CN117584657A - A template ruler to assist in drawing perspective renderings of different faceted gemstones - Google Patents

Abstract

This application discloses a template ruler that assists in drawing perspective renderings of gemstones with different shapes and facets. The template ruler body is provided with multiple step-by-step drawing areas. Each step-by-step drawing area corresponds to a gemstone size. Each step-by-step drawing area corresponds to a gem size. There are three template-shaped grooves in the drawing area. The three template-shaped grooves correspond to gemstones of the same shape and size. The gemstone cut can be any of the gemstone cuts on the market; three template-shaped grooves in a step-by-step drawing area. Among the two template-shaped grooves, the first template-shaped groove can assist in drawing the outer contour of the gemstone; the second template-shaped groove can assist in drawing the connection line between the kite face and the upper girdle facet of the gemstone in a three-dimensional perspective; the third template-shaped groove can assist in drawing the outer contour of the gemstone. The grooves can assist in drawing the connecting lines between the kite facet and the star facet of the gemstone in a three-dimensional perspective. Using the template ruler provided by this application, you can quickly and effectively draw perspective renderings of different faceted and cut gemstones with perspective effects, avoiding problems such as gem tilt, asymmetry, wrong proportions, and perspective errors.

Description

A template ruler to assist in drawing perspective renderings of different faceted gemstones

Technical field

The present application relates to the technical fields of jewelry design and painting, and in particular to a template ruler that can assist in jewelry design and drawing. Specifically, it is a template ruler that is used to assist in drawing perspective renderings of different cut and faceted gemstones.

Background technique

When jewelry designers design jewelry works, they usually use gemstones of different sizes and shapes, including faceted gemstones of various shapes, such as emerald, oval, round, etc. .

Faceted gemstones generally have various facets such as table, star facet, kite facet, and girdle facet. Therefore, the drawing process of faceted gemstones is complex and time-consuming, especially when drawing gemstones with perspective effects, the perspective drawing of which is much more difficult than drawing the front view of faceted gemstones.

When drawing a gemstone with a perspective effect, you must not only draw the facets and proportions of the gemstone, but also pay attention to the perspective effect of the entire gemstone. In the regular drawing process, you need to draw multiple auxiliary lines to determine the position of each facet of the gemstone. , proportion, size and perspective effect. This process takes about 8-20 minutes for junior painters and about 5-10 minutes for professional jewelry designers. During the drawing process, it is easy to have inaccurate perspective effects, tilts, imbalances, and stains after wiping the auxiliary lines after drawing the facets. , the picture is not clear and other problems.

Especially when drawing hand drawings of rings, the perspective view of the ring is often drawn to enhance the three-dimensional effect of the ring. Currently, the jewelry drawing template rulers on the market only have simple outer contours of various basic shapes of gemstones. When drawing the perspective facets of different cuts of gemstones, you need to first draw and locate the center point of the gemstone, and use a variety of drawing tools such as rulers and protractors to assist in drawing straight auxiliary lines that are perpendicular to each other and have the same shape as the outline of the gemstone. inner auxiliary line. When drawing the inner auxiliary line, you need to pay attention to the proportional relationship and perspective relationship between the measurement and the outer contour of the gemstone. Usually the inner auxiliary line determines the table surface of the gemstone, and its size is not less than half of the outer contour of the gemstone. Of course, the drawing methods and table proportions of faceted gemstones of different cuts are slightly different.

When drawing facets for the perspective effect of gemstones, multiple straight auxiliary lines are generally drawn based on each internal auxiliary line and the perspective relationship to determine the connection points between the kite facet, star facet, and upper waist facet of the gemstone table, and then according to the A certain pattern connects them to draw the individual facets of different cut and faceted gemstones. During this drawing process, problems such as the tilted position of the auxiliary lines and the large perspective deviation of the inner auxiliary lines often occur.

Especially for beginners, it is very difficult to draw the perspective facets of gemstones. Since beginners do not fully understand the facets of gemstones, problems such as misconnecting the connection points, inaccuracy, and proportions often occur. The existing jewelry drawing ruler is mainly used for drawing the outer contour of the gemstone shape, rather than drawing the faceted gemstone with perspective effect. It does not have the function of assisting in quickly drawing the different facets of the gemstone with perspective effect, and it is difficult to draw different facets of the gemstone with perspective effect. During the faceting process, multiple straight auxiliary lines and inner auxiliary lines with different angles need to be drawn to determine the connection points of different facets. In addition, some template rulers have large differences in basic length-to-width ratios, which cannot assist designers in drawing internal auxiliary lines. After facet drawing is completed, the useless auxiliary lines need to be erased with an eraser. Because the auxiliary lines are numerous and complex, this process involves Problems such as stains, obvious wiping marks, and unclean images are very likely to occur; at the same time, the existing template ruler has a relatively single function and cannot assist in drawing gem facets with perspective effects, and cannot meet the engravings with perspective effects required in jewelry. Faced gem design needs. Therefore, there is an urgent need to propose a new technical solution to solve the problems existing in the existing technology.

Contents of the invention

This application provides a template ruler that assists in drawing perspective renderings of gemstones with different facets, in order to solve the problem that the template ruler in the prior art cannot assist in drawing gemstone facets with perspective effects, and cannot meet the perspective requirements in jewelry. Issues with the design requirements of faceted gemstones for effect.

In order to achieve the above objectives, this application provides the following technical solutions:

The present application provides a template ruler that assists in drawing perspective renderings of different-cut and faceted gemstones, including a template ruler body that is provided with several step-by-step drawing areas;

Three template-shaped grooves are provided in each step-by-step drawing area. The three template-shaped grooves correspond to gemstones of the same shape and size. The first template-shaped groove among the three template-shaped grooves is a hollow groove. , the groove edge contour coincides with the outer contour line of the gemstone in a three-dimensional perspective; the second template-shaped groove among the three template-shaped grooves is a hollow groove, and its groove edge contour coincides with the kite surface of the gemstone in a three-dimensional perspective Coinciding with the contour line formed by the connecting line of the upper waist facet, the outer contour of the groove edge of the second template-shaped groove is printed with an auxiliary outer contour line that is the same as the groove edge contour of the first template-shaped groove. ; The third template-shaped groove among the three template-shaped grooves includes an auxiliary contour line printed on the template ruler body that has the same shape as the second template-shaped groove, and a hollow is provided inside the auxiliary contour line A groove whose edge contour coincides with the contour line formed by the connecting line between the kite facet and the star facet of the gemstone in a three-dimensional perspective;

Several of the step-by-step drawing areas respectively correspond to gemstones of the same shape and different sizes;

The template ruler body is a rectangular transparent plate-like structure, and the central axis of the outer contour of the gemstone in a three-dimensional perspective forms an included angle of 45° with the long or wide side of the template ruler body.

Further in the above technical solution, a reference auxiliary line is printed between the groove edge contour of the second template-shaped groove and the auxiliary outer contour printed on its periphery. The reference auxiliary line is used to assist in determining the gemstone. The connection line between the kite surface and the upper waist facet in a three-dimensional perspective.

Further, three template-shaped grooves located in one step-by-step drawing area are arranged in a row on the template ruler body; several step-by-step drawing areas are arranged along the extending direction of any side of the template ruler body. Get in line.

Further, the first template-shaped groove, the second template-shaped groove and the third template-shaped groove in the step-by-step drawing area are arranged in a row from top to bottom along the extension direction of the wide edge of the template ruler body.

Further, three step instruction marks are printed in one of the step-by-step drawing areas close to the edge of the template ruler body, and the three step instruction marks are identical to the three template-shaped grooves in the step-by-step drawing area. correspond.

Furthermore, the size information of the gem corresponding to the template-shaped groove is printed on the bottom of each template-shaped groove.

Further, a scale line is provided on the edge of at least one side of the template ruler body; the 0 mark of the scale line is located at a corner of the template ruler body.

Further, the gemstone cut corresponding to the template-shaped groove on the template ruler body includes any one of round, oval, emerald, cushion, pillow, olive, drop-shaped and heart-shaped.

Compared with the existing technology, this application has the following beneficial effects:

1. The template ruler provided by this application to assist in drawing the perspective renderings of different-cut and faceted gemstones is provided with several step-by-step drawing areas. The number of step-by-step drawing areas corresponds to the various sizes of commonly used gemstones on the market. Three template-shaped grooves are set up in a step-by-step drawing area. The three template-shaped grooves correspond to gemstones of the same shape and size. The gemstone cut can be round, oval, emerald, cushion, pillow, or olive. , drop-shaped, heart-shaped and other gem cuts on the market; take a step-by-step drawing area as an example, the groove edge outline of the first template-shaped groove among the three template-shaped grooves set in it Coinciding with the outer contour of the gemstone in a three-dimensional perspective can assist in drawing the outer contour of the gemstone; the edge contour of the second template-shaped groove among the three template-shaped grooves can assist in drawing the kite face and upper waist of the gemstone in a three-dimensional perspective. The connection line of the facets; the third template-shaped groove among the three template-shaped grooves can assist in drawing the connection line of the kite facet and the star facet of the gemstone in a three-dimensional perspective. Therefore, using the template ruler provided by this application can quickly and effectively draw perspective renderings of different facet-cut gemstones with perspective effects, avoiding problems such as gem tilt, asymmetry, facet proportion errors, inaccuracy, perspective errors, etc.; It is convenient for jewelry designers to use faceted gemstones of different sizes and shapes for design. It solves the problem that the template ruler in the existing technology cannot assist in drawing gemstone facets with perspective effect and cannot meet the facets with perspective effect required in jewelry. The design requirements of gemstones.

2. The template ruler provided by this application to assist in drawing the perspective renderings of different-cut and faceted gemstones is also equipped with scale lines, so it also has the functions of measuring, positioning, and auxiliary scribing of a general ruler. The overall function of the template ruler is diverse. It is convenient for jewelry designers and beginners to draw perspective renderings of different faceted gemstones. It is practical and effective in saving drawing time and reducing drawing difficulty.

3. The template ruler provided by this application to assist in drawing the perspective renderings of different cut and faceted gemstones is provided with step instructions, which serve as step reminders, are easy to operate and use, and have clear steps, which can effectively improve the efficiency of design and drawing.

4. The template ruler provided by this application to assist in drawing the perspective renderings of different cut and faceted gemstones is rectangular, which can reduce the overall volume of the ruler while adapting to the arrangement of multiple template-shaped grooves distributed in long strips as much as possible, and is convenient. It is portable, corresponds to various sizes and cuts of gemstones, is easy to design and use, and helps novices grasp the accuracy of size and drawing of different cuts and facets.

5. The template ruler provided by this application to assist in drawing the perspective renderings of different faceted gemstones can reduce the drawing of auxiliary lines, avoid stains on the picture, and paper damage caused by heavy wiping.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts. It should be understood that the specific shapes and structures shown in the drawings should generally not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art will have the ability to implement the technical concepts and exemplary drawings disclosed in the present application. The addition/subtraction/attribution division, specific shape, positional relationship, connection method, size proportion relationship, etc. of certain units (components) are easy to make routine adjustments or further optimization.

Figure 1 is a schematic diagram of the first planar structure of the template ruler provided by this application. The template ruler shown in this figure is an olive-shaped ruler. The unit of the size indicated below the template-shaped groove in the figure is mm;

Figure 2 is a schematic diagram of the second planar structure of the template ruler provided by this application. The template ruler shown in this figure is a drop-shaped template ruler. The unit of the size indicated below the template-shaped groove in the figure is mm;

Figure 3 is a schematic diagram of the third planar structure of the template ruler provided by this application. The template ruler shown in this figure is a cushion type ruler. The unit of the size indicated below the template groove in the figure is mm;

Figure 4 is a schematic diagram of the fourth planar structure of the template ruler provided by this application. The template ruler shown in this figure is a heart-shaped template ruler. The unit of the size indicated below the template-shaped groove in the figure is mm;

Figure 5 is a schematic diagram of the fifth planar structure of the template ruler provided by this application. The template ruler shown in this figure is a princess square ruler. The unit of the size indicated below the template groove in the figure is mm;

Figure 6 is a schematic diagram of the sixth planar structure of the template ruler provided by this application. The template ruler shown in this figure is an emerald type ruler. The unit of the size indicated below the template groove in the figure is mm.

Explanation of reference symbols:

1. Template ruler body; 2. Scale lines; 3. Step instructions; 4. First template-shaped groove; 5. Second template-shaped groove; 6. Auxiliary outer contour line; 7. Reference auxiliary line; 8. The third template forms the groove.

Detailed ways

The present application will be further described in detail through specific embodiments in conjunction with the accompanying drawings.

In the description of this application: unless otherwise stated, "plurality" means two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects they refer to, but do not have special meaning in terms of technical connotation (for example, they should not be understood as indicating the degree of importance or order, etc. emphasis). Expressions such as "including", "including" and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

Terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are usually used to facilitate intuitive understanding with reference to the drawings, rather than absolute positional relationships in actual products. limited. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as within the scope of this application.

The existing jewelry drawing ruler is mainly used for drawing the outer contour of the gemstone shape, rather than drawing the faceted gemstones with perspective effect. It does not have the function of quickly drawing different facets of gemstones with perspective effect, and it is difficult to draw different facets. In the process, multiple straight auxiliary lines and internal auxiliary lines with different angles need to be drawn to determine the connection points of different facets; in addition, the basic properties of some template rulers have large differences in length and width ratios, which cannot better assist designers in drawing internal auxiliary lines. Auxiliary lines, after the facet drawing is completed, use an eraser to erase the useless auxiliary lines. Because the auxiliary lines are numerous and complex, this process is very likely to cause problems such as stains, obvious wipe marks, and unclean images.

Therefore, the existing jewelry drawing ruler has a relatively single function and cannot assist in drawing gem facets with a perspective effect, and cannot meet the design requirements for faceted gemstones with a perspective effect required in jewelry. In order to solve the above existing problems, this application provides a template ruler that can assist in drawing perspective effects of different faceted gemstones. This template ruler can assist users to quickly and effectively draw perspective effects of different faceted gemstones with perspective effects. diagram, greatly improving work efficiency and reducing drawing difficulty.

The structure and use method of the template ruler provided by this application that can assist in drawing perspective renderings of different-cut and faceted gemstones will be described below through the following examples.

Embodiment 1

This embodiment provides a template ruler that can assist in drawing perspective renderings of different cut and faceted gemstones. The body of the template ruler is a rectangular transparent plate structure, preferably made of plastic material, which is light, durable and not fragile. It can be colorless and transparent. The board can also be a transparent board with a certain color, such as a transparent board with green, blue, pink, etc.

As shown in Figure 1, the shape of the template ruler body 1 in this application is preferably rectangular. Firstly, the rectangle is relatively regular with right angles, and it is used on A4 paper when drawing. The rectangular ruler is convenient for positioning; secondly, the rectangular ruler is provided on the template ruler of this application. The three template-shaped grooves in each step-by-step drawing area are arranged in a row, and multiple step-by-step drawing areas are arranged in a row. The overall arrangement is regular and has a certain order, and is arranged in a long strip. The rectangular template ruler can be placed in a row. To adapt to this arrangement in the smallest area, try to reduce the size of the template ruler to facilitate portability. Therefore, although the template ruler can be made into a square, circular, fan-shaped, etc., these shapes are not as easy to use and carry as a rectangular ruler. .

The template ruler body in this application is provided with several step-by-step drawing areas, and the number of step-by-step drawing areas corresponds to the various sizes of commonly used gemstones on the market. For example, the template ruler shown in Figure 1 has 14 step-by-step drawing areas from left to right, and one step-by-step drawing area corresponds to one gemstone size.

Three template-shaped grooves are provided in each step-by-step drawing area. The three template-shaped grooves correspond to gemstones of the same shape and size. For example, in Figure 1, the three template-shaped grooves are located in the step-by-step drawing area on the far left of the template ruler body. All correspond to olive-shaped gemstones with a size of 17*18mm. In order to serve as a size reminder and facilitate user comparison, the bottom of each template-shaped groove on the template ruler is printed with the size information of the gemstone corresponding to the template-shaped groove.

Continuing to refer to Figure 1, we will take the three template-shaped grooves located in the step-by-step drawing area on the far left side of the template ruler body as an example for explanation:

The first template-shaped groove 4 among the three template-shaped grooves (i.e., the upper template-shaped groove among the three template-shaped grooves arranged in a row from top to bottom) is a hollow groove, and its groove edge profile is similar to that of the gemstone in a three-dimensional perspective. The outer contours below coincide. The perspective rendering reflects a three-dimensional perspective. Therefore, the central axis of the outer contour of the gemstone in the three-dimensional perspective forms an angle of 45° with the long or wide side of the template ruler body. This is different from the outer contour of the gemstone when drawing the perspective rendering. The layout direction is consistent.

The second template-shaped groove 5 among the three template-shaped grooves (i.e., the middle template-shaped groove among the three template-shaped grooves arranged in a row from top to bottom) is a hollow groove, and its groove edge profile is the same as that made of gemstones in three dimensions. The outline formed by the connection line between the kite surface and the upper waist facet from the angle of view coincides; in addition, the outer edge of the groove edge outline of the second template-shaped groove 5 is also printed with the same pattern as the first template-shaped groove 4. The auxiliary outer contour 6 with the same groove edge contour plays a corresponding positioning role during the use of the template ruler.

In a preferred embodiment, continuing to refer to Figure 1, a reference auxiliary line 7 can also be printed between the groove edge contour of the second template-shaped groove 5 and the auxiliary outer contour 6 printed on its periphery. The reference auxiliary line 7 is used to assist in determining the connection line between the kite face and the upper girdle facet of the gemstone in a three-dimensional perspective. The reference auxiliary line 7 can be understood as an auxiliary construction line for making the edge contour of the second template-shaped groove, which embodies the second template. The construction principle of the groove edge contour of the two template-shaped grooves 5.

The third template-shaped groove among the three template-shaped grooves (that is, the lower template-shaped groove among the three template-shaped grooves arranged in a row from top to bottom) includes a second one printed on the template ruler body 1. The template forms an auxiliary contour line with the same shape as the groove 4. A hollow groove is provided inside the auxiliary contour line. The groove edge contour of the hollow groove coincides with the contour line formed by the connection line between the kite surface and the star facet of the gemstone in a three-dimensional perspective.

The structure of the template ruler provided in this embodiment can be seen in Figure 1. The template ruler is made of soft plastic material and has a size of 297mm*140mm.

The gemstone cut corresponding to the template-shaped grooves on the template ruler provided by this application can be any of round, oval, emerald, cushion, pillow, olive, drop-shaped and heart-shaped. Of course, it can also be Can be other shapes.

The above-mentioned round, oval, emerald, cushion, pillow, olive, drop and heart shapes are the main gem cuts on the market. According to the different gem cuts corresponding to the template ruler, the template ruler can be matched Named: round ruler, oval ruler, emerald ruler, cushion ruler, pillow ruler, olive ruler, drop-shaped ruler and heart-shaped ruler.

When using the template ruler provided in this embodiment to assist in drawing the perspective rendering of gemstone facets, the operation process is as follows:

The first step is to choose the shape and size of the gemstone you need, and select the target template ruler according to the shape and size of the gemstone. For example, if you need an olive-shaped gemstone of 15*26mm, choose the olive-shaped template ruler, which is the ruler shown in Figure 1, and Select the corresponding size of the template groove on the olive-shaped ruler, that is, the step-by-step drawing area in the third column from left to right is the target step-by-step drawing area;

In the second step, place the selected template ruler with the target size and cut shape on the surface of the A4 paper where the gemstone needs to be drawn, and move the template ruler to make the first template shape groove in the target step-by-step drawing area (the groove edge contour is (the outer contour of the gem in a three-dimensional perspective) is moved to the position in the design draft where the perspective view of the gem is required, and after alignment, use a pen to draw the outer contour of the gem according to the groove edge contour of the first template-shaped groove on the ruler;

The third step is to move the ruler so that the auxiliary outer contour line (i.e. the outer contour line of the gemstone) printed on the periphery of the second template groove in the target step-by-step drawing area corresponds to the outer contour line of the gemstone that has been drawn in the previous step. , and then draw the kite according to the groove edge profile of the second template-shaped groove in the target step-by-step drawing area on the ruler (the groove edge profile is the connection line between the kite surface and the upper waist facet of the target gemstone in a three-dimensional perspective) The connecting line between the face and the upper waist facet;

The fourth step is to move the ruler and connect the auxiliary contour line printed on the periphery of the third template groove in the target step-by-step drawing area with the previously drawn outer contour line of the gemstone and the connection line between the kite surface and the upper waist facet. Correspondingly, and then draw the groove edge outline of the third template-shaped groove in the target step-by-step drawing area on the ruler (the groove edge profile is the connecting line between the kite surface and the star facet of the target gemstone in a three-dimensional perspective). The connecting line between the kite surface and the star facet.

The fifth step is to remove the template ruler and connect the remaining missing facet link lines.

The template ruler provided by this application can quickly and effectively draw perspective renderings of different facet-cut gemstones with perspective effects, avoiding problems such as gem tilt, asymmetry, facet proportion errors, inaccuracies, and perspective errors; it facilitates jewelry design. The designer uses faceted gemstones of different sizes and shapes for design, which solves the problem that the template ruler in the existing technology cannot assist in drawing the facets of gemstones with perspective effect, and cannot meet the design of faceted gemstones with perspective effect required in jewelry. demand issues.

Embodiment 2

This embodiment provides a template ruler that assists in drawing perspective renderings of gemstones with different shapes and facets. This embodiment is based on the template ruler provided in Embodiment 1, in a step-by-step drawing area near the edge of the template ruler body. Three step instruction marks are printed, and the three step instruction marks correspond to the three template-shaped grooves in the step-by-step drawing area.

As shown in Figure 2, Figure 2 shows a drop-shaped ruler. There are three template-shaped grooves from top to bottom in the step-by-step drawing area on the leftmost side of the template ruler body. There are steps printed next to each template-shaped groove. Instruction mark 3. Specifically, the three step indication marks indicate "step1", "step2", and "step3" in sequence, that is, step 1, step 2, and step 3. "step1", "step2", and "step3" They are arranged in sequence from top to bottom, corresponding to the first template-shaped groove, the second template-shaped groove, and the third template-shaped groove that are arranged in sequence from top to bottom. The function of setting three-step instructions is to prompt users to clarify the order of use, which is very friendly to beginners.

The template ruler provided in this embodiment can prompt the user to follow the steps to draw the connecting lines of different facets of the faceted gemstone, making it more convenient for jewelry designers to draw faceted gemstones, especially for beginners who are not very clear about the relationship between the connecting points. It is more obvious that it can save time, the steps are simple and clear, it can improve the efficiency of design and drawing, it is easy to carry and easy to measure.

Embodiment 3

This embodiment provides a template ruler that assists in drawing perspective renderings of different faceted gemstones. This embodiment is based on the template ruler provided in Embodiment 2, and is provided at the edge of one long side of the template ruler body. Scale mark, the 0 mark of the scale mark is located in the upper left corner of the template ruler body. Of course, according to the usage requirements, scale lines can also be set on one wide edge of the template ruler body during production. The setting of the scale lines makes it convenient to use the template ruler for measurement and positioning. In addition, the function of the template ruler is also added, which can not only efficiently assist in drawing perspective renderings of different cut and faceted gemstones, but also has the functions of measurement, positioning, and auxiliary marking. and other functions.

To sum up, the template ruler provided in this application provides a step-by-step drawing method, which displays the drawing process of gem perspective renderings step by step. The steps are clear and easy to use, which can greatly improve work efficiency and make it easy for beginners to use.

Furthermore, using this template ruler, you can follow the step prompts to draw the connecting lines between the outer contour of the gemstone, the upper girdle facets, the kite facets, and the star facets, thereby reducing the number of drawing auxiliary lines and saving drawing time, which can save about 5- In 15 minutes, it simultaneously solves problems such as tilting of the auxiliary lines, imbalance of proportions, and deviations in the perspective effect, improves accuracy, and reduces problems such as stains and traces that appear after wiping after drawing multiple auxiliary lines.

In addition, the template ruler provided by this application can be adapted to various gemstone shapes and sizes, such as round, oval, emerald, cushion, pillow, olive, drop-shaped, heart-shaped and other major gemstones on the market. All cuts can be included, and various commonly used sizes of each cut are also covered, which can meet the design needs of jewelry design for the perspective effects of gemstones of different sizes and shapes. It is a professional jewelry with different cuts. An auxiliary drawing template ruler for the perspective effect of faceted gemstones.

The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). In order to simplify the description, all possible combinations of the technical features in the above embodiments are not described; these are not explicitly stated. The written examples should also be considered to be within the scope described in this specification.

The above has provided a relatively specific and detailed description of the present application through general descriptions and specific examples. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations are also It also falls within the scope of protection of the claims of this application.

Claims (8)

1. The template ruler is characterized by comprising a template ruler body, wherein a plurality of step drawing areas are arranged on the template ruler body;

three template-shaped grooves are arranged in each step drawing area, the three template-shaped grooves correspond to precious stones with the same shape and size, a first template-shaped groove in the three template-shaped grooves is a hollowed-out groove, and the outline of the groove edge of the first template-shaped groove coincides with the outline of the precious stone under a three-dimensional view angle; a second template-shaped groove in the three template-shaped grooves is a hollow groove, the groove edge profile of the second template-shaped groove is coincident with the profile line formed by the connecting line of the kite surface and the upper waist facet of the precious stone under the three-dimensional view angle, and the periphery of the groove edge profile of the second template-shaped groove is printed with an auxiliary outer profile line which is identical with the groove edge profile of the first template-shaped groove; a third template-shaped groove of the three template-shaped grooves comprises an auxiliary contour line which is printed on the template ruler body and has the same shape as the second template-shaped groove, a hollowed groove is arranged in the auxiliary contour line, and the contour of the groove edge of the hollowed groove coincides with the contour line formed by the connecting line of the kite surface and the star facet of the precious stone under the three-dimensional view angle;

the step drawing units respectively correspond to precious stones with the same shape and different sizes;

the template ruler body is of a rectangular transparent platy structure, and a 45-degree included angle is formed between the central axis of the outer contour line of the precious stone under the three-dimensional visual angle and the long side or the wide side of the template ruler body.

2. The template ruler for assisting in drawing perspective effect figures of different cut facet gemstones according to claim 1, wherein a reference auxiliary line is printed between the groove edge outline of the second template-shaped groove and the auxiliary external contour line printed on the periphery of the second template-shaped groove, and the reference auxiliary line is used for assisting in determining connecting lines of kite faces and upper waist facets of the gemstones in a three-dimensional view.

3. A masterscale for assisting in drawing perspective effect maps of differently cut faceted precious stones according to claim 1, characterized in that three mastered grooves located in one of said step drawing areas are aligned on said masterscale body; and a plurality of step drawing areas are arranged in a row along the extending direction of any side of the template ruler body.

4. A mastering scale for assisting in drawing perspective effect figures of differently cut faceted precious stones according to claim 3, characterized in that the first mastering groove, the second mastering groove and the third mastering groove in said step drawing area are arranged in a row from top to bottom along the broadside extension direction of the mastering scale body.

5. The template ruler for assisting in drawing perspective effect charts of different cut precious stones according to claim 1, wherein three step indication marks are printed in one step drawing area close to the edge of the template ruler body, and the three step indication marks correspond to three template-shaped grooves in the step drawing area one by one.

6. The masterscale for assisting in drawing perspective effect charts of differently cut faceted precious stones according to claim 1, characterized in that the bottom of each mastering groove is printed with dimension information of the precious stone corresponding to said mastering groove.

7. The template ruler for assisting in drawing perspective effect figures of different cut precious stones according to claim 1, wherein graduation marks are arranged on the edge of at least one side of the template ruler body; the 0 scale of the scale mark is positioned at the corner of the template ruler body.

8. The template ruler for assisting in drawing perspective effect charts of different cut precious stones according to claim 1, wherein precious stone cut corresponding to template-shaped grooves on the template ruler body comprises any one of round, oval, emerald, pad, pillow, olive, drop and heart.