Invention Grant
US09207858B2 Method and apparatus for drawing and erasing calligraphic ink objects on a display surface
有权
用于在显示表面上绘制和擦除书法墨水物体的方法和装置
- Patent Title: Method and apparatus for drawing and erasing calligraphic ink objects on a display surface
- Patent Title (中): 用于在显示表面上绘制和擦除书法墨水物体的方法和装置
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Application No.: US12904599Application Date: 2010-10-14
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Publication No.: US09207858B2Publication Date: 2015-12-08
- Inventor: Viktor Antonyuk , Joseph Michael Goethals , Shymmon Banerjee
- Applicant: Viktor Antonyuk , Joseph Michael Goethals , Shymmon Banerjee
- Applicant Address: CA Calgary
- Assignee: SMART Technologies ULC
- Current Assignee: SMART Technologies ULC
- Current Assignee Address: CA Calgary
- Agency: Katten Muchin Rosenman LLP
- Main IPC: G06T11/20
- IPC: G06T11/20 ; G06F3/0488 ; G06K9/00 ; G06K9/22
Abstract:
A method of generating a calligraphic ink object, comprising sampling contact coordinates generated by a coordinate input device during writing thereon using a pointer to generate an ink trajectory generally representing the writing; generating an ink envelope, the ink envelope comprising line segments joining pointer instances at the sampled contact coordinates; generating a smoothed ink envelope at least by fitting curves to points on the ink envelope; and drawing the smoothed ink envelope on a display thereby to generate the calligraphic ink object.
Public/Granted literature
- US20110199297A1 METHOD AND APPARATUS FOR DRAWING AND ERASING CALLIGRAPHIC INK OBJECTS ON A DISPLAY SURFACE Public/Granted day:2011-08-18
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