CN112182734A - Method and device for automatically determining distance between point and axis - Google Patents
Method and device for automatically determining distance between point and axis Download PDFInfo
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Abstract
The invention discloses a method and a device for automatically determining the distance between a point and an axis. Wherein, the method comprises the following steps: receiving a selection instruction of a target point in the design drawing in the process of displaying the design drawing and the auxiliary axes, wherein the target point is a point which is not on any one auxiliary axis; acquiring a target coordinate of a target point in a target coordinate system and a start point coordinate and an end point coordinate of each auxiliary axis in the auxiliary axes in the target coordinate system; determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate; and displaying the target distance between the target axis and the target point. The invention solves the technical problem of low efficiency in determining the distance between a point and an axis in the prior art.
Description
Technical Field
The invention relates to the technical field of building aided design, in particular to a method and a device for automatically determining the distance between a point and an axis.
Background
In the prior art, in the process of building aided design by a user, a design drawing can be usually placed on a page where an aided axis is located, and the aided axis is used to view the proportion of lines in the design drawing and the like, so as to design a building. However, in the prior art, the lines in the design drawing do not necessarily fall on the auxiliary axis, and if the lines do not fall on the auxiliary axis, the developer needs to actively think and design, and finally determines the distance between the point in the design drawing and the auxiliary axis, which causes low efficiency in determining the distance between the point and the axis.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a method and a device for automatically determining the distance between a point and an axis, which at least solve the technical problem of low efficiency in determining the distance between the point and the axis in the prior art.
According to an aspect of an embodiment of the present invention, there is provided a method of automatically determining a distance from an axis, including: receiving a selection instruction of a target point in the design drawing in the process of displaying the design drawing and the auxiliary axes, wherein the target point is a point which is not on any auxiliary axis; acquiring a target coordinate of the target point in a target coordinate system and a start point coordinate and an end point coordinate of each auxiliary axis in the auxiliary axes in the target coordinate system; determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate; and displaying the target distance between the target axis and the target point.
As an optional implementation manner, before receiving the selection instruction for the target point in the design drawing, the method further includes: acquiring the design drawing; guiding the design drawing into a page where the auxiliary axis is located; and establishing the target coordinate system for the page where the auxiliary axis is located.
As an optional implementation manner, before receiving the selection instruction for the target point in the design drawing, the method further includes: determining corresponding auxiliary points of each point in the design drawing under the target coordinate system; a selection button is provided for each of the above-mentioned auxiliary points.
As an optional implementation, the receiving the selection instruction for the target point in the design drawing includes: receiving a click command of the selection button corresponding to the auxiliary point corresponding to the target point; and determining that the selection instruction is received under the condition that the click instruction is received.
As an alternative embodiment, the determining a target axis line closest to the target point based on the target coordinates, the start point coordinates, and the end point coordinates includes: determining each auxiliary axis as a current auxiliary axis, and determining the distance from the target coordinate to the current auxiliary axis; after the distances from the target coordinate to each auxiliary axis are determined, the auxiliary axis corresponding to the minimum value in the distances is determined as the target axis.
According to another aspect of the embodiments of the present invention, there is also provided an apparatus for automatically determining a distance from an axis, including: the device comprises a receiving unit, a selecting unit and a judging unit, wherein the receiving unit is used for receiving a selection instruction of a target point in a design drawing in the process of displaying the design drawing and an auxiliary axis, and the target point is a point which is not on any auxiliary axis; a first obtaining unit, configured to obtain a target coordinate of the target point in a target coordinate system and a start point coordinate and an end point coordinate of each of the auxiliary axes in the target coordinate system; a first determining unit configured to determine a target axis line closest to the target point based on the target coordinates, the start point coordinates, and the end point coordinates; and the display unit is used for displaying the target distance between the target axis and the target point.
As an optional implementation, the apparatus further includes: a second acquiring unit configured to acquire the design drawing before receiving the selection instruction for the target point in the design drawing; the leading-in unit is used for leading the design drawing into a page where the auxiliary axis is located; and the establishing unit is used for establishing the target coordinate system for the page where the auxiliary axis is located.
As an optional implementation, the apparatus further includes: a second determining unit, configured to determine, before receiving the selection instruction for the target point in the design drawing, a corresponding auxiliary point for each point in the design drawing in the target coordinate system; and the configuration unit is used for configuring a selection button for each auxiliary point.
As an optional implementation, the receiving unit includes: a receiving module, configured to receive a click instruction of the selection button corresponding to the auxiliary point corresponding to the target point; and the first determining module is used for determining that the selection instruction is received under the condition that the click instruction is received.
As an optional implementation, the first determining unit includes: the execution module is used for determining each auxiliary axis as a current auxiliary axis and determining the distance from the target coordinate to the current auxiliary axis; and the second determining module is used for determining the auxiliary axis corresponding to the minimum value in the distances as the target axis after determining the distances from the target coordinates to each auxiliary axis.
In the embodiment of the invention, in the process of displaying the design drawing and the auxiliary axes, receiving a selection instruction of a target point in the design drawing, wherein the target point is a point which is not on any auxiliary axis; acquiring a target coordinate of the target point in a target coordinate system and a start point coordinate and an end point coordinate of each auxiliary axis in the auxiliary axes in the target coordinate system; determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate; in the method, after a user determines one point in a design drawing, the system can automatically acquire information and then determine the target distance between the determined target point and the target axis, so that the effect of increasing the distance between the determined point and the axis is realized, and the technical problem of low efficiency in determining the distance between the point and the axis in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of an alternative method of automatically determining a point-to-axis distance in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a page with axes for an alternative automatic determination of the distance from the axes according to an embodiment of the invention;
FIG. 3 is a diagram of a page of an axis with an alternative method of automatically determining the distance from the axis according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
FIG. 5 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
FIG. 6 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
FIG. 7 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
FIG. 8 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
FIG. 9 is a schematic illustration of an alternative automatic determination of point to axis distance in accordance with embodiments of the present invention;
fig. 10 is a schematic structural diagram of an alternative apparatus for automatically determining a distance from an axis according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an aspect of the embodiments of the present invention, there is provided a behavior recognition method, optionally, as an optional implementation manner, as shown in fig. 1, the method includes:
s102, receiving a selection instruction of a target point in a design drawing in the process of displaying the design drawing and an auxiliary axis, wherein the target point is a point which is not on any auxiliary axis;
s104, acquiring a target coordinate of the target point in a target coordinate system and a start point coordinate and an end point coordinate of each auxiliary axis in the auxiliary axes in the target coordinate system;
s106, determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate;
and S108, displaying the target distance between the target axis and the target point.
Optionally, the present application may be, but is not limited to, applied to a process of building aided development or design, in which a user may perform the aided development or design of a building through a computer, and in this process, a design drawing may be imported to a page where an aided axis is located, and then the design drawing is designed or modified through the aided axis. However, if the lines and the like on the design drawing do not fall on the auxiliary axis in this process, the details of the design drawing cannot be determined, and the design drawing cannot be accurately modified. In the prior art, a worker needs to check points on a design drawing by himself and then calculate the distance from the points to the auxiliary axis by himself. The prior art is inefficient in determining the point-to-axis distance.
In the embodiment of the application, a user only needs to click one point on the design drawing, and then the system can automatically acquire the coordinate of the point and the coordinate of the auxiliary axis to further determine the distance from the point to the auxiliary axis. The auxiliary axis with the minimum distance is selected from the auxiliary axes as the target axis, the distance from the point to the target axis is displayed, and the effect of improving the efficiency of determining the distance from the point to the axis is achieved.
As an optional implementation, before receiving the selection instruction for the target point in the plan, the method further includes: acquiring the design drawing; importing the design drawing into a page where the auxiliary axis is located; and establishing the target coordinate system for the page where the auxiliary axis is located.
Alternatively, the user may import the plan by an import button on the page where the auxiliary axis is located, for example, the import button is provided on the page where the auxiliary axis is located, and by clicking the import button, the plan to be imported may be selected, and then the plan may be displayed on the page where the auxiliary axis is located. A coordinate system may be established for the page on which the secondary axis lies to determine the coordinates of each point.
By the embodiment, the efficiency of importing the design drawing is improved.
As an optional implementation, before receiving the selection instruction for the target point in the plan, the method further includes: determining corresponding auxiliary points of each point in the design drawing under the target coordinate system; a selection button is provided for each of said auxiliary points.
Alternatively, after the plan is imported to the page on which the auxiliary axis is located, a selection button may be provided for the plan. The selection button may be hidden or displayed. In the case of display, each button corresponds to a point on the blueprint. When the button is pressed, the corresponding point on the design drawing can be determined as the target point, and then the shortest distance between the target point and the axis is determined.
As an optional implementation, receiving the selection instruction of the target point in the design drawing includes: receiving a click instruction of the selection button corresponding to the auxiliary point corresponding to the target point; and determining that the selection instruction is received under the condition that the click instruction is received.
Optionally, in combination with the above embodiment, when a selection button in the design drawing is clicked to determine a point, a selection instruction is automatically generated, and the selected point is determined as the target point.
As an optional implementation manner, the determining, according to the target coordinate, the start coordinate, and the end coordinate, a target axis closest to the target point includes: determining each auxiliary axis as a current auxiliary axis, and determining the distance from the target coordinate to the current auxiliary axis; after determining the distances from the target coordinate to each auxiliary axis, determining the auxiliary axis corresponding to the minimum value in the distances as the target axis.
The above-described method of automatically determining the distance from the point to the axis is explained below with reference to specific examples. For example, the design drawing is a wall body large-scale design drawing. And (4) guiding the design drawing of the wall body into the page where the auxiliary axis is located. The secondary axes may constitute a shaft network. If the wall body in the design drawing does not intersect with the shaft network, the minimum distance from the point in the design drawing to the axis in the shaft network needs to be determined, and then dimension marking is carried out. In the method, the function of determining the minimum distance from the point to the axis is packaged into the system, and a user only needs to refer to the library file of the method in a project and transmits corresponding parameters of a functional interface, such as the coordinate of the determined point, so that the packaged function can be called to obtain a result quickly. In specific use, as the target point and the axis network have no intersection point, the axis closest to the target point is found without the intersection point, and the shortest distance from the target point to the axis is taken as an auxiliary line for marking or measuring the size standard.
FIG. 2 is a schematic view of an alternative layout on the page of the secondary axis, as shown in FIG. 2. The design drawing has the wall figure. If the roof 202 is not on the axis network (or called axis) 204 as in fig. 2, then the shortest distance from the point 202 to the axis network needs to be determined. The result of the determination may be as shown in fig. 3, labeled in fig. 3 as the shortest distance 306 of the roof 302 to the axis 304.
On a specific algorithm, parameters are firstly introduced: the coordinate value point of the target point, the coordinate start of the starting point of the line segment (auxiliary axis), the coordinate end of the line segment, and the return result: distance of a point to a line segment. Taking two endpoints of the line segment, the direction of the line segment is obtained, and the direction can be from endpoint 1 to endpoint 2, namely from the starting point to the terminal. Using the vector dot product algorithm, the end point 1 is marked as start, the end point 2 is marked as end, and the target point is marked as point.
The vector dir is recorded as a vector from an end point 1 to an end point 2, the double-precision floating point number t is the dot product of the vector from the end point 1 to the end point divided by an intermediate parameter, and the intermediate parameter is the dot product of dir and dir. And judging the position of the mapping point according to the value of t.
The judgment logic is as follows:
1. if t ≧ 0 and t ≦ 1, the mapped point of the target point is on the line segment or on either end 1 or end 2 of the line segment. As shown in fig. 4.θ represents the angle formed by the start-to-point line and the start-to-end line.
2. If t is less than 0, the mapping point is taken as an end point 1, and one end outside the end point 1 is represented; as shown in fig. 5. The included angle theta is greater than 90 degrees, so t is less than 0.
3. If t > 1, then the mapped point is taken as end point 2, indicated at the end outside of end point 2. As shown in fig. 6.
p is a start point, and point-start, i.e., start-p, is a vector.
In case of the above case 1, the distance from the target point to the axis is the distance from the target point to the perpendicular to the axis as shown in fig. 7. If it is the case 2 described above, the distance from the target point to the axis is the distance from the target point (i.e., the end point) to the end point 1 as shown in fig. 8. In case 3 above, the distance from the target point to the end point is the distance from the target point to the end point 2 as shown in fig. 9.
In the embodiment of the present application, after receiving the selection instruction, a determination instruction for determining the target axis may also be received, so as to determine the target axis, and the shortest distance from the target point to the target axis is determined by using the embodiment.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
According to another aspect of the embodiments of the present invention, there is also provided an apparatus for automatically determining a distance from an axis, for implementing the above method for automatically determining a distance from an axis. As shown in fig. 10, the apparatus includes:
a receiving unit 1002, configured to receive a selection instruction for a target point in the design drawing during displaying of the design drawing and the auxiliary axes, where the target point is a point that is not on any one auxiliary axis;
a first obtaining unit 1004, configured to obtain target coordinates of the target point in a target coordinate system and start point coordinates and end point coordinates of each of the auxiliary axes in the target coordinate system;
a first determining unit 1006, configured to determine a target axis closest to the target point according to the target coordinate, the start point coordinate, and the end point coordinate;
a display unit 1008 for displaying the target distance between the target axis and the target point.
Optionally, the present application may be, but is not limited to, applied to a process of building aided development or design, in which a user may perform the aided development or design of a building through a computer, and in this process, a design drawing may be imported to a page where an aided axis is located, and then the design drawing is designed or modified through the aided axis. However, if the lines and the like on the design drawing do not fall on the auxiliary axis in this process, the details of the design drawing cannot be determined, and the design drawing cannot be accurately modified. In the prior art, a worker needs to check points on a design drawing by himself and then calculate the distance from the points to the auxiliary axis by himself. The prior art is inefficient in determining the point-to-axis distance.
In the embodiment of the application, a user only needs to click one point on the design drawing, and then the system can automatically acquire the coordinate of the point and the coordinate of the auxiliary axis to further determine the distance from the point to the auxiliary axis. The auxiliary axis with the minimum distance is selected from the auxiliary axes as the target axis, the distance from the point to the target axis is displayed, and the effect of improving the efficiency of determining the distance from the point to the axis is achieved.
For other examples of the embodiments of the present application, please refer to the above examples, which are not described herein again.
The integrated unit in the above embodiments, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in the above computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing one or more computer devices (which may be personal computers, servers, network devices, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method of automatically determining a distance from an axis, comprising:
receiving a selection instruction of a target point in the design drawing in the process of displaying the design drawing and the auxiliary axes, wherein the target point is a point which is not on any auxiliary axis;
acquiring a target coordinate of the target point in a target coordinate system and a start point coordinate and an end point coordinate of each auxiliary axis in the auxiliary axes in the target coordinate system;
determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate;
and displaying the target distance between the target axis and the target point.
2. The method of claim 1, wherein prior to receiving the selection instruction for the target point in the plan, the method further comprises:
acquiring the design drawing;
importing the design drawing into a page where the auxiliary axis is located;
and establishing the target coordinate system for the page where the auxiliary axis is located.
3. The method of claim 1, wherein prior to receiving the selection instruction for the target point in the plan, the method further comprises:
determining corresponding auxiliary points of each point in the design drawing under the target coordinate system;
a selection button is provided for each of said auxiliary points.
4. The method of claim 3, wherein receiving the selection instruction of the target point in the plan view comprises:
receiving a click instruction of the selection button corresponding to the auxiliary point corresponding to the target point;
and determining that the selection instruction is received under the condition that the click instruction is received.
5. The method of claim 1, wherein said determining a target axis closest to the target point from the target coordinates, the start coordinates, and the end coordinates comprises:
determining each auxiliary axis as a current auxiliary axis, and determining the distance from the target coordinate to the current auxiliary axis;
after determining the distances from the target coordinate to each auxiliary axis, determining the auxiliary axis corresponding to the minimum value in the distances as the target axis.
6. An apparatus for automatically determining a distance from an axis, comprising:
the device comprises a receiving unit, a selecting unit and a display unit, wherein the receiving unit is used for receiving a selection instruction of a target point in a design drawing in the process of displaying the design drawing and an auxiliary axis, and the target point is a point which is not on any auxiliary axis;
the first acquisition unit is used for acquiring a target coordinate of the target point in a target coordinate system and a starting point coordinate and an end point coordinate of each auxiliary axis in the target coordinate system;
the first determining unit is used for determining a target axis closest to the target point according to the target coordinate, the starting point coordinate and the end point coordinate;
and the display unit is used for displaying the target distance between the target axis and the target point.
7. The apparatus of claim 6, further comprising:
a second acquisition unit configured to acquire the design drawing before receiving the selection instruction for the target point in the design drawing;
the leading-in unit is used for leading the design drawing into a page where the auxiliary axis is located;
and the establishing unit is used for establishing the target coordinate system for the page where the auxiliary axis is located.
8. The apparatus of claim 6, further comprising:
a second determining unit, configured to determine, before receiving the selection instruction for the target point in the design drawing, a corresponding auxiliary point for each point in the design drawing in the target coordinate system;
and the configuration unit is used for configuring a selection button for each auxiliary point.
9. The apparatus of claim 8, wherein the receiving unit comprises:
a receiving module, configured to receive a click instruction of the selection button corresponding to the auxiliary point corresponding to the target point;
and the first determining module is used for determining that the selection instruction is received under the condition that the click instruction is received.
10. The apparatus according to claim 6, wherein the first determining unit comprises:
the execution module is used for determining each auxiliary axis as a current auxiliary axis and determining the distance from the target coordinate to the current auxiliary axis;
and the second determining module is used for determining the auxiliary axis corresponding to the minimum value in the distances as the target axis after determining the distances from the target coordinate to each auxiliary axis.
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Application publication date: 20210105 |