31 lines
835 B
JavaScript
31 lines
835 B
JavaScript
!function() {
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var ex = {};
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/* Requires:
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* - point.js
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* - fx.js
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* - fx_view.js
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*/
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ex.box_pt = {x: 600, y: 400};
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/* w :: Window */
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ex.start = function(w)
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{
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ex.pt2screen = fx.linear_fn(pt.sub_pt(pt.scale_pt(0.5, ex.box_pt),
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fx.eval_fn(0.0) /*ctr_fx*/),
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200.0 /*scale_factor*/);
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ex.screen2pt = fx.linear_inverse_fn(pt.sub_pt(pt.scale_pt(0.5, ex.box_pt),
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fx.eval_fn(0.0) /*ctr_fx*/),
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200.0 /*scale_factor*/);
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ex.target_pt_v = fx.make_target_pt_v(fx.eval_fn,
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-1.66, +5.0, 200.0 /*n_pt*/,
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ex.pt2screen, ex.box_pt);
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fx_view.init_drag_function(ex.box_pt,
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ex.target_pt_v, ex.pt2screen, ex.screen2pt);
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fx_view.draw("#frame", ex.box_pt, ex.target_pt_v,
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ex.pt2screen, ex.screen2pt);
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}
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this.ex = ex;
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}();
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