diff options
Diffstat (limited to 'tools/viz/survive_viewer.js')
-rw-r--r-- | tools/viz/survive_viewer.js | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/viz/survive_viewer.js b/tools/viz/survive_viewer.js index 56ef47f..075e56a 100644 --- a/tools/viz/survive_viewer.js +++ b/tools/viz/survive_viewer.js @@ -49,6 +49,9 @@ function add_lighthouse(idx, p, q) { } function recolorTrackers(when) { + if(ctx == undefined) + return; + for (var key in angles) { var colors = []; @@ -143,7 +146,7 @@ function redrawCanvas(when) { ang[0][1] < when[key] - visible_tolerance) continue; - var half_fov = 1.0472 * 2 / 5.; + var half_fov = 1.0472 * 2.; var x = ang[0][0] / half_fov * canvas.width / 2 + canvas.width / 2; var y = -ang[1][0] / half_fov * canvas.height / 2 + canvas.height / 2; @@ -501,6 +504,6 @@ function animate() { } function render() { - var use_fpv = $("#fpv")[0].checked; + var use_fpv = $("#fpv").length > 0 && $("#fpv")[0].checked; renderer.render(scene, use_fpv ? fpv_camera : camera); } |