JP3128899B2 - Mapping method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map making method which applies a technique of reading a drawing with a scanner and automatically inputting data to a computer, and more particularly, to efficiently input a result of a field survey in making a house map. To create a map.

[0002]

2. Description of the Related Art Creating the results of a field survey on a house map is a very time-consuming task. This step is usually performed as follows.

(1) A blank map in which only roads, house shapes, and district names are entered is digitized and input to a computer.

(2) An investigator asks each house with the above-mentioned blank map, confirms the name of the building, company name, personal name, etc., and fills it out. At this time, if the building is different from the original map or if a new road is made, write down the fact to update the map.

(3) The operator of the computer inputs specific names and numbers in individual house shapes while looking at the above survey results, and updates the map as necessary.

(4) Print and publish the completed house map.

[0007]

Among the above-mentioned conventional processes, in the task of inputting a survey result to a computer, an operator specifies a position on a CRT and inputs a name or a number from a keyboard. . Although this is a simple operation, the number of input points is very large, so that a large number of personnel must be input, and reading errors, input errors, and kana-kanji conversion errors are likely to occur. The present invention has been made in view of such a problem, and an object of the present invention is to provide a map creation method that can reduce the burden on investigators and operators, suppress the occurrence of errors, and reduce required personnel. .

[0008]

Means for solving the above-mentioned problems in the present invention are as follows. A blank map showing the planar contour shape of a road and a building and the result of a field survey by an investigator are input to a computer, respectively. In the map creation method that creates a house map that matches the target, a scanner that drops out the input of the specific color is provided, and the researcher writes the required survey results on the blank map output with the specific color with writing implements other than the specific color and, entering that it was Mase write read by the scanner
Force data and pre-survey map stored in memory
Information is superimposed and displayed on the display unit to indicate the change
In addition to the specified map creation method, a survey form database of a predetermined format is provided, and the surveyor fills out the survey form output in a specific color with the required survey result using a writing instrument other than the specific color, and It is preferable to read with a scanner,
Also, when writing characters on maps created with these methods ,
The inclination θ of the longest line from the horizontal is determined, and this inclination θ is 0 to 4
In the range of 5 degrees, the character direction of θ + 90 degrees
When θ is 45 to 135 degrees, the character string is written vertically.
When θ is in the range of 135 to 180 degrees, the character string is written horizontally.
And a character direction of θ-90 degrees .

[0009]

The present invention comprises a scanner having a function of rejecting the input of a specific color, a method of printing an original drawing in the specific color, and a method of making a house map in which an investigator writes additional items in a color other than the specific color. is there. This specific color is called a dropout color.

[0010] Dropping of a specific color can be realized by placing a filter of the same color in front of the light receiving section or by using a light source of the same color. Regarding dropout, the applicant of the present invention has filed a patent application as a drawing check method on the same date as the present application (M03-035).
4).

In the present invention, a blank map is output in a drop-out color at the time of initial map creation, and the surveyor writes the results of the field survey in black, for example. If this is scanned by the scanner, the computer will be able to recognize the original drawing and the survey result while comparing them in position.
In the update process, the existing map created in this way is output in a dropout color including the key number, and the investigator fills in only the parts to be changed as a result of the field survey in black, for example, If this is scanned by the scanner, the processing is simplified and the burden on the investigator and the operator is reduced. On the other hand, there are cases where a survey form is used in addition to a map.In that case, the original part is output in a dropout color, the survey result is filled in with a black pen or the like, and this is scanned by the scanner. The effect can be obtained. In this case, it is also possible to use a handbook type personal computer instead of the survey form.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a process chart showing one embodiment of the house map creation processing of the present invention. In the figure, each step is as follows.

(1) Digitize a map written on paper. The method is either automatic recognition by an auto digitizer or manual input by a hand digitizer, and any method may be used, but the following information must be extracted. That is, a map written on paper means a road, a house shape, a municipal name, a lot number, and the like, and at least the road and house shape must be recognized or digitized as a separate layer in a subsequent process. , Municipalities, etc. must also be entered as character strings.
Rivers, railways, etc. are also included in these.

(2) The digitized result is first stored in a disk as a first database for each map mesh. At the time of storage, a number key unique to the mesh is assigned to each building. It is easy to assign numbers automatically if all buildings are correctly recognized or corrected or entered correctly by a hand digitizer.

(3) A map digitized for each mesh is output from the first database. At that time, the color
Use colors that the correction scanner can drop out. Since it is necessary to detect the four corners of the map, black special marks are printed at those positions. The mesh number is also preferably black. The information output in the dropout color includes road lines, building outlines, numbers assigned to buildings, names of municipalities, names of roads, and the like.
A color electrostatic printer or a color pen plotter is used for printing.

At the same time, a survey form for entering the name of the building or the like is also output. FIG. 2 is a sample diagram showing an example of a survey form used in the present embodiment. In the figure, the same key number, mesh number, and outer frame line as those assigned to each building are black, and the other colors are the same as the scanner dropout colors.

(4) The surveyor conducts a field survey using the output map and the survey form, and fills out the survey form with black writing implements. If the map and the local situation are different, the current situation is written on the map with a black writing implement as shown by the solid line in FIG. In addition, what is shown by a broken line in FIG.
This is the part printed in dropout color. In the sample example, a road is newly constructed and the 21st building is rebuilt to a large size. The new building is assigned a key number “112” that is not duplicated in the mesh by the questionnaire, and the questionnaire is also written in black with the name and number at the end.

(5) Input a survey form and update the map. To update the map, use a device as shown in FIG.
If there is a change between the map output in step (3) and the survey results of the surveyor, the surveyed map is input by the scanner 41.
The scanner 41 does not input a specific color (for example, red or green) on the drawing, and this is a dropout color. According to the processes described in the steps (3) and (4), only black is taken into the processing device 42 in this embodiment. The processing unit 42 is a general-purpose EWS,
Use a personal computer or a specially made device.
The data input here and the map (database-1) stored in advance on the disk are superimposed and displayed on the CRT 43 of the apparatus. Since the four corner positions of the map output in step (3) are printed in black, the map in the first database 44 can be superimposed using this information. In addition, the mesh number is also written in black, so that it is easy to confirm that the information of the superposition is correct. The operator updates the graphic information of the original data using a pointing device such as a mouse while viewing the changed portion on the CRT 43. When all the updates are completed, the result is returned to the first database 44 for the time being.

The input of the questionnaire is performed by inputting an image using a dedicated OCR device or the scanner described above.
Perform character recognition. The recognizer modifies it with the attached CRT and keyboard to create a survey form database.

Alternatively, at the time of the on-site survey of (4), the survey form may be entered directly by keyboard into a notebook computer or the like without being handwritten.

(6) Subsequently, the creation of a house map is performed by the apparatus configuration shown in FIG. In the figure, 51 is a scanner, 5
2 is a character recognition device, 53 is a man-machine interface, 54 is a character dictionary, and 55 is a survey form database. The map graphic information in the first database updated in the step (5) is associated with the text information on the building in the survey form database 55, and the building on the map is searched from the key number of the survey form. Write the name and number in the frame of the building. FIG. 6 is a flowchart of the map creation process.
In a house map, a person's name and a company name are entered in a house shape, and therefore, in order to make the map easier to read, it is necessary to arrange characters according to the shape of the building as shown in FIG. Therefore, as a method of designating the character entry, in the case of a building having a rectangular shape or more, the inclination of the building from the horizontal and vertical directions is detected. As shown in FIG. 8, the longest line a is searched for, and the inclination θ from the horizontal is obtained. If θ is in the range of 0 to 45 °, FIG.
As shown in (A), the character string is written horizontally, and the direction of each character is θ + 90 °. Similarly, if θ is in the range of 45 to 135 °, the character string is written vertically and the direction of each character is θ ° as shown in FIG. If θ is in the range of 135 to 180 °, the character string is written horizontally, and the direction of each character is θ−
90 °. The text entry range is all entry ranges inscribed in the building frame. By setting such rules, for most buildings, the character direction, character method, and entry range can be automatically specified. In the case of a building having a round or triangular shape as shown in FIG. 10, an operator freely designates a writing direction and a writing range of a character using a pointing device such as a mouse. Since there are very few buildings having such a shape, it may be left to the judgment of the operator.

The above designation in character entry is to be performed in the updating process in the steps (2) and (5).
It can be carried out in the step (6). Step (6)
In the step (63) shown in FIG. 6, it is necessary to assign a name or the like from the survey form database to the above-mentioned entry range. Note that the computer characters used here are stroke fonts that can be displayed at any angle and that can be freely enlarged or reduced.

This embodiment has the following advantages.

(1) When the current state is different from the map, the updating process can be very easily performed.

(2) The name of the resident or company of each building which the investigator has examined on the spot can be easily input, which has the effect of improving work.

(3) The burden on the investigator is reduced. Conventionally, fine characters have to be written on the building part in the map, but in this embodiment, it is only necessary to fill in a predetermined sheet.

FIG. 11 is a process chart of another embodiment of the present invention. In a house map, the change is intense, including the movement of the resident, and it is necessary, but difficult, to update the process quickly. Therefore, when the house map according to the present invention already exists, if the update processing is performed as shown in FIG. 11, the processing is simplified and the burden on the researcher is reduced. In the figure, each step is processed as follows. Step (101) is the output of an existing map, which is output from the existing map database. Roads, buildings, building key numbers, resident names, company names, municipalities, and the like are output in the dropout color, and the four corner marks and mesh numbers are output in black. Although the survey form is also output, the key number is not output because the changed part is only a small part, and the researcher shall handwrite with the black writing instrument only when there is a change. Step (102) is an on-site inspection, and is performed in the same manner as in FIG. 1 except for the processing of the key number. Step (103)
Then, the survey result is input to a temporary file, and in step (104), the house map is updated. The updated map is stored in a dedicated database. Step (105) is printing and step (106) is publishing, all of which are performed as in FIG.

This embodiment has the following advantages.

(1) Updating of a part where the existing map is different from the site is simplified.

(2) The input of the survey result becomes easy.

(3) The burden on the investigator is reduced, and errors are reduced.

[0032]

As described above, according to the present invention, it is possible to provide a map creation method capable of reducing the burden on the investigator and the operator, suppressing the occurrence of mistakes, and reducing the required number of personnel.

[Brief description of the drawings]

FIG. 1 is a process chart of an embodiment of the present invention.

FIG. 2 is a sample diagram of a survey form of the embodiment.

FIG. 3 is a sample diagram of a blank map according to the embodiment.

FIG. 4 is a configuration diagram of a map updating device.

FIG. 5 is a configuration diagram of a map updating device.

FIG. 6 is a flowchart of a map creation process.

FIG. 7 is a sample diagram of a house map.

FIG. 8 is an explanatory diagram of an entry method according to the embodiment.

FIG. 9 is an explanatory diagram of an entry method according to the embodiment.

FIG. 10 is an explanatory diagram of an entry method according to the embodiment.

FIG. 11 is a process chart of another embodiment of the present invention.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G06T 1/00 G06T 11/60 G09B 29/00

Claims (3)

(57) [Claims] 1. A map creation method for inputting a blank map showing a plane outline shape of a road and a building and a result of a field survey by an investigator to a computer and creating a house map in which they are compared with each other, inputs a specific color. a scanner to drop out, the investigator on the output blank map a particular color to fill the required findings in writing instrument other than the specific color, and input data Mase write read it in the scanner,
Overlays the map information before the survey stored in the storage unit in advance
Mapping method combined by displaying on the display unit, characterized that you identify the changes by. 2. The map creation method according to claim 1, further comprising a survey form database in a predetermined format, wherein a surveyor outputs necessary survey results to the survey form output in a specific color using a writing implement other than the specific color. A map creation method that is filled in and read by a predetermined scanner. 3. The method according to claim 1 or claim 2.
When writing characters on the map created by the method described in
From the longest line, the inclination θ is 0 to 45 degrees
In the horizontal direction, the character direction is set to θ + 90 degrees as horizontal writing, and θ
Is 45 to 135 degrees, the character string is written vertically, and θ
Is in the range of 135 to 180 degrees,
A map creation method characterized in that the character direction is -90 degrees .