CN106227429A - Card 3D overturning simulation method and device of two-dimensional display screen - Google Patents

Abstract

The invention is suitable for the technical field of computers, and provides a card 3D overturning simulation method and a card 3D overturning simulation device for a two-dimensional display screen, wherein the method comprises the following steps: the card selected by a user is displayed and output on the two-dimensional display screen, the front side and the back side of the card are provided with patterns, when an instruction of the user for turning the card is received, the card is rotated by taking a straight line at a preset position in the longitudinal direction of the two-dimensional display screen as a rotating shaft, and in the process of rotating the card, the rotating angle, the transparency and the size of the card are adjusted according to a preset function so as to simulate the three-dimensional turning effect of the card, so that the rotating angle, the transparency and the size of the card are adjusted through the preset function, the three-dimensional turning simulation of the card is simplified, and the three-dimensional simulation efficiency of the card in the learning device is improved.

Description

Card 3D flip simulation method and device for two-dimensional display screen

technical field

The invention belongs to the technical field of computers, and in particular relates to a card 3D flip simulation method and device for a two-dimensional display screen.

Background technique

For a long time, due to the characteristics of small size, easy to carry, and bright colors of images or text on the card, cards have become an important way for children or students to recognize things or recognize words. Many parents will buy literacy or literacy paper cards for their children for their children to learn and use.

In real life, if parents want to provide their children with a lot of learning materials, they need to buy a lot of paper cards. On the one hand, buying a lot of paper cards is not easy to carry, and it will also increase the financial burden of parents. On the other hand, cards It is equivalent to a disposable product, which will cause a lot of waste of resources and is not conducive to environmental protection. With the popularization of portable terminals such as learning machines and tablet computers, electronic cards become possible. As long as the storage space is large enough, a learning machine or tablet computer can store thousands of electronic or digital cards, which can be used for children's identification, Literacy provides a wealth of material. However, most of the electronic cards provided by existing learning machines or tablet computers are flat cards, which are similar to a piece of flat pictures. Resulting in reduced attractiveness of electronic cards.

Contents of the invention

The object of the present invention is to provide a card 3D flip simulation method and device for a two-dimensional display screen. The problem of excessive consumption.

On the one hand, the present invention provides a kind of card 3D flip simulation method of two-dimensional display screen, and described method comprises the following steps:

displaying and outputting a user-selected card on said two-dimensional display screen, said card having a pattern on its front and back;

When receiving an instruction from the user to turn over the card, the card is rotated with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis. During the process of rotating the card, according to the preset The function adjusts the rotation angle, transparency, and size of the card to simulate a three-dimensional flip of the card.

In another aspect, the present invention provides a card 3D flip simulation device for a two-dimensional display screen, the device comprising:

A card display unit, configured to display and output a card selected by the user on the two-dimensional display screen, the front and back of the card have patterns; and

The three-dimensional flipping simulation unit is used to rotate the card with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis when receiving the user's instruction to flip the card, and rotate the card while turning the card. During the process, the rotation angle, transparency and size of the card are adjusted according to the preset function, so as to simulate the three-dimensional flip effect of the card.

In the embodiment of the present invention, the card selected by the user is displayed on the two-dimensional display screen. The front and back of the card have patterns, which can be used for user learning. The straight line at the preset position in the longitudinal direction is the rotation axis to rotate the card. During the process of rotating the card, adjust the rotation angle, transparency and size of the card according to the preset function to simulate the three-dimensional flip effect of the card, so as to pass the preset The function adjusts the rotation angle, transparency and size of the card, which simplifies the 3D flip simulation process of the card and improves the efficiency of the 3D simulation of the card.

Description of drawings

Fig. 1 is the implementation flowchart of the card 3D flip simulation method provided by the two-dimensional display screen provided by the embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a card 3D flip simulation device for a two-dimensional display screen provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a card 3D flip simulation device for a two-dimensional display screen provided by a preferred embodiment of the present invention; and

Fig. 4 is a schematic structural diagram of a 3D card flip simulation device for a two-dimensional display screen provided by another preferred embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The specific realization of the present invention is described in detail below in conjunction with specific embodiment:

Fig. 1 shows the implementation process of the card 3D flipping simulation method of the two-dimensional display screen provided by the embodiment of the present invention. For the convenience of explanation, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

In step S101, display and output the card selected by the user on the two-dimensional display screen, with patterns on the front and back of the card.

The embodiments of the present invention are applicable to learning devices, especially to learning devices with touch screens, for example, mobile devices such as learning machines and tablet computers. In the embodiment of the present invention, the front of the card is the side of the card that is displayed on the two-dimensional display, and the back of the card is the opposite side of the front of the card, wherein the two-dimensional display refers to a display that can only display two-dimensional images , while the cards are electronic or digital cards that can be used to assist children in literacy and literacy.

In step S102, when receiving an instruction from the user to turn over the card, the card is rotated with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis. Angle, transparency, and size are adjusted to simulate a three-dimensional flip of the card.

In the embodiment of the present invention, when the user's instruction to flip the card is received, the card is rotated with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis. Specifically, the instruction to flip the card can be triggered by the user's mouse click or the user's touch and slide, and the position of the rotation axis can be set according to the application needs to achieve different flip effects, such as scrolling and original position rotation.

Preferably, when the card is rotated, the card is rotated on the longitudinal direction of the two-dimensional display screen and the straight line passing through the middle of the card as the rotation axis, so as to realize the flipping of the original position, improve the real three-dimensional rotation effect of the card when it is rotated, and enhance the card's effect on children. attraction.

Further preferably, in the process of rotating the card, according to the rotation of the card and the display principle of the display screen, the rotation of the card is divided into two parts: the front of the card rotates to the front half which is perpendicular to the display screen and the back of the card rotates to the front half which is perpendicular to the display screen. The parallel second half is the process in which the two surfaces that the user can see are presented alternately.

First, turn the card outward from the two-dimensional display to the position vertical to the two-dimensional display. During the rotation to the position vertical to the two-dimensional display, the angle between the card and the two-dimensional display is given by the formula f ₁ (t1) =k ₁ *t1 is determined, 0≤f ₁ (t1)≤90, the transparency of the front of the card is determined by the formula f ₂ (t1)=Max–k ₂ *t1, the size of the card is determined by the formula f ₃ (t1)=1+ k ₃ *t1 is determined, t1 is the rotation time of the card, 0≤t1≤T1, T1, Max, k ₁ , k ₂ and k ₃ are constants. Here, when the transparency is the maximum value Max, the front of the card is considered to be opaque, and when the transparency is the minimum value of 0, the front of the card is considered to be fully transparent, so that when the front of the card rotates outward to the position of the vertical two-dimensional display, the transparency of the front of the card Gradually reduce from Max to zero, and finally the front of the card is invisible, and then the reverse or back of the card begins to enter the user's view. Preferably, when the two-dimensional display screen is a touch screen, the rotation time T1 is determined by the speed and/or strength of the user's touch or slide, so as to increase the authenticity of the flipping of the card.

After the card is rotated outwards from the two-dimensional display to the position vertical to the two-dimensional display, continue to rotate the card outward from the position vertical to the two-dimensional display until it is rotated to a position parallel to the two-dimensional display (that is, displayed on the screen). card), in the process of rotating to a position parallel to the two-dimensional display, the angle between the card and the two-dimensional display is determined by the formula f ₁ (t2)=k ₁ *t2, 90≤f ₁ (t2)≤180 , the transparency of the back of the card is determined by the formula f ₂ (t2)=Max–k ₂ *t2, the size of the card is determined by the formula f ₃ (t2)=1+k ₃ *t2, t2 is the rotation time of the card, 0≤t2 ≤ T2, T2, Max, k ₁ , k ₂ and k ₃ are constants. In the embodiment of the present invention, the size of the card when it is rotated outward from the two-dimensional display screen to a position perpendicular to the two-dimensional display screen is 1.05S, and S is the size of the card when it is parallel to the two-dimensional display screen.

In the embodiment of the present invention, by directly combining the rotation of the card with the two surfaces displayed in front of the user, the three-dimensional (3D) flipping simulation of the card under the two-dimensional display screen can be realized by using a linear function, and the card flipping is improved in realism. At the same time, it simplifies the 3D flip simulation process and reduces the system hardware requirements for learning equipment such as learning machines.

Fig. 2 shows the structure of the card 3D flip simulation device of the two-dimensional display screen provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

The card display unit 21 is used to display and output the card selected by the user on the two-dimensional display screen, and the front and back of the card have patterns; and

The three-dimensional flip simulation unit 22 is used to rotate the card with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis when receiving the user's instruction to flip the card. The rotation angle, transparency, and size of the card are adjusted to simulate a three-dimensional flip of the card.

The embodiments of the present invention are applicable to learning devices, especially to learning devices with touch screens, for example, mobile devices such as learning machines and tablet computers. In the embodiment of the present invention, the front of the card is the side of the card that is displayed on the two-dimensional display, and the back of the card is the opposite side of the front of the card, wherein the two-dimensional display refers to a display that can only display two-dimensional images , while the cards are electronic or digital cards that can be used to assist children in literacy and literacy.

In the embodiment of the present invention, when the user's instruction to flip the card is received, the card is rotated with the straight line at the preset position in the longitudinal direction of the two-dimensional display screen as the rotation axis. Specifically, the instruction to flip the card can be triggered by the user's mouse click or the user's touch and slide, and the position of the rotation axis can be set according to the application needs to achieve different flip effects, such as scrolling and original position rotation.

Preferably, when the card is rotated, the card is rotated on the longitudinal direction of the two-dimensional display screen and the straight line passing through the middle of the card as the rotation axis, so as to realize the flipping of the original position, improve the real three-dimensional rotation effect of the card when it is rotated, and enhance the card's effect on children. attraction.

Therefore, preferably, as shown in FIG. 3 , the three-dimensional flip simulation unit 22 may include:

The card rotating unit 221 is used to rotate the card with the straight line passing through the middle position of the card in the longitudinal direction of the two-dimensional display screen as the rotation axis.

Further preferably, in the process of rotating the card, according to the rotation of the card and the display principle of the display screen, the rotation of the card is divided into two parts: the front of the card rotates to the front half which is perpendicular to the display screen and the back of the card rotates to the front half which is perpendicular to the display screen. The parallel second half is the process in which the two surfaces that the user can see are presented alternately.

Therefore, further preferably, as shown in FIG. 4, the three-dimensional flip simulation unit 23 may include:

The first rotating unit 222 is used to rotate the card outward from the two-dimensional display screen to a position perpendicular to the two-dimensional display screen. During the rotation to the position vertical to the two-dimensional display screen, the angle between the card and the two-dimensional display screen is Determined by the formula f1(t1)=k1*t1, 0≤f1(t1)≤90, the transparency of the front of the card is determined by the formula f2(t1)=Max–k2*t1, and the size of the card is determined by the formula f3(t1)=1+ Determined by k3*t1, t1 is the rotation time of the card, 0≤t1≤T1, T1, Max, k1, k2 and k3 are constants; and

The second rotating unit 223 is used to continue to rotate the card outward from the position perpendicular to the two-dimensional display screen to a position parallel to the two-dimensional display screen. During the rotation to the position parallel to the two-dimensional display screen, the card and The angle of the two-dimensional display screen is determined by the formula f1(t2)=k1*t2, 90≤f1(t2)≤180, the transparency of the back of the card is determined by the formula f2(t2)=Max–k2*t2, and the size of the card is determined by the formula It is determined by f3(t2)=1+k3*t2, t2 is the rotation time of the card, 0≤t2≤T2, T2, Max, k1, k2 and k3 are constants.

In the embodiment of the present invention, the size of the card when it is rotated outward from the two-dimensional display screen to a position perpendicular to the two-dimensional display screen is 1.05S, and S is the size of the card when it is parallel to the two-dimensional display screen. When the transparency is the maximum value Max, the front of the card is considered to be opaque, and when the transparency is the minimum value of 0, the front of the card is considered to be fully transparent. In this way, when the front of the card rotates outward to the position of the vertical two-dimensional display screen, the transparency of the front of the card gradually changes from Max Reduced to zero, eventually the front of the card is invisible, and then the reverse or back of the card starts to come into view. Preferably, when the two-dimensional display screen is a touch screen, the rotation time T1 is determined by the speed and/or strength of the user's touch or slide, so as to increase the authenticity of the flipping of the card.

In the embodiment of the present invention, by directly combining the rotation of the card with the two surfaces displayed in front of the user, a linear function can be used to realize the 3D flip simulation of the card under the two-dimensional display screen, while improving the authenticity of the card flip , simplifies the 3D flip simulation process, and reduces the system hardware requirements for learning equipment such as learning machines.

In the embodiment of the present invention, each unit of the card 3D flipping simulation device of the two-dimensional display screen can be realized by a corresponding hardware or software unit, and each unit can be an independent software and hardware unit, or can be integrated into a learning device. The hardware unit is not used to limit the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. the card 3D of a two-dimensional display overturns analogy method, it is characterised in that described method comprises the steps:

Showing the card that output user selects in described two-dimensional display, the front and back of described card is with pattern；

When receiving the instruction that described user overturns described card, with predeterminated position on described two-dimensional display longitudinal direction Straight line is that rotary shaft rotates described card, during rotating described card, turns described card according to default function Dynamic angle, transparency and size are adjusted, to simulate the three-dimensional rollover effect of card.

2. the method for claim 1, it is characterised in that the front of described card be show in described two-dimensional display defeated The one side of the described card gone out, the opposing face in front described in the back side of described card.

3. the method for claim 1, it is characterised in that with predeterminated position straight on described two-dimensional display longitudinal direction Line is the step that rotary shaft rotates described card, including:

On described two-dimensional display longitudinal direction, rotate described card by the straight line in described card centre position for rotary shaft Sheet.

4. the method for claim 1, it is characterised in that with predeterminated position straight on described two-dimensional display longitudinal direction Line is that rotary shaft rotates described card, during rotating described card, according to the rotation to described card of the default function The step that angle, transparency and size are adjusted, including:

Described card is pivoted outwardly to by described two-dimensional display the position of vertical described two-dimensional display, turns to described During the position of vertical described two-dimensional display, the angle of described card and described two-dimensional display is by formula f₁(t1)=k₁* T1 determines, 0≤f₁(t1)≤90, the transparency of described card face is by formula f₂(t1)=Max k₂* t1 determines, described card Size by formula f₃(t1)=1+k₃* t1 determines, t1 is the rotation time of described card, 0≤t1≤T1, T1, Max, k₁、k₂ And k₃For constant；

Described card is outwards rotated further by the position of described vertical described two-dimensional display, turns to and described two dimension display Shield parallel position, described turn to the position parallel with described two-dimensional display during, described card and described two dimension The angle of display screen is by formula f₁(t2)=k₁* t2 determines, 90≤f₁(t2)≤180, the transparency of described card back is by formula f₂(t2)=Max k₂* t2 determines, the size of described card is by formula f₃(t2)=1+k₃* t2 determines, t2 is turning of described card The dynamic time, 0≤t2≤T2, T2, Max, k₁、k₂And k₃For constant.

5. method as claimed in claim 4, it is characterised in that described card is pivoted outwardly to vertically by described two-dimensional display The size during position of described two-dimensional display be 1.05S, S be described card parallel with described two-dimensional display time size.

6. the card 3D of a two-dimensional display overturns analog, it is characterised in that described device includes:

Card display unit, for showing the card that output user selects, the front of described card in described two-dimensional display With the back side with pattern；And

Three-dimensional upset analogue unit, for when receiving the instruction that described user overturns described card, with described two dimension display On screen longitudinal direction, the straight line of predeterminated position is that rotary shaft rotates described card, during rotating described card, according in advance If function rotational angle, transparency and the size of described card are adjusted, to simulate the three-dimensional rollover effect of card.

7. device as claimed in claim 6, it is characterised in that the front of described card be show in described two-dimensional display defeated The one side of the described card gone out, the opposing face in front described in the back side of described card.

8. device as claimed in claim 6, it is characterised in that described three-dimensional upset analogue unit includes:

Card rotating unit, for the straight line with described two-dimensional display longitudinal direction, by described card centre position be Rotary shaft rotates described card.

9. device as claimed in claim 6, it is characterised in that described three-dimensional upset analogue unit includes:

First rotating unit, for being pivoted outwardly to vertical described two-dimensional display by described card by described two-dimensional display Position, during the described position turning to vertical described two-dimensional display, described card and the folder of described two-dimensional display Angle is determined by formula f1 (t1)=k1*t1,0≤f1 (t1)≤90, the transparency of described card face by formula f2 (t1)= Max k2*t1 determines, the size of described card is determined by formula f3 (t1)=1+k3*t1, and t1 is the rotation time of described card, 0≤t1≤T1, T1, Max, k1, k2 and k3 are constant；And

Second rotating unit, for being outwards rotated further by the position of described vertical described two-dimensional display by described card, turns Move the position parallel with described two-dimensional display, described turn to the position parallel with described two-dimensional display during, Described card is determined by formula f1 (t2)=k1*t2 with the angle of described two-dimensional display, 90≤f1 (t2)≤180, described card The transparency at the sheet back side is determined by formula f2 (t2)=Max k2*t2, and the size of described card is by formula f3 (t2)=1+k3*t2 Determining, t2 is the rotation time of described card, 0≤t2≤T2, and T2, Max, k1, k2 and k3 are constant.

10. device as claimed in claim 9, it is characterised in that described card is pivoted outwardly to hang down by described two-dimensional display The size during position of straight described two-dimensional display be 1.05S, S be described card parallel with described two-dimensional display time chi Very little.