Cursor moving method for interactive formula and control device thereof
An interactive, cursor positioning technology, applied in the field of printing and typesetting, can solve the problems of lack of cursor positioning ability and inability to locate, and achieve the effect of improving ease of use and convenience
Inactive Publication Date: 2013-07-10
PEKING UNIV FOUNDER GRP CO LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the Tab key is only for switching areas, and does not have the ability to position the cursor. That is to say, it cannot locate a specific position in each editable area, and needs to use other direction keys to enter the editable area. a specific location of
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] In the present invention, the position of the cursor is mainly realized by the direction keys, the Tab key and the Home / End key on the keyboard, and the position of the cursor mainly includes left and right movement, up and down movement, Tab key movement and Home / End key movement. bit.
[0050]In the present invention, a formula is represented by a tree structure, and its root node represents the editing area of the root node of the formula, and its branching degree and degree are determined according to the number of operators and letter symbols in the formula. Specifically, according to the order of the formula from left to right, a tree structure is established in turn: for letters or numbers, directly as leaf nodes; for "+", "-", "×", "÷", "=", etc. Symbols are also directly used as leaf nodes; for other types of operators, a subtree is established for the operator, the parent node of the subtree represents the parent editing area of the operator, and its child...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a cursor moving method for an interactive formula, which comprises horizontal cursor moving, vertical cursor moving, Tab key moving and Home / End key moving. In the method, a position relationship between an operator and a letter character of the formula is described by a tree structure, and the cursor moving is realized according to the tree structure, wherein an editable area in which the cursor moves is customized in an editable area of the operator according to an access intention of a user. Correspondingly, the invention provides a cursor moving control device for an interactive formula, which comprises a horizontal cursor moving unit, a vertical cursor moving unit, a Tab key moving unit and a Home / End key moving unit. According to the invention, the cursor is quickly positioned in the editable area which the user wants to enter, and the usability, convenience and accuracy of interactive formula typesetting are improved.
Description
technical field [0001] The invention relates to the technical field of printing and typesetting, in particular to a method for moving the cursor of an interactive formula and a control device thereof. Background technique [0002] Interactive formula typesetting software is a commonly used formula typesetting method. However, since the formula itself is not a simple row structure, but a complex structural form, this leads to the limitation of the cursor's ability to move during the interactive formula editing process. Very restrictive. Specifically, the positional relationship between different parts in the formula is very complicated, and the traditional simple coordinate-first cursor positioning method often makes it impossible for users to clearly predict the next position that the cursor will enter, and it is difficult to enter the actual position. want to enter the position. Such cursor positioning ability cannot meet the requirements of convenient and fast typesettin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/033G06F3/0487G06F17/24
Inventor 赵志刚杨雷鸣
Owner PEKING UNIV FOUNDER GRP CO LTD