CN117910662B - Urban building group green land arrangement optimization method - Google Patents
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Abstract
The invention relates to the technical field of urban planning, in particular to an urban building group green space arrangement optimization method, which comprises the following steps: s1, acquiring urban area maps, urban area topographic maps, building height data and longitude and latitude coordinate data of a city; s2, determining a green land arrangeable area of the city; s3, determining illumination data in the green land arrangeable area according to the urban topographic map, the building height data and the longitude and latitude coordinate data; s4, dividing the green land arrangeable area into a plurality of illumination type areas according to illumination data, and dividing the areas with the same and/or similar illumination conditions into the same illumination type area; s5, matching green plants matched with the illumination conditions of the illumination type areas. The method can give guidance and reference for an integral green land planning scheme from the global point of view, effectively ensure the ecological regulation function of the green land, ensure the compatibility and the matching of the planning scheme and the local actual environment, reduce the labor intensity of workers and promote the reasonable arrangement of the green land.
Description
Technical Field
The invention relates to the technical field of urban planning, in particular to an urban building group green space arrangement optimization method.
Background
In the conventional urban building group green space arrangement work, design planning is basically carried out by full manpower, the workload is large, and the integrity and the global performance of the planning work cannot be effectively considered. In addition, the problem of poor matching of a planning scheme and the local actual environment situation often occurs in planning and design, so that the decoration effect of the green land is often far higher than the greening effect of the green land, and the ecological efficiency of the green land is weakened. The above problem is particularly pronounced in larger scale design planning works, such as green space planning for the whole city.
In view of this, the present application has been made.
Disclosure of Invention
The invention aims to provide an urban building group green space arrangement optimization method, which can give guidance and reference for an integral green space planning scheme from the global point of view, effectively ensure the ecological regulation function of the green space, ensure the compatibility and the matching of the planning scheme and the local actual environment, reduce the labor intensity of workers and promote the reasonable arrangement of the green space.
Embodiments of the present invention are implemented as follows:
An urban building group green space arrangement optimization method comprises the following steps:
S1, acquiring urban area maps, urban area topographic maps, building height data and longitude and latitude coordinate data of a city;
S2, determining a green land arrangeable area of the city;
s3, determining illumination data in the green land arrangeable area according to the urban topographic map, the building height data and the longitude and latitude coordinate data;
s4, dividing the green land arrangeable area into a plurality of illumination type areas according to illumination data, and dividing the areas with the same and/or similar illumination conditions into the same illumination type area;
s5, matching green plants matched with the illumination conditions of the illumination type areas.
Further, in step S1, the method further includes obtaining building exterior wall type data;
In step S3, when the illumination data is determined, light reflection performance data of the building exterior wall is determined according to the building exterior wall type data at the same time, and illumination data in the green land arrangeable area is determined according to the urban area topography, the building height data, the light reflection performance data and the longitude and latitude coordinate data.
Further, step S5 includes the steps of:
S51, determining road distribution and road types according to the urban area map;
S52, determining a road leaning area in the green land arrangeable area according to the road distribution and the road type;
s53, determining noise reduction and dust prevention requirements according to road distribution and road types, and matching green plants for the road-leaning areas according to the noise reduction and dust prevention requirements and corresponding illumination conditions;
And S54, matching green plants matched with the illumination conditions of the regions outside the road leaning regions in the green land arrangeable region according to each illumination type region.
Further, step S2 further includes: dividing a green land arrangeable area into a plurality of unit areas;
In step S4, when determining the illumination type area, dividing the illumination type area by using the unit area as a basic unit;
the urban building group green space arrangement optimizing method further comprises a step S6, and the step S6 comprises the following steps:
S61, determining the area of continuous planting of the same green plants as an independent area;
S62, setting a first area threshold, and determining an independent area with the area smaller than or equal to the first area threshold as an area to be evaluated;
S63, determining an evaluation circle by using the radiation radius with the center of the area to be evaluated as the center of the circle, wherein the radiation radius is positively correlated with the area of the area to be evaluated;
s64, if two evaluation circles are intersected and the green plants planted in the two areas to be evaluated corresponding to the two evaluation circles are the same, determining two endpoints of the intersection area of the two evaluation circles;
S65, connecting the two corners with two end points of the intersection area respectively in the corresponding area to be evaluated, so that the sum of the lengths of the two connecting lines is minimum;
s66, in the two areas to be evaluated, four connecting lines and the two areas to be evaluated jointly enclose to form a transition area, and the green plants in the complete unit area in the transition area are replaced by the same green plants in the two areas to be evaluated.
Further, step S6 further includes:
S67, setting a second area threshold value, wherein the second area threshold value is smaller than the first area threshold value, determining an independent area with the area smaller than or equal to the second area threshold value, and replacing the green plants in the independent area with the green plant types in the independent area adjacent to the independent area.
The technical scheme of the embodiment of the invention has the beneficial effects that:
The urban building group green land arrangement optimization method provided by the embodiment of the invention combines the actual climate condition and the weather condition, simultaneously considers the actual urban layout, comprehensively evaluates the growing environment of the green plants, selects the types of the green plants according to the illumination type areas divided in the way, can effectively ensure the growing illumination requirements of the green plants, ensures the growing condition and the health degree of the green plants, and is favorable for the green plants to fully play the ecological role of the green plants.
In general, the urban building group green space arrangement optimization method provided by the embodiment of the invention can give guidance and reference to the integral green space planning scheme from the global point of view, effectively ensure the ecological regulation function of the green space, ensure the compatibility and the matching of the planning scheme and the local actual environment, reduce the labor intensity of workers and promote the reasonable arrangement of the green space.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the distribution relationship between an independent area A and an independent area B;
FIG. 2 is a schematic diagram of an evaluation circle;
FIG. 3 is a schematic illustration of determining intersection regions;
FIG. 4 is a schematic view of a transition region;
Fig. 5 is a schematic diagram of the adjustment result of the planting scheme.
Reference numerals illustrate:
A. B1, B2, B3-independent region.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
It is to be understood that the terms "system," "apparatus," "unit," "module," and/or the like are used in this specification to distinguish one element, component, section, or assembly from another element, component, section, or assembly. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
As used in this specification and the claims, the terms "a," "an," "the," and the like are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
The flowcharts used in this specification are used to describe the operations performed by the system according to embodiments of the specification. It will be appreciated that the operations of the steps are not necessarily performed in a sequential order. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
Referring to fig. 1, the embodiment provides an urban building group green space arrangement optimizing method, which includes the following steps:
s1, acquiring urban area maps, urban area topographic maps, building height data and longitude and latitude coordinate data of cities. Urban maps employ two-dimensional plan views for reflecting the layout of cities, including but not limited to the distribution of roads, buildings. Urban topography is used to reflect topography in urban areas, such as whether it is level land (plain area) or mountain land (mountain city), because the topography affects the illumination of the ground. The building height data records the heights of all buildings in the urban area, and the influence degree of the buildings with different heights on ground illumination is different. The longitude and latitude coordinate data determines the climate type and weather condition of the city.
S2, determining a green land arrangeable area of the city. The method comprises the steps of determining an area which can be used for planting green plants to form green lands in an urban area map according to actual needs, namely a green land arrangeable area.
And S3, determining illumination data in the green land arrangeable area according to the urban topographic map, the building height data and the longitude and latitude coordinate data. The illumination of each location in the green space placeable area can be calculated based on the climate type, weather data, topography, and shielding of the building, including but not limited to: the green space can be provided with the change law of illumination intensity of different positions in the area along with time.
S4, dividing the green land arrangeable area into a plurality of illumination type areas according to illumination data, and dividing the areas with the same and/or similar illumination conditions into the same illumination type area. The standard with the same and similar illumination conditions can be flexibly set and modified according to actual conditions.
S5, matching green plants matched with the illumination conditions of the illumination type areas. The illumination conditions of the areas divided into the same illumination type areas are very similar, and the areas are suitable for the same type of green plants.
Through the design, the actual climate condition and the weather condition are combined, the urban actual layout is considered, the growth environment of the green plants is comprehensively evaluated, the types of the green plants are selected according to the illumination type areas divided in the way, the growth illumination requirements of the green plants can be effectively ensured, the growth vigor and the health degree of the green plants are ensured, and the green plants are favorable for fully playing the ecological role.
In general, the urban building group green space arrangement optimization method provided by the embodiment can give guidance and reference for an integral green space planning scheme from the global point of view, effectively guarantees the ecological regulation function of the green space, ensures the compatibility and the matching of the planning scheme and the local actual environment, reduces the labor intensity of workers and can promote the reasonable arrangement of the green space.
In this embodiment, in step S1, the method further includes obtaining building exterior wall type data;
In step S3, when the illumination data is determined, light reflection performance data of the building exterior wall is determined according to the building exterior wall type data at the same time, and illumination data in the green land arrangeable area is determined according to the urban area topography, the building height data, the light reflection performance data and the longitude and latitude coordinate data.
Considering that different types of building outer walls have different light reflection capacities, for example, glass outer walls have better reflection capacities, on the basis, a three-dimensional model of urban layout (including buildings) can be established, natural light irradiation directions are determined according to longitude and latitude of urban areas, and corresponding reflection coefficients are respectively matched for the different types of building outer walls, so that the actual illumination condition of the urban three-dimensional model on the ground under illumination can be calculated.
By the design, the illumination condition of urban ground can be reflected more truly.
Further, step S5 includes the steps of:
S51, determining road distribution and road types according to the urban area map. The road type may be a main road, a roadway, an auxiliary road, etc., and is not limited to one time, and width information may be marked for each road.
S52, determining a road leaning area in the green land arrangeable area according to the road distribution and the road type. The road-leaning area is an area close to the road, i.e., an area of the roadside.
S53, determining noise reduction and dust prevention requirements according to road distribution and road types, and matching green plants for the road-leaning areas according to the noise reduction and dust prevention requirements and corresponding illumination conditions. Generally, corresponding noise reduction and dust prevention requirements are arranged at two sides of a road, and the design flux of the road can be determined according to the width of the road, so that the road can be used as a reference for the noise reduction and dust prevention requirements. In general, the wider the road, the higher the noise reduction and dust prevention requirements. When green plants are planted in the road-leaning area, the green plants with noise reduction and dust prevention functions are required to be selected.
And S54, matching green plants matched with the illumination conditions of the regions outside the road leaning regions in the green land arrangeable region according to each illumination type region. After planting green plants with noise reduction and dust prevention functions in the road-leaning area, selecting matched green plants according to the illumination condition of other areas in the green land arrangeable area.
Further, step S2 further includes: the green land arrangeable area is divided into a number of unit areas. The size of the cell area may be flexibly adjusted according to practical needs, and is not particularly limited herein, and may be 1×1, and is not limited thereto.
Alternatively, the urban map may be divided into a plurality of unit areas, and then the unit areas are used as the minimum units to designate the green land arrangeable area.
In step S4, when determining the illumination type area, the division is performed with the unit area as a basic unit.
In the actual division, this may occur: most of the plants in a certain place are a green plants, but a small part of b green plants exist, and the distribution of the b green plants is also scattered, so that compared with the a green plants, the b green plants are scattered in a punctiform manner.
On the one hand, the situation can improve the planting difficulty, is unfavorable for the operation of the planted staff, on the other hand, the quantity of the green plants is small, scattered and attractive, and meanwhile, the purchasing is unfavorable.
In order to solve the above problems, the urban building group greenbelt arrangement optimizing method further includes step S6, and step S6 includes the steps of:
S61, determining the area of continuous planting of the same green plants as an independent area. As shown in fig. 1, most of the areas shown in the figure are continuously planted with a green plants, which are independent areas a, and scattered with a part of B green plants, which are independent areas B1, B2 and B3 respectively.
Setting a first area threshold, and determining an independent area with an area smaller than or equal to the first area threshold as an area to be evaluated. In actual work, the first area threshold value can be flexibly set according to actual needs. As shown in fig. 2, the areas of the independent areas B1, B2, and B3 are all smaller than or equal to the first area threshold, and therefore, the independent areas B1, B2, and B3 are all considered as the areas to be evaluated.
S63, determining an evaluation circle by using the radiation radius with the center of the area to be evaluated as the center, wherein the radiation radius is positively correlated with the area size of the area to be evaluated. That is, the larger the area of the region to be evaluated, the larger its corresponding radiation radius. The specific positive correlation between the radiation radius and the area of the region to be evaluated can be flexibly set according to actual requirements.
As shown in fig. 2, the evaluation circle B1 corresponds to the independent area B1, the evaluation circle B2 corresponds to the independent area B2, and the evaluation circle B3 corresponds to the independent area B3. The area of the independent area B1 is two unit areas, the area of the independent area B2 is four unit areas, and the area of the independent area B3 is one unit area, and therefore, the radius of the evaluation circle B2 > the radius of the evaluation circle B1 > the radius of the evaluation circle B3.
S64, if the two evaluation circles intersect and the green plants planted in the two areas to be evaluated corresponding to the two evaluation circles are the same, determining two endpoints of the intersection area of the two evaluation circles. As shown in fig. 3, the evaluation circle b1 and the evaluation circle b2 intersect, and the evaluation circle b3 also intersects the evaluation circle b2. Since the independent area B1, the independent area B2, and the independent area B3 are each planted with the B green plant, the two end points p1 and p2 of the intersection area of the evaluation circle B1 and the evaluation circle B2 are determined, and the two end points p3 and p4 of the intersection area of the evaluation circle B3 and the evaluation circle B2 are determined.
S65, connecting the two corners with two end points of the intersection area respectively in the corresponding area to be evaluated, so that the sum of the lengths of the two connecting lines is minimum. It should be noted that the "corner" of the region to be evaluated refers to the corner of the planar pattern formed by the unit regions, and the "corner" refers to the outer corner, excluding the inner corner. As shown in fig. 3, the independent area B1, the independent area B2, and the independent area B3 are rectangular areas composed of unit areas, and their "corners" are four corners of the rectangular areas. In order to minimize the sum of the lengths of the two connection lines, the angle m1 corresponds to p1, the angle m2 corresponds to p2, the angle m2 corresponds to p3, and the angle m3 corresponds to p 4.
Namely, the connection line: p1-m1, p2-m2, p3-m2, and p4-m3, a graph as shown in FIG. 4 was obtained.
S66, in the two areas to be evaluated, four connecting lines and the two areas to be evaluated jointly enclose to form a transition area, and the green plants in the complete unit area in the transition area are replaced by the same green plants in the two areas to be evaluated.
After filling, the pattern shown in fig. 5 is obtained, and the green implants in these filled cell areas are replaced with b green implants.
Through the design, the planting continuity and the aesthetic degree of the b green plants can be effectively improved, meanwhile, the b green plants are prevented from being scattered too sporadically, the purchasing difficulty is also reduced, and meanwhile, the b green plants are prevented from being too rare to lose the actual ecological effect.
On the other hand, step S6 further includes the steps of:
S67, setting a second area threshold value, wherein the second area threshold value is smaller than the first area threshold value, determining an independent area with the area smaller than or equal to the second area threshold value, and replacing the green plants in the independent area with the green plant types in the independent area adjacent to the independent area. The second area threshold value can be flexibly set according to actual needs, so that independent areas with too small areas can be directly ignored.
It should be noted that, step S6 is applicable to optimization of the green planting scheme in the area other than the road-leaning area in the green land arrangeable area.
In summary, the urban building group green space arrangement optimization method provided by the embodiment of the invention can give guidance and reference to the integral green space planning scheme from the global point of view, effectively ensure the ecological regulation function of the green space, ensure the compatibility and the matching of the planning scheme and the local actual environment, reduce the labor intensity of workers and promote the reasonable arrangement of the green space.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The urban building group green land arrangement optimizing method is characterized by comprising the following steps of:
S1, acquiring urban area maps, urban area topographic maps, building height data and longitude and latitude coordinate data of a city;
S2, determining a green land arrangeable area of the city;
S3, determining illumination data in the green land arrangeable area according to the urban topographic map, the building height data and the longitude and latitude coordinate data;
S4, dividing the green land arrangeable area into a plurality of illumination type areas according to the illumination data, and dividing the areas with the same and/or similar illumination conditions into the same illumination type area;
s5, matching green plants matched with the illumination conditions of the illumination type areas;
wherein, step S2 further comprises: dividing the green land arrangeable area into a plurality of unit areas; in step S4, when determining the illumination type area, dividing the illumination type area by using the unit area as a basic unit;
The urban building group green space arrangement optimization method further comprises a step S6, and the step S6 comprises the following steps:
S61, determining the area of continuous planting of the same green plants as an independent area;
s62, setting a first area threshold, and determining an independent area with an area smaller than or equal to the first area threshold as an area to be evaluated;
S63, determining an evaluation circle by using the radiation radius with the center of the region to be evaluated as the center of the circle, wherein the radiation radius is positively correlated with the area of the region to be evaluated;
s64, if two evaluation circles are intersected and the green plants planted in the two areas to be evaluated corresponding to the two evaluation circles are the same, determining two endpoints of the intersection area of the two evaluation circles;
s65, connecting two corners with two endpoints of the intersection area respectively in the corresponding area to be evaluated, so that the sum of the lengths of the two connecting lines is minimum;
s66, in the two areas to be evaluated, the four connecting lines and the two areas to be evaluated are enclosed together to form a transition area, and the green plants in the complete unit area in the transition area are replaced by the same green plants in the two areas to be evaluated;
s67, setting a second area threshold, wherein the second area threshold is smaller than the first area threshold, determining an independent area with the area smaller than or equal to the second area threshold, and replacing green plants in the independent area with green plant types in the independent area adjacent to the independent area.
2. The urban building group green space arrangement optimizing method according to claim 1, further comprising acquiring building exterior wall type data in step S1;
in step S3, when the illumination data is determined, light reflection performance data of the building exterior wall is determined according to the building exterior wall type data at the same time, and illumination data in the green land arrangeable area is determined according to the urban area topography, the building height data, the light reflection performance data and the longitude and latitude coordinate data.
3. The urban building group green space arrangement optimizing method according to claim 1, wherein step S5 comprises the steps of:
s51, determining road distribution and road types according to the urban area map;
s52, determining a road leaning area in the green land arrangeable area according to the road distribution and the road type;
S53, determining noise reduction and dust prevention requirements according to the road distribution and the road type, and matching green plants for the road leaning area according to the noise reduction and dust prevention requirements and corresponding illumination conditions;
and S54, matching green plants which are matched with the illumination conditions of the green land according to the illumination type areas and are outside the road leaning areas in the green land arrangeable areas.
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