JP2013191225A - Graphics drawing editing system, graphics drawing editing device, graphics drawing editing method and program - Google Patents

Abstract

A graphics drawing editing system, a graphics drawing editing device, a graphics drawing editing method, and the like that can simplify a user's operation when transforming a graphics object.
In step S108, a user drags a part of a straight line object with a pen. Then, a curve reflecting the pen displacement, the viscosity attribute, and the sharpness attribute in the drag operation is created. The “viscous attribute” is an attribute indicating how much the line around the dragged position approaches the moved position, and the “sharpness attribute” is an attribute indicating the curvature of the dragged position. These attributes are set in steps S105 and S106. This curve is then displayed on the screen.
[Selection] Figure 3

Description

  The present invention relates to a figure drawing / editing system, a figure drawing / editing apparatus, a figure drawing / editing method, and a program for executing deformation of a figure object.

  Some graphic drawing editing systems arrange graphic objects, set each object, and execute a drawing program for editing in units of objects. Some of such drawing programs create a curve by adding a curve control point such as a Bezier curve to a straight line and a curve. In such a drawing program, first, a line is created, then curve control points are added, and a curve representing the influence of each curve control point is set to draw a curve.

  In addition, as a device for creating a curve along the shape of a graphic object such as a circle or ellipse, the end of one side of the straight line is fixed, and the other end is dragged and moved so as to surround the graphic object. An apparatus for creating a curved line is known (Patent Document 1). According to this apparatus, when the target curve is a part of an existing graphic object, the curve can be created with a few procedures.

JP 2002-63586 A

  However, in a drawing program in which a curve control point is added and the curve control point weight is set and the curve is drawn, the relationship between the position of the curve control point and the curve portion is complicated, so the user cannot set the target curve. It takes a lot of input work to create. In addition, in order to create a curve having a plurality of bending points such as wavy lines, it is necessary to perform operations by adding control points correspondingly, and the user also performs many input operations in this respect. There is a need.

  Further, in the apparatus described in Patent Document 1, since a curve is created so as to be in contact with a graphic object, if there is no graphic object that can be used for the target curve, it is necessary to use a large number of graphic objects, and there are many users. It is necessary to perform the input work. Also, when bending the central part of the curve once created, it is necessary to set a fixed end of the figure and drag it so as to surround the figure object along the other side, so that the moving distance of the drag becomes large.

  An object of the present invention is to provide a graphic drawing editing system, a graphic drawing editing apparatus, a graphic drawing editing method, and the like that can simplify a user's operation when deforming a graphic object.

  As a result of intensive studies to solve the above problems, the present inventor has come up with various aspects of the invention described below.

  The graphic drawing editing system according to the present invention includes a drawing means for drawing a graphic object, and a fixed point for designating a part of a line constituting the graphic object drawn by the drawing means and fixing the position thereof A designation means; a change position designation means for designating a position before and after a change of an arbitrary point of the graphic object; and an attribute of deformation of the graphic object associated with a change in the position of the arbitrary point. Attribute designation means for designating the sharpness after deformation of a line constituting the graphic object, and when the position before change and the position after change are designated by the position designation means, each position and the attribute designation means Deformation means for deforming the graphic object based on the attribute specified by the step, wherein the deformation means is designated with a position before the change and a position after the change. When said fixed point of the graphic object by a fixed point designation unit is not specified, and wherein the deforming the graphic object defines a fixed point specific position of the graphic object.

  The graphic drawing editing method according to the present invention includes a drawing step for drawing a graphic object, and a fixed point for specifying a point that fixes a position of a part of a line constituting the graphic object drawn by the drawing step. A designating step, a change position designating step for designating a position before deformation and a post-deformation position of an arbitrary point of the graphic object, and the deformation attribute of the graphic object according to a change in the position of the arbitrary point In the attribute designation step for designating the sharpness after deformation of the line constituting the graphic object, and each position before and after the transformation in the position designation step, the position designated in the attribute and the attribute designated in the attribute designation step A deformation step for deforming the graphic object, and the deformation step is performed before the change. When the position of the graphic object is specified and the fixed point of the graphic object is not specified in the fixed point specifying step, the specific position of the graphic object is determined as a fixed point and the graphic object is deformed. It is characterized by.

  According to the present invention, if a modification attribute of a graphic object is designated, the graphic object can be deformed only by designating a position before and after the deformation of an arbitrary point by a drag operation or the like. That is, it is possible to simplify the user's operation when the graphic object is deformed.

It is a figure which shows the figure drawing edit system which concerns on embodiment of this invention. It is a block diagram which shows the function structure of the figure drawing edit system which concerns on embodiment of this invention. It is a flowchart which shows operation | movement of the figure drawing edit system which concerns on embodiment of this invention. It is a figure which shows the state in operation | movement of the figure drawing edit system which concerns on embodiment of this invention. It is a figure which shows an example of the influence which acts on the straight line object of a viscosity attribute and a sharp attribute. It is a figure which shows an example of dispersion | distribution (sigma) by the combination of sharpness and viscosity. It is a figure which shows the example which draws a rectification waveform. It is a figure which shows the example which draws an attenuation | damping waveform. It is a figure which shows the other structure of a figure drawing edit system.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. FIG. 1 is a diagram showing a graphic drawing editing system according to an embodiment of the present invention. FIG. 2 is a block diagram showing a functional configuration of the graphic drawing editing system according to the embodiment of the present invention.

  A display 101 is a device that executes the graphic drawing editing system. The display 101 includes a CPU 201, a ROM 202, a RAM 203, a video display unit 204, a pen coordinate detection unit 205, and a button information reception unit 206.

  The video display unit 204 includes a display panel, and displays video data to be displayed on the screen 102 according to an instruction from the CPU 201. The pen coordinate detection unit 205 has a digitizer function and detects the position of the pen 103 on the screen 102. The pen coordinate detection unit 205 detects the position of the pen 103 by, for example, irradiating light from the top of the screen 102 and monitoring how the light is blocked. Further, the position of the pen 103 and its tip may be detected electromagnetically or electrostatically. The button information receiving unit 206 receives button information of the pen 103 transmitted from the pen 103 using infrared rays. Here, the button information is information indicating that a pen tip button provided at the tip of the pen 103 is pressed. That is, the button information is information indicating whether or not the pen 103 is pressed against the screen 102 and is in an operating state. The CPU 201 controls the operation of the entire display 101 according to a control program stored in the ROM 202, and performs input / output control and data processing of various data. The ROM 202 stores a control program and various data. The RAM 203 is used as a work area when the control program is executed by the CPU 201, and temporarily stores various calculation results and coordinate data.

  Here, the pen 103 will be described. A pressure sensor that also serves as a switch is provided at the tip of the pen 103, and electrical operation is possible while the pen 103 is pressed against the screen 102. While the switch 103 is on, the pen 103 continues to transmit button information to the display 101 using infrared rays.

  Next, an operation of deforming an object (execution operation of the object deformation method) by the graphic drawing editing system configured as described above will be described. FIG. 3 is a flowchart showing the operation of the graphic drawing editing system. Note that a program for executing this processing is stored in the ROM 202 and executed under the control of the CPU 201.

  First, the CPU 201 creates a graphic object in step S101. That is, the CPU 201 creates a graphic object based on the operation of the pen 103 by the user. For example, as shown in FIG. 4A, when the user selects a straight line drawing mode and moves the pen 103 against the screen 102 (hereinafter referred to as “drag”), a straight line object is created as a graphic object. The The video display unit 204 displays the straight line object on the screen 102. Note that the term “straight line” as used herein refers strictly to a “finite straight line (line segment)”.

  Next, in step S102, the CPU 201 determines whether or not to designate a location to be fixed on the graphic object. If so, the CPU 201 designates the location to be fixed in step S105 and proceeds to step S103. The determination as to whether or not to specify the location to be fixed is performed based on, for example, information input by the user (information on selection of a mode for specifying the location to be fixed). In step S105, for example, as shown in FIG. 4B, when the user sequentially designates both ends of the straight line object with the pen 103 as places to be fixed in the straight line object, the CPU 201 uses these as fixed point designation means. Specify both end points of as fixed points. By this operation, for example, both ends of the straight line object are fixed and cannot move. Note that if the CPU 201 does not designate a location to be fixed in step S102, the CPU 201 proceeds to step S103 as it is.

  In step S103, the CPU 201 determines whether or not to change the viscosity attribute of the graphic object, and if so, sets the viscosity attribute of the graphic object in step S106 and proceeds to step S104. The determination of whether or not to change the viscosity attribute is performed based on, for example, information input by the user. Since the viscosity attribute is expressed by a numerical value, for example, the graphic object does not change as shown in FIG. The “viscous attribute” is an attribute that indicates how close a predetermined position on the object (position before the change) is to the position after the change specified by dragging. Indicates the viscosity of the line when it is regarded as a viscous body. As shown in FIG. 5, when the viscosity attribute is increased, the line away from the changed position is also moved in the dragged direction, resulting in a curve with a small curvature, while when the viscosity attribute is decreased, the line is changed. Only the vicinity of the position is deformed, and a curve with a large curvature is obtained. Note that the deformation of the graphic object is determined by a normal distribution centered on the drag position, for example, as shown in Equation 1 below.

  In the example shown in FIG. 5, the sharpness is 1.5, the viscosity is 0.6, the drag start position is 0.0, and the distance is 1.0. The sharpness will be described later. In addition to this, as shown in FIG. 6, the value of the dispersion σ can be changed by combining sharpness and viscosity, and various deformations can be performed.

  When the viscosity attribute is input by the user, the CPU 201 designates a viscosity attribute that is one type of attribute as attribute designation means. If the viscosity attribute is not to be changed in step S103, the CPU 201 proceeds to step S104 as it is without performing the process of step S106.

  In step S104, the CPU 201 determines whether or not to change the sharpness attribute of the deformation tool, and if so, sets the sharpness attribute of the deformation tool in step S107, and proceeds to step S108. The determination as to whether or not to change the sharpness attribute is made based on, for example, information input by the user (information for selecting a predetermined deformation mode). As shown in FIG. 4D, when the hammer icon is selected as the change tool for shifting to the predetermined deformation mode, when this hammer icon is selected, the CPU 201 proceeds to step S107. Since the sharpness attribute is expressed by a numerical value, for example, the graphic object itself does not change as shown in FIG. Note that the “sharpness attribute” is an attribute indicating the curvature of the dragged position, and indicates the sharpness after deformation of the line constituting the graphic object. As shown in FIG. 5, when the sharpness attribute is increased, the curvature increases and becomes a sharp curve, whereas when the sharpness attribute is decreased, the curvature decreases and the curve becomes a gentle curve. When the sharpness attribute is input by the user, the CPU 201 designates a sharpness attribute that is one type of attribute as attribute designation means. If the sharpness attribute is not to be changed in step S104, the CPU 201 proceeds to step S108 as it is without performing the process of step S107.

  In step S108, the CPU 201 causes the user to drag an arbitrary point of the straight line object with the pen 103 as shown in FIG. As a result, the CPU 201 designates the position before and after the deformation of the arbitrary point (the position before and after the deformation) as the change position designation means. Then, the CPU 201 adds a drag start point in this drag operation as a control point, and a curve reflecting the displacement amount, the viscosity attribute, and the sharpness attribute of the pen 103 around the control point is shown in FIG. Create as shown. This curve is displayed on the screen 102 by the video display unit 204. In step S102, if a fixed point is not designated, a specific point of the graphic object may be determined as a fixed point to create a curve. Examples of such specific points include both end points of the straight line object and points separated by a specific distance from the point where dragging is started. What point is set as the fixed point may be set by default or may be specified by the user in advance.

  Thereafter, in step S109, the CPU 201 determines whether or not to continue deformation. If the deformation is to be continued, the CPU 201 proceeds to step S101. The determination as to whether or not to continue the change is made based on, for example, information input by the user.

  According to such a graphic drawing system, a complicated curve can be created with a small amount of input work.

  Here, FIG. 7 shows an example of drawing a rectified waveform. First, as shown in FIG. 7A, a straight line is drawn (step S101). Next, as shown in FIG. 7B, a point to be fixed is designated (steps S102 to S105). Thereafter, as shown in FIG. 7C, the portion to be waved is dragged (steps S103 to S108). Subsequently, as shown in FIG. 7D, another portion to be waved is dragged (steps S109 to S108). Then, by repeating these steps, a rectified waveform is completed as shown in FIG.

  When such a rectified waveform is described using control points using Bezier curves, it is necessary to correct the weights of the control points for the respective control points. On the other hand, according to this embodiment shown in FIG. 7, a rectified waveform can be drawn with a small amount of work.

  FIG. 8 shows an example of drawing an attenuation waveform. First, as shown in FIG. 8A, a straight line is drawn (step S101). Next, as shown in FIG. 8B, a point to be fixed is designated (steps S102 to S105). Thereafter, as shown in FIG. 8C, the portion to be waved is dragged (steps S103 to S108). Subsequently, as shown in FIG. 8D, another portion to be waved is dragged (steps S109 to S108). Then, by repeating these steps, an attenuation waveform is completed as shown in FIG.

  Even when such an attenuation waveform is described using control points using Bezier curves, it is necessary to correct the weights of the control points for the respective control points. On the other hand, according to this embodiment shown in FIG. 8, the attenuation waveform can be drawn with a small amount of work.

  As in these examples, after selecting a combination of parabolas and dragging and deforming a part of a straight line object, a parabolic curve object can be created. As a result, a curve expressed by a complicated expression can be drawn with a small number of input operations.

  The graphic object to be deformed is not limited to a straight line object, and a curved object, a closed curve object, or the like may be used as a deformable graphic object.

  Further, instead of setting the viscosity attribute of the graphic object after the graphic object is created, the graphic object having the viscosity attribute may be created after setting the viscosity attribute.

  In the above-described embodiment, the sharpness attribute is set after setting the deformation mode. However, one or more icons are prepared in addition to the hammer icon, and a different sharpness attribute is set for each icon. Alternatively, the sharpness attribute may be set simultaneously with the designation of the icon. Moreover, you may deform | transform an icon with the change of a sharp attribute.

  Further, the drag speed may be taken into account when creating the curve. That is, a curve may be created based on the displacement amount and speed in the drag operation, the viscosity attribute, and the sharpness attribute. In this case, for example, for a straight line, the viscosity is decreased if the drag operation is fast and the viscosity is increased if the drag operation is slow while the viscosity attribute and the sharpness attribute are not yet determined. By considering the speed of dragging, the extent and depth of deformation may be affected. Furthermore, a straight object may be regarded as a beam, and a deflection curve may be obtained from the rigidity of the beam as a result of applying a load to the beam, and the figure object may be deformed. It may be a deformation of the graphic object.

  The viscosity attribute and the sharpness attribute may be set in advance for each type of curve created by dragging, instead of setting the viscosity attribute and the sharpness attribute based on external input information. For example, if the curve created by dragging is a parabola, part of an ellipse, part of a sine curve, etc., the combination of the viscosity attribute, sharpness attribute, and speed attribute of these curves is preset for each type. You may keep it.

  A curve in a three-dimensional space may be created. Furthermore, in a three-dimensional space, not only a curve but also a curved surface may be created by dragging a part of a plane.

In the graphic drawing editing system of the above-described embodiment, the display 101 includes a coordinate input function, a button information receiving unit, and a drawing editing program. However, the present invention can be implemented in other forms. For example, as shown in FIG. 9, a graphic drawing editing system may be constructed by connecting a display 401 and a personal computer (hereinafter referred to as “PC”) 402. In such a graphic drawing editing system, the user transmits coordinate information and button information to the PC 402 using a coordinate input device such as a mouse 403, the PC 402 executes a drawing editing program, and the display 401 displays the result.

  The embodiment of the present invention can be realized by, for example, a computer executing a program. Also, means for supplying a program to a computer, for example, a computer-readable recording medium such as a CD-ROM recording such a program, or a transmission medium such as the Internet for transmitting such a program is also applied as an embodiment of the present invention. Can do. The above program can also be applied as an embodiment of the present invention. The above program, recording medium, transmission medium, and program product are included in the scope of the present invention.

101: Display 102: Screen 103: Pen 201: CPU
202: ROM
203: RAM
204: Video display unit 205: Pen coordinate detection unit 206: Button information reception unit

Claims (8)

A drawing means for drawing a graphic object;
A fixed point designating unit for designating a point that is a part of a line constituting the graphic object drawn by the drawing unit and that fixes the position;
A change position specifying means for specifying a position before and after a change of an arbitrary point of the graphic object;
Attribute designating means for designating the post-deformation sharpness of a line constituting the graphic object as an attribute of deformation of the graphic object accompanying a change in the position of the arbitrary point;
Deformation means for deforming the graphic object based on each position and the attribute designated by the attribute designation means when the position before change and the position after change are designated by the change position designation means; ,
Have
The deforming means determines a specific position of the graphic object as a fixed point when a position before the change and a position after the change are specified and the fixed point of the graphic object is not specified by the fixed point specifying means. A graphic drawing editing system characterized by deforming the graphic object.   2. The graphic drawing editing system according to claim 1, wherein the deformation attribute of the graphic object includes a viscosity of the line when the line constituting the graphic object is regarded as a viscous body.   The graphic drawing editing system according to claim 1, wherein the deformation attribute of the graphic object includes a deformation speed of the graphic object.   The graphic drawing editing system according to claim 1, further comprising a changing unit that changes a deformation attribute of the graphic object.   5. The graphic drawing editing system according to claim 1, wherein the deforming unit deforms the graphic object by adding a control point based on a deformation attribute of the graphic object. 6. A drawing means for drawing a graphic object;
A fixed point designating unit for designating a point that is a part of a line constituting the graphic object drawn by the drawing unit and that fixes the position;
A change position specifying means for specifying a position before and after a change of an arbitrary point of the graphic object;
Attribute designating means for designating the post-deformation sharpness of a line constituting the graphic object as an attribute of deformation of the graphic object accompanying a change in the position of the arbitrary point;
Deformation means for deforming the graphic object based on each position and the attribute designated by the attribute designation means when the position before change and the position after change are designated by the change position designation means; ,
Have
The deforming means determines a specific position of the graphic object as a fixed point when a position before the change and a position after the change are specified and the fixed point of the graphic object is not specified by the fixed point specifying means. A graphic drawing editing apparatus characterized by deforming the graphic object. A drawing step for drawing a graphic object;
A fixed point designating step for designating a point that is a part of a line constituting the graphic object drawn by the drawing step and that fixes the position;
A change position designation step for designating a position before deformation and a position after deformation of an arbitrary point of the graphic object;
An attribute designating step of designating the post-deformation sharpness of the lines constituting the graphic object as an attribute of deformation of the graphic object accompanying a change in the position of the arbitrary point;
When each position before and after the deformation is specified in the change position specifying step, a deformation step for deforming the graphic object based on the position and the attribute specified in the attribute specifying step;
Have
In the transformation step, when a position before the change and a position after the change are specified, and a fixed point of the graphic object is not specified in the fixed point specifying step, a specific position of the graphic object is determined as a fixed point. A graphic drawing editing method characterized by deforming the graphic object. On the computer,
A drawing step for drawing a graphic object;
A fixed point designating step for designating a point that is a part of a line constituting the graphic object drawn by the drawing step and that fixes the position;
A change position designation step for designating a position before deformation and a position after deformation of an arbitrary point of the graphic object;
An attribute designating step of designating the post-deformation sharpness of the lines constituting the graphic object as an attribute of deformation of the graphic object accompanying a change in the position of the arbitrary point;
When each position before and after the deformation is specified in the change position specifying step, a deformation step for deforming the graphic object based on the position and the attribute specified in the attribute specifying step;
And execute
In the transformation step, when a position before the change and a position after the change are specified, and a fixed point of the graphic object is not specified in the fixed point specifying step, a specific position of the graphic object is determined as a fixed point. A program characterized by deforming the graphic object.

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