CN101510273A - Method for rapidly counting city planning earth area and computer program - Google Patents
Method for rapidly counting city planning earth area and computer program Download PDFInfo
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Abstract
The invention relates to a method for fast statistics of urban planning land area and a computer program, which is mainly applied in the field of urban planning preparation and approval. The method comprises the following steps: 1. an urban planning image is pretreated; 2. the image is transformed into an image with standard format; 3. the standard image is subjected to geographic coordinate registration and correction; 4. the gray value of the image after registration and correction, and the pixel quantity and pixel area corresponding to different gray values are obtained so as to calculate the area of different planning lands; and 5. the statistical result is output in the forms of figures and tables. Based on a NET platform and ArcObjects techniques, the statistical computer program is developed by adopting object-oriented component technology. By applying the invention, the technical problem of fast statistics of urban planning land area is solved, the statistical speed and accuracy are improved, the statistical workload is alleviated, and the automatic statistics of urban planning land area is realized.
Description
One, technical field
The present invention relates to a kind of method of utilizing the computer program rapidly counting city planning earth area, be particularly related to a kind of method of utilizing computer program rapidly counting city planning earth area from the city planning grating image, the land area that can express statistic goes out all kinds of use different in kinds in the city planning is mainly used in the city planning establishment and examines in the field.
Two, background technology
City planning is the technical work of a complexity and system.For science and the operability that guarantees to plan, country has formulated complete quantitative evaluation and the controlling index system of a cover, as all kinds of construction land indexs, construction land index etc. per capita.The core of these economic and technical norms is areas of the planned land use of all kinds of use different in kinds, and the statistics of land area and accounting are the important steps that city planning is worked out, evaluated and examine.
City planning establishment achievement mainly contains two kinds of expression waies, promptly based on the vector graphics file of CAD drafting and the raster image file of drawing based on PHOTOSHOP.CAD is the most widely used vector plotting software systems of planning department, and it can be drawn the various figures and the amount of city planning scheme and calculate the planned land use area.This is the main mode of present planned land use area statistics, it need statistics person with " area measuring " among CAD order one by one amount calculate each block area on the planning figure, thereby and then the urban land area that summation counts each class different in kind is sorted out in all plot by the difference of using character.Yet in the city planning land area big (with square kilometre or hectare calculating), the plot One's name is legion, urban land type many (10 big classes), land used plot and road shape complexity (polygon or shaped form), therefore the statistics of land area and adjust complicated loaded down with trivial details, workload is huge, and is prone to that meter is counted more, inconsistent, the not high various shortcoming and defect of accuracy of result of calculation with Louing.
Grating image also is the expression way commonly used of planning establishment achievement.The city planning grating image does not have volume coordinate information, only is a two-dimensional plane image, and it represents urban land of different nature by different colors, and the urban land of each different in kind is with a kind of specific color showing.National sector standard " city planning drafting standard " (CJJ/T97-2003) has been done concrete regulation to the expression color of the big class land used of ten in the city planning.The advantage of grating image is that it is methodically arranged, and intuitively and clearly gives expression to the layout situation of all kinds of lands used of city planning, so it is used for the submission of planning and design achievement in a large number and reports displaying.But the shortcoming of planning grating image is that it can not measure the area of calculating various lands used as vector graphics, can't quantitatively grasp the programme that planning establishment department submits to for planning evaluation department, can't check the economic and technical norms of scheme.This just may cause some planning organization unit to make oneself scheme satisfy the fabricate phenomenon of index of national standard standard.Therefore, the area of all kinds of lands used in the express statistic city planning how under guaranteeing the prerequisite of pin-point accuracy reduces workload, shortens timing statistics, and the efficient and the automatization level that improve statistics are planning establishment and approving person's problem suddenly to be solved.
Three, summary of the invention
The computer program that the purpose of this invention is to provide a kind of method and statistics of rapidly counting city planning earth area, can from the city planning raster data image, count the different city planning earth area of various types of properties rapidly and accurately, overcome the shortcoming and defect that exists in the above-mentioned prior art, added up this technical matters for the solution city planning earth area a kind of new technical scheme is provided.The present invention can improve the speed and the accuracy of city planning earth area statistics, shortens timing statistics, has that efficient height, speed are fast, the advantage of robotization, has broad application prospects in the city planning field.
Reach the object of the invention for solving the problems of the technologies described above, the present invention is achieved in that
A kind of method of rapidly counting city planning earth area may further comprise the steps:
1, pre-service planning grating image in image processing software PHOTOSHOP, there are not literal and legend on the pretreated image, image resolution ratio is 300dpi, picture format is 16 TIF forms under the grayscale mode, the color showing of each class urban land of different nature with different gray-scale values.
2, the planning chart of above-mentioned pretreated TIF form is looked like to convert to the standard picture of IMG form, this standard picture has pixel quantity, the pixel size attribute information of gray-scale value, different gray-scale value correspondences.
3, standard picture is carried out geographic coordinate registration and correction.The user chooses the reference point of four different azimuth image is implemented geographic coordinate registration and correction according to the actual geographic coordinate situation in city on the standard planning image.These reference point can be consecutive point and other locus that can clearly locate between road axis point of crossing, the plot.Because planning establishment and administrative authority have the geographical coordinate data in basis, city, therefore can conveniently obtain the geographic coordinate data of reference point.Just can bring in the concrete geographical co-ordinate system through the planning chart picture after registration and the correction, thereby make the two-dimensional image with spatial positional information have real geospatial location and range information, each pixel of composing images has and equates and real area size.
4, calculate city planning earth area of different nature:
1) the area size of gray-scale value, the pairing pixel quantity of different gray-scale value and the pixel of the planning chart picture after extraction registration and the correction.
2) the pairing pixel quantity of different gray-scale values is carried out size ordering, have the represented n class planned land use of color of this n gray-scale value on preceding n higher value correspondence image.
3) area that multiply by pixel with the quantitative value of pixel respectively obtains this n class city planning earth area of different nature.
5, statistics is output as the statistics pie image file of JPG form and the form document of EXCEL, with convenient further editing and processing.
A kind of computer program of rapidly counting city planning earth area may further comprise the steps:
1,, adopts the computer program of OO component technology exploitation rapidly counting city planning earth area based on .NET platform and ArcObjects technology.
2, also working procedure is installed, is loaded the pretreated desired planning chart picture of rapidly counting city planning earth area method that meets through PHOTOSHOP, converted image is to standard I MG form.
3, standard picture is carried out geographic coordinate registration and correction, select on the planning chart picture reference point on four different directions with cursor of mouse, the geographic coordinate (see figure 3) of each reference point of input in " input geographic coordinate " dialog box that program ejects, the input back point that finishes " determines " that button finishes the registration and the correction of image.
4, in ensuing " land used statistics " interface, select the classification number of planned land use on the input picture, point " begins to add up " button, program can automatically be extracted gray-scale value, the pairing pixel quantity of each gray-scale value of image, the true area size of pixel, and obtains n class city planning earth area (see figure 5) of different nature with the individual bigger pixel quantity area with pixel on duty of preceding n.
5, in " statistics " table that the program statistics obtains, after selecting the use character of each class land used, point " statistical study " button the form output (see figure 6) of statistics with the statistics cake chart picture and the Microsoft Excel file of JPG form, has made things convenient for further editing and processing.
For easy to use, program is a statistical computation unit with " rice ", and order commonly used is with the button indication of imagery, comprises that image amplifies, dwindles, full screen display, the reference point that moves, chooses image registration and correction, load image etc.
By technique scheme, the present invention has following beneficial effect:
1, the invention provides a kind of new statistical method, starting with from planning raster data image commonly used has solved the technical matters of rapidly counting city planning earth area.Computer programming provided by the present invention to the support and the processing capacity of planning raster data image, can finish planning the reading of raster data, conversion, statistical study and output fast.Can improve the speed and the accuracy of city planning earth area statistics, shorten the time of statistical calculation, alleviate the workload of planned land use area statistics, have that efficient height, speed are fast, the advantage of robotization.
2, can and examine objective, the quantitative technology index data that provides to supply decision references for the planning establishment.City planning establishment department uses the present invention, can check the economic and technical norms situation of programme, for programming provides reference frame in good time; City planning examining department uses the present invention and can adjust the programme index that planning establishment department reports and submits, not only can for scheme examining provide with reference to but also can stop the behavior of fabricateing index.
3, in the Other Engineering planning field, relate to and calculate land area, as the reallocation of land, landscape planning etc., meet that the present invention requires and can obtain reference point coordinate on the image as long as express grating image of its establishment achievement, all can use method of the present invention and the program express statistic goes out land area.
Four, description of drawings
Fig. 1 is a techniqueflow chart.
Fig. 2 be in the program of being loaded into through the pretreated planning grating image of PHOTOSHOP.
Fig. 3 is the image registration in the program run and proofreaies and correct the interface.
Fig. 4 is the standard picture AIT of IMG form.
Fig. 5 is the city planning earth area statistics interface in the program run.
Fig. 6 is the city planning earth area statistics output interface in the program run.
Five, embodiment
Main technical principle of the present invention: in the city planning image with different color showings land used type of different nature, after this coloured image being changed into the gray level image of 16 TIF forms, the shades of colour among the former figure replaces representing with the grey with different stage gray-scale value.The TIF form is changed into the various attribute informations that then can obtain image behind the IMG form, comprise pixel quantity, the elemental area size of gray-scale value, each gray-scale value correspondence.The elemental area of this moment is false.After image carried out registration according to real geographic coordinate and proofreading and correct, image has real geospatial location and range information, and each pixel has also just had real area size.Extraction gradation of image value and corresponding pixel quantity thereof, the true area of each pixel just can statistical computation go out all kinds of city planning earth areas of different nature like this.
Below in conjunction with drawings and Examples technical scheme of the present invention is further described.
1, in image processing software PHOTOSHOP, planning chart is looked like to be processed into the gray level image of 16 TIF forms, there are not literal and legend on the image, image resolution ratio is 300dpi, the color showing of each class city planning earth of different nature with different gray-scale values, as shown in Figure 2.
2, working procedure loads pretreated image in program, and it is converted to the standard picture of IMG form,
3, standard picture is carried out geographic coordinate registration and correction, as shown in Figure 3.Choose the reference point of four different directions on the image, the intersection point that this routine selection is schemed between last four plot is a reference point, as shown in Figure 3 four intersection points that circle is interior.In " input geographic coordinate " dialog box that ejects, import the true geographic coordinate of each reference point respectively, reference point coordinate in the lower right corner is (3681248 in this example, 524339), lower left corner reference point coordinate is (3681199,523877), and upper left corner reference point coordinate is (3681465,523730), upper right corner reference point coordinate is (3681527,524320), and the input back point that finishes " determines " that button finishes the coordinate registration and the correction of image.The simple two-dimensional image that does not have geospatial information has like this had real geospatial location and range information, and each pixel of composing images has equal and real area size.
4, land area statistics.Seven class urban lands are arranged in this example, are respectively the lands used of land for roads, residential estate, industrial land, urban operating mechanism land used, public facilities, land use for greening and undefined character, and this seven classes land used is represented by the grey with different gray-scale values respectively.Select the classification number of planned land use on the image in " land used statistics " interface in program run, the choosing of this example " 7 ", i.e. seven class lands used.Point " begins to add up " button, the true area size of the gray-scale value of the automatic extraction of program meeting image, the pairing pixel quantity of each gray-scale value, pixel, obtain seven classes city planning earth area of different nature with the first seven bigger pixel quantity area with pixel on duty, as shown in Figure 4 and Figure 5.Fig. 4 is the Pixel Information of the first seven quantity higher value, and value represents gray-scale value, and count represents to have the pixel quantity of this gray-scale value; Fig. 5 is " land used statistics " interface in the program run.
5, in " statistics " table that the program statistics obtains, after selecting the use character of each class land used, point " statistical study " button the form output of statistics with the statistics cake chart picture and the Microsoft Excel file of JPG form, has made things convenient for further editing and processing.Wherein the land used of " undefined character " is not because of among national standard ten big class lands used, and program is got rid of it when output, as shown in Figure 6.
Through the practical application at planning department, the prover result of use is good, has improved statistics speed, and statistical error is limited in 3% basically.Measuring the calculation six class city planning earth total areas as present embodiment in CAD is 539278 meters
2, the program statistical value is 537240 meters
2, accuracy reaches 99%.With respect to city total size (several square kilometres), this statistical precision satisfies actual needs fully.
Claims (7)
1, a kind of method of rapidly counting city planning earth area is characterized in that may further comprise the steps:
A, in image processing software PHOTOSHOP, the city planning grating image is carried out pre-service;
B, the pretreated image of conversion are standard image format;
C, standard picture is carried out geographic coordinate registration and correction;
The area size of gray-scale value, the pairing pixel quantity of different gray-scale value and the pixel of the image after D, extraction registration and the correction is calculated all kinds of city planning earth areas of different nature;
E, statistics with the output of the form scheming and show.
2, the method for rapidly counting city planning earth area according to claim 1, it is characterized in that not having literal and legend in this steps A on the pretreated image, image resolution ratio is 300dpi, picture format is 16 TIF forms under the grayscale mode, the color showing of each class urban land of different nature with different gray-scale values.
3, the method for rapidly counting city planning earth area according to claim 1 is characterized in that the standard picture after the conversion is the image of IMG form among this step B.
4, the method for rapidly counting city planning earth area according to claim 1, it is characterized in that among this step C in the reference point of selecting on the standard picture on four different directions, give of registration and the correction of the real geographic coordinate of reference point, make image have real locus and range information to finish image.
5, the method for rapidly counting city planning earth area according to claim 1 is characterized in that calculating among this step D Method for Area and further comprises:
1) the pairing pixel quantity of different gray-scale values is carried out size ordering, have the represented n class planned land use of color of this n gray-scale value on preceding n higher value correspondence image.
2) area that multiply by pixel with the quantitative value of pixel respectively obtains this n class city planning earth area of different nature.
6, the method for rapidly counting city planning earth area according to claim 1, what it is characterized in that exporting in this step e is the statistics pie image file of JPG form and the form document of EXCEL, has made things convenient for further editing and processing.
7, a kind of computer program of rapidly counting city planning earth area when installing and carrying out on computers, is arranged to make described computing machine to finish rapidly counting city planning earth area, it is characterized in that may further comprise the steps:
A, based on .NET platform and ArcObjects technology, adopt the computer program of OO component technology exploitation rapidly counting city planning earth area;
B, installation and working procedure, loading meets the planning chart picture described in the claim 2, and converted image is to standard I MG form;
C, standard picture is carried out geographic coordinate registration and correction, select required reference point with cursor of mouse, the geographic coordinate of each reference point of input in " input geographic coordinate " dialog box that program ejects, the input back point that finishes " determines " that button finishes the registration and the correction of image;
D, in ensuing " land used statistics " interface, select the classification number of planned land use on the input picture, point " begins to add up " button, and program can automatically perform step D and the different classes of city planning earth area of the statistics of the step in the claim 5 in the claim 1;
E, in " statistics " that program calculates table, after selecting the use character of each class land used, point " statistical study " button the form output of statistics with the statistics cake chart picture and the Microsoft Excel file of JPG form, has made things convenient for further editing and processing.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103049626A (en) * | 2011-10-11 | 2013-04-17 | 上海同济城市规划设计研究院 | Planning construction land balance sheet manufacturing method based on raster images |
| CN105893520A (en) * | 2016-03-30 | 2016-08-24 | 广东中冶地理信息股份有限公司 | Estimation method for urban road areas |
| CN110097595A (en) * | 2019-04-10 | 2019-08-06 | 东南大学 | A kind of all types of land area statistical methods in traffic zone based on image procossing |
| CN110288134A (en) * | 2019-06-06 | 2019-09-27 | 国网湖北省电力有限公司孝感供电公司 | A kind of fast automatic statistical method of city classification land area |
| CN110348685A (en) * | 2019-06-10 | 2019-10-18 | 华南理工大学 | Urban industry land used space degree of disturbance assessment method, system, equipment and medium |
| CN112307533A (en) * | 2020-10-30 | 2021-02-02 | 深圳集智数字科技有限公司 | Control and regulation graph generation method and related equipment |
| CN112395445A (en) * | 2020-11-17 | 2021-02-23 | 高崟 | Vector data online calculation method and device |
| CN113052743A (en) * | 2021-03-24 | 2021-06-29 | 中国科学院地理科学与资源研究所 | Urban carbon emission data processing method, device, medium and terminal equipment |
| CN113706997A (en) * | 2021-09-06 | 2021-11-26 | 深圳市库思科技有限公司 | Urban and rural planning drawing standardization processing method and device and electronic equipment |
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2008
- 2008-08-28 CN CNA2008101246499A patent/CN101510273A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103049626A (en) * | 2011-10-11 | 2013-04-17 | 上海同济城市规划设计研究院 | Planning construction land balance sheet manufacturing method based on raster images |
| CN105893520A (en) * | 2016-03-30 | 2016-08-24 | 广东中冶地理信息股份有限公司 | Estimation method for urban road areas |
| CN105893520B (en) * | 2016-03-30 | 2020-03-10 | 广东中冶地理信息股份有限公司 | Urban road area estimation method |
| CN110097595A (en) * | 2019-04-10 | 2019-08-06 | 东南大学 | A kind of all types of land area statistical methods in traffic zone based on image procossing |
| CN110288134A (en) * | 2019-06-06 | 2019-09-27 | 国网湖北省电力有限公司孝感供电公司 | A kind of fast automatic statistical method of city classification land area |
| CN110348685A (en) * | 2019-06-10 | 2019-10-18 | 华南理工大学 | Urban industry land used space degree of disturbance assessment method, system, equipment and medium |
| CN110348685B (en) * | 2019-06-10 | 2021-12-21 | 华南理工大学 | Urban industrial land space interference degree evaluation method, system, equipment and medium |
| CN112307533A (en) * | 2020-10-30 | 2021-02-02 | 深圳集智数字科技有限公司 | Control and regulation graph generation method and related equipment |
| CN112395445A (en) * | 2020-11-17 | 2021-02-23 | 高崟 | Vector data online calculation method and device |
| CN113052743A (en) * | 2021-03-24 | 2021-06-29 | 中国科学院地理科学与资源研究所 | Urban carbon emission data processing method, device, medium and terminal equipment |
| CN113706997A (en) * | 2021-09-06 | 2021-11-26 | 深圳市库思科技有限公司 | Urban and rural planning drawing standardization processing method and device and electronic equipment |
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