| 摘要 |
An apparatus includes an obtaining unit that obtains time-series coordinate data on pointing input; a calculating unit that calculates a distance value from a coordinate position of any one of top, bottom, left, and right ends of an input handwriting to any point of handwriting portions, based on the obtained coordinate data; a display processing unit that performs a displaying process on the input handwriting based on a change in the distance value; and an erasing unit that calculates a stroke distance value between a coordinate position of a stroke of the input handwriting that is input on a time-series basis and a coordinate position of any one of the ends of the input handwriting, and when the stroke distance value is equal to or more than a predetermined value, erases a display of a handwriting that is input before the stroke of the input handwriting on a time-series basis. |
| 主权项 |
1. An information processing apparatus, comprising:
an obtaining unit that obtains time-series coordinate data on pointing input; a calculating unit that calculates a distance value from a coordinate position of any one of top, bottom, left, and right ends of an input handwriting to any point of handwriting portions, based on the obtained coordinate data; a display processing unit that performs a displaying process on the input handwriting based on a change in the distance value; an erasing unit that calculates a stroke distance value between a coordinate position of a stroke of the input handwriting that is input on a time-series basis and a coordinate position of any one of the top, bottom, left, and right ends of the input handwriting, and when the stroke distance value is equal to or more than a predetermined value, erases a display of a handwriting that is input before the stroke of the input handwriting on a time-series basis; and a display mode calculating unit that calculates degrees of change of display modes of input handwriting portions based on the distance value, wherein the display mode calculating unit determines the degrees of change of the display modes such that the display mode is not changed when the distance value is less than a first threshold value, and a transparency of display increases as a difference value between the distance value and the first threshold value increases when the distance value is equal to or more than the first threshold value, the display mode calculating unit calculates the degrees of change of the display modes based on the distance value, a handwriting width that is calculated based on a coordinate position of any one of the top, bottom, left, and right ends of the input handwriting and a coordinate position of an opposite end of the input handwriting in a vertical or horizontal direction, and positions of the input handwriting portions, and the display mode calculating unit has a function depending on the distance value and a function depending on coordinate positions of the input handwriting portions, when a condition that the coordinate position of any one of the top, bottom, left, and right ends of the input handwriting is equal to or more than a second threshold value and the handwriting width is equal to or more than a third threshold value is satisfied, determines a calculation value calculated by multiplying the function depending on the distance value by the function depending on the coordinate positions of the input handwriting portions as the degrees of change of the display modes of the input handwriting portions, and when the condition is not satisfied, determines the degrees of change of the display modes of the input handwriting portions based on the function depending on the distance value. |
