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#include <mbgl/test/util.hpp>
#include <mbgl/test/stub_geometry_tile_feature.hpp>
#include <mbgl/style/function/composite_function.hpp>
#include <mbgl/style/expression/dsl.hpp>
using namespace mbgl;
using namespace mbgl::style;
using namespace mbgl::style::expression::dsl;
using namespace std::string_literals;
static StubGeometryTileFeature oneInteger {
PropertyMap {{ "property", uint64_t(1) }}
};
TEST(CompositeFunction, ZoomInterpolation) {
EXPECT_EQ(40.0f, CompositeFunction<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(24.0)),
1.5, interpolate(linear(), number(get("property")), 1.0, literal(36.0)),
3.0, interpolate(linear(), number(get("property")), 1.0, literal(48.0))
), 0.0f)
.evaluate(2.0f, oneInteger, -1.0f)) << "Should interpolate between stops";
EXPECT_EQ(33.0, CompositeFunction<float>(
interpolate(linear(), zoom(),
5.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(0.0f, oneInteger, -1.0f)) << "Use first stop output for input values from -inf to first stop";
EXPECT_EQ(66.0, CompositeFunction<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(20.0f, oneInteger, -1.0f)) << "Use last stop output for input values from last stop to +inf";
EXPECT_EQ(66.0f, CompositeFunction<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(10.0f, oneInteger, -1.0f)) << "Should interpolate TO the last stop.";
EXPECT_EQ(33.0f, CompositeFunction<float>(
interpolate(linear(), zoom(),
0.0, interpolate(linear(), number(get("property")), 1.0, literal(33.0)),
10.0, interpolate(linear(), number(get("property")), 1.0, literal(66.0))
), 0.0f)
.evaluate(0.0f, oneInteger, -1.0f)) << "Should interpolate TO the first stop";
}
TEST(CompositeFunction, Issue8460) {
CompositeFunction<float> fn1(
interpolate(linear(), zoom(),
15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
15.2, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
), 0.0f);
EXPECT_NEAR( 0.0f, fn1.evaluate(15.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(300.0f, fn1.evaluate(15.1f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(600.0f, fn1.evaluate(15.2f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(600.0f, fn1.evaluate(16.0f, oneInteger, -1.0f), 0.00);
CompositeFunction<float> fn2(
interpolate(linear(), zoom(),
15.0, interpolate(linear(), number(get("property")), 1.0, literal(0.0)),
15.2, interpolate(linear(), number(get("property")), 1.0, literal(300.0)),
18.0, interpolate(linear(), number(get("property")), 1.0, literal(600.0))
), 0.0f);
EXPECT_NEAR( 0.0f, fn2.evaluate(15.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(150.0f, fn2.evaluate(15.1f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(300.0f, fn2.evaluate(15.2f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(385.71f, fn2.evaluate(16.0f, oneInteger, -1.0f), 0.01);
EXPECT_NEAR(600.0f, fn2.evaluate(18.0f, oneInteger, -1.0f), 0.00);
EXPECT_NEAR(600.0f, fn2.evaluate(19.0f, oneInteger, -1.0f), 0.00);
}
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