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Trajectory playback method and device of electronic map

A track playback, electronic map technology, applied in the direction of electronic digital data processing, geographic information database, special data processing applications, etc., can solve the problem of unable to achieve uniform movement, visual confusion, unable to ensure continuous effects on the screen and so on

Inactive Publication Date: 2018-08-17
武汉智博创享科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two disadvantages in this method: when the trajectory is relatively complex, draw the complete trajectory first, and then move the target, which will give people visual confusion. In addition, when the target moves on the trajectory, according to the current algorithm, according to the different speed , the target may skip one or more intermediate points, not every coordinate point will pass through, neither can move at a constant speed, nor can it guarantee the continuous effect of the picture visually

Method used

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  • Trajectory playback method and device of electronic map
  • Trajectory playback method and device of electronic map

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Embodiment 1

[0022] figure 1 A track playback method of an electronic map is shown, the method comprising:

[0023] Step 101: Determine the start position and end position of track playback;

[0024] In practical applications, if the trajectory playback starts, the coordinate data of the movement of the target needs to be obtained. The coordinate data includes the start position, the end position and the target point. The target point refers to the coordinate point passed by the target when it moves.

[0025] When the coordinate data of the target moving within a period of time is obtained, it is judged whether the moving distance of the target is greater than a certain value;

[0026] If it is larger, the coordinate data will be interpolated, and if it is smaller, the coordinate data will be merged.

[0027] Step 102: The target object draws a trajectory from the starting point in a moving state, and the target object appears once at each target point;

[0028] Specifically, the moving...

Embodiment 2

[0035] see Figure 4 , the electronic map track playback device provided by the present invention, the device includes a determination unit 201 and a track playback unit 202;

[0036] Determining unit 201, for determining the start position and end position of track playback;

[0037] The trajectory playback unit 202 is used to draw the trajectory of the target object from the starting position in the moving state, and the target object appears once at each target point. When the target object moves from the starting position determined by the determination unit to the end position, the Track playback of the electronic map.

[0038] see Figure 5 , as a specific embodiment of the present invention, the track playback device of the electronic map of the present invention further includes an acquisition unit 203 for acquiring coordinate data of the movement of the target object, and the coordinate data includes the start position, the end position and the target point. Wherei...

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Abstract

The invention provides a trajectory playback method and device of an electronic map, and belongs to the field of electronic maps. The method includes: determining a starting point position and an ending point position of trajectory playback; drawing a trajectory of a target object in a moving state from the starting point position, wherein the target object appears once at each target point; and completing trajectory playback on the electronic map when the target object moves from the starting point position to the ending point position. According to the solution of the invention, only the positions of a starting point and an ending point are given in trajectory playback, the target object is enabled to actively draw the trajectory from the starting point, and move when the trajectory is drawn. At the same time, a moving rate is changed through changing drawing frequency to ensure that the target object appears once at each coordinate point. A forming process of the trajectory is dynamically and visually displayed.

Description

technical field [0001] The invention relates to the field of electronic maps, in particular to a track playback method and device for electronic maps. Background technique [0002] In the map development process, there are many application scenarios for trajectory playback. The existing map development API provides a way to draw a complete trajectory first, and then move the target object on the trajectory at a specific speed. [0003] There are two disadvantages in this method: when the trajectory is relatively complex, draw the complete trajectory first, and then move the target, which will give people visual confusion. In addition, when the target moves on the trajectory, according to the current algorithm, according to the different speed , the target may skip one or more intermediate points, not every coordinate point will pass through, neither can move at a constant speed, nor can it guarantee the continuous effect of the picture visually. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06T11/20
CPCG06F16/29G06T11/20
Inventor 卢建敏张清陶江源张发勇于国华
Owner 武汉智博创享科技股份有限公司