Method and device for drawing a route in a map
A technology for drawing maps and routes, applied in the field of image processing, can solve problems such as gaps in joints, repeated drawing, etc., and achieve the effect of image quality improvement
Active Publication Date: 2016-04-13
TENCENT CLOUD COMPUTING BEIJING CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Based on this, it is necessary to provide a method and device for drawing a route on a map in view of the problem that the traditional method of drawing a polyline segment route in a map causes gaps or repeated drawing at the junction of the straight line segments in the drawn polyline segment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] 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.
[0030] In one embodiment, a terminal is provided, and the structural diagram of the terminal is as follows figure 2 shown. The terminal includes a processor, a graphic processing unit, a storage medium, a memory, a display screen and an input device connected through a system bus. Wherein, the storage medium of the terminal stores an operating system, and also stores a device for drawing a route in a map and an electronic map, or stores an electronic map including a device for drawing a route in a map, and the device for drawing a route in a map is used to realize a A method for drawing routes i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for drawing a route in a map. The method includes the steps of dividing data point sequences for drawing broken line sections of the route at straight line sections connected with adjacent data points to obtain a set of data point units for representing three-point type broken line sections, conducting drawing with the data point units as the unit, and dividing the three-point type broken line sections represented by the data point units into multiple sequence-adjacent graphic areas and drawing the graphic areas when each data point unit is drawn. By means of the method, every two adjacent three-point type broken line sections can be seamlessly connected, and the sequence-adjacent graphic areas can be seamlessly connected together to form the three-point type broken line sections; in this way, the broken line section route with no connection gaps or repeated drawing can be obtained after all the data point units are drawn, and the image quality is improved. The invention further provides a device for drawing the route in the map.
Description
technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for drawing a route in a map. Background technique [0002] At present, when drawing a polyline segment route in an electronic map, a method of drawing a straight line segment with a width between two points is usually used. However, a polyline segment drawn in this way will cause gaps and repetitions at the junction of the straight line segments in the polyline segment. Problems drawn. Such as figure 1 A polyline segment route shown includes straight line segments 110, 120 and 130, and there is a repeated drawing area 110a and a gap 110b between the straight line segments 110 and 120, and similarly, there is also a repeated drawing area 120a and Void 120b. [0003] Therefore, the traditional method of drawing polyline segment routes in the map results in gaps or repeated drawing areas at the junctions of straight line segments in the drawn polylin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T11/00G06T11/20G06T11/40G06F17/30
Inventor 张颖峰王长春周康
Owner TENCENT CLOUD COMPUTING BEIJING CO LTD