of paper - Google Patents
Simulation method for digital information implantation of paper Download PDFInfo
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- CN107169218B CN107169218B CN201710385704.9A CN201710385704A CN107169218B CN 107169218 B CN107169218 B CN 107169218B CN 201710385704 A CN201710385704 A CN 201710385704A CN 107169218 B CN107169218 B CN 107169218B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04845—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
Abstract
A simulation method for implanting digital information into paper is used for solving the problem of virtual modeling of the existing fiber-made paper encrypted paper. The simulation method of the invention utilizes Unigraphics NX to carry out virtual product modeling of the digital paper, and meets the design concept of the digital paper to the maximum extent. The invention mainly aims at the paper simulation of fiber paper-making encryption based on the dot matrix graph, a 3D paper model is firstly formed through Unigraphics NX, because the dot matrix graph is formed by regular fiber interweaving formed by spiral airflow or a magnetic dot matrix coding controller acting on magnetic fibers, encrypted images and characters need to be loaded into paper in an embedding method, then realistic rendering is carried out, and the encrypted paper is displayed to obtain a simulated cracked image through fiber scanning or magnetic powder covering. The method improves the paper quality by using the simulation performance of software in the early stage of information implantation, and reduces the time and labor consumption of constructing a prototype of papermaking equipment and encryption equipment in practice.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to a method for simulating digital information implantation of paper.
Background
In recent years, while the bill business is rapidly developed, some lawless persons manufacture the fake bills by means of cloning, changing bills and the like, which not only causes great economic loss to the country, but also influences the stability of financial order. In the forged bills, common bills (such as tax bills) become main forged objects, and the common bills are not suitable for the current bill management and identification requirements according to the original fluorescent anti-counterfeiting and safety line anti-counterfeiting technologies.
Aiming at the problem that the paper encrypted by the fiber finished paper based on the dot matrix pattern is generated, when the paper is manufactured, because the construction of a papermaking device and an encryption device prototype consumes time and labor in practice, the paper quality is difficult to ensure, and the paper machine procedure is too long, the actual operation for testing small sections of encrypted paper is difficult to carry out.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a paper digital information implantation simulation method, which can simulate paper for fiber paper encryption based on dot matrix graphics, and can improve the paper quality and save manpower and material resources by using the simulation performance of software in the early stage of information implantation.
In order to achieve the purpose, the invention adopts the technical scheme that:
a simulation method for digital information implantation of paper mainly aims at the paper simulation of fiber paper-forming encryption based on dot matrix graphics, a 3D paper model is firstly formed through a virtual product design software Unigraphics NX, characters or graphics are generated on the paper model, the characters and the graphics are enabled to generate an effect of being embedded into the paper model through a stretching difference solving method, and then the paper modeling is completed through real rendering. Since the fibers are distributed among the paper, encrypted letters and graphics should be present on both the front and back sides of the simulated paper.
The paper simulation is respectively different simulations on regular fiber interwoven paper formed by spiral airflow and paper formed by magnetic fibers acted by a magnetic dot matrix coding controller.
The simulation of a regular fiber-interwoven paper formed by a spiral air flow is represented by:
the gray levels of the dot matrix patterns are divided into three types, and the gray levels are distributed from dark gray to white;
the fiber rotation direction is determined by spiral airflow and is divided into a left-handed rotation and a right-handed rotation.
The simulation of the paper formed by the magnetic lattice encoding controller acting on the magnetic fiber is shown as follows:
the color of the dot pattern is composed of magnetic fibers of different colors, so that the dot pattern should have different colors when simulating paper.
The method for firstly forming the 3D paper model through the virtual product design software Unigraphics NX comprises the following steps:
selecting a cuboid command in Unigraphics NX, firstly positioning original points of paper, then designing the size of the paper, and selecting no following Boolean coefficient.
The process of generating the characters or the graphs on the paper model comprises the following steps:
creating a text, selecting a text type selection surface, selecting a text placement surface as the front surface of the virtual paper, selecting a curve on the surface by a position placement method on the surface, removing a reference text, inputting the same text again, and completing the creation of characters by defaulting the anchor point position and the parameter percentage.
The specific process of generating the effect of embedding the characters and the graphics into the paper model by the method of stretching and differencing is as follows:
after the created text is selected, a stretching option of a toolbar is selected, a direction vector selects a paper model to be inward, an end value is set to be 1mm, stereoscopic impression is generated, a Boolean coefficient is set to be a difference, and meanwhile, the paper model is selected to be a difference object, so that the effect of embedding the text into the simulation paper is achieved.
In order to generate the simulation effect of the encrypted paper with the regular fiber interweaving formed by the spiral airflow, real rendering is carried out, a paper model is selected for white bright coloring, black textures are selected for embedded texts, and all objects are subjected to wire drawing coating treatment.
For producing a mould for the production of a security paper formed by a magnetic dot matrix coding controller acting on magnetic coloured fibres
And (6) copying the original paper model for filling. When the real rendering is carried out, a paper model is selected to carry out white bright coloring, the embedded text selects red textures, all objects are subjected to white bright coating treatment, the color of the edited and copied paper model is light pink, and because red magnetic fibers exist in the paper, the color of the text formed by the encoding controller is displayed as red in a darker mode, and the other paper containing the red magnetic fibers is displayed as light pink in a dispersed mode.
Compared with the prior art, the method provided by the invention integrates the characteristics of a fiber paper encryption method based on the dot matrix image and virtual 3D modeling, and constructs a paper model with a real encryption effect. In the early stage of digital information implantation, the invention utilizes the simulation performance of software to improve the paper quality, reduce the time and labor consumption construction of a papermaking device and an encryption device prototype in practice and save manpower and material resources.
Drawings
Fig. 1 is a 3-rotation model of the spiral airflow encryption paper gray scale.
Fig. 2 is a spiral airflow encryption paper gray scale 2 left-handed model of the invention.
Fig. 3 is a front model of the red magnetic fiber-encrypted paper of the present invention.
Fig. 4 is a reverse model of the blue magnetic fiber-encrypted paper of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
The present invention is further explained by taking the code "Shanxi university of science and technology" as an example.
Referring to fig. 1, a simulation method for digital information implantation of paper, first modeling of base paper, selecting a cuboid command at unicraphics NX, first positioning paper origin, then designing size, and then selecting no boolean coefficient. After the basic paper is constructed, a text "Shanxi science and technology university" is created, on a text type selection surface, a text placement surface is selected as a virtual paper front surface, a position placement method on the surface selects a curve on the surface, a reference text is removed, and the following steps are input: the Shanxi university of science and technology, the anchor position and the parameter percentage are defaulted, and the text input is completed after the click determination.
Next, the text needs to be stereoscopically stretched and embedded. The 'stretching' option of a toolbar is selected after the text 'Shaanxi science and technology university' is selected, the direction vector selects the inward paper model, the ending value is set to be 1mm, stereoscopic impression is generated, the Boolean coefficient is set to be difference, and meanwhile, the paper model is selected to be a difference object. And after the click is determined, the construction of the virtual paper implanted by the digital information is completed.
In order to generate the simulation effect of the encrypted paper formed by the regular fiber interweaving of the spiral air flow, real rendering is carried out, a paper model is selected to carry out white bright coloring, the embedded text selects black texture, and all objects are subjected to right wiredrawing coating treatment, so that the effect of the spiral air flow encrypted paper gray scale 3 right-handed model shown in figure 1 is generated. The embedded text is selected as a gray grammar, and all objects are subjected to left-wire drawing coating treatment, so that a spiral airflow encryption paper gray level 2 left-handed model effect shown in fig. 2 is generated.
In order to generate the encrypted paper simulation formed by the magnetic dot matrix coding controller acting on the magnetic fibers, the original paper model is copied and filled. When the real rendering is carried out, a paper model is selected to carry out white bright coloring, the embedded text selects red texture, all objects are subjected to white bright coating treatment, the color of the edited and copied paper model is light pink, the color of the text formed by the encoding controller is displayed as red in a darker way due to the fact that red magnetic fibers exist in the paper, and the other paper containing the red magnetic fibers is displayed as light pink in a more dispersed way, so that the effect of the front model of the red magnetic fiber encrypted paper as shown in fig. 3 is generated. Selecting an embedded text as a blue grammar, performing white bright paint treatment on all objects, editing and copying the color of a paper model as sky blue, displaying the color of the text formed by an encoding controller as blue because blue magnetic fibers exist in the paper, displaying the color of the other paper containing the blue magnetic fibers as the sky blue in a dispersed manner, selecting the model, and performing model rotation by using a middle key and a left key of a mouse to generate a reverse model of the blue magnetic fiber encrypted paper as shown in figure 4.
Claims (3)
1. A simulation method for digital information implantation of paper mainly aims at the paper simulation of fiber paper-forming encryption based on dot matrix graphics, and is characterized in that a 3D paper model is firstly formed through virtual product design software Unigraphics NX, characters or graphics are generated on the paper model, the characters and the graphics generate an effect of being embedded into the paper model through a method of stretching and differencing, and then the paper modeling is completed through real rendering;
the paper simulation is respectively different simulations on regular fiber interwoven paper formed by spiral airflow and paper formed by magnetic fibers acted by a magnetic dot matrix coding controller, and the simulation on the regular fiber interwoven paper formed by the spiral airflow is represented as follows:
the gray levels of the dot matrix patterns are divided into three types, and the gray levels are distributed from dark gray to white;
the fiber rotation direction is determined by spiral airflow and is divided into a left rotation type and a right rotation type;
the simulation of the paper formed by the magnetic lattice encoding controller acting on the magnetic fiber is shown as follows:
the dot matrix patterns have different colors;
the specific process of generating the effect of embedding the characters and the graphics into the paper model by the method of stretching and differencing is as follows:
after the created text is selected, a stretching option of a toolbar is selected, a direction vector selects a paper model to be inward, an end value is set to be 1mm, stereoscopic impression is generated, a Boolean coefficient is set to be a difference, and meanwhile, the paper model is selected to be a difference object, so that the effect of embedding the text into the simulation paper is achieved.
2. The method for simulating the digital information implantation in paper according to claim 1, wherein the method for firstly forming the 3D paper model by the Unigraphics NX is as follows:
selecting a cuboid command in Unigraphics NX, firstly positioning original points of paper, then designing the size of the paper, and selecting no following Boolean coefficient.
3. The method for simulating the digital information implantation of the paper as claimed in claim 1, wherein the process of generating the characters or the graphics on the paper model is as follows:
creating a text, selecting a text type selection surface, selecting a text placement surface as the front surface of the virtual paper, selecting a curve on the surface by a position placement method on the surface, removing a reference text, inputting the same text again, and completing the creation of characters by defaulting the anchor point position and the parameter percentage.
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| CN112406354A (en) * | 2017-11-27 | 2021-02-26 | 吴宁飞 | Application of novel anti-counterfeiting material in commodity anti-counterfeiting, currency anti-counterfeiting, bank card and the like |
| CN108594763B (en) * | 2017-12-29 | 2020-11-10 | 重庆平伟汽车科技股份有限公司 | Batch stretching method and device on model entity based on Unigraphics NX secondary development |
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| EP1317738B1 (en) * | 2000-09-06 | 2004-10-27 | Proficiency Ltd. | Boundary representation per feature methods and systems |
| CN102767112B (en) * | 2012-07-02 | 2014-12-10 | 陕西科技大学 | Digitized encryption method for fiber paper making process based on dot patterns |
| CN103061194B (en) * | 2012-12-11 | 2015-06-24 | 金红叶纸业集团有限公司 | Paper producing method and paper |
| CN104294696B (en) * | 2014-08-19 | 2017-01-25 | 陕西科技大学 | Digitized encryption method for forming dot matrix patterns on basis of rotary airflow in fiber papermaking process |
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