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1. 发明授权

US08937627B1 Seamless vector map tiles across multiple zoom levels 有权
标题翻译：多个缩放级别的无缝矢量地图图块
公开(公告)号：US08937627B1
公开(公告)日：2015-01-20
申请号：US13432077
申请日：2012-03-28
申请人： Daniel Otero , James Darpinian , Jennifer Maurer , Brian Cornell
发明人： Daniel Otero , James Darpinian , Jennifer Maurer , Brian Cornell
IPC分类号： G09G5/00
CPC分类号： G06F3/1423 , G09B29/005 , G09B29/006 , G09G5/363 , G09G2340/045 , G09G2340/14 , G09G2354/00 , G09G2370/022 , G09G2370/10
摘要： Rendering map tiles with style data for zoom levels other than the style data intended for that tile at its nominal zoom level can be used to avoid abrupt changes between map tiles. Particularly when changing zoom levels, use of styles from more than one level may create an uneven look. To address this, either the new data may be displayed with the style for the previous zoom level or the old data may be presented with the style for the new zoom level style until all tiles for the new zoom level are received. At that time, all the map tiles may be displayed using the style for the new zoom level along with the map data intended for that zoom level. Displaying map tiles at a first zoom level using a progression of styles from other zoom levels may also be used when creating a perspective view map.
摘要翻译：使用不同于其标称缩放级别为该图块设计的样式数据的缩放级别的样式数据渲染地图图块可以避免地图图块之间的突然变化。特别是当改变缩放级别时，使用来自多个级别的样式可能会产生不均匀的外观。为了解决这个问题，可以使用上一个缩放级别的样式显示新数据，或者可以使用新的缩放级别样式的样式显示旧数据，直到接收到用于新缩放级别的所有图块为止。当时，所有的地图图块都可以使用新的缩放级别的样式以及用于该缩放级别的地图数据来显示。在创建透视图时，也可以使用来自其他缩放级别的样式，以第一缩放级别显示地图图块。

2. 发明授权

US08274524B1 Map rendering using interpolation of style parameters across zoom levels 有权
标题翻译：通过缩放级别的样式参数插值绘制地图
公开(公告)号：US08274524B1
公开(公告)日：2012-09-25
申请号：US13247637
申请日：2011-09-28
申请人： Brian Cornell , James Darpinian , Daniel Otero , Jennifer Maurer
发明人： Brian Cornell , James Darpinian , Daniel Otero , Jennifer Maurer
IPC分类号： G09G5/00
CPC分类号： G06T11/001 , G01C21/367 , G06T2210/36 , G08G1/0969
摘要： A graphics or image rendering system, such as a map image rendering system, may receive map data associated with a set of zoom levels, where the map data includes style attribute data corresponding to various features of a map surface at corresponding zoom levels. The system may interpolate at least some of the style parameter values from the received map data to provide style parameter values over a range of zoom levels.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统可以接收与一组缩放级别相关联的地图数据，其中地图数据包括对应于对应缩放级别的地图表面的各种特征的风格属性数据。该系统可以从所接收的地图数据内插至少一些样式参数值，以在缩放级别的范围上提供样式参数值。

3. 发明申请

US20130080504A1 MANAGING MAP ELEMENTS USING AGGREGATE FEATURE IDENTIFIERS 有权
标题翻译：使用集合特征标识符管理地图元素
公开(公告)号：US20130080504A1
公开(公告)日：2013-03-28
申请号：US13244716
申请日：2011-09-26
申请人： Jennifer Maurer , Brian Cornell , Daniel Otero
发明人： Jennifer Maurer , Brian Cornell , Daniel Otero
IPC分类号： G06F15/16
CPC分类号： G06T11/00 , G01C21/3667 , G06F17/30241 , G06T17/05 , G09B29/006 , G09B29/007
摘要： To provide map data to a client device for rendering a raster map image including map elements corresponding to various physical entities, map data is generated in a non-raster format. A method includes generating a description of a map feature that includes two or more of the map elements and does not include at least one of the map elements, where the map elements included in the map feature correspond to related physical entities or portions of a same physical entity. Generating a description of the map feature includes providing an indication of a portion of the map data corresponding to the map feature providing a map feature identifier that uniquely identifies the map feature. The method further includes causing the map data and the description of the map feature to be transmitted to the client device via a communication network.
摘要翻译：为了向客户端设备提供地图数据，用于呈现包括对应于各种物理实体的地图元素的光栅地图图像，以非光栅格式生成地图数据。一种方法包括生成包括两个或更多个地图元素的地图特征的描述，并且不包括地图元素中的至少一个，其中包括在地图特征中的地图元素对应于相关的物理实体或相同的部分物理实体。生成地图特征的描述包括提供对应于地图特征的地图数据的一部分的指示，提供唯一地标识地图特征的地图特征标识符。该方法还包括使地图数据和地图特征的描述经由通信网络发送到客户端设备。

4. 发明授权

US08560600B2 Managing map elements using aggregate feature identifiers 有权
标题翻译：使用聚合特征标识符管理地图元素
公开(公告)号：US08560600B2
公开(公告)日：2013-10-15
申请号：US13244716
申请日：2011-09-26
申请人： Jennifer Maurer , Brian Cornell , Daniel Otero
发明人： Jennifer Maurer , Brian Cornell , Daniel Otero
IPC分类号： G06F15/16
CPC分类号： G06T11/00 , G01C21/3667 , G06F17/30241 , G06T17/05 , G09B29/006 , G09B29/007
摘要： To provide map data to a client device for rendering a raster map image including map elements corresponding to various physical entities, map data is generated in a non-raster format. A method includes generating a description of a map feature that includes two or more of the map elements and does not include at least one of the map elements, where the map elements included in the map feature correspond to related physical entities or portions of a same physical entity. Generating a description of the map feature includes providing an indication of a portion of the map data corresponding to the map feature providing a map feature identifier that uniquely identifies the map feature. The method further includes causing the map data and the description of the map feature to be transmitted to the client device via a communication network.
摘要翻译：为了向客户端设备提供地图数据，用于呈现包括对应于各种物理实体的地图元素的光栅地图图像，以非光栅格式生成地图数据。一种方法包括生成包括两个或更多个地图元素的地图特征的描述，并且不包括地图元素中的至少一个，其中包括在地图特征中的地图元素对应于相关的物理实体或相同的部分物理实体。生成地图特征的描述包括提供对应于地图特征的地图数据的一部分的指示，提供唯一地标识地图特征的地图特征标识符。该方法还包括使地图数据和地图特征的描述经由通信网络发送到客户端设备。

5. 发明授权

US08681176B1 Rendering a map using style identifiers 有权
标题翻译：使用样式标识符呈现地图
公开(公告)号：US08681176B1
公开(公告)日：2014-03-25
申请号：US13244808
申请日：2011-09-26
申请人： Jennifer Maurer , Sean Egan , Brian Cornell
发明人： Jennifer Maurer , Sean Egan , Brian Cornell
IPC分类号： G09G5/00 , G09G5/02 , G08G1/123 , G06F3/00 , G06F3/048 , G06K9/36 , G06K9/60 , G06F15/16
CPC分类号： G01C21/367 , G01C21/32 , G06F3/14 , G06K9/00476 , G06K9/4604 , G06T11/00 , G09G2360/122 , G09G2370/022
摘要： A map server generates vector descriptors and corresponding style identifiers for rendering a map image. Each vector descriptor indicates a geometry of a respective map element in accordance with a vector graphics format, and each style identifier identifies a style according to which the corresponding map element is rendered. The map server then causes map data including the vector descriptors and the style identifiers to be transmitted to the client device via a communication network. When the map server receives a request for style data for modifying a map image at the client device, the map server generates a description of visual characteristics for one or more styles identified by the style identifiers included in the map data previously provided to the client device and causes the description of visual characteristics to be transmitted to the client device for applying to the vector descriptors at the client device.
摘要翻译：地图服务器生成矢量描述符和对应的样式标识符，用于渲染地图图像。每个向量描述符根据向量图形格式指示各个地图元素的几何形状，并且每个样式标识符标识根据该样式呈现对应的地图元素。然后，地图服务器将包括矢量描述符和样式标识符的地图数据通过通信网络发送到客户端设备。当地图服务器接收到用于在客户端设备处修改地图图像的样式数据的请求时，地图服务器生成由包括在先前提供给客户端设备的地图数据中的样式标识符识别的一种或多种风格的视觉特征的描述并且使视觉特征的描述被发送到客户端设备以应用于客户端设备处的向量描述符。

6. 发明申请

US20130093750A1 USE OF BANDING TO OPTIMIZE MAP RENDERING IN A THREE-DIMENSIONAL TILT VIEW 审中-公开
标题翻译：使用带宽优化三维倾斜视图中的地图渲染
公开(公告)号：US20130093750A1
公开(公告)日：2013-04-18
申请号：US13271391
申请日：2011-10-12
申请人： Brian Cornell , Jennifer Maurer
发明人： Brian Cornell , Jennifer Maurer
IPC分类号： G06T15/00
CPC分类号： G06T15/00 , G01C21/3635 , G01C21/367 , G06T17/05 , G06T2210/08 , G06T2210/36 , G09B29/003 , G09B29/005
摘要： A graphics or image rendering system, such as a map image rendering system, determines a viewing window of a map surface to be displayed. The method generally determines a set of viewing boundaries of the map surface, wherein the set of viewing boundaries divide the map surface into a plurality of viewing bands based on a depth dimension range. The method then determines different zoom level map data for each viewing band and renders a three-dimensional display of the map surface based on the viewing bands and zoom level map data.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统确定要显示的地图表面的观看窗口。该方法通常确定地图表面的一组观看边界，其中观看边界集合基于深度尺寸范围将地图表面划分成多个观看带。该方法然后确定每个观看带的不同缩放级别地图数据，并且基于观看带和缩放级别地图数据呈现地图表面的三维显示。

7. 发明授权

US08237745B1 Label positioning technique to reduce crawling during zoom activities 有权
标题翻译：标签定位技术，以减少缩放活动期间的爬行
公开(公告)号：US08237745B1
公开(公告)日：2012-08-07
申请号：US13244742
申请日：2011-09-26
申请人： Brian Cornell , Jennifer Maurer
发明人： Brian Cornell , Jennifer Maurer
IPC分类号： G09G5/00
CPC分类号： G01C21/3673
摘要： A graphics or image rendering system, such as a map image rendering system, receives image data from an image database in the form of vector data that defines various features of the map, such as roads, boundaries, etc., in addition to text strings or symbols to be displayed with the features to provide, for example, labels for the features. The label positioning technique generally divides the displayed road feature into a number of road segments and then labels each road segment in a sequence based on an ordered set of labels and a position of each road segment.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统以除了文本字符串之外的定义地图的各种特征（例如道路，边界等）的向量数据的形式从图像数据库接收图像数据或要与特征一起显示的符号，以提供例如用于特征的标签。标签定位技术通常将所显示的道路特征划分为多个路段，然后基于标签的有序集合和每个路段的位置按顺序标记每个路段。

8. 发明授权

US08976188B1 Optimized data communication system and method for an image rendering system 有权
标题翻译：用于图像渲染系统的优化数据通信系统和方法
公开(公告)号：US08976188B1
公开(公告)日：2015-03-10
申请号：US13445740
申请日：2012-04-20
申请人： Brian Cornell
发明人： Brian Cornell
IPC分类号： G06T15/00
CPC分类号： G06T15/005
摘要： A graphics or image rendering system, such as a map image rendering system, receives image data from an image database, such as a map database, in the form of vector data having image object elements defined as sets of vertex data points. The image rendering system stores and tabulates the vertex data points used to render an image object element. A code specifies a number of vertex data points that can be obtained from a tracking table as well as an amount of vertex data points to be sent from the image database. An image rendering engine uses the stored and transmitted vertex data points to render the image object element to be displayed.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统以具有被定义为顶点数据点集合的图像对象元素的向量数据的形式从诸如地图数据库的图像数据库接收图像数据。图像渲染系统存储和制表用于渲染图像对象元素的顶点数据点。代码指定可以从跟踪表获得的多个顶点数据点以及从图像数据库发送的顶点数据点的数量。图像渲染引擎使用存储和发送的顶点数据点来渲染要显示的图像对象元素。

9. 发明授权

US09430866B2 Derivative-based selection of zones for banded map display 有权
标题翻译：用于带状地图显示的基于导数的区域选择
公开(公告)号：US09430866B2
公开(公告)日：2016-08-30
申请号：US13566387
申请日：2012-08-03
申请人： Brian Cornell
发明人： Brian Cornell
IPC分类号： G09G5/00 , G06T15/20 , G06T17/05
CPC分类号： G06T15/20 , G06T17/05
摘要： A graphics or image rendering system, such as a map image rendering system, determines a viewing window of a map surface to be displayed, wherein the viewing plane is at an angle of incidence with respect to the map surface. The method generally determines a depth boundary along the map surface where a height projection of a depth increment of a first unit of area is lower than a threshold height increment at a non-zero angle of incidence and at a single zoom level magnification. The method renders the first unit of area within the depth boundary and a second unit of area outside the depth boundary. The first unit of area is rendered at a first density of map data and the second unit of area is rendered at a second density of map data that is lower than the first density of map data.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统确定要显示的地图表面的观看窗口，其中观看平面相对于地图表面具有入射角。该方法通常确定沿着地图表面的深度边界，其中第一单位面积的深度增量的高度投影低于非零入射角的阈值高度增量和单个缩放水平放大率。该方法使深度边界内的第一单位面积和深度边界外的第二单位面积。区域的第一单位以地图数据的第一密度呈现，并且第二区域单元以比地图数据的第一密度低的地图数据的第二密度呈现。

10. 发明授权

US09092907B2 Image shader using two-tiered lookup table for implementing style attribute references 有权
标题翻译：图像着色器使用两层查找表来实现样式属性引用
公开(公告)号：US09092907B2
公开(公告)日：2015-07-28
申请号：US13174351
申请日：2011-06-30
申请人： Brian Cornell
发明人： Brian Cornell
IPC分类号： G06T15/50
CPC分类号： G06T15/506 , G01C21/36 , G06F3/14 , G06T15/005 , G09G5/00 , G09G2340/14 , G09G2350/00
摘要： A graphics or image rendering system, such as a map image rendering system, receives image data from an image database, such as a map database, in the form of vector data having image features defined as sets of vertex data. The vertex data includes location data as well as an attribute reference pointer variable value that references a first lookup table, in the form of a texture map, which is sent to or generated in the image rendering system. The attribute reference variable value stored in the first lookup table is then used to reference a second lookup table, which may also be in the form of a texture map, to determine the specific values for a plurality of vertex attributes or properties, as stored in the second look up table. The image rendering system thus processes the vector data in a manner that allows for minimal data to be sent to the image rendering system from the image database or between processors of the image rendering device, as this system enables multiple vertex properties to be specified and easily changed by changing a single attribute reference pointer variable value for each vertex data point.
摘要翻译：诸如地图图像呈现系统的图形或图像呈现系统以具有被定义为顶点数据集合的图像特征的向量数据的形式从诸如地图数据库的图像数据库接收图像数据。顶点数据包括位置数据以及属性参考指针变量值，该参考指针变量值以纹理映射的形式引用第一查找表，该第一查找表发送到图像呈现系统中或在图像呈现系统中生成。然后，存储在第一查找表中的属性参考变量值用于引用第二查找表，其也可以是纹理映射的形式，以确定多个顶点属性或属性的特定值，如存储在第二查询表。因此，图像渲染系统以允许将最小数据从图像数据库或图像呈现设备的处理器发送到图像渲染系统的方式处理矢量数据，因为该系统能够容易地指定多个顶点属性通过更改每个顶点数据点的单个属性引用指针变量值来更改。

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