An auxiliary tool for drawing stereoscopic views

Abstract

The present invention discloses an auxiliary tool for drawing a stereoscopic view, comprising a main ruler, a secondary ruler, a main ruler fixing plate, an auxiliary line simulation soft ruler, a pin shaft, and an elastic element. The main ruler of the stereoscopic view drawing auxiliary tool can be fixed to an appropriate position on a drawing board by the main ruler fixing plate, the secondary ruler can be moved on the main ruler, and the auxiliary line simulation soft ruler is fixed on the secondary ruler. The function of the present invention is to enable novice painters to quickly and accurately draw auxiliary lines of a stereoscopic perspective view, and on this basis, to quickly master the skill of freehand drawing of auxiliary lines.

Description

Technical Field

[0001] The present invention relates to an auxiliary tool for drawing a stereoscopic view, in particular to an auxiliary tool for drawing a stereoscopic perspective view. Background Art

[0002] In social life, people often need to practice drawing three-dimensional views, especially perspective views, when learning and practicing freehand drawing.

[0003] Perspective drawing establishes a projective relationship between the observer (the artist), the object (scenery), and the drawing. Assuming the observer (the artist) stands in a fixed position, there is a drawing between them. In this case, each line of sight from the observer's (the artist's) viewpoint to a part of the object (scenery) intersects the drawing. The collection of these intersections constitutes the perspective drawing. Therefore, drawing a perspective drawing involves finding key points on the drawing according to certain rules and then connecting them to form a graph. In this case, the drawing paper is equivalent to the drawing. Strict perspective drawing requires determining the location of the vanishing point and the metrical aspects of the drawing according to the rules of perspective drawing. However, freehand drawing does not require strict adherence to these rules. The vanishing point position and the direction and dimensions of auxiliary lines can be determined by hand on the drawing paper through visual inspection, as long as they roughly conform to the rules of perspective drawing. Strict perspective drawing methods are detailed in many books, such as "Practical Stereoscopic Drawing Methods," published by the Machinery Industry Press in December 1997. Therefore, this knowledge is common knowledge and will not be discussed in detail here.

[0004] When practicing perspective drawing, it's often necessary to draw auxiliary lines on the drawing paper to help the artist establish the correct perspective relationship on the drawing paper and then complete the drawing. However, beginners, due to their lack of drawing skills, often cannot accurately draw auxiliary lines freehand, especially auxiliary lines that converge at the vanishing point. This problem is more obvious if there are many auxiliary lines converging at the vanishing point, which in turn affects the subsequent drawing or drawing. To clarify, the auxiliary lines that converge at the vanishing point here are the straight lines that extend from the outline of the drawn object to the vanishing point. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an auxiliary tool that is easy to use, has intuitive effects and is easy to carry, so that novice painters can draw auxiliary lines quickly and accurately, and on this basis master the freehand drawing skills of auxiliary lines as soon as possible.

[0006] To solve the above technical problems, the auxiliary tool of the present invention may include a main ruler 101, a secondary ruler 102, a main ruler fixing splint 103, an auxiliary line simulating soft ruler 104, a pin 105, and an elastic element 106.

[0007] The main ruler 101 of the stereoscopic view drawing auxiliary tool can be fixed to an appropriate position of the drawing board through a main ruler fixing clamp 103, the secondary ruler 102 can move on the main ruler 101, and one end of the auxiliary line simulation soft ruler 104 is fixed on the secondary ruler 102.

[0008] The main ruler 101 of the stereoscopic view drawing auxiliary tool may have a mark indicating the length unit.

[0009] The secondary ruler 102 of the stereoscopic view drawing auxiliary tool may have a mark indicating the angle unit.

[0010] The auxiliary line simulation ruler 104 of the stereoscopic view drawing auxiliary tool may have a mark indicating the length unit.

[0011] The main ruler 101 of the stereoscopic view drawing auxiliary tool can be equipped with two auxiliary rulers 102, and the two auxiliary line simulation soft rulers 104 can be fixed on the two auxiliary rulers 102 respectively.

[0012] The main ruler 101 of the stereoscopic drawing auxiliary tool can be equipped with two auxiliary rulers 102, and the two ends of the auxiliary line simulation soft ruler 104 can be fixed on the two auxiliary rulers 102 respectively.

[0013] The main ruler 101, the auxiliary ruler 102, and the auxiliary line simulation ruler 104 of the three-dimensional view drawing auxiliary tool can be made of transparent non-metallic materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 .It is the front view of the stereoscopic view drawing auxiliary tool.

[0016] Figure 2 .yes Figure 1 Left view of the Stereoscopic Drawing Aid shown

[0017] Figure 3 .yes Figure 1 The stereo view drawing aid tool stereo view shown.

[0018] Figure 4 .yes Figure 1 The stereoscopic view drawing aid tool shows a stereoscopic view of the main ruler.

[0019] Figure 5 . is observed from another direction Figure 4 The stereoscopic view drawing aid tool shows a stereoscopic view of the main ruler.

[0020] Figure 6 .yes Figure 1 The stereoscopic view shown is a stereoscopic view of the main scale fixing splint of the drawing auxiliary tool.

[0021] Figure 7 .yes Figure 1 A stereoscopic view of the secondary ruler of the stereoscopic view drawing aid tool is shown.

[0022] Figure 8 . is observed from another direction Figure 7 A stereoscopic view of the secondary ruler of the stereoscopic view drawing aid tool is shown.

[0023] Figure 9 .yes Figure 1 The stereoscopic view shown is a stereoscopic view of the elastic element of the auxiliary tool.

[0024] Figure 10 .It is the main view of a three-dimensional drawing auxiliary tool with two movable sub-rules on the main ruler, and auxiliary lines are fixed on the two movable sub-rules to simulate soft rulers.

[0025] Figure 11 .yes Figure 10 The main ruler shown has two movable sub-rules, and auxiliary lines are fixed on the two movable sub-rules to simulate the three-dimensional view of the soft ruler and the three-dimensional view of the auxiliary tool.

[0026] Figure 12 .It is a stereoscopic drawing auxiliary tool with two movable sub-rules on the main ruler and an auxiliary line simulating a soft ruler with both ends fixed in the through holes on the sub-rules.

[0027] Figure 13 .It is a three-dimensional diagram installed on the drawing board as an auxiliary tool for drawing three-dimensional views.

[0028] The following table is used to confirm the correspondence between the component names and component features in the drawings and the reference numerals.

[0029] DETAILED DESCRIPTION

[0030] To better understand the present invention, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. It should be noted that the auxiliary line simulated tape measure 104 is a soft, linear object that is manually stretched and straightened by the artist during use. In the drawings of this specification, it is drawn as a straight line for ease of illustration and simplicity.

[0031] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,, Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 .

[0032] The main ruler 101 of the stereoscopic drawing aid has a long groove 201 formed on it, a long through slot 202 formed at the bottom of the long groove 201, a lug 203 formed on one side of the main ruler 101, and a hole 204 formed on the lug 203.

[0033] The auxiliary ruler 102 of the stereoscopic view drawing auxiliary tool has a through hole 205 and a boss 206 on it.

[0034] A lug 207 is provided on the main scale fixing plate 103 of the stereoscopic view drawing auxiliary tool, and a through hole 208 is provided on the lug 207 .

[0035] The hole 204 on the main scale 101 is aligned with the hole 208 on the main scale fixing plate 103 and the spiral center of the elastic element 106. The pin 105 passes through the hole 204 on the main scale 101, the hole 208 on the main scale fixing plate 103, and the spiral center of the elastic element 106, connecting the main scale 101, the main scale fixing plate 103, and the elastic element 106 together via the pin 105.

[0036] The movable secondary ruler 102 is installed in the long groove 201 on the main ruler 101, and the movable secondary ruler 102 can slide in the long groove 201. One end of the auxiliary line simulated soft ruler 104 is fixedly installed in the through hole 205 on the secondary ruler 102. Specifically, the diameter of the auxiliary line simulated soft ruler 104 is slightly larger than the inner diameter of the through hole 205 on the secondary ruler 102, and an interference fit is adopted to achieve the purpose of fixed installation.

[0037] When the secondary ruler 102 moves in the long groove 201 on the main ruler 101, it is obvious that the center point of the through hole 205 of the secondary ruler 102 moves along with it. At this time, the center point of the through hole 205 of the secondary ruler 102 forms a motion trajectory, which is a straight line trajectory.

[0038] During specific use, the main ruler 101 is first positioned appropriately on the drawing board, and the stereoscopic drawing aid is then mounted appropriately on the drawing board using the main ruler fixing plate 103. The principle for determining the appropriate position of the main ruler 101 on the drawing board is as follows: First, the perspective view horizon is determined on the drawing paper (that is, the horizon is drawn). Then, based on the perspective drawing rules and the object to be drawn, the perspective view vanishing point is determined on the horizon. The main ruler 101 is then placed against the drawing paper, and the movement trajectory formed by the center point of the through hole 205 of the secondary ruler 102, as described above, is aligned with the horizon. After the main ruler 101 is positioned, the stereoscopic drawing aid is secured to the drawing board using the main ruler fixing plate 103. Once the main ruler 101 is positioned, the secondary ruler 102 is moved so that the center point of the through hole 205 on the secondary ruler 102 coincides with the vanishing point of the perspective view to be drawn. At this point, the draftsman uses one hand to hold the auxiliary line analog ruler 104 taut and against the drawing board surface. Then, he or she rotates the auxiliary line analog ruler 104 to an appropriate angle (determining the appropriate angle is based on the principles of perspective drawing, which is common knowledge). The position of the auxiliary line analog ruler 104 now corresponds to the position of the perspective auxiliary lines (i.e., parallel lines on the perspective object). Then, with the other hand, he or she draws the auxiliary lines, and so on for the remaining auxiliary lines. If the drawing is in two-point perspective (i.e., with two vanishing points), the draftsman can first draw the auxiliary lines converging on one vanishing point, then move the movable secondary ruler 102 to the second vanishing point and draw the auxiliary lines converging on this vanishing point. This process can be alternating, depending on the drawing's needs.

[0039] See Figure 10 、 Figure 11 .

[0040] Figure 10 and Figure 11 There are two movable sub-rules on the main ruler, and auxiliary lines are fixed on the two movable sub-rules to simulate the three-dimensional drawing auxiliary tools of the soft ruler. This structure is similar to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 The structures of the stereoscopic view drawing aids shown are basically the same, except that Figure 10 and Figure 11The illustrated stereoscopic view drawing aid tool has two movable sub-rules 102 mounted on a main ruler 101. Furthermore, auxiliary line-simulating soft rulers 104 are secured within through-holes 205 on each of the two movable sub-rules 102. This embodiment has the advantage that, if the perspective drawing being drawn is a two-point perspective drawing (a perspective drawing with two vanishing points), the centers of the through-holes 205 on the movable sub-rules 102 can be aligned with different vanishing points according to the aforementioned method, and the required auxiliary lines (i.e., parallel lines on the perspective object) can then be drawn using the aforementioned method. Compared to an embodiment with only one sub-rule mounted on the main ruler, this embodiment has the advantage that when drawing auxiliary lines for a two-point perspective drawing, the sub-rule does not need to be repeatedly moved, as is required with only one sub-rule.

[0041] See Figure 12 .

[0042] Figure 12 That is, two movable sub-rules 102 are installed on the main ruler 101, and at the same time, the two ends of an auxiliary line simulating a soft ruler 104 are respectively fixed in the through holes 205 on the two movable sub-rules 102.

[0043] It should be noted that the present invention is not a strict formal drawing tool or instrument, but is only used to help novice painters to intuitively understand and relatively accurately draw perspective auxiliary lines (that is, parallel lines on perspective objects) on the drawing paper as quickly as possible, and establish the concept of perspective on this basis.

[0044] The stereoscopic view drawing auxiliary tool of the present invention can also be transformed or replaced and deformed in a manner that is obvious to those skilled in the art.

Claims

1. An auxiliary tool for drawing a stereoscopic view, characterized in that: The tool comprises: a main ruler (101), a secondary ruler (102), a main ruler fixing splint (103), an auxiliary line simulated soft ruler (104), a pin shaft (105), and an elastic element (106); the main ruler (101) is provided with a long groove (201) and a main ruler lug through hole (204); the main ruler fixing splint (103) is provided with a main ruler fixing splint lug through hole (208); the elastic element (106) is placed between the main ruler (101) and the main ruler fixing splint ( 103), the pin shaft (105) connects the main ruler (101), the main ruler fixing splint (103), and the elastic element (106) together, the secondary ruler (102) is installed on the main ruler (101), the secondary ruler (102) moves on the main ruler (101), two secondary rulers (102) are installed on the main ruler (101), and both ends of an auxiliary line simulation soft ruler (104) are respectively fixed on the secondary ruler (102).

2. The auxiliary tool for drawing a stereoscopic view according to claim 1, characterized in that: The auxiliary line simulated soft ruler (104) is a soft thread-like object.

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