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Created April 11, 2016 17:14
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Cesium.Math.setRandomNumberSeed(1234);
var viewer = new Cesium.Viewer('cesiumContainer');
var scene = viewer.scene;
var primitives = scene.primitives;
var solidWhite = Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.WHITE);
// Combine instances for an rectangle, polygon, ellipse, and circle into a single primitive.
var rectangle = Cesium.Rectangle.fromDegrees(-92.0, 20.0, -86.0, 27.0);
var rectangleInstance = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleGeometry({
rectangle : rectangle,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT,
stRotation : Cesium.Math.toRadians(45)
})
});
var rectangleOutlineInstance = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleOutlineGeometry({
rectangle : rectangle
}),
attributes : {
color : solidWhite
}
});
var positions = Cesium.Cartesian3.fromDegreesArray([
-107.0, 27.0,
-107.0, 22.0,
-102.0, 23.0,
-97.0, 21.0,
-97.0, 25.0
]);
var polygonInstance = new Cesium.GeometryInstance({
geometry : Cesium.PolygonGeometry.fromPositions({
positions : positions,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
var polygonOutlineInstance = new Cesium.GeometryInstance({
geometry : Cesium.PolygonOutlineGeometry.fromPositions({
positions : positions
}),
attributes : {
color : solidWhite
}
});
var center = Cesium.Cartesian3.fromDegrees(-80.0, 25.0);
var semiMinorAxis = 300000.0;
var semiMajorAxis = 500000.0;
var rotation = Cesium.Math.toRadians(-40.0);
var ellipseInstance = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
rotation : rotation,
stRotation : Cesium.Math.toRadians(22),
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
var ellipseOutlineInstance = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseOutlineGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
rotation : rotation
}),
attributes : {
color : solidWhite
}
});
center = Cesium.Cartesian3.fromDegrees(-72.0, 25.0);
var radius = 250000.0;
var circleInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CircleGeometry({
center : center,
radius : radius,
stRotation : Cesium.Math.toRadians(90),
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
var circleOutlineInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CircleOutlineGeometry({
center : center,
radius : radius
}),
attributes : {
color : solidWhite
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : [rectangleInstance, polygonInstance, ellipseInstance, circleInstance],
appearance : new Cesium.EllipsoidSurfaceAppearance({
material : Cesium.Material.fromType('Stripe')
})
}));
primitives.add(new Cesium.Primitive({
geometryInstances : [rectangleOutlineInstance, polygonOutlineInstance, ellipseOutlineInstance, circleOutlineInstance],
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
// Create extruded rectangle
rectangle = Cesium.Rectangle.fromDegrees(-118.0, 38.0, -116.0, 40.0);
var extrudedHeight = 500000.0;
var extrudedRectangle = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleGeometry({
rectangle : rectangle,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
extrudedHeight : extrudedHeight
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var extrudedOutlineRectangle = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleOutlineGeometry({
rectangle : rectangle,
extrudedHeight : extrudedHeight
}),
attributes : {
color : solidWhite
}
});
// Create extruded ellipse
center = Cesium.Cartesian3.fromDegrees(-117.0, 35.0);
semiMinorAxis = 100000.0;
semiMajorAxis = 200000.0;
rotation = Cesium.Math.toRadians(90);
var height = 100000.0;
extrudedHeight = 200000.0;
var extrudedEllipse = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
height : height,
rotation : rotation,
extrudedHeight : extrudedHeight
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var extrudedOutlineEllipse = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseOutlineGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
height : height,
rotation : rotation,
extrudedHeight : extrudedHeight
}),
attributes : {
color : solidWhite
}
});
// Create extruded polygon
var polygonHierarchy = {
positions : Cesium.Cartesian3.fromDegreesArray([
-118.0, 30.0,
-115.0, 30.0,
-117.1, 31.1,
-118.0, 33.0
])
};
height = 300000.0;
extrudedHeight = 700000.0;
var extrudedPolygon = new Cesium.GeometryInstance({
geometry : new Cesium.PolygonGeometry({
polygonHierarchy : polygonHierarchy,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
extrudedHeight : extrudedHeight,
height : height
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var extrudedOutlinePolygon = new Cesium.GeometryInstance({
geometry : new Cesium.PolygonOutlineGeometry({
polygonHierarchy : polygonHierarchy,
extrudedHeight : extrudedHeight,
height : height
}),
attributes : {
color : solidWhite
}
});
// cylinder
var length = 200000.0;
var topRadius = 150000.0;
var bottomRadius = 150000.0;
var modelMatrix = Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-70.0, 45.0)),
new Cesium.Cartesian3(0.0, 0.0, 100000.0), new Cesium.Matrix4());
var cylinderInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CylinderGeometry({
length : length,
topRadius : topRadius,
bottomRadius : bottomRadius,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
modelMatrix : modelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var cylinderOutlineInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CylinderOutlineGeometry({
length : length,
topRadius : topRadius,
bottomRadius : bottomRadius
}),
modelMatrix : modelMatrix,
attributes : {
color : solidWhite
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : [extrudedPolygon, extrudedRectangle, extrudedEllipse, cylinderInstance],
appearance : new Cesium.PerInstanceColorAppearance({
translucent : false,
closed : true
})
}));
primitives.add(new Cesium.Primitive({
geometryInstances : [extrudedOutlineRectangle, extrudedOutlineEllipse, extrudedOutlinePolygon, cylinderOutlineInstance],
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
// Create box and ellipsoid boxes, and use the instance's
// modelMatrix to scale and position them.
var dimensions = new Cesium.Cartesian3(1.0, 1.0, 1.0);
var boxGeometry = Cesium.BoxGeometry.fromDimensions({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
dimensions : dimensions
});
var boxOutlineGeometry = Cesium.BoxOutlineGeometry.fromDimensions({
dimensions : dimensions
});
var radii = new Cesium.Cartesian3(0.5, 0.5, 1.0);
var ellipsoidGeometry = new Cesium.EllipsoidGeometry({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
radii : radii
});
var ellipsoidOutlineGeometry = new Cesium.EllipsoidOutlineGeometry({
radii : radii,
stackPartitions : 6,
slicePartitions : 5
});
radius = 0.75;
var sphereGeometry = new Cesium.SphereGeometry({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
radius : radius
});
var sphereOutlineGeometry = new Cesium.SphereOutlineGeometry({
radius : radius,
stackPartitions : 6,
slicePartitions : 5
});
var instances = [];
var outlineInstances = [];
var i;
var boxModelMatrix, ellipsoidModelMatrix, sphereModelMatrix;
for (i = 0; i < 5; ++i) {
height = 100000.0 + (200000.0 * i);
boxModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-106.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
ellipsoidModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-102.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
sphereModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-98.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
instances.push(new Cesium.GeometryInstance({
geometry : boxGeometry,
modelMatrix : boxModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
}));
outlineInstances.push(new Cesium.GeometryInstance({
geometry : boxOutlineGeometry,
modelMatrix : boxModelMatrix,
attributes : {
color : solidWhite
}
}));
instances.push(new Cesium.GeometryInstance({
geometry : ellipsoidGeometry,
modelMatrix : ellipsoidModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
}));
outlineInstances.push(new Cesium.GeometryInstance({
geometry : ellipsoidOutlineGeometry,
modelMatrix : ellipsoidModelMatrix,
attributes : {
color : solidWhite
}
}));
instances.push(new Cesium.GeometryInstance({
geometry : sphereGeometry,
modelMatrix : sphereModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
}));
outlineInstances.push(new Cesium.GeometryInstance({
geometry : sphereOutlineGeometry,
modelMatrix : sphereModelMatrix,
attributes : {
color : solidWhite
}
}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : instances,
appearance : new Cesium.PerInstanceColorAppearance({
translucent : false,
closed : true
})
}));
primitives.add(new Cesium.Primitive({
geometryInstances : outlineInstances,
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
// Create a single wall
positions = Cesium.Cartesian3.fromDegreesArray([
-95.0, 50.0,
-85.0, 50.0,
-75.0, 50.0
]);
var maximumHeights = [500000, 1000000, 500000];
var minimumHeights = [0, 500000, 0];
var wallInstance = new Cesium.GeometryInstance({
geometry : new Cesium.WallGeometry({
positions : positions,
maximumHeights : maximumHeights,
minimumHeights : minimumHeights,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.7}))
}
});
var wallOutlineInstance = new Cesium.GeometryInstance({
geometry : new Cesium.WallOutlineGeometry({
positions : positions,
maximumHeights : maximumHeights,
minimumHeights : minimumHeights
}),
attributes : {
color : new Cesium.ColorGeometryInstanceAttribute(0.7, 0.7, 0.7, 1.0)
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : wallInstance,
appearance : new Cesium.PerInstanceColorAppearance()
}));
primitives.add(new Cesium.Primitive({
geometryInstances : wallOutlineInstance,
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
rectangle = Cesium.Rectangle.fromDegrees(-92.0, 30.0, -85.0, 40.0);
rectangleInstance = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleGeometry({
rectangle : rectangle,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
polygonHierarchy = {
positions : Cesium.Cartesian3.fromDegreesArray([
-109.0, 30.0,
-95.0, 30.0,
-95.0, 40.0,
-109.0, 40.0
]),
holes : [{
positions : Cesium.Cartesian3.fromDegreesArray([
-107.0, 31.0,
-107.0, 39.0,
-97.0, 39.0,
-97.0, 31.0
]),
holes : [{
positions : Cesium.Cartesian3.fromDegreesArray([
-105.0, 33.0,
-99.0, 33.0,
-99.0, 37.0,
-105.0, 37.0
]),
holes : [{
positions : Cesium.Cartesian3.fromDegreesArray([
-103.0, 34.0,
-101.0, 34.0,
-101.0, 36.0,
-103.0, 36.0
])
}]
}]
}]
};
polygonInstance = new Cesium.GeometryInstance({
geometry : new Cesium.PolygonGeometry({
polygonHierarchy : polygonHierarchy,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
center = Cesium.Cartesian3.fromDegrees(-80.0, 35.0);
semiMinorAxis = 200000.0;
semiMajorAxis = 500000.0;
rotation = Cesium.Math.toRadians(30.0);
ellipseInstance = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
rotation : rotation,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
center = Cesium.Cartesian3.fromDegrees(-72.0, 35.0);
radius = 200000.0;
circleInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CircleGeometry({
center : center,
radius : radius,
vertexFormat : Cesium.EllipsoidSurfaceAppearance.VERTEX_FORMAT
})
});
primitives.add(new Cesium.Primitive({
geometryInstances : [rectangleInstance, polygonInstance, ellipseInstance, circleInstance],
appearance : new Cesium.EllipsoidSurfaceAppearance({
material : Cesium.Material.fromType('Stripe')
})
}));
// Create extruded rectangle
rectangle = Cesium.Rectangle.fromDegrees(-110.0, 38.0, -107.0, 40.0);
height = 700000.0;
extrudedHeight = 1000000.0;
rotation = Cesium.Math.toRadians(45.0);
extrudedRectangle = new Cesium.GeometryInstance({
geometry : new Cesium.RectangleGeometry({
rectangle : rectangle,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
height : height,
rotation : rotation,
extrudedHeight : extrudedHeight
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
// Create extruded ellipse
center = Cesium.Cartesian3.fromDegrees(-110.0, 35.0);
semiMinorAxis = 100000.0;
semiMajorAxis = 200000.0;
rotation = Cesium.Math.toRadians(-40.0);
height = 300000.0;
extrudedHeight = 700000.0;
extrudedEllipse = new Cesium.GeometryInstance({
geometry : new Cesium.EllipseGeometry({
center : center,
semiMinorAxis : semiMinorAxis,
semiMajorAxis : semiMajorAxis,
rotation : rotation,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
height : height,
extrudedHeight : extrudedHeight
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
// Create extruded polygon
polygonHierarchy = {
positions : Cesium.Cartesian3.fromDegreesArray([
-113.0, 30.0,
-110.0, 30.0,
-110.0, 33.0,
-111.5, 31.0,
-113.0, 33.0
])
};
extrudedHeight = 300000.0;
extrudedPolygon = new Cesium.GeometryInstance({
geometry : new Cesium.PolygonGeometry({
polygonHierarchy : polygonHierarchy,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
extrudedHeight : extrudedHeight
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
// cylinder
length = 400000.0;
topRadius = 0.0;
bottomRadius = 200000.0;
modelMatrix = Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-70.0, 40.0)), new Cesium.Cartesian3(0.0, 0.0, 200000.0), new Cesium.Matrix4());
cylinderInstance = new Cesium.GeometryInstance({
geometry : new Cesium.CylinderGeometry({
length : length,
topRadius : topRadius,
bottomRadius : bottomRadius,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
modelMatrix : modelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : [extrudedPolygon, extrudedRectangle, extrudedEllipse, cylinderInstance],
appearance : new Cesium.PerInstanceColorAppearance({
translucent : false,
closed : true
})
}));
// Combine instances each with a unique color.
// We can combine heterogeneous geometries as we
// do here as long as vertex formats match.
instances = [];
center = Cesium.Cartesian3.fromDegrees(-65.0, 35.0);
radius = 200000.0;
rectangle = Cesium.Rectangle.fromDegrees(-67.0, 27.0, -63.0, 32.0);
for (i = 0; i < 5; ++i) {
height = 200000.0 * i;
instances.push(new Cesium.GeometryInstance({
geometry : new Cesium.CircleGeometry({
center : center,
radius : radius,
height : height,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.5}))
}
}));
instances.push(new Cesium.GeometryInstance({
geometry : new Cesium.RectangleGeometry({
rectangle : rectangle,
height : height,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.5}))
}
}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : instances,
appearance : new Cesium.PerInstanceColorAppearance()
}));
// Create box and ellipsoid boxes, and use the instance's
// modelMatrix to scale and position them.
dimensions = new Cesium.Cartesian3(1.0, 1.0, 1.0);
boxGeometry = Cesium.BoxGeometry.fromDimensions({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
dimensions : dimensions
});
radii = new Cesium.Cartesian3(0.5, 0.5, 1.0);
ellipsoidGeometry = new Cesium.EllipsoidGeometry({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
radii : radii
});
radius = 0.75;
sphereGeometry = new Cesium.SphereGeometry({
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
radius : radius
});
instances = [];
outlineInstances = [];
for (i = 0; i < 5; ++i) {
height = 100000.0 + (200000.0 * i);
boxModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-108.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
ellipsoidModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-104.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
sphereModelMatrix = Cesium.Matrix4.multiplyByUniformScale(Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
Cesium.Cartesian3.fromDegrees(-100.0, 45.0)), new Cesium.Cartesian3(0.0, 0.0, height), new Cesium.Matrix4()), 90000.0, new Cesium.Matrix4());
instances.push(new Cesium.GeometryInstance({
geometry : boxGeometry,
modelMatrix : boxModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.5}))
}
}));
instances.push(new Cesium.GeometryInstance({
geometry : ellipsoidGeometry,
modelMatrix : ellipsoidModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.5}))
}
}));
instances.push(new Cesium.GeometryInstance({
geometry : sphereGeometry,
modelMatrix : sphereModelMatrix,
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.5}))
}
}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : instances,
appearance : new Cesium.PerInstanceColorAppearance({
translucent : true,
closed : true
})
}));
positions = [];
var colors = [];
for (i = 0; i < 40; ++i) {
positions.push(Cesium.Cartesian3.fromDegrees(-100.0 + i, 48.0));
colors.push(Cesium.Color.fromRandom({alpha : 1.0}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : new Cesium.GeometryInstance({
geometry : new Cesium.SimplePolylineGeometry({
positions : positions,
colors : colors
})
}),
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
renderState : {
// Override the appearance render state to change the
// line width on system's that support it (Linx/Mac).
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
// create a polyline with a material
positions = [];
for (i = 0; i < 40; ++i) {
positions.push(Cesium.Cartesian3.fromDegrees(-100.0 + i, 15.0));
}
primitives.add(new Cesium.Primitive({
geometryInstances : new Cesium.GeometryInstance({
geometry : new Cesium.PolylineGeometry({
positions : positions,
width : 10.0,
vertexFormat : Cesium.PolylineMaterialAppearance.VERTEX_FORMAT
})
}),
appearance : new Cesium.PolylineMaterialAppearance({
material : Cesium.Material.fromType(Cesium.Material.PolylineGlowType)
})
}));
// create a polyline with per segment colors
positions = [];
colors = [];
for (i = 0; i < 40; ++i) {
positions.push(Cesium.Cartesian3.fromDegrees(-100.0 + i, 12.0));
colors.push(Cesium.Color.fromRandom({alpha : 1.0}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : new Cesium.GeometryInstance({
geometry : new Cesium.PolylineGeometry({
positions : positions,
width : 10.0,
vertexFormat : Cesium.PolylineColorAppearance.VERTEX_FORMAT,
colors : colors
})
}),
appearance : new Cesium.PolylineColorAppearance()
}));
// create a polyline with per vertex colors
positions = [];
colors = [];
for (i = 0; i < 40; ++i) {
positions.push(Cesium.Cartesian3.fromDegrees(-100.0 + i, 9.0));
colors.push(Cesium.Color.fromRandom({alpha : 1.0}));
}
primitives.add(new Cesium.Primitive({
geometryInstances : new Cesium.GeometryInstance({
geometry : new Cesium.PolylineGeometry({
positions : positions,
width : 10.0,
vertexFormat : Cesium.PolylineColorAppearance.VERTEX_FORMAT,
colors : colors,
colorsPerVertex : true
})
}),
appearance : new Cesium.PolylineColorAppearance()
}));
// Create a single wall
positions = Cesium.Cartesian3.fromDegreesArrayHeights([
-90.0, 43.0, 100000.0,
-87.5, 45.0, 100000.0,
-85.0, 43.0, 100000.0,
-87.5, 41.0, 100000.0,
-90.0, 43.0, 100000.0
]);
wallInstance = new Cesium.GeometryInstance({
geometry : new Cesium.WallGeometry({
positions : positions
})
});
primitives.add(new Cesium.Primitive({
geometryInstances : wallInstance,
appearance : new Cesium.MaterialAppearance({
material : Cesium.Material.fromType('Checkerboard', {
repeat : new Cesium.Cartesian2(20.0, 6.0)
})
})
}));
positions = Cesium.Cartesian3.fromDegreesArray([
-120.0, 45.0,
-125.0, 50.0,
-125.0, 55.0
]);
var width = 100000;
var corridor = new Cesium.GeometryInstance({
geometry : new Cesium.CorridorGeometry({
positions : positions,
width : width,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var extrudedCorridor = new Cesium.GeometryInstance({
geometry : new Cesium.CorridorGeometry({
positions : positions,
width : width,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
height : 300000,
extrudedHeight : 400000
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.7}))
}
});
var corridorOutline = new Cesium.GeometryInstance({
geometry : new Cesium.CorridorOutlineGeometry({
positions : positions,
width : width,
height : 700000
}),
attributes : {
color : solidWhite
}
});
var corridorFill = new Cesium.GeometryInstance({
geometry : new Cesium.CorridorGeometry({
positions : positions,
width : width,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
height : 700000
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 0.7}))
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : [corridor, extrudedCorridor, corridorFill],
appearance : new Cesium.PerInstanceColorAppearance({
translucent : true,
closed : true
})
}));
primitives.add(new Cesium.Primitive({
geometryInstances : corridorOutline,
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : Math.min(4.0, scene.maximumAliasedLineWidth)
}
})
}));
function starPositions(arms, rOuter, rInner) {
var angle = Math.PI / arms;
var pos = [];
for ( var i = 0; i < 2 * arms; i++) {
var r = (i % 2) === 0 ? rOuter : rInner;
var p = new Cesium.Cartesian2(Math.cos(i * angle) * r, Math.sin(i * angle) * r);
pos.push(p);
}
return pos;
}
positions = Cesium.Cartesian3.fromDegreesArrayHeights([
-102.0, 15.0, 100000.0,
-105.0, 20.0, 200000.0,
-110.0, 20.0, 100000.0
]);
var polylineVolumeFill = new Cesium.GeometryInstance({
geometry : new Cesium.PolylineVolumeGeometry({
polylinePositions : positions,
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
shapePositions : starPositions(7, 30000.0, 20000.0)
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
var polylineVolumeOutline = new Cesium.GeometryInstance({
geometry : new Cesium.PolylineVolumeOutlineGeometry({
polylinePositions : positions,
shapePositions : starPositions(7, 30000.0, 20000.0)
}),
attributes : {
color : solidWhite
}
});
var polylineVolume = new Cesium.GeometryInstance({
geometry : new Cesium.PolylineVolumeGeometry({
polylinePositions : Cesium.Cartesian3.fromDegreesArray([
-102.0, 15.0,
-105.0, 20.0,
-110.0, 20.0
]),
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
shapePositions : starPositions(7, 30000, 20000)
}),
attributes : {
color : Cesium.ColorGeometryInstanceAttribute.fromColor(Cesium.Color.fromRandom({alpha : 1.0}))
}
});
function computeCircle(radius) {
var positions = [];
for (var i = 0; i < 360; i++) {
var radians = Cesium.Math.toRadians(i);
positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
}
return positions;
}
var tubeGeometry = new Cesium.GeometryInstance({
geometry : new Cesium.PolylineVolumeGeometry({
polylinePositions : Cesium.Cartesian3.fromDegreesArray([
-104.0, 13.0,
-107.0, 18.0,
-112.0, 18.0
]),
vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
shapePositions : computeCircle(40000.0)
}),
attributes : {
color : solidWhite
}
});
primitives.add(new Cesium.Primitive({
geometryInstances : [tubeGeometry, polylineVolume, polylineVolumeFill],
appearance : new Cesium.PerInstanceColorAppearance({
translucent : false,
closed : true
})
}));
primitives.add(new Cesium.Primitive({
geometryInstances : polylineVolumeOutline,
appearance : new Cesium.PerInstanceColorAppearance({
flat : true,
translucent : false,
renderState : {
lineWidth : 1.0
}
})
}));
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