TERMINAL DEVICE AND DRAWING DISPLAY PROGRAM FOR TERMINAL DEVICE

• US 20140218409A1
• Filed: 03/27/2012
• Published: 08/07/2014
• Est. Priority Date: 09/29/2011
• Status: Active Grant

• Current Assignee: OKI Electric Industry Company Limited
• Original Assignee: Seiko I Infotech, Inc. (OKI Electric Industry Company Limited)
• Inventors: Kawatani, Satoshi, Furuyama, Eiji
• Granted Patent: US 9,672,589 B2
• Time in Patent Office: Days
• US Class Current: 345/670
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: G06T 2210/04 Architectural design, interior design
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting

Abstract

In order to display a digital drawing on a display screen of a terminal device at a scale reduction compliant accurately to actual dimensions, a CPU 52 of a tablet-type terminal device 50 displays drawing data of a digital drawing on a display screen 51 at a predetermined scale reduction. At this time, the CPU 52 references attribute information of the data of the digital drawing, compares it with a display density of the tablet-type terminal device 50, and displays a design drawing on the display screen 51 at a selected fixed scale reduction. In this configuration, the drawing data at a scale reduction compliant accurately to actual dimensions can be displayed on the display screen of the terminal device. Since the display compliant accurately to the actual dimensions is achieved, a user can measure distances and dimensions by directly using a triangle scale 100 on the display screen 51.

Claims

1. A terminal device configured to display drawing data of a digital drawing on a display screen, comprising:

digital drawing receiving means configured to receive the digital drawing having scale reduction data when printing the drawing data at actual dimensions;

display density data storing means configured to store data relating to a display density of the display screen;

scale reduction data extracting means configured to extract scale reduction data from the digital drawing received by the digital drawing receiving means; and

display means configured to perform a computation based on the display density data stored in the display density storing means and the scale reduction data extracted by the scale reduction data extracting means, and display the drawing data of the digital drawing on the display screen.

2. The terminal device according to claim 1, comprising:

fixed scale reduction presenting means configured to present to a user fixed scale reductions of a plurality of stages; and

selection receiving means configured to receive a selection of one of the plurality of fixed scale reductions presented by the fixed scale reduction presenting means,

wherein when the selection receiving means receives the selection of one of the fixed scale reductions, the display means displays the drawing data of the digital drawing at the selected fixed scale reduction.

3. The terminal device according to claim 1, wherein if the drawing data of the digital drawing received by the digital drawing receiving means is drawing data in a raster format, the drawing data of the corresponding digital drawing includes data relating to the drawing resolutions in both the vertical and horizontal directions.

4. The terminal device according to claim 1, wherein the data relating to the density of the corresponding display screen stored by the display density data storing means is a value represented by ô

the number of pixels/actual dimensions of a display area of the display screenö

of the corresponding display screen, and this value is stored with respect to both the vertical and horizontal direction of the display screen.

5. The terminal device according to claim 2, wherein the plurality of fixed scale reductions presented to the user by the fixed scale reduction presenting means correspond to the scale reductions marked on a triangle scales.

7. The terminal device according to claim 1, comprising:

provisional display means configured to display the drawing data at a provisional scale reduction data on the display screen when the extracting means cannot extract the scale reduction data;

fixed scale reduction setting receiving means configured to receive the setting of the fixed scale reduction from the user in a stage of the enlargement or reduction of the drawing data of the digital drawing displayed on the display screen; and

scale reduction data computing means configured to compute scale reduction data to be provided for the drawing data of the corresponding digital drawing based on the requested display scale reduction when the setting of the fixed scale reduction is received by the fixed scale reduction setting receiving means, the fixed scale reduction whose setting is received thereby, and a provisional scale reduction displayed by the provisional display means.

6. A drawing display program to be executed by a computer in a terminal device configured to display drawing data of a digital drawing on a display screen and to have display density data storing means configured to store data relating to the display density of the display screen, the drawing display program comprising:

a digital drawing receiving function configured to receive the digital drawing having scale reduction data when printed at actual dimensions;

a scale reduction data extracting function configured to extract scale reduction data from the digital drawing received by the digital drawing receiving function;

a display function configured to perform a computation based on the display density data stored in the display density storing means and the scale reduction data extracted by the scale reduction data extracting function, and display the drawing data of the digital drawing on the display screen.