JP2997819B2 - Drawing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial application field >> The present invention relates to monitoring at the stage of drawing start when blocking drawing data out of a drawing region due to a relative relationship between a drawing start point and a drawing region. The present invention relates to a drawing apparatus that sets a clip to limit a drawing area to perform drawing.

<< Prior Art >> The conventional drawing apparatus sets a predetermined effective drawing area and guarantees the drawing quality of the drawing result regarding the drawing data in the effective drawing area. With respect to the drawing result of, the drawing quality was not guaranteed.

<< Problems to be Solved by the Invention >> In the conventional drawing apparatus described above, no consideration is given to the processing of drawing data beyond the drawing area, and there is a problem with respect to protection of drawing quality of drawing results and reduction of drawing processing time. there were.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a drawing area monitoring device capable of improving the drawing quality of a drawing result and shortening the drawing processing time.

<< Means for Solving the Problems >> In order to achieve the above object, the present invention provides a character expansion processing unit for expanding character data transferred from a host computer, and a graphic data transfer unit for processing graphic data transferred from the host computer. A graphic development processing section for performing development processing, an image development processing section for performing development processing of image data transferred from the host computer, and each of the character development processing section, the graphic development processing section, and the image development processing section A setting and storage of a drawing start point, a setting and storage of an effective drawing range, and a setting and storage of a clip, and an upper clip process, a lower clip process, Performs left clip processing and right clip processing, and renders the image developed by the character development processing unit, graphic development processing unit, or image development processing unit. A drawing area monitoring unit that performs masking on the image data, wherein the drawing area monitoring unit is configured such that the drawing start point is located above the upper boundary of the clip range, and When the drawing data is located in the first region to the left of the boundary, the drawing data is masked by the upper clip processing, the lower clip processing, the left clip processing, and the right clip processing, and the drawing start point is set. Is present in a second region above the upper boundary of the clip range, to the right of the left boundary of the clip range, and to the left of the right boundary of the clip range, By lower clip processing and the right clip processing, masking of the drawing data is performed, and the drawing start point is directed downward from an upper boundary of the clip range,
If the clip area is located above the lower boundary of the clip area and in a third area to the left of the left boundary of the clip area, the lower clip processing, the left clip processing, and the right clip processing The masking of the drawing data is performed, and the drawing start point is located below the upper boundary of the clip range, above the lower boundary of the clip range, rightward of the left boundary of the clip range, and When the drawing data is present in the fourth area to the left of the right boundary, the drawing data is masked by the lower clip processing and the right clip processing, and the drawing start point is set to the first area to the first area. In the case where the drawing data does not exist in any of the areas 4, the drawing data is skipped.

<< Operation >> In the present invention, the character expansion processing section performs expansion processing of character data transferred from the host computer, the graphic expansion processing section performs expansion processing of graphic data transferred from the host computer, and the image expansion processing section The image data transferred from the computer is expanded.

In addition, the drawing area monitoring function units provided in the character development processing unit, the graphic development processing unit, and the image development processing unit respectively set and store a drawing start point, and set and store an effective drawing range. In addition, set and store clips,
The set effective drawing range is masked using this set clip, and if the drawing start point is within this effective drawing range, the clip is monitored and the drawing start point is set to the effective drawing range. If it does not exist, it is possible to skip the drawing data beyond the clip position, and to mask the effective drawing range from the set clip from the position of the drawing start point at the drawing start stage. This is a device for selecting necessary clips and monitoring only necessary clips.

<< Example >> An example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a drawing apparatus including a drawing area monitoring unit according to the present invention.

In FIG. 1, the host computer 1 outputs character data 1a, graphic data 1b, and image data 1c to the drawing device 2.

In the drawing device 2 (2 BPC 32), a character development processing unit 2a, a graphic development processing unit 2b, and a image development processing unit that respectively perform development processing corresponding to various data such as the character data 1a, the graphic data 1b, and the image data 1c. It has a configuration divided into processing units 2c, and furthermore, each character development processing unit 2a, figure development processing unit 2b,
The image development processing unit 2c includes drawing area monitoring function units 2a1, 2b1, 2c
One is included. Reference numeral 4 denotes a drawn image drawn by the drawing device 2.

Drawing area monitoring function units 2a1, 2b1, 2c1 included in each character expansion processing unit 2a, figure expansion processing unit 2b, and image expansion processing unit 2c
Is further divided into the following four processing units.
(1) Upper clip processing unit 2 that monitors upward clips
U, (2) Lower clip processing unit 2 that monitors downward clips
D, (3) Left clip processing unit 2 that monitors clips in the left direction
L, (4) Right clip processing unit 2 that monitors clips in the right direction
R,

Next, the operation of each drawing area monitoring function unit will be described with reference to FIG. 2 together with the flowchart of FIG. As shown in FIG. 2, the coordinates (X _MIN , Y
_MIN ), 2 surrounded by the coordinates of the maximum position (X _MAX , Y _MAX )
The area represented by the dimension is set and stored by the drawing apparatus 2 as the effective drawing range 3.

For this effective drawing area 3, coordinates of the minimum position of the mask region _{3a (X L, Y U)} , the coordinates of the maximum position (X _R, Y _D)
Is set by the drawing apparatus 2. When performing this mask, in order to erase the drawing data outside the mask,
Clip settings are required. Thus, (i) upper clip = Y _U (ii) lower clip = Y _D (iii) left clip = _XL (iv) right clip = X _R , upper clip processor 2U, lower clip processor 2D, left Each clip is set and stored by the clip processing unit 2L and the right clip processing unit 2R.

The effective drawing area 3 is classified into nine areas A to i based on the set coordinates of the effective drawing area 3 and each clip value.

A = (X _MIN , Y _MIN ), area enclosed by ( _XL , Y _U ), B = (X _L , Y _MIN ), area enclosed by (X _R , Y _U ), C = (X _R , Y _MIN ), an area enclosed by (X _MAX , Y _U ), D = an area enclosed by (X _MIN , Y _U ), ( _XL , Y _D ), E = ( _XL , Y _U) ), (X _R, surrounded by Y _{D) regions, F = (X R, Y} U), (X MAX, regions surrounded by the _{Y D), G = (X} MIN, Y D), (X _L, a region surrounded by the _{Y MAX), H = (X} L, Y D), (X R, region surrounded by the _{Y MAX), i = (X} R, Y D), (X MAX, Y MAX ) Area.

Here, coordinates (drawing start point) (X _ST , Y _ST ) at which drawing is to be started in step 11 of the flowchart of FIG.
That is, a position expressed in two dimensions is input, and a step
At 12, it is determined which of the nine areas A to i belongs to. This determination is based on the relationship (X _MIN ≦ X _ST < _XL ) and (Y _MIN ≦ Y _ST <Y _U )
Region A.

Region B if (X _L ≦ X _ST <X _R ) and (Y _MIN ≦ Y _ST <Y _U ).

(X _R <X _ST ≤X _MAX ), (Y _MIN ≤Y _ST <Y _U )
Region C.

Region _D if the relationship (X _MIN ≦ X _ST < _XL ), (Y _U ≦ Y _ST ≦ Y _D ).

If the relationship is (X _L ≦ X _ST ≦ X _R ) or (Y _U ≦ Y _ST ≦ Y _D ), the area E is set.

If the relationship (X _R <X _ST ≤X _MAX ) or (Y _U ≤Y _ST ≤Y _D ), then the area F.

If (X _MIN ≦ X _ST < _XL ) and (Y _D <Y _ST ≦ Y _MAX ),
Region G.

If the relationship (X _L ≦ X _ST ≦ X _R ) or (Y _D <Y _ST ≦ Y _MAX ), then the region H.

_{(X R <X ST ≦ X} MAX), if the relationship of _{(Y D <Y ST ≦ Y} MAX),
Region i.

And

Here, the nine drawing areas A to
As a result of the determination of i, in step 13, the coordinates (X _ST ,
If Y _ST ) exists in the area A, the process proceeds to step 14, where the monitoring of the upper clip, the lower clip, the left clip, and the right clip is performed by the upper clip processing unit 2U, the lower clip processing unit 2D, and the left clip processing, respectively. The unit 2L and the right clip processing unit 2R perform drawing processing in the area of the mask in step 15,
An image 4 as shown in FIG. 1 is obtained.

In step 13, the coordinates (X _ST ,
If the coordinates of (Y _ST ) are not in the area A, the process branches from the NO side in step 13 and the process moves to step 16. In this step 16, the coordinates (X _ST , Y _ST ) of the drawing start point are stored in the area. If the coordinates (X _ST , Y _ST ) of the drawing start point are present in the area B, the process proceeds from the YES side of step 16 to step 17. Monitoring of the transition, upper clip, lower clip, right clip, respectively, upper clip processing unit 2U, lower clip processing unit 2L, right clip processing unit 2R
The drawing process in the mask area is performed in step 15, and the drawing process is performed in step 15.

If the coordinates (X _ST , Y _ST ) of the drawing start point do not exist in the area B in step 16, the drawing is performed in the same manner as in the processing for determining the area A in step 13 and the area B in step 16. It is determined whether or not the coordinates (X _ST , Y _ST ) of the start point are within the area C.

If the result of this determination is that there is no coordinate of the drawing start point in the area C, the process branches from the NO side of step 16 to step
The process moves to 18, and in this step 18, it is determined whether or not the coordinates (X _ST , Y _ST ) of the drawing start point exist in the area.

As a result of this determination, if the coordinates (X _ST , Y _ST ) of the drawing start point are present in the area D, the processing moves from the YES side of step 18 to step 19 to monitor the lower clip, the left clip, and the right clip. Are performed by the lower clip processing unit 2D, the left clip processing unit 2L, and the right clip processing unit 2R, respectively, and then the drawing process is performed in step 15.

If the coordinates (X _ST , Y _ST ) of the drawing start point do not exist in the area D in step 16, the process branches from the NO side in step 18, and the process proceeds to step 20. If it is determined that the coordinates (X _ST , Y _ST ) of the start point exist in the area E, the processing is skipped from the YES side in Step 20 and the processing moves to Step 21.

In step 21, monitoring of the lower clip and the right clip is performed by the lower clip processing unit 2D and the right clip processing unit, respectively.
Perform in 2R.

In step 20, the coordinates (X _ST , Y _ST ) of the drawing start point are set to the area E
If it is determined that the drawing start point does not exist, the coordinates (X _ST ,
Y _ST ) is determined as to whether or not the regions F, G, H, and i are sequentially present. If the drawing start point is any of these regions C, F, G, H, and i, the drawing process is performed. Is performed, in step 22, the drawing data is skipped (non-drawing).

In the monitoring of each clip, if the drawing position <upper clip, drawing position> lower clip, drawing position <left clip, drawing position> right clip, and so on, the drawing data is skipped (non-drawing). ).

<< Effect of the Invention >> According to the present invention, as described above, when masking the effective drawing range, the upper clip, the lower clip, the left clip, and the right clip are set, and these clips are used. The drawing is masked within the effective drawing range, and when the drawing position is outside the clip, it is configured to be non-drawing. Therefore, when the drawing start point is input, monitoring is performed from various clips. Since a clip to be selected can be selected, it is not necessary to perform useless clip monitoring during the drawing process, and the speed of the drawing process can be increased.

Further, by performing the clipping, the drawing quality for the drawing result is also improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a drawing apparatus according to an embodiment of the present invention, FIG. 2 is a schematic explanatory view for explaining a drawing area monitoring function by the drawing apparatus of the present invention, and FIG. 3 is a drawing apparatus of the present invention. Is a flowchart showing a flow of a drawing area monitoring function according to the first embodiment. DESCRIPTION OF SYMBOLS 1 ... Host computer, 2 ... Drawing apparatus, 2a ... Character development processing part, 2b ... Graphic development processing part, 2c ... Image development processing part, 2a1, 2b1, 2c1 ... Image area monitoring function part, 2U ... upper clip processing unit, 2D ... lower clip processing unit, 2L ... left clip processing unit, 2R ... right clip processing unit, 3 ... effective drawing range, 4 ... drawn image.

Claims (1)

(57) [Claims] A character expansion processor for expanding character data transferred from the host computer; a graphic expansion processor for expanding graphic data transferred from the host computer; and a character expansion processor transferred from the host computer. An image development processing unit for performing image data development processing, and a drawing area monitoring unit included in each of the character development processing unit, the graphic development processing unit, and the image development processing unit. And the setting and storage of the effective drawing range, and the setting and storage of the clip, and performs the upper clip processing, the lower clip processing, the left clip processing, and the right clip processing by the set clip. A drawing area monitoring unit that masks the drawing data developed by the graphic development processing unit or the image development processing unit. In the drawing device, when the drawing start point is located in a first region above the upper boundary of the clip range and leftward from the left boundary of the clip range, The drawing data is masked by the upper clip processing, the lower clip processing, the left clip processing, and the right clip processing, and the drawing start point is located above the upper boundary of the clip range, and the left of the clip range. When the drawing data exists in the second region to the right of the boundary and to the left of the right boundary of the clip range, the upper clipping process, the lower clipping process, and the right clipping process mask the drawing data. Performing a cliff, wherein the drawing start point is below the upper boundary of the clip range, above the lower boundary of the clip range, and the left boundary of the clip range. If it is located in the third region in the left direction, the lower clip processing, the left clip processing, and the right clip processing perform masking of the drawing data, and the drawing start point is within the clip range. If the fourth region exists below the upper boundary, above the lower boundary of the clip range, to the right of the left boundary of the clip range, and to the left of the right boundary of the clip range, The lower clip processing and the right clip processing mask the drawing data. If the drawing start point does not exist in any of the first to fourth areas, the drawing data is read. A drawing device characterized by skipping.