Display control apparatus, display control method and display control program
First Claim
Patent Images
1. A display control apparatus comprising:
- an image conversion unit configured to convert a three-dimensional spatial image constructed in a three-dimensional virtual space into a first two-dimensional planar image by projecting said three-dimensional spatial image on a two-dimensional plane to result in said first two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a first visual point at a first visual-line angle and for converting said three-dimensional spatial image into a second two-dimensional planar image by projecting said three-dimensional spatial image on said two-dimensional plane to result in said second two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a second visual point at a second visual-line angle different from said first visual-line angle;
a display unit configured to show one of said first and second two-dimensional planar images on a display screen of said display unit by switching said display screen from said first two-dimensional planar image to said second two-dimensional planar image or vice versa;
a point specifying unit used for arbitrarily specifying a point, which is to be used as a point for specifying a visual-point position, on said display screen of said display unit; and
a visual-point position setting unit configured to set the visual-point position of said second visual point so as to make a specified-point corresponding point existing on said three-dimensional spatial image as a point corresponding to a specified point face said specified point, which is arbitrarily specified through said point specifying unit as a point on said display screen of said display unit showing said first two-dimensional planar image.
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Abstract
Disclosed herein is a display control apparatus which may include an image conversion unit, a display unit, a point specifying unit, and a visual-point position setting unit.
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Citations
8 Claims
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1. A display control apparatus comprising:
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an image conversion unit configured to convert a three-dimensional spatial image constructed in a three-dimensional virtual space into a first two-dimensional planar image by projecting said three-dimensional spatial image on a two-dimensional plane to result in said first two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a first visual point at a first visual-line angle and for converting said three-dimensional spatial image into a second two-dimensional planar image by projecting said three-dimensional spatial image on said two-dimensional plane to result in said second two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a second visual point at a second visual-line angle different from said first visual-line angle;
a display unit configured to show one of said first and second two-dimensional planar images on a display screen of said display unit by switching said display screen from said first two-dimensional planar image to said second two-dimensional planar image or vice versa;
a point specifying unit used for arbitrarily specifying a point, which is to be used as a point for specifying a visual-point position, on said display screen of said display unit; and
a visual-point position setting unit configured to set the visual-point position of said second visual point so as to make a specified-point corresponding point existing on said three-dimensional spatial image as a point corresponding to a specified point face said specified point, which is arbitrarily specified through said point specifying unit as a point on said display screen of said display unit showing said first two-dimensional planar image. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display control method comprising:
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converting a three-dimensional spatial image constructed in a three-dimensional virtual space into a first two-dimensional planar image by projecting said three-dimensional spatial image on a two-dimensional plane to result in said first two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a first visual point at a first visual-line angle, converting said three-dimensional spatial image into a second two-dimensional planar image by projecting said three-dimensional spatial image on said two-dimensional plane to result in said second two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a second visual point at a second visual-line angle different from said first visual-line angle and showing one of said first and second two-dimensional planar images on a display screen of a display unit by switching said display screen from said first two-dimensional planar image to said second two-dimensional planar image or vice versa; and
arbitrarily specifying a point, which is to be used as a point for specifying a visual-point position, on said display screen of said display unit through a point specifying unit used for arbitrarily specifying said specified point and setting the visual-point position of said second visual point so as to make a specified-point corresponding point existing on said three-dimensional spatial image as a point corresponding to said specified point face said specified point, which is arbitrarily specified through said point specifying unit on said display screen of said display unit showing said first two-dimensional planar image.
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8. A display control program for executing:
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converting a three-dimensional spatial image constructed in a three-dimensional virtual space into a first two-dimensional planar image by projecting said three-dimensional spatial image on a two-dimensional plane to result in said first two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a first visual point at a first visual-line angle, converting said three-dimensional spatial image into a second two-dimensional planar image by projecting said three-dimensional spatial image on said two-dimensional plane to result in said second two-dimensional planar image obtained if said three-dimensional spatial image is viewed from a second visual point at a second visual-line angle different from said first visual-line angle and showing one of said first and second two-dimensional planar images on a display screen of a display unit by switching said display screen from said first two-dimensional planar image to said second two-dimensional planar image or vice versa; and
arbitrarily specifying a point, which is to be used as a point for specifying a visual-point position, on said display screen of said display unit through a point specifying unit used for arbitrarily specifying said specified point and setting the visual-point position of said second visual point so as to make a specified-point corresponding point existing on said three-dimensional spatial image as a point corresponding to said specified point face said specified point, which is arbitrarily specified through said point specifying unit on said display screen of said display unit showing said first two-dimensional planar image.
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Specification