Temporal tile map service method based on multi-resolution images and electronic equipment

A multi-resolution, tile map technology, applied in map-related fields, can solve problems such as inability to express temporal information

Inactive Publication Date: 2018-11-06
CHINARS GEOINFORMATICS GUANG DONG
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  • Claims
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Problems solved by technology

[0004] Based on this, it is necessary to provide a temporal tile map service method and electronic equipment based on multi-resolution images for the technical problem that the existing tile map service cannot express temporal information

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  • Temporal tile map service method based on multi-resolution images and electronic equipment
  • Temporal tile map service method based on multi-resolution images and electronic equipment
  • Temporal tile map service method based on multi-resolution images and electronic equipment

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Such as figure 1 Shown is a working flow chart of a multi-resolution image-based temporal tile map service method of the present invention, including:

[0037] Step S101, generate a tile pyramid from the source data according to the resolution dimension, the tile pyramid includes multiple map layers, each map layer corresponds to a resolution, and each map layer includes at least one temporal corresponding to the geographical range tiles, each temporal tile corresponds to a range of time;

[0038] Step S102, storing the time information, resolution dimension and geographical range corresponding to each time information tile in the database;

[0039] Step S103, in response to the query request sent by the client through the service interface, according to the condition of the query request, return the temporal tiles satisfying...

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Abstract

The invention discloses a temporal tile map service method based on multi-resolution images and electronic equipment. The method includes: using source data to generate a tile pyramid according to a resolution dimension, wherein the tile pyramid includes multiple map layers, each map layer corresponds to one type of resolution, each map layer includes at least one temporal tile corresponding to ageographic range, and each temporal tile corresponds to a time range; storing time information, the resolution dimension and the geographic range, which correspond to each time information tile, intoa database; and in response to a query request sent by a client through a service interface, returning a temporal tile, which meets a condition of the query request, to the client according to the condition of the query request. According to the method, a tile pyramid structure is expanded, features of the data are combined, the tile pyramid is enabled to be combined with a time dimension, a temporal tile pyramid structure is constructed, the temporal tile pyramid with the resolution dimension is realized through the multiple map layers including the temporal tiles, and the resolution and thetemporal information can be simultaneously expressed.

Description

technical field [0001] The invention relates to the field of map-related technologies, in particular to a multi-resolution image-based temporal tile map service method and electronic equipment. Background technique [0002] Existing single image tile map services use a tile map pyramid model. The tile map pyramid model is a multi-resolution hierarchical model. From the bottom layer to the top layer of the tile pyramid, the resolution becomes lower and lower, but the geographical range represented remains the same. Generally speaking, the resolution of adjacent layers has a 2-fold relationship; then each layer is tile-separated, and in two adjacent layers, any adjacent 4 tiles in the layer with a smaller resolution form 2 The tile matrix of ×2 just corresponds to a tile in the same geographical range in the layer with a larger resolution. [0003] However, the existing single image tile map services (such as standard tile services such as WMS-C, WMTS, TMS, and XYZ) have n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 王晋年黄井优李涛肖少林肖剑龚正坤周健威
Owner CHINARS GEOINFORMATICS GUANG DONG
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