Method for searching interest points in designated area of map by hand-drawing way

A technology for specifying areas and points of interest, which is applied to the field of searching for points of interest in a specified area on an electronic map, and can solve the problem of inflexibility in specifying search areas.

Inactive Publication Date: 2012-09-12
HANHAI INFORMATION TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention is to solve the problem of inflexible designation of the search area in the existing search technology, and provides a method o

Method used

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  • Method for searching interest points in designated area of map by hand-drawing way
  • Method for searching interest points in designated area of map by hand-drawing way
  • Method for searching interest points in designated area of map by hand-drawing way

Examples

Experimental program
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Embodiment 1

[0064] Draw a closed figure of any shape by hand, and search for points of interest within the closed figure area.

[0065] Such as image 3 Shown, the present invention comprises the following steps:

[0066] Step 1: Provide a drawing interface on the surface of the electronic map on the client side for the user to draw the search area by hand.

[0067] Step 2, judging the type of the hand-painted area. The judgment method is:

[0068] Step 201, during the hand-drawing process, acquire the trajectory of the finger, the first drawing point and the last drawing point. The first drawing point and the last drawing point are used to judge the type of hand-drawn area.

[0069] When the finger touches the screen for the first time, record this touch point as the first drawing point, and then the finger moves continuously without leaving the screen. When the finger leaves the screen, record the end of this drawing, and record the last touch point as the last time Draw points.

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Abstract

The invention relates to the technical field of computers, and provides a method for searching interest points in a designated area of a map by a hand-drawing way. The method comprises the following steps: step 1 of providing a drawing interface on a client electronic map surface to provide a hand-drawing area for users; step 2 of judging type of the hand-drawing area; step 3 of acquiring a screen pixel point set in the hand-drawing area; step 4 of converting the screen pixel point set into a map longitude-latitude point set; step 5 of transmitting the map longitude-latitude point set to a background server; step 6 of calculating an external rectangle and a centre point according to the map longitude-latitude point set by the server, and searching interest points of the external rectangle; step 7 of screening the interest points in the hand-drawing area to form a searching result set. According to the method provided by the invention, users can randomly designate areas by the hand-drawing way on an electronic map of the client to search interest points.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method for searching interest points in designated areas on an electronic map. Background technique [0002] With the development of e-commerce and the development of handheld terminal technology, life has become more and more convenient, fast and casual because of technology. [0003] No matter at home, on the road, or driving, users feel hungry, they can use their mobile phones, IPAD, iPod touch and other client devices to search for nearby delicious food on their electronic map and where they are distributed , how far away, and then pick one that interests you. [0004] At present, the method of searching for a point of interest in a specified area of ​​the electronic map is: [0005] First, collect POI data and add it to the database. POI data includes other information such as its latitude and longitude information and POI name; then, transmit the latitude and longitud...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F3/048G09B29/00G06F3/0488
Inventor 陈旺吕召刚丁立宇孙兆明潘华磊
Owner HANHAI INFORMATION TECH SHANGHAI
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