CN112070327A - Site selection method, device and storage medium for urban cultural land planning - Google Patents
Site selection method, device and storage medium for urban cultural land planning Download PDFInfo
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Abstract
The application discloses a site selection method, a site selection device and a storage medium for urban cultural land planning. The method comprises the following steps: acquiring terrain data related to urban terrain; determining a city-mountain relevance of a plurality of locations of the city from the terrain data, wherein the city-mountain relevance is indicative of a degree to which the plurality of locations of the city are associated with a perimeter mountain shape; selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of the city; and selecting a place of the non-cultural land from the places satisfying the predetermined condition as a planning place of the city. Therefore, through the mode, the technical effect that the place with the lowest natural force damage degree is selected as the planning place of the urban cultural land can be achieved by combining the natural mountains and waters around the city well, scientifically and reasonably according to the determined city mountain relevance degree.
Description
Technical Field
The application relates to the field of urban planning, in particular to a site selection method, a site selection device and a storage medium for urban cultural land planning.
Background
At present, how to combine the mountain shape around the city well is one of the primary factors to be considered in the process of planning the city in China. Especially in the planning and construction of urban cultural grounds, since cultural buildings are kept for a longer time than general commercial or civil buildings, it is necessary to avoid as much as possible the destruction by natural forces, such as wind, too violent crust movements, etc. Therefore, in the construction of urban cultural space, the selection of a proper geographical position for the planning and construction of a cultural land is particularly critical.
Further, a place having a high degree of correlation with the peripheral ridge shape is damaged by natural force to a much lesser degree than a place having a low degree of correlation with the peripheral ridge shape. For example, a location with four surrounding mountains is damaged by wind much less than a location without four mountains, or a location facing a mountain (valley) in two orthogonal axes is damaged by wind much less than a location without four mountains.
However, there is no scientific and reasonable method for determining the planning location of the urban cultural land according to the degree of association with the surrounding mountains.
Aiming at the technical problem that a scientific and reasonable method for determining the planning place of the urban culture land according to the degree of association with the surrounding mountain shapes is lacked in the prior art, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the disclosure provides a site selection method, a site selection device and a storage medium for urban cultural land planning, which at least solve the technical problem that the prior art lacks a method for scientifically and reasonably determining a planned site of an urban cultural land according to the degree associated with a surrounding mountain shape.
According to an aspect of the disclosed embodiments, there is provided a site selection method for urban cultural land planning, including: acquiring terrain data related to urban terrain; determining a city mountain relevance degree of a plurality of places of the city according to the terrain data, wherein the city mountain relevance degree is used for indicating the degree of the plurality of places of the city associated with the surrounding mountains; selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of a city; and selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
According to another aspect of the embodiments of the present disclosure, there is also provided a storage medium including a stored program, wherein the method of any one of the above is performed by a processor when the program is executed.
According to another aspect of the embodiments of the present disclosure, there is also provided an address selecting device for urban cultural land planning, including: an acquisition module for acquiring terrain data related to urban terrain; the determining module is used for determining city mountain association degrees of a plurality of places of the city according to the terrain data, wherein the city mountain association degrees are used for indicating the degree of association between the plurality of places of the city and the surrounding mountains; the system comprises a first selection module, a second selection module and a third selection module, wherein the first selection module is used for selecting a place with city mountain relevance meeting a preset condition from a plurality of places of a city; and the second selection module is used for selecting the places of the non-cultural land from the places meeting the preset conditions as planning places of the urban cultural land.
According to another aspect of the embodiments of the present disclosure, there is also provided an address selecting device for urban cultural land planning, including: a processor; and a memory coupled to the processor for providing instructions to the processor for processing the following processing steps: acquiring terrain data related to urban terrain; determining a city mountain relevance degree of a plurality of places of the city according to the terrain data, wherein the city mountain relevance degree is used for indicating the degree of the plurality of places of the city associated with the surrounding mountains; selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of a city; and selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
In the embodiment of the disclosure, topographic data related to urban terrain is obtained firstly, then according to the topographic data, city mountain relevance degrees of a plurality of places of a city are determined, then places with the city mountain relevance degrees meeting a preset condition are selected from the plurality of places of the city, and finally places of non-cultural land are selected from the places meeting the preset condition to be used as planning places of urban cultural land. By the method, the technical effect of scientifically and reasonably selecting the place with the lowest destruction degree of natural force as the planning place of the urban cultural land according to the determined city mountain relevance degree by well combining the natural mountains and waters around the city can be achieved. And the technical problem that a scientific and reasonable method for determining the planning place of the urban culture land according to the degree of association with the surrounding mountain shapes is lacked in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:
fig. 1 is a block diagram of a hardware structure of a computer terminal for implementing the method according to embodiment 1 of the present disclosure;
fig. 2 is a flow chart of a site selection method for urban cultural land planning according to a first aspect of embodiment 1 of the present disclosure;
fig. 3 is a topographic map of the city of sienna according to the first aspect of embodiment 1 of the present disclosure;
FIG. 4 is a schematic diagram of an east-west hill fit function of Xian City according to a first aspect of embodiment 1 of the present disclosure;
FIG. 5 is a schematic diagram showing a partial enlargement of a fitting function of an east-west mountain shape of Xian City according to a first aspect of embodiment 1 of the present disclosure;
fig. 6 is a three-dimensional schematic diagram of a first parameter matrix according to a first aspect of embodiment 1 of the present disclosure;
fig. 7 is a two-dimensional schematic diagram of a first parameter matrix according to a first aspect of embodiment 1 of the present disclosure;
fig. 8 is a schematic diagram of a coordinate system rotation according to the first aspect of embodiment 1 of the present disclosure;
fig. 9 is a schematic diagram of an addressing device for urban cultural land planning according to embodiment 2 of the disclosure; and
fig. 10 is a schematic diagram of a site selection device for urban cultural land planning according to embodiment 3 of the present disclosure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings 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 disclosure described herein are capable of operation in sequences other than those illustrated or otherwise 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.
Example 1
According to the present embodiment, there is provided a method embodiment of a method for site selection for urban cultural land planning, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
The method provided by the embodiment can be executed in a mobile terminal, a computer terminal or a similar operation device. Fig. 1 shows a block diagram of a hardware structure of a computer terminal (or mobile device) for implementing a site selection method for urban cultural land planning. As shown in fig. 1, the computer terminal 10 (or mobile device 10) may include one or more (shown as 102a, 102b, … …, 102 n) processors 102 (the processors 102 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 104 for storing data, and a transmission module 106 for communication functions. Besides, the method can also comprise the following steps: a display, an input/output interface (I/O interface), a Universal Serial Bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power source, and/or a camera. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
It should be noted that the one or more processors 102 and/or other data processing circuitry described above may be referred to generally herein as "data processing circuitry". The data processing circuitry may be embodied in whole or in part in software, hardware, firmware, or any combination thereof. Further, the data processing circuit may be a single stand-alone processing module, or incorporated in whole or in part into any of the other elements in the computer terminal 10 (or mobile device). As referred to in the disclosed embodiments, the data processing circuit acts as a processor control (e.g., selection of a variable resistance termination path connected to the interface).
The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the addressing method for city cultural land planning in the embodiment of the present disclosure, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, implementing the aforementioned addressing method for city cultural land planning of the application program. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10 (or mobile device).
It should be noted here that in some alternative embodiments, the computer device (or mobile device) shown in fig. 1 described above may include hardware elements (including circuitry), software elements (including computer code stored on a computer-readable medium), or a combination of both hardware and software elements. It should be noted that fig. 1 is only one example of a particular specific example and is intended to illustrate the types of components that may be present in the computer device (or mobile device) described above.
Under the operating environment, according to a first aspect of the present embodiment, there is provided a site selection method for urban cultural land planning, where fig. 2 shows a flow chart of the method, and with reference to fig. 2, the method includes:
s202: acquiring terrain data related to urban terrain;
s204: determining a city mountain relevance degree of a plurality of places of the city according to the terrain data, wherein the city mountain relevance degree is used for indicating the degree of the plurality of places of the city associated with the surrounding mountains;
s206: selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of a city; and
s208: and selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
As mentioned in the background, how to combine the mountain-shape around the city well in the planning process of the city in china is one of the primary factors to be considered. Especially in the planning and construction of urban cultural grounds, since cultural buildings are kept for a longer time than general commercial or civil buildings, it is necessary to avoid as much as possible the destruction by natural forces, such as wind, too violent crust movements, etc. Therefore, in the construction of urban cultural space, the selection of a proper geographical position for the planning and construction of a cultural land is particularly critical. Further, a place having a high degree of correlation with the peripheral ridge shape is damaged by natural force to a much lesser degree than a place having a low degree of correlation with the peripheral ridge shape. For example, a location with four surrounding mountains is damaged by wind much less than a location without four mountains, or a location facing a mountain (valley) in two orthogonal axes is damaged by wind much less than a location without four mountains. However, there is no scientific and reasonable method for determining the planning location of the urban cultural land according to the degree of association with the surrounding mountains.
In view of the problems in the background art, as shown in fig. 2, in the present embodiment, first, topographic data related to urban topography is acquired. For example, a DEM digital elevation topography of a city to be planned (e.g., the city of sienna) is acquired as topographic data relating to the city of sienna. Wherein fig. 3 shows a topographic map of the city of west ampere. Then, according to the acquired topographic data of the city, city mountain relevance degrees of a plurality of places of the city are determined. Wherein the city mountain relevance is used to indicate a degree to which a plurality of locations of a city are associated with a surrounding mountain shape.
Further, after determining the city mountain relevance degrees of the plurality of places of the good city, it is necessary to select a place, of which the city mountain relevance degrees satisfy a predetermined condition, from the plurality of places of the city. The preset condition may be that the city mountain relevance satisfies a predetermined threshold. Since the sites that have been used as cultural sites are no longer within the range of the planned sites, it is necessary to select sites of non-cultural sites as planned sites of urban cultural sites from sites satisfying predetermined conditions.
Therefore, in the present embodiment, first, topographic data related to urban terrain is acquired, then, according to the topographic data, city mountain relevance degrees of a plurality of places of a city are determined, then, a place with the city mountain relevance degree satisfying a predetermined condition is selected from the plurality of places of the city, and finally, a place of non-cultural land is selected from the places satisfying the predetermined condition as a planning place of the urban cultural land. By the method, the technical effect of scientifically and reasonably selecting the place with the lowest destruction degree of natural force as the planning place of the urban cultural land according to the determined city mountain relevance degree by well combining the natural mountains and waters around the city can be achieved. And the technical problem that a scientific and reasonable method for determining the planning place of the urban culture land according to the degree of association with the surrounding mountain shapes is lacked in the prior art is solved.
In addition, since city planning in combination with natural mountains is an excellent tradition of city planning in China, the construction of city culture space is a main task of city planning, "seeing the mountain and seeing the water" is also an important target of city culture space construction. Therefore, the city pattern and the culture space of the key area should be associated with the surrounding mountains. Based on this, the site selection method for planning urban cultural land mainly determines the planning location of the urban cultural land according to the association degree of the urban mountains, namely the association degree of the urban layout and the surrounding mountains, and plays an important role in guiding the planning and construction of the urban cultural land at present. And the city mountain relevance is an important index for cultural land system planning, and is a method for evaluating, planning and monitoring city culture space distribution. The correspondence between the urban pattern and the surrounding large-scale mountain landscape is the embodiment of the traditional urban planning value concept in China, namely, the establishment of the mountain order provides a basis for the construction of the urban pattern and the determination of key buildings. For a city, mountains in the range of four positive quarters and four corners around the city are natural coordinates for building the city. The city mountain relevance of a plurality of places in a city is a scientific index of the mountain-water order, and the result reflects the degree of relevance between the city layout and surrounding mountain shapes. In addition, the site selection method for urban cultural land planning provided by the embodiment can also assist in site selection of other land plans, such as site selection of commercial land and civil land planning.
Optionally, the operation of determining a city mountain relevance degree of a plurality of places of the city according to the terrain data comprises: determining a first fitting function of mountain shapes around the city in a first axial direction of the city; determining a second fitting function of the mountain shapes around the city in a second axial direction of the city, wherein the second axial direction and the first axial direction are orthogonal to each other; and determining the city mountain relevance of a plurality of places of the city according to the first fitting function and the second fitting function.
Specifically, it is first necessary to select two axial directions orthogonal to each other in a city. For example, but not limited to, selecting a main orientation of a city, using an ellipse to cover a contour of the city, finding a main axis of the city, namely: the long axis and the short axis of the ellipse are respectively the main axes of the city. Taking the west ampere city as an example, the main axial directions of the west ampere city are the north-south axial direction mainly comprising the north-south avenue and the east-west axial direction mainly comprising the east-west avenue. Wherein, fig. 3 exemplarily shows the topography around the city of sienna. Referring to fig. 3, for example and without limitation, the first axial direction may be a north-south direction and the second axial direction orthogonal to the first axial direction may be an east-west direction, and then a first fitting function of the mountains around the west ampere city in the north-south direction of the west ampere city and a second fitting function of the mountains around the west ampere city in the east-west direction of the west ampere city are determined. Fig. 4 is a schematic diagram illustrating an east-west mountain fitting function of sienna city. FIG. 5 is a partially enlarged schematic diagram illustrating an example fitting function of an east-west mountain shape of Xian; and then determining the city mountain relevance of a plurality of places of the city according to the determined first fitting function and the second fitting function. Thus, in this way, the degree of association between the city of sienna and the surrounding mountain shape can be scientifically and reasonably determined.
Optionally, the operation of determining a city mountain relevance of a plurality of locations of a city according to the first fitting function and the second fitting function includes: discretizing the first fitting function, and determining a plurality of first fitting function values distributed along the first axial direction; discretizing the second fitting function, and determining a plurality of second fitting function values distributed along the second axial direction; performing cross product operation on the first fitting function value and the second fitting function value; and determining the city mountain relevance degrees of the multiple places according to the first parameter matrix obtained by cross product operation.
Specifically, it is necessary to discretize the first fitting function, determine a plurality of first fitting function values distributed in the first axial direction, and discretize the second fitting function, and determine a plurality of second fitting function values distributed in the second axial direction. And respectively taking points in a first axial direction and a second axial direction at an interval N (N is the accuracy of the DEM digital elevation topographic map), and respectively substituting the points into a first fitting function and a second fitting function, so as to respectively determine a plurality of first fitting function values distributed along the first axial direction and a plurality of second fitting function values distributed along the second axial direction.
And further, performing cross product operation on the first fitting function value and the second fitting function value, and determining the city mountain relevance of a plurality of places according to a first parameter matrix obtained by the cross product operation. For example, referring to fig. 3, taking west ampere as an example, a first parameter matrix is obtained by performing a cross product operation with east longitude 108.7010534179 as an east-west section and north latitude 109.7585821742 as a south-north section. Wherein fig. 6 exemplarily shows a three-dimensional schematic view of the first parameter matrix, and fig. 7 exemplarily shows a two-dimensional schematic view of the first parameter matrix.
Furthermore, an absolute value is taken from the element values of the elements in the first parameter matrix, and the element values of the elements in the first parameter matrix after the absolute value is taken are respectively the main indexes of the city mountain relevance of a plurality of sites in the city of west. If the element value is high, the city mountain correlation degree of the corresponding place is high, which indicates that the place corresponds to a peak (valley) and a peak (valley) in the first axial direction and the second axial direction, and indicates that the damage degree of the place by natural force is low. Thus, in this way, the degree of association between the Xian city and the surrounding mountain shape is further scientifically and reasonably determined.
In addition, known text and place POI points can be checked according to the parameter matrix, and the importance degree and the control degree rule of the text and place can be observed. And if the place corresponding to the high element value in the parameter matrix has no text land, marking the place and using the marked place as a future city planning reference. It should be further supplemented that if the city has only one mountain, the fitting function value in the axial direction without mountain is constant, if the city is surrounded by mountains on four sides, four fitting function values need to be calculated in two orthogonal axial directions at the same place, and then the maximum value among the four fitting function values is taken as the final fitting function value at the place.
Optionally, before performing a cross product operation on the first fitting function value and the second fitting function value, the method further includes: and respectively carrying out normalization processing on the first fitting function value and the second fitting function value.
Specifically, since the dimensions of the city-mountain relevance degrees between different cities are different, in order to make the city-mountain relevance degrees between different cities comparable, the first fitting function value and the second fitting function value need to be normalized respectively, so that the maximum value of the city-mountain relevance degrees of different cities is 1 or 100%. Therefore, in this way, the city mountain relevance degrees among different cities are comparable, and reasonable comparison and evaluation of the city mountain relevance degrees of different cities are facilitated.
Optionally, the operation of determining the city mountain relevance degrees of the multiple locations according to the first parameter matrix obtained by the cross product operation further includes: rotating a coordinate system formed by a first axial direction and a second axial direction by a plurality of angles, and determining a plurality of parameter matrixes corresponding to the coordinate systems of the plurality of angles respectively; and determining the city mountain relevance of a plurality of places according to the first parameter matrix and the plurality of parameter matrices.
Specifically, in order to make the determined city mountain relevance of the plurality of places more accurate and scientific, a coordinate system consisting of a first axial direction and a second axial direction is rotated by a plurality of angles. Fig. 8 shows a schematic diagram of the rotation of the coordinate system. Referring to fig. 8, a plurality of coordinate systems are obtained by rotating the coordinate system formed by the first axial direction and the second axial direction by 30 degrees, 45 degrees, and 60 degrees clockwise, respectively. A plurality of parameter matrices are then determined that correspond to the coordinate systems of the plurality of angles, respectively. The method for determining the plurality of parameter matrices may refer to the method for determining the first parameter matrix, and is not described herein again. And then determining the city mountain relevance of a plurality of places according to the first parameter matrix and the plurality of parameter matrices. Therefore, the accuracy and the scientificity of the determined city mountain relevance degrees of the multiple places are further guaranteed through the mode of determining the city mountain relevance degrees of the multiple places of the city through the multiple parameter matrixes.
In addition, it should be noted that the number of rotations of the rotating coordinate system is not fixed, and the angle of each rotation is also not fixed, and the adjustment can be appropriately performed according to the specific relationship between different cities and surrounding mountain shapes.
Optionally, the operation of determining the city mountain relevance of the multiple locations according to the first parameter matrix and the multiple parameter matrices includes: selecting the element with the largest numerical value from the elements respectively corresponding to the same place in the first parameter matrix and the plurality of parameter matrices as a reference index; and determining the city mountain relevance of the plurality of places according to the reference index.
Specifically, the element with the largest numerical value is selected as the reference index from the elements corresponding to the same place in the first parameter matrix and the plurality of parameter matrices. And then determining the city mountain relevance of the plurality of places according to the reference index. Therefore, the accuracy and the scientificity of the determined city mountain relevance of the plurality of places are further guaranteed.
Optionally, the operation of determining a first fitting function of a mountain shape around the city in a first axial direction of the city comprises: determining a first orthographic projection curve of mountain shapes around a city in a first axial direction of the city; and fitting the first orthographic projection curve by using a sine function to obtain a first fitting function.
Specifically, elevation sampling is carried out by using Localspace View software, profile analysis is carried out, and a first orthographic projection curve of a mountain shape around the city in the first axial direction of the city is determined. Then, main peaks around the city of west ampere are selected from the Localspace View to perform north-south profile analysis, the number of peak valley samples is selected to be 100, the sampling interval is 475.651 meters, a linear regression equation g1(x) in the north-south direction (namely the first axial direction) is obtained to be 0.5285 y +1422, and then a sine (Sin) function is used for fitting the linear regression equation g1(x) to obtain a first fitting function. Wherein the fitting function in the north-south direction (i.e. the first fitting function) is:
h1＝2191*sin(0.03079*y+0.01565)+629.9*sin(0.068*y+1.292)+ 320*sin(0.121*y+1.889)+93.87*sin(0.2288*y+3.392)+ 139.1*sin(0.1999*y-0.6571)+66.37*sin(0.3972*y+1.402)+ 77.47*sin(0.2952*y+1.444)+39.01*sin(0.4613*y-2.441)-(0.5285*y+ 1422)。
thus, in this way, the first fitting function can be obtained quickly and accurately.
Optionally, the operation of determining a second fitting function of the mountains around the city in a second axis direction of the city comprises: determining a second orthographic projection curve of mountain shapes around the city in the second axial direction of the city; and fitting the second orthographic projection curve by using the sine function to obtain a second fitting function.
Specifically, elevation sampling is carried out by using Localspace View software, profile analysis is carried out, and a second orthographic projection curve of a mountain shape around the city in the second axis direction of the city is determined. Then, main peaks around the city of west-ampere are selected from Localspace View to perform east-west profile analysis, the number of peak valley samples is selected to be 100, the sampling interval is 475.651 m, a linear regression equation g2(x) in the east-west direction (namely the second axis direction) is obtained to be 3.942 x +1102, then a sine (Sin) function is used for fitting the linear regression equation g2(x), a second fitting function is obtained, and the fitting function in the east-west direction (namely the second fitting function) is as follows:
h2＝3231*sin(0.03292*x-0.7645)+2665*sin(0.05988*x+0.8062)+ 1452*sin(0.09894+1.809)+485.1*sin(0.1296*x+3.445)+ 119.2*sin(0.5781*x+1.96)+115.7*sin(0.6297*x-2.82)+ 154.6*sin(0.231*x+0.695)+03.6*sin(0.4514*x-1.639)-(3.942*x+1102)。
thus, in this way, the second fitting function can be obtained quickly and accurately.
Further, in the present embodiment, the first forward projection curve and the second forward projection curve are respectively fitted by using a sine function, but the present invention is not limited thereto, and other common functions that can be fitted to the first forward projection curve and the second forward projection curve may be used.
In addition, the site selection method for urban cultural land planning described in this embodiment is specifically implemented as follows:
step one, judging the main orientation of a city, and finding out the main axial direction of the city by using a mode of covering the contour of the city with an ellipse, namely: the major and minor axes of the ellipse are respectively the major axes X, Y of the city.
Selecting a DEM digital elevation topographic map as a data source, performing elevation sampling by using Localspace View software, performing section analysis, performing orthographic projection of mountains around a city in the main axial direction X, Y to obtain a mountain-shaped orthographic projection curve, and fitting the mountain-shaped orthographic projection curve by using a sine (Sin) function to respectively obtain a fitting function MX(x) And MY(y)。
Step three, taking points on X and Y axes by an interval N (N is DEM essence)Degree), substituting into fitting function MX(x) And MY(y) obtaining a corresponding value MX(xi)，MY(yi)。
Step four, obtaining a function value MX(xi)MY(yi) are respectively normalized to obtain a function M'X(xi)， M'Y(yi). (if the city has only one direction mountain, the axial function value without mountain is constant K, K is more than 0 and less than or equal to 1).
Step five, passing through M'X(xi)，M'Y(yi) Cross product operation of (c) is the intersection (x)i,yi) And (4) scoring to form a parameter matrix.
Step six, mixing | M'X(xi)×M'Y(yi) I is used as a main index C of the association degree C of the city and the city mountainx。
Step seven, the main city axial direction X, Y is used as a reference system S1. The reference system is rotated clockwise by 30 degrees, 45 degrees and 60 degrees respectively to obtain a reference system S2、S3、S4。
Step eight, obtaining a reference system S2、S3、S4In the method, the second step to the sixth step are respectively repeated to obtain a reference index C of the city mountain relevance degree Cy,
And step nine, checking the known text and land POI points according to the parameter matrix, and observing the importance degree of the cultural land and the rule of spatial distribution. If the high-score points in the parameter matrix have no cultural land, marking is carried out and used as a future city planning reference. The method can objectively and quantitatively evaluate the control degree of urban and cultural land and mountain and river environment, and simultaneously plays a certain reference role in urban cultural land planning.
Further, referring to fig. 1, according to a second aspect of the present embodiment, a storage medium 104 is provided. The storage medium 104 comprises a stored program, wherein the method of any of the above is performed by a processor when the program is run.
Therefore, by the method, the embodiment achieves the following technical effects:
1) the method for selecting the site for the urban cultural land planning is very convenient and fast in implementation steps.
2) The site selection method for urban cultural land planning has the advantages of high determination speed, simple realization, no need of a complex equation, and simplicity and easiness in operation.
3) The site selection method for urban cultural land planning can objectively and quantitatively evaluate the control degree of urban and cultural land and mountain environment, and meanwhile plays a certain reference role in urban cultural land planning.
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.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
Fig. 9 shows an addressing device 900 for urban cultural land planning according to the present embodiment, which device 900 corresponds to the method according to the first aspect of embodiment 1. Referring to fig. 9, the apparatus 900 includes: an obtaining module 910, configured to obtain terrain data related to urban terrain; a determining module 920, configured to determine city mountain relevance degrees of multiple locations of the city according to the terrain data, where the city mountain relevance degrees are used to indicate degrees to which the multiple locations of the city are associated with the surrounding mountains; a first selecting module 930, configured to select a place with a city mountain relevance degree satisfying a predetermined condition from a plurality of places of a city; and a second selection module 940 for selecting a place of the non-cultural land from the places satisfying the predetermined condition as a planned place of the urban cultural land.
Optionally, the determining module 920 includes: a first determination submodule for determining a first fitting function of a mountain shape around a city in a first axial direction of the city; a second determining submodule, configured to determine a second fitting function of a mountain shape around the city in a second axial direction of the city, where the second axial direction and the first axial direction are orthogonal to each other; and the third determining submodule is used for determining the city mountain relevance of a plurality of places of the city according to the first fitting function and the second fitting function.
Optionally, the third determining sub-module includes: the first determining unit is used for discretizing the first fitting function and determining a plurality of first fitting function values distributed along the first axial direction; the second determining unit is used for discretizing the second fitting function and determining a plurality of second fitting function values distributed along the direction of the second axis; the cross product operation unit is used for carrying out cross product operation on the first fitting function value and the second fitting function value; and the third determining unit is used for determining the city mountain relevance of the plurality of places according to the first parameter matrix obtained by cross product operation.
Optionally, the third determining sub-module further includes: and the normalization unit is used for respectively normalizing the first fitting function value and the second fitting function value before performing cross product operation on the first fitting function value and the second fitting function value.
Optionally, the third determining unit includes: a first determining subunit configured to rotate a coordinate system formed by the first axial direction and the second axial direction by a plurality of angles, and determine a plurality of parameter matrices corresponding to the coordinate systems of the plurality of angles, respectively; and the second determining subunit is used for determining the city mountain relevance degrees of the plurality of places according to the first parameter matrix and the plurality of parameter matrices.
Optionally, the second determining subunit includes: a selection unit configured to select, as a reference index, an element having a largest numerical value from among elements corresponding to the same location in the first parameter matrix and the plurality of parameter matrices, respectively; and a determination unit configured to determine the city mountain relevance degrees of the plurality of locations according to the reference index.
Optionally, the first determining sub-module includes: a fourth determination unit configured to determine a first orthographic projection curve of a mountain shape around the city in the first axial direction of the city; and the first fitting unit is used for fitting the first orthographic projection curve by using the sine function to obtain a first fitting function.
Optionally, the second determining sub-module includes: a fifth determination unit configured to determine a second orthographic projection curve of a mountain shape around the city in a second axial direction of the city; and the second fitting unit is used for fitting the second orthographic projection curve by using the sine function to obtain a second fitting function.
Therefore, according to the present embodiment, the present embodiment first obtains the topographic data related to the urban terrain, then determines the city-mountain relevance degrees of the multiple locations of the city according to the topographic data, then selects the locations with the city-mountain relevance degrees satisfying the predetermined condition from the multiple locations of the city, and finally selects the locations of the non-cultural land from the locations satisfying the predetermined condition as the planning locations of the urban cultural land. By the method, the technical effect of scientifically and reasonably selecting the place with the lowest destruction degree of natural force as the planning place of the urban cultural land according to the determined city mountain relevance degree by well combining the natural mountains and waters around the city can be achieved. And the technical problem that a scientific and reasonable method for determining the planning place of the urban culture land according to the degree of association with the surrounding mountain shapes is lacked in the prior art is solved.
Example 3
Fig. 10 shows an addressing device 1000 for urban cultural land planning according to the present embodiment, the device 1000 corresponding to the method according to the first aspect of embodiment 1. Referring to fig. 10, the apparatus 1000 includes: a processor 1010; and a memory 1020 coupled to the processor 1010 for providing instructions to the processor 1010 to process the following process steps: acquiring terrain data related to urban terrain; determining a city mountain relevance degree of a plurality of places of the city according to the terrain data, wherein the city mountain relevance degree is used for indicating the degree of the plurality of places of the city associated with the surrounding mountains; selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of a city; and selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
Optionally, the operation of determining a city mountain relevance degree of a plurality of places of the city according to the terrain data comprises: determining a first fitting function of mountain shapes around the city in a first axial direction of the city; determining a second fitting function of the mountain shapes around the city in a second axial direction of the city, wherein the second axial direction and the first axial direction are orthogonal to each other; and determining the city mountain relevance of a plurality of places of the city according to the first fitting function and the second fitting function.
Optionally, the operation of determining a city mountain relevance of a plurality of locations of a city according to the first fitting function and the second fitting function includes: discretizing the first fitting function, and determining a plurality of first fitting function values distributed along the first axial direction; discretizing the second fitting function, and determining a plurality of second fitting function values distributed along the second axial direction; performing cross product operation on the first fitting function value and the second fitting function value; and determining the city mountain relevance degrees of the multiple places according to the first parameter matrix obtained by cross product operation.
Optionally, the memory 1020 is further configured to provide the processor 1010 with instructions to process the following processing steps: before the cross product operation is carried out on the first fitting function value and the second fitting function value, normalization processing is respectively carried out on the first fitting function value and the second fitting function value.
Optionally, the operation of determining the city mountain relevance degrees of the multiple locations according to the first parameter matrix obtained by the cross product operation further includes: rotating a coordinate system formed by a first axial direction and a second axial direction by a plurality of angles, and determining a plurality of parameter matrixes corresponding to the coordinate systems of the plurality of angles respectively; and determining the city mountain relevance of a plurality of places according to the first parameter matrix and the plurality of parameter matrices.
Optionally, the operation of determining the city mountain relevance of the multiple locations according to the first parameter matrix and the multiple parameter matrices includes: selecting the element with the largest numerical value from the elements respectively corresponding to the same place in the first parameter matrix and the plurality of parameter matrices as a reference index; and determining the city mountain relevance of the plurality of places according to the reference index.
Optionally, the operation of determining a first fitting function of a mountain shape around the city in a first axial direction of the city comprises: determining a first orthographic projection curve of mountain shapes around a city in a first axial direction of the city; and fitting the first orthographic projection curve by using a sine function to obtain a first fitting function.
Optionally, the operation of determining a second fitting function of the mountains around the city in a second axis direction of the city comprises: determining a second orthographic projection curve of mountain shapes around the city in the second axial direction of the city; and fitting the second orthographic projection curve by using the sine function to obtain a second fitting function.
Therefore, according to the present embodiment, the present embodiment first obtains the topographic data related to the urban terrain, then determines the city-mountain relevance degrees of the multiple locations of the city according to the topographic data, then selects the locations with the city-mountain relevance degrees satisfying the predetermined condition from the multiple locations of the city, and finally selects the locations of the non-cultural land from the locations satisfying the predetermined condition as the planning locations of the urban cultural land. By the method, the technical effect of scientifically and reasonably selecting the place with the lowest destruction degree of natural force as the planning place of the urban cultural land according to the determined city mountain relevance degree by well combining the natural mountains and waters around the city can be achieved. And the technical problem that a scientific and reasonable method for determining the planning place of the urban culture land according to the degree of association with the surrounding mountain shapes is lacked in the prior art is solved.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
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 embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. 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 integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a 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 instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
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 site selection method for urban cultural land planning is characterized by comprising the following steps:
acquiring terrain data related to urban terrain;
determining a city-mountain relevance of a plurality of locations of the city from the terrain data, wherein the city-mountain relevance is indicative of a degree to which the plurality of locations of the city are associated with a perimeter mountain shape;
selecting a place with city mountain relevance satisfying a preset condition from a plurality of places of the city; and
and selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
2. The method of claim 1, wherein determining a city-mountain relevance for a plurality of locations of the city based on the terrain data comprises:
determining a first fitting function of a mountain shape around the city in a first axial direction of the city;
determining a second fitting function of chevrons around the city in a second axial direction of the city, wherein the second axial direction and the first axial direction are orthogonal to each other; and
and determining the city mountain relevance of a plurality of places of the city according to the first fitting function and the second fitting function.
3. The method of claim 2, wherein the operation of determining a city-mountain relevance for a plurality of locations of the city according to the first fit function and the second fit function comprises:
discretizing the first fitting function, and determining a plurality of first fitting function values distributed along the first axial direction;
discretizing the second fitting function, and determining a plurality of second fitting function values distributed along the second axial direction;
performing cross product operation on the first fitting function value and the second fitting function value; and
and determining the city mountain relevance degrees of the plurality of places according to a first parameter matrix obtained by the cross product operation.
4. The method of claim 3, further comprising, prior to cross product the first fit function value and the second fit function value: and respectively carrying out normalization processing on the first fitting function value and the second fitting function value.
5. The method of claim 4, wherein the operation of determining the city mountain relevance of the plurality of locations according to the first parameter matrix obtained by the cross product operation comprises:
rotating a coordinate system formed by the first axial direction and the second axial direction by a plurality of angles, and determining a plurality of parameter matrixes corresponding to the coordinate systems of the plurality of angles respectively; and
and determining the city mountain relevance of the plurality of places according to the first parameter matrix and the plurality of parameter matrices.
6. The method of claim 5, wherein determining the city-mountain relatedness of the plurality of locations based on the first parameter matrix and the plurality of parameter matrices comprises:
selecting the element with the largest numerical value from the elements respectively corresponding to the same place in the first parameter matrix and the plurality of parameter matrices as a reference index; and
and determining the city mountain relevance of the plurality of places according to the reference index.
7. The method of claim 2, wherein the operation of determining a first fit function of a chevron around the city in a first axial direction of the city comprises:
determining a first orthographic projection curve of a mountain shape around the city in a first axial direction of the city; and
and fitting the first orthographic projection curve by using a sine function to obtain the first fitting function.
8. The method of claim 2, wherein the operation of determining a second fit function of a mountain shape around the city in a direction of a second axis of the city comprises:
determining a second orthographic projection curve of mountain shapes around the city in a second axial direction of the city; and
and fitting the second orthographic projection curve by using a sine function to obtain a second fitting function.
9. A storage medium comprising a stored program, wherein the method of any one of claims 1 to 8 is performed by a processor when the program is run.
10. A site selection device for urban cultural land planning is characterized by comprising:
an acquisition module for acquiring terrain data related to urban terrain;
a determining module, configured to determine, according to the terrain data, city mountain relevance of a plurality of locations of the city, where the city mountain relevance is used to indicate a degree to which the plurality of locations of the city are associated with a surrounding mountain shape;
the first selection module is used for selecting a place with city mountain relevance meeting a preset condition from a plurality of places of the city; and
and the second selection module is used for selecting the places of the non-cultural land from the places meeting the preset conditions as the planning places of the urban cultural land.
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