公开(公告)号：US09542724B1

公开(公告)日：2017-01-10

申请号：US14153951

申请日：2014-01-13

Applicant: GOOGLE INC.

Inventor： John Rosasco ,  Travis McPhail ,  Paul Vincent Byrne ,  Daniel Jared Epstein ,  Jim Brooks

IPC: G06T17/05 ,  G06T3/40 ,  G06T15/80 ,  G06T11/00

CPC classification number: G06T3/4007 ,  G06T11/00 ,  G06T11/203 ,  G06T11/40 ,  G06T15/04 ,  G06T15/503 ,  G06T15/80 ,  G06T17/05 ,  G06T2210/36 ,  G06T2210/62

Abstract: To provide smoothly scaleable map features on interactive digital maps, a first and a second sets of style parameters for rendering a map feature at a first zoom level and a second zoom level, respectively, are received. The first and second sets of style parameters are provided to a vertex shader. The vertex shader is configured to interpolate the first set of style parameters and the second set of style parameters to generate an interpolated set of style parameters for a certain zoom level between the first zoom level and the second zoom level, and render the map feature at the certain zoom level in accordance with the interpolated set of style parameters.

Abstract translation: 为了在交互式数字地图上提供平稳可缩放的地图特征，接收分别用于在第一缩放级别和第二缩放级别渲染地图特征的第一和第二组风格参数。 第一和第二组样式参数提供给顶点着色器。 顶点着色器被配置为内插第一组样式参数和第二组样式参数，以生成用于第一缩放级别和第二缩放级别之间的特定缩放级别的内插样式参数集合，并且将地图特征呈现在 根据插值的样式参数组，某些缩放级别。