Multi-touch multimedia dome display device and multi-touch method thereof
A multi-touch and demonstration device technology, applied in the input/output process of instruments, data processing, electrical and digital data processing, etc., can solve the problems of inability to rotate in any direction and few functions
Active Publication Date: 2016-08-17
CHINA EDUCATION STAR TECH
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[0006] The purpose of the present invention is to provide a multi-touch multimedia dome display device and its multi-touch method, aiming to solve the technical problem that the dome display device in the prior art cannot rotate in any direction and has fewer functions
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[0064] Referring to the drawings, wherein like reference numerals represent like components, the principles of the present invention are exemplified when implemented in a suitable computing environment. The following description is based on illustrated specific embodiments of the invention, which should not be construed as limiting other specific embodiments of the invention not described in detail herein.
[0065] see figure 1 , figure 1 It is a schematic flowchart of a multi-touch method for a multimedia dome display device provided by an embodiment of the present invention.
[0066] In step S101, a three-dimensional space model corresponding to the dome demonstrator is stored in advance.
[0067] Wherein the three-dimensional space model includes the virtual ball of the three-dimensional coordinate system of the dome display instrument and the corresponding relationship of the two-dimensional circular cake coordinate system, and the virtual ball coordinate points (x, y, z...
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The invention discloses a multi-touch multimedia dome display device and a multi-point touch method thereof. The invention pre-stores a three-dimensional space model corresponding to the dome display device, and the three-dimensional space model includes a three-dimensional coordinate system of the dome display device. The corresponding relationship between the virtual ball and the two-dimensional circular cake coordinate system, and the virtual spherical coordinate system of the three-dimensional coordinate system and the two-dimensional circular cake coordinate system are dynamically converted through the rectangular coordinate system; through the projector and fisheye inside the dome demonstrator The lens projects the image corresponding to the two-dimensional circular cake coordinate system onto the ball screen of the dome display device; detects the touch action on the ball screen surface of the dome display device, and judges the type of the touch action; according to the dome display device The three-dimensional space model and the type of touch action control the action of the dome demonstrator. The present invention establishes a three-dimensional space model for the ball screen demonstrator, and realizes the control of the ball screen demonstrator on the basis of the three-dimensional space model.
Description
technical field [0001] The invention belongs to the technical field of spherical display, and in particular relates to a multi-touch multimedia dome display device and a multi-touch method thereof. Background technique [0002] With the continuous popularization of multimedia dome display devices, users have higher and higher requirements for the display functions of multimedia dome display devices. [0003] The multimedia dome display device projects a circular cake image onto a rear projection ball screen through a projector and a fisheye lens to obtain a complete graphic display of the entire spherical surface. In recent years, the multimedia dome display device has Many people have loaded the planar multi-touch technology into this product, and a multi-touch multimedia dome display device has appeared, which can realize graphics and texts on the surface of the dome screen by clicking, and touch controls such as zooming in and out, moving and rotating the graphics and tex...
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IPC IPC(8): G06F3/042
CPCG06F3/0488
Inventor 吴迪余庆赵东林丁伟曾阳春
Owner CHINA EDUCATION STAR TECH