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PDF file display method and system based on information display platform

A display platform and display method technology, applied in the field of PDF file display, can solve the problem that PDF files cannot be displayed across display units and nodes, achieve high resolution, detail level, high display effect, and avoid distortion and aliasing. Effect

Active Publication Date: 2015-10-21
广东瀚阳轨道信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the technical problem that the existing technology cannot realize the display of PDF files across display units and nodes, the present invention provides a PDF file display method and system based on an information display platform

Method used

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  • PDF file display method and system based on information display platform
  • PDF file display method and system based on information display platform
  • PDF file display method and system based on information display platform

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Embodiment

[0034] The information display platform of the present invention provides a parallel rendering engine and manages information, specifically including a file server, a master node machine and multiple sub-node machines, and the file server, the master node machine and multiple sub-node machines are connected to each other through a computer network , each child node machine is also equipped with multiple display units. The main node machine coordinates the rendering and control of each sub-node machine. Each sub-node machine can control up to 4 display units, and the number of sub-node machines can be expanded arbitrarily. The main node machine adopts a high-performance management controller, and its main function is to be responsible for the coordinate division and time scheduling management of multiple display areas, and to control the synchronization between each sub-node machine and the division of the display area of ​​each sub-node machine through the control flow. Each s...

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Abstract

The invention provides an information display platform based PDF (portable document format) file display method and an information display platform based PDF file display system. The display method includes the steps: reading PDF configuration files and scene attribute information of each PDF file, and reading all PDF paths and file names needing to be displayed; searching a given PDF file, creating a display window, analyzing a page given by the current PDF file and needing to be displayed, and extracting RGBA pixel information of the page; generating texture information according to the RGBA pixel information, binding the texture information in corresponding display area, and controlling all node computers to synchronously display the PDF files according to size and position of the display area; and controlling display of the display area and the PDF files. By the method and the system, the PDF files can be moved and resized optionally in a cross-display-unit and cross-node-computer mode, and distortion and aliasing can be avoided. Besides, the method and the system are supportive to high-speed PDF file display under ultrahigh display resolution above one hundred million pixels.

Description

technical field [0001] The invention relates to the fields of graphics and image processing and ultra-high resolution display technology, and in particular to a PDF file display method and system based on an information display platform. Background technique [0002] With the development of computer networks and the increasing amount of information, information display technology has penetrated into all aspects of production and life, such as industrial design, film and television entertainment, scientific research, education and management. Studies have shown that people can quickly and effectively process a large amount of information they see in a short period of time, so how to quickly and visually display massive information in front of people is particularly important. In particular, the demand for displaying information in a larger size, higher resolution, and more information is becoming more and more prominent. How to achieve shorter response time, faster processin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14G06F3/0484
Inventor 孙峻岭罗明宇归强付燕平蔡文举
Owner 广东瀚阳轨道信息科技有限公司
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