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Method and device for realizing single arrow animation

An implementation method and arrow technology, applied in the field of single arrow animation implementation, can solve the problems of blurred arrow images, unsmooth edges, blurred edges of arrows, etc., and achieve the effect of simple implementation and overcoming blurred arrow display.

Inactive Publication Date: 2015-02-18
CHINA DIGITAL VIDEO BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when a single arrow in image format is enlarged, the image of the arrow will be blurred and the edges will not be smooth.
This is because the arrow is in the image format, that is, the arrow is composed of pixels. To enlarge the arrow, you need to add new pixels by interpolation between the adjacent pixels that originally formed the arrow. When the image of the arrow is enlarged to a certain extent , because new pixels are continuously added by interpolation between adjacent pixels, and the added new pixels do not completely correspond to the trajectory of the original arrow, resulting in blurred or rough edges of the enlarged arrow. Phenomenon

Method used

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  • Method and device for realizing single arrow animation
  • Method and device for realizing single arrow animation
  • Method and device for realizing single arrow animation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] refer to figure 1 , showing a flow chart of Embodiment 1 of a method of the present invention, including:

[0046] Step 101, creating a single arrow with a control point;

[0047] The purpose of creating a single arrow with a control point is to change the shape and direction of the arrow conveniently, instead of making pictures of arrows with various shapes and directions as in the prior art. When implementing step 101 to create a single arrow, the following steps can be used:

[0048] determine the vertices that make up the single arrow;

[0049] Connect the determined vertices in sequence to form a single arrow.

[0050] In the embodiment of the present invention, the created single arrow includes 8 vertices, that is, vertex 1...vertex 8, and the created single arrow including 8 vertices can be found in figure 2 shown.

[0051] Furthermore, a single arrow can also be created in the following way, which specifically includes the following steps:

[0052] determ...

Embodiment 2

[0061] In this embodiment, the method of how to determine the vertex of a single arrow is given, see image 3 , specifically may include the following steps:

[0062]Step 301, selecting a first group of discrete points on the Bezier curve formed by the preset path;

[0063] Step 302, preset the coordinates of two initial points, that is, input the coordinates of the first coordinate point and the second coordinate point, wherein the first coordinate point is a point in the first group of discrete points, and the first coordinate point is a single arrow the first vertex of ;

[0064] Step 303, determining the second vertex of the single arrow according to the horizontal axis value of the first vertex and the vertical axis value of the second coordinate point, and the second vertex is a point in the first group of discrete points;

[0065] Step 304, obtain the coordinate value of the third vertex of the single arrow according to the horizontal axis value of the center point A ...

Embodiment 3

[0074] The present invention also provides an embodiment of a single arrow animation realization device, see Figure 4 , the device can include:

[0075] A creating unit 401, configured to create a single arrow with a control point;

[0076] The adjustment unit 402 is configured to adjust the single arrow control point to obtain a group of single arrows at different time points, and the control points are vertices constituting the single arrow;

[0077] The processing unit 403 is configured to perform interpolation processing on the group of single arrows to realize single arrow animation.

[0078] Further, the creation unit 401 may include:

[0079] Vertex subunit, used to determine the vertices that make up a single arrow;

[0080] The patch subunit is used to create a triangular patch constituting a single arrow according to the vertices determined by the vertex subunit;

[0081] The rendering subunit is used to integrate and render the triangular patches to obtain a si...

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Abstract

The invention provides a method for realizing single arrow animation, which comprises the following steps of: creating a single arrow with a control point; adjusting the control point of the single arrow to obtain a set of single arrows in different time points, wherein the control point is a top point for constructing the single arrow; and performing the interpolation process on the set of single arrows to realize the single arrow animation. By using the method for realizing single arrow animation in the embodiment of the invention, the shape and direction of the arrow can be conveniently changed by adjusting the control point of the arrow; and the single arrow animation can be realized by performing the interpolation process on the arrow with changed shape and direction at a certain time. The single arrow animation can be realized in a way different from the prior art which comprises: firstly manufacturing the arrow pictures with different shapes and directions, and performing the interpolation process on the arrow pictures. The method for realizing the single arrow animation is simpler to realize in comparison with the prior art.

Description

technical field [0001] The invention relates to the technical field of animation production, in particular to a method and device for realizing single arrow animation. Background technique [0002] In the current weather forecast, it is often necessary to use arrows to indicate the movement of satellite clouds, the direction of storms, and the direction of cold currents. Such arrows can present more intuitive weather information to the audience. [0003] In the prior art, the method for making an arrow is usually to make the arrow into a picture format, and then paste the picture of the arrow at a proper position as required. When using this method, if the shape and direction of the arrow need to be adjusted in practical applications, another arrow picture needs to be made according to the adjusted shape or direction of the arrow. In the prior art, if you want to realize the animation of a single arrow, you need to know the shape and direction of the single arrow at each ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T13/00
Inventor 胡守刚
Owner CHINA DIGITAL VIDEO BEIJING