| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title> perspective composition</title> |
| <link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-perspective"> |
| <meta name="assert" content="perspective supports animation"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <body> |
| <script> |
| test_composition({ |
| property: 'perspective', |
| underlying: '50px', |
| addFrom: '100px', |
| addTo: '200px', |
| }, [ |
| {at: -0.3, expect: '120px'}, |
| {at: 0, expect: '150px'}, |
| {at: 0.5, expect: '200px'}, |
| {at: 1, expect: '250px'}, |
| {at: 1.5, expect: '300px'}, |
| ]); |
| |
| test_composition({ |
| property: 'perspective', |
| underlying: '100px', |
| addFrom: '10px', |
| addTo: '2px', |
| }, [ |
| {at: -0.5, expect: '114px'}, |
| {at: 0, expect: '110px'}, |
| {at: 0.5, expect: '106px'}, |
| {at: 1, expect: '102px'}, |
| {at: 1.5, expect: '98px'}, // Value clamping should happen after composition. |
| ]); |
| |
| test_composition({ |
| property: 'perspective', |
| underlying: '50px', |
| addFrom: '100px', |
| replaceTo: '200px', |
| }, [ |
| {at: -0.3, expect: '135px'}, |
| {at: 0, expect: '150px'}, |
| {at: 0.5, expect: '175px'}, |
| {at: 1, expect: '200px'}, |
| {at: 1.5, expect: '225px'}, |
| ]); |
| |
| test_composition({ |
| property: 'perspective', |
| underlying: '100px', |
| addFrom: '100px', |
| addTo: 'none', |
| }, [ |
| {at: -0.3, expect: '200px'}, |
| {at: 0, expect: '200px'}, |
| {at: 0.5, expect: 'none'}, |
| {at: 1, expect: 'none'}, |
| {at: 1.5, expect: 'none'}, |
| ]); |
| </script> |
| </body> |
