Re: [cesium-dev] Static Maps API Imagery Provider Functionality

[Scott Hunter]

It appears that this use is prohibited by the Google Maps API Terms of Service.

https://developers.google.com/maps/terms

Specifically, 10.5.b states:

"For example, the following are prohibited: ... (ii) stitching multiple static map images together to display a map that is larger than permitted in the Maps APIs Documentation; "

On Fri, Jun 9, 2017 at 7:26 PM, Reno Sun <reno.s...@gmail.com> wrote:

Hi all,

I would think it will be an great feature to have a new imagery provider called new Cesium.GoogleStaticImageryProvider under Cesium.js.

The user will have to provide their own API key for using Google Static Maps API Imagery.

'http://maps.googleapis.com/maps/api/staticmap?' +

                                'key=API KEY' +

                                'maptype=street&' +

                                'size=' + gridSize + 'x' + gridSize + '&' +

                                'zoom=' + zoom + '&' +

                                'center=' + center[1] + ',' + center[0];

I am able to use OpenLayers3 API to display Google Static Maps API Imagery as one of our base map on our OL3 application.

My codes looks like following, and I believe we can do the same with Cesium.js:

var gridSize = 640;

var gstreet = new ol.layer.Tile({

                    preload: Infinity,

                    source: new ol.source.TileImage({

                        attributions: [

                            new ol.Attribution({

                                html: '<a href="https://www.google.com/intl/en-GB_US/help/terms_maps.html">Google Map</a>'

                            }),

                            ol.source.OSM.ATTRIBUTION

                        ],

                        tileGrid: new ol.tilegrid.TileGrid({

                            extent: [

                                -13860793.173271,

                                6329131.950797,

                                -13845619.906785,

                                6337107.916410

                            ],

                            resolutions: [156543.03390625, 78271.516953125, 39135.7584765625,

                                19567.87923828125, 9783.939619140625, 4891.9698095703125,

                                2445.9849047851562, 1222.9924523925781, 611.4962261962891,

                                305.74811309814453, 152.87405654907226, 76.43702827453613,

                                38.218514137268066, 19.109257068634033, 9.554628534317017,

                                4.777314267158508, 2.388657133579254, 1.194328566789627,

                                0.5971642833948135, 0.2986, 0.1493],

                            tileSize: [gridSize, gridSize]

                        }),

                        tileUrlFunction: function (tileCoord, pixelRatio, projection) {

                            var zoom = tileCoord[0];

                            var tileGrid = this.getTileGrid();

                            var center = ol.proj.transform(ol.extent.getCenter(tileGrid.getTileCoordExtent(tileCoord)), "EPSG:3857", "EPSG:4326");

                            //console.log(center[0]);

                            //console.log(center[1]);

                            return 'http://maps.googleapis.com/maps/api/staticmap?' +

                                'key=API KEY&' +

                                'maptype=street&' +

                                'size=' + gridSize + 'x' + gridSize + '&' +

                                'zoom=' + zoom + '&' +

                                'center=' + center[1] + ',' + center[0]

                                ;

                        },

                        maxZoom: 21

                    }),

                    visible: false,

                    name: 'Google Street'

                });

If you would like to see the live example, please visit Town of Qualicum Beach Public Mapping & GIS.

http://maps.qualicumbeach.com/qbmap/mobileMapViewer/MobileMap.aspx?m=Property&curextent=-13862379.983422471,6328581.485049227,-13844035.096634028,6337658.382158091&zoom=14&blyr=TTFFFFTFF 

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