Abstract: Disclosed herein is a system integrally comprising a CAD system and an electronic filing system. When vector data such as figures and their names are converted to image (raster) data for storage, the system automatically extracts, from the vector data coming from the CAD system, those data that correspond to predetermined character attributes, maximum numeric attributes, primitives of each figure and the topology thereof. The data are set as key-words and are made to correspond to the image data for registration and storage into the electronic filing system. In searching for desired image data, the corresponding key-words are input for data retrieval and output.

Abstract: A system which includes a CAD system and an electronic filing system, wherein when vector data such as figures and their names are converted to image data for storage, the system automatically extracts, from the vector data coming from the CAD system, data that correspond to predetermined character attributes, maximum numeric attributes, primitives of each figure and the topology thereof. The extracted data is set as key-words and made to correspond to the image data for registration and storage in the electronic filing system. In searching for desired image data, key-words corresponding to the desired image data is input for retrieval and output of the desired image data.

Abstract: A drawing data obtained by a CAD device is extended once to an image data on a plane and the extended image data is coded and stored in an electronic file device so that every display can be done by merely reading data stored in the electronic file device, decoding and displaying it. The image data having a plurality of attributes is stored attribute by attribute so that the electronic file device can display only image having attribute or attributes instructed and it is possible to obtain only required image information among various informations contained in a complicated image and thus searching is facilitated.

Abstract: A filing method and a system for filing image data operate to divide an input image having a dot number larger than a predetermined dot number of a display screen at a fundamental unit equal to the display screen size, to file the divided input images as a plurality of partial image data on an optical disk, and to retrieve the filed images at high speed. The division filing system includes an input image process device for compressing the divided partial image data, and an index generating device, such as a complexity detecting circuit, for extracting either position information of a distinguishable partial image, or address information among the divided partial images. An optical disk device stores either the position information or the address information as well as the compressed image data into an optical disk.