Method, system and apparatus for rendering a map according to a stylesheet
First Claim
1. A method, comprising:
- performing, by a computing device;
obtaining from a server, by a mapping application, one or more map tiles, wherein each of said map tiles comprises one or more features, wherein one or more of said features comprise one or more style identifiers;
rendering the obtained one or more map tiles for display on the computing device, wherein each feature comprising one or more style identifiers is rendered according to a previously obtained stylesheet at the computing device, wherein the stylesheet comprises one or more styles, wherein each style comprises rendering instructions for the style, wherein the rendering instructions comprise a plurality of values for the style each associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein each style is linked to one or more style identifiers, wherein a comparison of the one or more style identifiers of the feature to the one or more style identifiers linked to the one or more styles of the previously obtained stylesheet determines a style for the feature, and wherein the feature is rendered at a particular zoom level according to a corresponding one of the plurality of values from the rendering instructions for the determined style;
changing the particular zoom level of the one or more rendered map tiles to a different zoom level; and
rendering at least one of the previously obtained one or more map tiles for display on the computing device at the different zoom level according to the previously obtained stylesheet, wherein the feature is rendered at the different zoom level according to a different value from the previously obtained stylesheet associated with the different zoom level than the value associated with the particular zoom level.
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Accused Products
Abstract
Methods, systems and apparatus are described to render a map according to a style sheet. Several embodiments of map rendering are described that may be suitable for rendering individual portions of a map, known as map tiles, which may include one or more features. Embodiments may obtain one or more a map tiles with features that may have one or more style identifiers. Embodiments may identify a style from a stylesheet for each feature in the map tile according to style identifiers in the feature and the style in the stylesheet. Some embodiments may render the one or more map tiles according to the identified styles and may display the rendered map tiles. In some embodiments, a map service generates one or more map tiles with features including style identifiers and sends the one or more map tiles to a client rendering device.
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Citations
26 Claims
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1. A method, comprising:
performing, by a computing device; obtaining from a server, by a mapping application, one or more map tiles, wherein each of said map tiles comprises one or more features, wherein one or more of said features comprise one or more style identifiers; rendering the obtained one or more map tiles for display on the computing device, wherein each feature comprising one or more style identifiers is rendered according to a previously obtained stylesheet at the computing device, wherein the stylesheet comprises one or more styles, wherein each style comprises rendering instructions for the style, wherein the rendering instructions comprise a plurality of values for the style each associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein each style is linked to one or more style identifiers, wherein a comparison of the one or more style identifiers of the feature to the one or more style identifiers linked to the one or more styles of the previously obtained stylesheet determines a style for the feature, and wherein the feature is rendered at a particular zoom level according to a corresponding one of the plurality of values from the rendering instructions for the determined style; changing the particular zoom level of the one or more rendered map tiles to a different zoom level; and rendering at least one of the previously obtained one or more map tiles for display on the computing device at the different zoom level according to the previously obtained stylesheet, wherein the feature is rendered at the different zoom level according to a different value from the previously obtained stylesheet associated with the different zoom level than the value associated with the particular zoom level. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
performing, by one or more computing devices; generating by a map service one or more map tiles, wherein each of said map tiles comprise one or more features, wherein one or more of said features comprise one or more style identifiers, wherein said style identifiers are linked to one or more styles defined in one or more stylesheets previously stored on a rendering client, wherein the one or more styles comprise rendering instructions that comprise a plurality of values, wherein each value of the plurality of values is associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein a particular value of the plurality of values defines how a graphically displayable attribute of a particular feature of the one or more features is rendered at a particular zoom level of the plurality of zoom levels such that the particular feature of the particular map tile is configured for rendering at more than one of the plurality of zoom levels based on the plurality of values of the one or more stylesheets previously stored on the rendering client; and sending the generated one or more map tiles to the rendering client, wherein said rendering client is configured to render the one or more features of the one or more map tiles at different zoom levels according to the one or more stylesheets previously stored on the rendering client. - View Dependent Claims (9, 10, 11)
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12. A system, comprising:
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a touch-sensitive display device; at least one processor; and a memory comprising program instructions, wherein the program instructions implement a mapping component executable by the at least one processor to; obtain from a server one or more map tiles, wherein each of said map tiles comprises one or more features, wherein one or more of said features comprise one or more style identifiers; identify for each feature comprising one or more style identifiers in each of the obtained one or more map tiles a style according to a previously obtained stylesheet at the system, wherein the stylesheet comprises one or more styles, wherein each style comprises rendering instructions for the style, wherein the rendering instructions comprise a plurality of values for the style each associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein each style is linked to one or more style identifiers, and wherein a comparison of the one or more style identifiers of the feature to the one or more style identifiers linked to the one or more styles of the previously obtained stylesheet determines a style for the feature; render the obtained one or more map tiles for display on the display device according to the identified styles for each feature in each of the obtained one or more map tiles, wherein the feature is rendered at a particular zoom level according to a corresponding one of the plurality of values from the rendering instructions for the identified style; change the particular zoom level of the one or more rendered map tiles to a different zoom level; and render at least one of the previously obtained one or more map tiles for display on the display device at the different zoom level according to the previously obtained stylesheet, wherein the feature is rendered at the different zoom level according to a different value from the previously obtained stylesheet associated with the different zoom level than the value associated with the particular zoom level. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system, comprising:
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at least one processor; and a memory comprising program instructions, wherein the program instructions implement a map service executable by the one or more processors to; generate one or more map tiles, wherein each of said map tiles comprise one or more features, wherein one or more of said features comprise one or more style identifiers, wherein said style identifiers are linked to one or more styles defined in one or more stylesheets stored on a remote system, wherein the one or more styles comprise rendering instructions that comprise a plurality of values, wherein each value of the plurality of values is associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein a particular value of the plurality of values defines how a graphically displayable attribute of a particular feature of the one or more features is rendered at particular zoom level of the plurality of zoom levels, such that the particular feature of the particular map tile is configured for rendering at more than one of the plurality of zoom levels based on the plurality of values of the one or more stylesheets previously stored on the rendering client; and send the generated one or more map tiles to the remote system, wherein said remote system is configured to render the one or more features of the one or more map tiles at different zoom levels according to the one or more stylesheets previously stored on the remote system. - View Dependent Claims (19, 20)
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21. A non-transitory, computer-readable storage medium, storing program instructions, wherein the program instructions are computer-executable to implement a mapping application configured to implement:
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obtaining from a server one or more map tiles, wherein each of said map tiles comprises one or more features, wherein one or more of said features comprise one or more style identifiers; identifying for each feature comprising one or more style identifiers in each of the obtained one or more map tiles a style according to a previously obtained stylesheet, wherein the stylesheet comprises one or more styles, wherein each style comprises rendering instructions for the style, wherein the rendering instructions comprise a plurality of values for the style each associated with rendering the style at a respective zoom level of a plurality of zoom levels, wherein each style is linked to one or more style identifiers, and wherein a comparison of the one or more style identifiers of the feature to the one or more style identifiers linked to the one or more styles of the previously obtained stylesheet determines a style for the feature; rendering the obtained one or more map tiles according to the identified styles for each feature in each of the obtained one or more map tiles, wherein the feature is rendered at a particular zoom level according to a corresponding one of the plurality of values from the rendering instructions for the identified style; and displaying the obtained one or more map tiles on a display device; changing the particular zoom level of the one or more displayed map tiles to a different zoom level; and rendering at least one of the previously obtained one or more map tiles at the different zoom level according to the previously obtained stylesheet, wherein the feature is rendered at the different zoom level according to a different value from the previously obtained stylesheet associated with the different zoom level than the value associated with the particular zoom level. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification