pointInsideTriangle

pointInsideTriangle

Determines if a point is inside a triangle.
Name Type Description
point Cartesian2 | Cartesian3 The point to test.
p0 Cartesian2 | Cartesian3 The first point of the triangle.
p1 Cartesian2 | Cartesian3 The second point of the triangle.
p2 Cartesian2 | Cartesian3 The third point of the triangle.
Returns:
true if the point is inside the triangle; otherwise, false.
Example:
// Returns true
var p = new Cesium.Cartesian2(0.25, 0.25);
var b = Cesium.pointInsideTriangle(p,
  new Cesium.Cartesian2(0.0, 0.0),
  new Cesium.Cartesian2(1.0, 0.0),
  new Cesium.Cartesian2(0.0, 1.0));
Source: Core/pointInsideTriangle.js, line 32

pointInsideTriangle

Computes the barycentric coordinates for a point with respect to a triangle.
Name Type Description
point Cartesian2 | Cartesian3 The point to test.
p0 Cartesian2 | Cartesian3 The first point of the triangle, corresponding to the barycentric x-axis.
p1 Cartesian2 | Cartesian3 The second point of the triangle, corresponding to the barycentric y-axis.
p2 Cartesian2 | Cartesian3 The third point of the triangle, corresponding to the barycentric z-axis.
result Cartesian3 optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartesian3 instance if one was not provided.
Example:
// Returns Cartesian3.UNIT_X
var p = new Cesium.Cartesian3(-1.0, 0.0, 0.0);
var b = Cesium.barycentricCoordinates(p,
  new Cesium.Cartesian3(-1.0, 0.0, 0.0),
  new Cesium.Cartesian3( 1.0, 0.0, 0.0),
  new Cesium.Cartesian3( 0.0, 1.0, 1.0));
Source: Core/barycentricCoordinates.js, line 39