TRACE INFORMATION PROCESSING DEVICE, TRACE INFORMATION PROCESSING METHOD, INFORMATION RECORDING MEDIUM, AND PROGRAM
First Claim
1. A trajectory information processing device (201) comprising:
- an input receiving unit (202) which receives input of coordinate information of a trajectory;
a closed curve acquisition unit (203) which repeatedly performs the followings for coordinate information of a trajectory whose input was received;
(a) acquiring a closed curve wherein the trajectory crosses over the trajectory for the first time after its starting point; and
(b) removing the closed curve and the preceding curve from the trajectory, and making the crossover point as the new starting point; and
a vortex information outputting unit (204) which outputs changes in the time interval at which said closed curves are acquired as information indicating the intensity of vortex motion of the trajectory.
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Accused Products
Abstract
In a trajectory information processing device (201) for acquiring from a trajectory of a spiral-shaped graphic easy for a person to enter the input information intended by the person, an input receiving unit (202) receives input of coordinate information of a trajectory, a closed curve acquisition unit (203) repeatedly acquires a closed curve wherein the trajectory crosses over the trajectory for the first time after the starting point and removes from the trajectory the closed curve and the curve preceding thereto for the coordinate information of a trajectory whose input was received, and a vortex information outputting unit (204) outputs changes in the time interval at which closed curves are acquired as information indicating the intensity of the vortex motion of the trajectory.
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Citations
9 Claims
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1. A trajectory information processing device (201) comprising:
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an input receiving unit (202) which receives input of coordinate information of a trajectory; a closed curve acquisition unit (203) which repeatedly performs the followings for coordinate information of a trajectory whose input was received; (a) acquiring a closed curve wherein the trajectory crosses over the trajectory for the first time after its starting point; and (b) removing the closed curve and the preceding curve from the trajectory, and making the crossover point as the new starting point; and a vortex information outputting unit (204) which outputs changes in the time interval at which said closed curves are acquired as information indicating the intensity of vortex motion of the trajectory.
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2. A trajectory information processing device (201) comprising:
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an input receiving unit (202) which receives input of coordinate information of points included in a continued trajectory by a user in the order in which the trajectory is drawn; a coordinate storage unit which, upon receipt of input of said coordinate information, stores the input coordinate information which was received in the order the input was received; a closed curve storage unit which stores closed curve information; a closed curve acquisition unit (203) which repeatedly performs the following; when the coordinate information whose input was received is newly stored in said storage unit, determines whether or not one of the line segments that connects adjacently stored coordinate information other than the newly stored coordinate information from among the sequentially stored coordinate information, and the line segment that connects the newly stored coordinate information and the coordinate information stored immediately before the newly stored coordinate information cross over each other and, if so; (a) newly stores the closed curve information which specifies the current time as the time at which the closed curve was acquired in said closed curve storage unit; and (b) removes coordinate information stored prior to the newly stored coordinate information from said coordinate storage unit, and inserting the coordinate information of the point of the crossover immediately before the newly stored coordinate information so as to update said coordinate storage unit; and a vortex information outputting unit (204) which, when closed curve information is newly stored in said closed curve storage unit, calculates the time interval between the time at which the closed curve specified in the newly stored closed curve information is acquired and the time at which the closed curve specified in the closed curve information stored immediately before said newly stored closed curve information is acquired, and outputs a numeric value associated in advance with the calculated time interval as parameter information specified by the user. - View Dependent Claims (3, 4, 5, 6)
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7. A trajectory information processing method comprising:
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an input receiving step of receiving input of coordinate information of a trajectory; a closed curve acquisition step of repeatedly performing the followings for coordinate information of a trajectory whose input was received; (a) acquiring a closed curve wherein the trajectory crosses over the trajectory for the first time after its starting point; and (b) removing the closed curve and the curve preceding thereto from the trajectory, and making the crossover point as the new starting point; and a vortex information outputting step of outputting changes in the time interval at which said closed curves are acquired as information indicating the intensity of the vortex motion of the trajectory.
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8. A computer-readable information recording medium storing a program for controlling a computer to function as:
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an input receiving unit (202) which receives input of coordinate information of a trajectory; a closed curve acquisition unit (203) which repeatedly performs the followings for coordinate information of a trajectory whose input was received; (a) acquires a closed curve wherein the trajectory crosses over the trajectory for the first time after its starting point; and (b) removes the closed curve and the curve preceding thereto from the trajectory, and making the crossover point as the new starting point; and a vortex information outputting unit (204) which outputs changes in the time interval at which said closed curves are acquired as information indicating the intensity of the vortex motion of the trajectory.
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9. A program for controlling a computer to function as:
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an input receiving unit (202) which receives input of coordinate information of a trajectory; a closed curve acquisition unit (203) which repeatedly performs the followings for coordinate information of a trajectory whose input was received; (a) acquires a closed curve wherein the trajectory crosses over the trajectory for the first time after its starting point; and (b) removes the closed curve and the curve preceding thereto from the trajectory, and making the crossover point as the new starting point; and a vortex information outputting unit (204) which outputs changes in the time interval at which said closed curves are acquired as information indicating the intensity of the vortex motion of the trajectory.
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Specification