Zhongke Xingtu applies for a patent related to the ECharts drag-and-drop method, enabling markLine dragging and data linkage updates based on ECharts

March 22 News: According to information from the National Intellectual Property Administration, China Science Star Map Measurement and Control Technology Co., Ltd. has applied for a patent titled “A Drag Method for MarkLine Based on ECharts.” The application publication number is CN121704755A, the application number is CN202511913396.3, the publication date is March 20, 2026, and the application date is December 18, 2025. Inventors include Zhang Qing, Niu Dong, Xu Kaikai, Wang Bochen, and Xu Peihao. The patent agency is Hefei Changyuan Patent Agency (General Partnership), with patent agent Jin Hongyan. The classification codes are G06F3/0486 and G06F3/0354.

Patent Abstract: The invention discloses a method for dragging mark lines based on ECharts, belonging to the field of front-end data visualization technology. The method involves listening to ECharts’ mousedown, mousemove, and mouseup events to obtain mouse pixel coordinates, converting them to chart data coordinates using convertFromPixel; setting an error threshold to determine selected reference lines, recording initial positions and indices; during dragging, calculating new reference line positions based on offsets, constraining the X-axis time range boundaries, and updating markLine and markArea in real-time with setOption for smooth transitions; after releasing the mouse, triggering Vue events to update business data, completing start/end time calibration, and synchronizing updates for tooltips, statistical information, and window detail parameters, enabling intuitive adjustment and synchronized display of task time segments.

Star Map Measurement and Control was established on December 14, 2016, and listed on the Beijing Stock Exchange on January 2, 2025. Its registered and office addresses are both located in Hefei, Anhui Province. The company specializes in space measurement and control management and space digital simulation, possessing certain technical advantages in the industry and showing significant investment value.

Main business includes space measurement and control management and space digital simulation. It belongs to the Shenwan industry category of Computer - IT Services II - IT Services III, involving concepts such as IT services, listed companies on the Beijing Stock Exchange, and artificial intelligence.

In 2025, Star Map Measurement and Control reported revenue of 321 million yuan, ranking second in the industry. The industry leader, Capital Online, achieved 1.237 billion yuan. The industry average is 583 million yuan, with a median of 321 million yuan. Of its main business, technology development and services accounted for 245 million yuan (76.37%), system integration 44.15 million yuan (13.74%), ground measurement and control system construction 17.42 million yuan (5.42%), and software sales 14.35 million yuan (4.47%). Net profit in 2025 was 101 million yuan, ranking first in the industry, with the second place, LianDi Information, at 7.58 million yuan. The industry average net profit was -168.37 million yuan, with a median of 7.58 million yuan.

Recent patent applications by China Science Star Map Measurement and Control include:

[Additional patents listed omitted for brevity]

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