公开(公告)号：US20140204116A1

公开(公告)日：2014-07-24

申请号：US14223821

申请日：2014-03-24

Applicant: GOOGLE INC.

Inventor： Jennifer Maurer ,  Sean Egan ,  Brian Cornell

IPC: G01C21/36 ,  G06T11/00

Abstract: A computing device receives, via a communication network, map data including (i) a description of geometries of map features and (ii) a first description of visual characteristics defined separately and independently of the description of the geometries. The computing device applies the visual characteristics to the geometries to render a first digital map. The computing device then receives, via the communication network, a second description of visual characteristics for application to the geometries previously provided to the computing device as part of the map data, and applies the second visual characteristics to the previously received geometries of the plurality of map features to render a second digital map.

Abstract translation: 计算设备经由通信网络接收地图数据，包括（i）地图特征的几何图形的描述，以及（ii）独立于和几何形状的描述分开定义的视觉特征的第一描述。 计算设备将视觉特征应用于几何形状以呈现第一数字地图。 计算设备然后经由通信网络接收用于应用于先前提供给计算设备的几何图形的视觉特征的第二描述，作为地图数据的一部分，并将第二视觉特征应用于先前接收到的多个 地图特征来呈现第二个数字地图。

公开(公告)号：US09396508B2

公开(公告)日：2016-07-19

申请号：US13895310

申请日：2013-05-15

Applicant: GOOGLE INC.

Inventor： Daniel Otero ,  Nicholas Lee ,  James Darpinian ,  Jennifer Maurer

IPC: G09G5/30 ,  G06T1/00 ,  G06T9/00 ,  G01C21/36

CPC classification number: G06T1/00 ,  G01C21/3667 ,  G06T9/00

Abstract: To provide map data for rendering map images corresponding to a selected geographic region at a client device, a map server generates a set of base map tiles having vector descriptors, each of which indicates a geometry of a respective map element, in accordance with a non-raster format for rendering a first map image. The map server, at some point, provides the base map tiles to the client device. Upon receiving an indication that a specific map image for the selected geographic region is to be rendered at the client device, the map server further generates a set of difference map tiles that indicate changes to be made to the set of base map tiles and sends the difference map tiles to the client device for use, along with the set of base map tiles, in rendering the requested specific map image.

Abstract translation: 为了提供用于在客户端设备处渲染对应于所选择的地理区域的地图图像的地图数据，地图服务器生成具有向量描述符的一组基本地图瓦片，每个基地块瓦片根据非 - 用于渲染第一张地图图像的格式。 地图服务器在某些时候向客户端设备提供基本地图图块。 在接收到在客户端设备处呈现所选择的地理区域的特定地图图像的指示时，地图服务器进一步生成一组差异地图块，其指示将对该组基础地图块进行改变，并发送 将不同的地图图块与客户端设备一起使用，以及一组基础地图图块，以呈现所请求的特定地图图像。

公开(公告)号：US20150128090A1

公开(公告)日：2015-05-07

申请号：US14589797

申请日：2015-01-05

Applicant: GOOGLE INC.

Inventor： Jennifer Maurer ,  Sean Egan

IPC: G06F3/0484 ,  H04L29/08

CPC classification number: G06F3/04847 ,  G01C21/32 ,  G01C21/36 ,  G01C21/367 ,  G06T11/20 ,  G06T19/006 ,  G09B29/106 ,  G09G5/00 ,  G09G5/14 ,  G09G2354/00 ,  G09G2370/022 ,  G09G2380/10 ,  H04L67/02

Abstract: First map data is generated in a vector format for displaying a first map image at a client device. The first map image corresponds to a perspective of a camera panned to a certain location at a certain zoom level. The first map data is provided to the client device via a communication network. Modification data is generated at a map server in a vector format, the modification data specifying a difference between the first map data and a second map data, where the second map data is for displaying a second map image corresponding to the same perspective of the camera panned to the same location at the same zoom level. The modification data is provided to the client device via the communication network for generating the second map image using the first map data and the modification data.

Abstract translation: 以矢量格式生成第一地图数据，用于在客户端设备处显示第一地图图像。 第一地图图像对应于以特定缩放级别平移到特定位置的相机的透视图。 第一地图数据经由通信网络被提供给客户端设备。 在地图服务器中以矢量格式生成修改数据，修改数据指定第一地图数据和第二地图数据之间的差异，其中第二地图数据用于显示对应于相机的相同视角的第二地图图像 以相同的缩放级别平移到相同的位置。 修改数据经由通信网络提供给客户端设备，用于使用第一地图数据和修改数据生成第二地图图像。

公开(公告)号：US20140340421A1

公开(公告)日：2014-11-20

申请号：US14277440

申请日：2014-05-14

Applicant: GOOGLE INC.

Inventor： Daniel Otero ,  Brian Cornell ,  Jennifer Maurer ,  James Darpinian

IPC: G06T11/00

CPC classification number: G06T11/60 ,  G01C21/367 ,  G06T11/20 ,  G06T2210/08

Abstract: To provide map data for rendering map images corresponding to a selected geographic region at a client device, a map server generates a set of base map tiles having vector descriptors, each of which indicates a geometry of a respective map element, in accordance with a non-raster format for rendering a first map image. The map server, at some point, provides the base map tiles to the client device. Upon receiving an indication that a specific map image for the selected geographic region is to be rendered at the client device, the map server further generates a set of difference map tiles that indicate changes to be made to the set of base map tiles and sends the difference map tiles to the client device for use, along with the set of base map tiles, in rendering the requested specific map image. The client device renders the new map view defined by the difference map tiles without needing to again pre-process all of the features or elements defined in the base map tiles, which makes the rendering of the new map view defined by the difference map tiles faster and more efficient in terms of processing power requirements.

Abstract translation: 为了提供用于在客户端设备处渲染对应于所选择的地理区域的地图图像的地图数据，地图服务器生成具有向量描述符的一组基本地图瓦片，每个基地块瓦片根据非 - 用于渲染第一张地图图像的格式。 地图服务器在某些时候向客户端设备提供基本地图图块。 在接收到在客户端设备处呈现所选择的地理区域的特定地图图像的指示时，地图服务器进一步生成一组差异地图块，其指示将对该组基础地图块进行改变，并发送 将不同的地图图块与客户端设备一起使用，以及一组基础地图图块，以呈现所请求的特定地图图像。 客户端设备呈现由差分地图图块定义的新地图视图，而不需要再次预处理基本地图图块中定义的所有特征或元素，这使得由差异地图图块定义的新地图视图的渲染更快 并且在处理能力要求方面效率更高。

公开(公告)号：US20140035948A1

公开(公告)日：2014-02-06

申请号：US14053559

申请日：2013-10-14

Applicant: Google Inc.

Inventor： Jennifer Maurer ,  Brian Cornell ,  Daniel Otero

IPC: G06T11/00

CPC classification number: G06T11/00 ,  G01C21/3667 ,  G06F17/30241 ,  G06T17/05 ,  G09B29/006 ,  G09B29/007

Abstract: Multiple individually renderable map elements, each representing a respective physical entity in a geographic area, are rendered to generate a digital map of the geographic area. A description of an aggregate map feature that includes several but not all of the multiple map elements is received. The several map elements represent physical entities that form a common administrative unit. A selection of one of the several map elements is received via the user interface. In response to receiving the selection, the several map elements included in the aggregate map feature are automatically selected, and an indication that the aggregate map feature has been selected is provided on the user interface.

Abstract translation: 呈现多个单独呈现的地图元素，每个表示地理区域中的相应物理实体，以生成地理区域的数字地图。 收到包含多个但不是全部多个地图元素的聚合地图要素的描述。 几个地图元素代表形成一个共同管理单元的物理实体。 通过用户界面接收到几个地图元素之一的选择。 响应于接收到选择，自动选择包括在聚合地图特征中的几个地图元素，并且在用户界面上提供已经选择了聚集地图特征的指示。