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fix distance calculation

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This commit is contained in:
Josh de Leeuw 2021-02-19 17:03:33 -05:00
parent 25ee508ea1
commit 14a1891f13
1 changed files with 1 additions and 1 deletions
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plugins/jspsych-virtual-chinrest.js
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@ -423,7 +423,7 @@ jsPsych.plugins["virtual-chinrest"] = (function () {
var ball_sqr_distance =
(blindspot_config_data["square_pos"] - blindspot_config_data["avg_ball_pos"]) /
trial_data["px2mm"];
var viewDistance = ball_sqr_distance / Math.radians(angle);
var viewDistance = ball_sqr_distance / Math.tan(Math.radians(angle));
trial_data["view_dist_mm"] = accurateRound(viewDistance, 2);
//counter and stop