// // Tests for polygon querying with varying levels of accuracy // var numTests = 31; for (var n = 0; n < numTests; n++) { t = db.geo_polygon3; t.drop(); num = 0; for (x = 1; x < 9; x++) { for (y = 1; y < 9; y++) { o = { _id: num++, loc: [x, y] }; t.save(o); } } t.ensureIndex({loc: "2d"}, {bits: 2 + n}); triangle = [[0, 0], [1, 1], [0, 2]]; // Look at only a small slice of the data within a triangle assert.eq(1, t.find({loc: {"$within": {"$polygon": triangle}}}).itcount(), "Triangle Test"); boxBounds = [[0, 0], [0, 10], [10, 10], [10, 0]]; assert.eq( num, t.find({loc: {"$within": {"$polygon": boxBounds}}}).itcount(), "Bounding Box Test"); // Look in a box much bigger than the one we have data in boxBounds = [[-100, -100], [-100, 100], [100, 100], [100, -100]]; assert.eq(num, t.find({loc: {"$within": {"$polygon": boxBounds}}}).itcount(), "Big Bounding Box Test"); t.drop(); pacman = [ [0, 2], [0, 4], [2, 6], [4, 6], // Head [6, 4], [4, 3], [6, 2], // Mouth [4, 0], [2, 0] // Bottom ]; t.save({loc: [1, 3]}); // Add a point that's in t.ensureIndex({loc: "2d"}, {bits: 2 + t}); assert.eq(1, t.find({loc: {$within: {$polygon: pacman}}}).itcount(), "Pacman single point"); t.save({loc: [5, 3]}); // Add a point that's out right in the mouth opening t.save({loc: [3, 7]}); // Add a point above the center of the head t.save({loc: [3, -1]}); // Add a point below the center of the bottom assert.eq(1, t.find({loc: {$within: {$polygon: pacman}}}).itcount(), "Pacman double point"); }