diff options
Diffstat (limited to 'lib/reltool/src/reltool_fgraph_win.erl')
| -rw-r--r-- | lib/reltool/src/reltool_fgraph_win.erl | 267 |
1 files changed, 169 insertions, 98 deletions
diff --git a/lib/reltool/src/reltool_fgraph_win.erl b/lib/reltool/src/reltool_fgraph_win.erl index b063fb94ba..c2054cc865 100644 --- a/lib/reltool/src/reltool_fgraph_win.erl +++ b/lib/reltool/src/reltool_fgraph_win.erl @@ -95,7 +95,7 @@ change_node(Pid, Key, Color) -> Pid ! {change_node, Key, Color}. add_link(Pid, {FromKey, ToKey}) -> Pid ! {add_link, {FromKey, ToKey}}. del_link(Pid, {FromKey, ToKey}) -> Pid ! {del_link, {FromKey, ToKey}}. -stop(Pid, Reason) -> +stop(Pid, Reason) -> Ref = erlang:monitor(process, Pid), Pid ! {stop, Reason}, receive @@ -110,21 +110,24 @@ new(Parent, Options) -> Me = self(), Pid = spawn_link(fun() -> init([Parent, Me, Env, Options]) end), receive {Pid, {?MODULE, Panel}} -> {Pid,Panel} end. - + init([ParentWin, Pid, Env, Options]) -> wx:set_env(Env), - + BReset = wxButton:new(ParentWin, ?reset, [{label,"Reset"}]), BFreeze = wxButton:new(ParentWin, ?freeze, [{label,"Freeze"}]), BLock = wxButton:new(ParentWin, ?lock, [{label,"Lock"}]), BUnlock = wxButton:new(ParentWin, ?unlock, [{label,"Unlock"}]), BDelete = wxButton:new(ParentWin, ?delete, [{label,"Delete"}]), - SQ = wxSlider:new(ParentWin, ?q_slider, ?default_q, 1, 500, [{style, ?wxVERTICAL}]), - SL = wxSlider:new(ParentWin, ?l_slider, ?default_l, 1, 500, [{style, ?wxVERTICAL}]), - SK = wxSlider:new(ParentWin, ?k_slider, ?default_k, 1, 500, [{style, ?wxVERTICAL}]), + SQ = wxSlider:new(ParentWin, ?q_slider, ?default_q, 1, 500, + [{style, ?wxVERTICAL}]), + SL = wxSlider:new(ParentWin, ?l_slider, ?default_l, 1, 500, + [{style, ?wxVERTICAL}]), + SK = wxSlider:new(ParentWin, ?k_slider, ?default_k, 1, 500, + [{style, ?wxVERTICAL}]), Win = wxWindow:new(ParentWin, ?wxID_ANY, Options), - + ButtonSizer = wxBoxSizer:new(?wxVERTICAL), wxSizer:add(ButtonSizer, BReset), wxSizer:add(ButtonSizer, BFreeze), @@ -141,31 +144,34 @@ init([ParentWin, Pid, Env, Options]) -> WindowSizer = wxBoxSizer:new(?wxHORIZONTAL), wxSizer:add(WindowSizer, ButtonSizer, [{flag, ?wxEXPAND}, {proportion, 0}]), wxSizer:add(WindowSizer, Win, [{flag, ?wxEXPAND}, {proportion, 1}]), - + wxButton:setToolTip(BReset, "Remove selection and unlock all nodes."), wxButton:setToolTip(BFreeze, "Start/stop redraw of screen."), wxButton:setToolTip(BLock, "Lock all selected nodes."), wxButton:setToolTip(BUnlock, "Unlock all selected nodes."), wxButton:setToolTip(BDelete, "Delete all selected nodes."), - wxButton:setToolTip(SQ, "Control repulsive force. This can also be controlled with the mouse wheel on the canvas."), + wxButton:setToolTip(SQ, "Control repulsive force. This can also be" + " controlled with the mouse wheel on the canvas."), wxButton:setToolTip(SL, "Control link length."), wxButton:setToolTip(SK, "Control attractive force. Use with care."), - wxButton:setToolTip(Win, - "Drag mouse while left mouse button is pressed to perform various operations. " - "Combine with control key to select. Combine with shift key to lock single node."), + wxButton:setToolTip(Win, + "Drag mouse while left mouse button is pressed " + "to perform various operations. " + "Combine with control key to select. Combine " + "with shift key to lock single node."), wxButton:connect(BReset, command_button_clicked), wxButton:connect(BFreeze, command_button_clicked), wxButton:connect(BLock, command_button_clicked), wxButton:connect(BUnlock, command_button_clicked), wxButton:connect(BDelete, command_button_clicked), - + wxWindow:connect(SQ, command_slider_updated), wxWindow:connect(SL, command_slider_updated), wxWindow:connect(SK, command_slider_updated), - - wxWindow:connect(Win, enter_window), + + wxWindow:connect(Win, enter_window), wxWindow:connect(Win, move), wxWindow:connect(Win, motion), wxWindow:connect(Win, mousewheel), @@ -174,7 +180,7 @@ init([ParentWin, Pid, Env, Options]) -> wxWindow:connect(Win, left_up), wxWindow:connect(Win, right_down), wxWindow:connect(Win, paint, [{skip, true}]), - + Pen = wxPen:new({0,0,0}, [{width, 3}]), Font = wxFont:new(12, ?wxSWISS, ?wxNORMAL, ?wxNORMAL,[]), Brush = wxBrush:new({0,0,0}), @@ -182,13 +188,13 @@ init([ParentWin, Pid, Env, Options]) -> Pid ! {self(), {?MODULE, WindowSizer}}, wxWindow:setFocus(Win), %% Get keyboard focus - + Vs = reltool_fgraph:new(), Es = reltool_fgraph:new(), Me = self(), Ticker = spawn_link(fun() -> ticker_init(Me) end), - + loop( #state{ parent_pid = Pid, q_slider = SQ, l_slider = SL, @@ -215,14 +221,17 @@ graph_add_node(Key, Color, G = #graph{ vs = Vs}) -> M = 0.5, % mass P = {float(450 + random:uniform(100)), float(450 + random:uniform(100))}, - G#graph{ vs = reltool_fgraph:add(Key, #fg_v{ p = P, m = M, q = Q, color = Color}, Vs)}. + G#graph{ vs = reltool_fgraph:add(Key, + #fg_v{ p = P, m = M, q = Q, color = Color}, + Vs)}. graph_change_node(Key, Color, G) -> case reltool_fgraph:get(Key, G#graph.vs) of - undefined -> + undefined -> G; V -> - G#graph{ vs = reltool_fgraph:set(Key, V#fg_v{ color = Color }, G#graph.vs)} + G#graph{ vs = reltool_fgraph:set(Key, V#fg_v{ color = Color }, + G#graph.vs)} end. graph_del_node(Key, G = #graph{ vs = Vs0, es = Es0}) -> @@ -231,7 +240,7 @@ graph_del_node(Key, G = #graph{ vs = Vs0, es = Es0}) -> G#graph{ vs = Vs, es = Es }. graph_add_link(Key0, Key1, G = #graph{ es = Es}) -> - K = 60.0, % attractive force + K = 60.0, % attractive force L = 5.0, % spring length G#graph{ es = reltool_fgraph:add({Key0, Key1}, #fg_e{ k = K, l = L}, Es) }. @@ -249,15 +258,17 @@ ticker_loop(Pid, Time) -> D = timer:now_diff(T1, T0)/1000, case round(40 - D) of Ms when Ms < 0 -> - %io:format("ticker: wait is 0 ms [fg ~7s ms] [fps ~7s]~n", [s(D), s(1000/D)]), + %io:format("ticker: wait is 0 ms [fg ~7s ms] [fps ~7s]~n", + % [s(D), s(1000/D)]), ticker_loop(Pid, 0); Ms -> - %io:format("ticker: wait is ~3s ms [fg ~7s ms] [fps ~7s]~n", [s(Ms), s(D), s(1000/40)]), + %io:format("ticker: wait is ~3s ms [fg ~7s ms] [fps ~7s]~n", + % [s(Ms), s(D), s(1000/40)]), ticker_loop(Pid, Ms) end end. -delete_edges(Es, []) -> +delete_edges(Es, []) -> Es; delete_edges(Es, [Key|Keys]) -> Edges = reltool_fgraph:foldl(fun @@ -269,7 +280,7 @@ delete_edges(Es, [Key|Keys]) -> (K, Esi) -> reltool_fgraph:del(K, Esi) end, Es, Edges), delete_edges(Es1, Keys). - + set_charge(Q, Vs) -> % Repulsive force F = fun({Key, Value}) -> {Key, Value#fg_v{ q = Q}} end, @@ -295,36 +306,47 @@ loop(S, G) -> wxSlider:setValue(S#state.k_slider, K), Es = set_length(L, G#graph.es), Es2 = set_spring(K, Es), - - Vs2 = reltool_fgraph:map(fun({Key, V}) -> - {Key, V#fg_v{selected = false, type = dynamic, q = Q}} - end, - G#graph.vs), - - {Xs, Ys} = reltool_fgraph:foldl(fun({_Key, #fg_v{p = {X, Y}}}, {Xs, Ys}) -> - {[X| Xs], [Y | Ys]} - end, - {[], []}, - Vs2), + + Vs2 = + reltool_fgraph:map(fun({Key, V}) -> + {Key, V#fg_v{selected = false, + type = dynamic, + q = Q}} + end, + G#graph.vs), + + {Xs, Ys} = + reltool_fgraph:foldl(fun({_Key, + #fg_v{p = {X, Y}}}, {Xs, Ys}) -> + {[X| Xs], [Y | Ys]} + end, + {[], []}, + Vs2), %% io:format("Before: ~p\n", [G#graph.offset]), Offset = case length(Xs) of 0 -> {0, 0}; N -> - MeanX = (lists:sum(Xs) / N), + MeanX = (lists:sum(Xs) / N), MeanY = (lists:sum(Ys) / N), {SizeX, SizeY} = wxWindow:getSize(S#state.window), - %% io:format("Min: ~p\n", [{lists:min(Xs), lists:min(Ys)}]), - %% io:format("Mean: ~p\n", [{MeanX, MeanY}]), - %% io:format("Max: ~p\n", [{lists:max(Xs), lists:max(Ys)}]), + %% io:format("Min: ~p\n", + %% [{lists:min(Xs), lists:min(Ys)}]), + %% io:format("Mean: ~p\n", + %% [{MeanX, MeanY}]), + %% io:format("Max: ~p\n", + %% [{lists:max(Xs), lists:max(Ys)}]), %% io:format("Size: ~p\n", [{SizeX, SizeY}]), %% {XM - (XS / 2), YM - (YS / 2)} %% {0 - lists:min(Xs) + 20, 0 - lists:min(Ys) + 20} {0 - MeanX + (SizeX / 2), 0 - MeanY + (SizeY / 2)} end, %% io:format("After: ~p\n", [Offset]), - loop(S, G#graph{vs = Vs2, es = Es2, offset = Offset, offset_state = false}); + loop(S, G#graph{vs = Vs2, + es = Es2, + offset = Offset, + offset_state = false}); #wx{id = ?freeze, event = #wxCommand{type=command_button_clicked}} -> %% Start/stop redraw of screen IsFrozen = @@ -354,10 +376,15 @@ loop(S, G) -> loop(S, G#graph{ vs = Vs }); #wx{id = ?delete, event = #wxCommand{type=command_button_clicked}} -> %% Delete all selected nodes - {Vs1, Keys} = reltool_fgraph:foldl(fun - ({Key, #fg_v{ selected = true}}, {Vs, Ks}) -> - {reltool_fgraph:del(Key,Vs), [Key|Ks]}; - (_, {Vs, Ks}) -> {Vs, Ks} + {Vs1, Keys} = + reltool_fgraph:foldl(fun + ({Key, + #fg_v{ selected = true}}, + {Vs, Ks}) -> + {reltool_fgraph:del(Key,Vs), + [Key|Ks]}; + (_, {Vs, Ks}) -> + {Vs, Ks} end, {G#graph.vs,[]}, G#graph.vs), Es = delete_edges(G#graph.es, Keys), loop(S, G#graph{ vs = Vs1, es = Es}); @@ -368,20 +395,26 @@ loop(S, G) -> #wx{id = ?move, event = #wxCommand{type=command_button_clicked}} -> loop(S#state{ mouse_act = ?move }, G); - #wx{id = ?q_slider, event = #wxCommand{type=command_slider_updated, commandInt = Q}} -> + #wx{id = ?q_slider, event = #wxCommand{type=command_slider_updated, + commandInt = Q}} -> loop(S, G#graph{ vs = set_charge(Q, G#graph.vs)}); - #wx{id = ?l_slider, event = #wxCommand{type=command_slider_updated, commandInt = L}} -> + #wx{id = ?l_slider, event = #wxCommand{type=command_slider_updated, + commandInt = L}} -> loop(S, G#graph{ es = set_length(L, G#graph.es)}); - #wx{id = ?k_slider, event = #wxCommand{type=command_slider_updated, commandInt = K}} -> + #wx{id = ?k_slider, event = #wxCommand{type=command_slider_updated, + commandInt = K}} -> loop(S, G#graph{ es = set_spring(K, G#graph.es)}); #wx{event=#wxKey{type=key_up, keyCode = 127}} -> % delete {Vs1, Keys} = - reltool_fgraph:foldl(fun({Key, #fg_v{ selected = true}}, {Vs, Ks}) -> - {reltool_fgraph:del(Key,Vs), [Key|Ks]}; - (_, {Vs, Ks}) -> - {Vs, Ks} - end, - {G#graph.vs,[]}, G#graph.vs), + reltool_fgraph:foldl(fun({Key, + #fg_v{ selected = true}}, + {Vs, Ks}) -> + {reltool_fgraph:del(Key,Vs), + [Key|Ks]}; + (_, {Vs, Ks}) -> + {Vs, Ks} + end, + {G#graph.vs,[]}, G#graph.vs), Es = delete_edges(G#graph.es, Keys), loop(S, G#graph{ vs = Vs1, es = Es}); #wx{event=#wxKey{type=key_up}} -> @@ -390,7 +423,11 @@ loop(S, G) -> loop(S, G); %% mouse - #wx{event=#wxMouse{type=left_down, shiftDown=Shift, controlDown=Ctrl, x=X, y=Y}} -> + #wx{event=#wxMouse{type=left_down, + shiftDown=Shift, + controlDown=Ctrl, + x=X, + y=Y}} -> if Shift -> loop(S, mouse_left_down_move(G, {X,Y})); @@ -401,7 +438,11 @@ loop(S, G) -> S#state.mouse_act =:= ?select -> loop(S, mouse_left_down_select(G, {X,Y})) end; - #wx{event=#wxMouse{type=motion, shiftDown=Shift, controlDown=Ctrl, x=X, y=Y}} -> + #wx{event=#wxMouse{type=motion, + shiftDown=Shift, + controlDown=Ctrl, + x=X, + y=Y}} -> if Shift -> loop(S, mouse_motion_move(G, {X,Y})); @@ -412,7 +453,9 @@ loop(S, G) -> S#state.mouse_act =:= ?select -> loop(S, mouse_motion_select(G, {X,Y})) end; - #wx{event=#wxMouse{type=left_up, shiftDown=Shift, controlDown=Ctrl, x=X, y=Y}} -> + #wx{event=#wxMouse{type=left_up, + shiftDown=Shift, + controlDown=Ctrl, x=X, y=Y}} -> if Shift -> loop(S, mouse_left_up_move(G, {X,Y}, Shift)); @@ -424,7 +467,7 @@ loop(S, G) -> loop(S, mouse_left_up_select(G, {X,Y})) end; - #wx{event=#wxMouse{type=right_down,x=_X,y=_Y}} -> + #wx{event=#wxMouse{type=right_down,x=_X,y=_Y}} -> loop(S, G); %% mouse wheel #wx{event=#wxMouse{type=mousewheel, wheelRotation=Rotation}} -> @@ -436,7 +479,7 @@ loop(S, G) -> Rotation < 0 -> wxSlider:setValue(S#state.q_slider, Q + 4), loop(S, G#graph{ vs = set_charge(Q + 4, G#graph.vs) }); - true -> + true -> loop(S, G) end; @@ -448,7 +491,7 @@ loop(S, G) -> redraw(S, G), loop(S, G); #wx{obj=Win,event=#wxMouse{type=enter_window}} -> - wxWindow:setFocus(Win), + wxWindow:setFocus(Win), loop(S, G); %% Graph manipulation @@ -465,9 +508,11 @@ loop(S, G) -> {Req, redraw} -> {SizeX, SizeY} = wxWindow:getSize(S#state.window), - Vs = reltool_fgraph:step(G#graph.vs, G#graph.es, {SizeX/2.0 - 20.0, SizeY/2.0}), + Vs = reltool_fgraph:step(G#graph.vs, + G#graph.es, + {SizeX/2.0 - 20.0, SizeY/2.0}), case S#state.is_frozen of - false -> + false -> Req ! {self(), ok}; true -> ignore @@ -481,7 +526,7 @@ loop(S, G) -> Other -> error_logger:format("~p~p got unexpected message:\n\t~p\n", - [?MODULE, self(), Other]), + [?MODULE, self(), Other]), loop(S, G) end. @@ -494,17 +539,22 @@ mouse_left_down_move(#graph{vs = Vs} = G, {X, Y}) -> false -> G#graph{ offset_state = {X,Y}}; {true, Key} -> - V = #fg_v{ type = Type} = reltool_fgraph:get(Key, Vs), - G#graph{ vs = reltool_fgraph:set(Key, V#fg_v{ type = moving}, Vs), select = {node, Key, Type, X, Y} } + V = #fg_v{ type = Type} = reltool_fgraph:get(Key, Vs), + G#graph{ vs = reltool_fgraph:set(Key, + V#fg_v{ type = moving}, Vs), + select = {node, Key, Type, X, Y} } end. coord_to_key(#graph{vs = Vs, offset = {Xo, Yo}}, {X, Y}) -> Xr = X - Xo, Yr = Y - Yo, - reltool_fgraph:foldl(fun({Key, #fg_v{ p = {Px, Py}}}, _) when abs(Px - Xr) < 10, - abs(Py - Yr) < 10 -> {true, Key}; - (_, Out) -> Out - end, false, Vs). + reltool_fgraph:foldl(fun({Key, #fg_v{ p = {Px, Py}}}, _) + when abs(Px - Xr) < 10, + abs(Py - Yr) < 10 -> + {true, Key}; + (_, Out) -> + Out + end, false, Vs). mouse_left_up_select(G, {_X,_Y}) -> case G#graph.select of @@ -524,7 +574,7 @@ mouse_left_up_select(G, {_X,_Y}) -> _ -> G#graph{ select = none} end. - + mouse_left_up_move(G = #graph{ select = Select, vs = Vs} = G, {X,Y}, Shift) -> case Select of {node, Key, _, X, Y} -> @@ -543,7 +593,7 @@ mouse_left_up_move(G = #graph{ select = Select, vs = Vs} = G, {X,Y}, Shift) -> _ -> G#graph{ select = none, offset_state = false } end. - + mouse_motion_select(G, {X,Y}) -> case G#graph.select of {P0, _P1} -> G#graph{ select = {P0, {X,Y}}}; @@ -557,11 +607,11 @@ mouse_motion_move(G = #graph{ select = {node, Key, _, _, _}, vs = Vs}, {X,Y}) -> G#graph{ vs = reltool_fgraph:set(Key, V2, Vs) }; mouse_motion_move(G, {X,Y}) -> case G#graph.offset_state of - {X1,Y1} -> + {X1,Y1} -> {X0, Y0} = G#graph.offset, G#graph{ offset_state = {X,Y}, offset = {X0 - (X1 - X), Y0 - (Y1 - Y)} }; - _ -> + _ -> G end. @@ -574,9 +624,9 @@ redraw(#state{window=Win}, G) -> wxClientDC:destroy(DC0), ok. -redraw(DC, _Size, G) -> - wx:batch(fun() -> - +redraw(DC, _Size, G) -> + wx:batch(fun() -> + Pen = G#graph.pen, Font = G#graph.font, Brush = G#graph.brush, @@ -587,7 +637,7 @@ redraw(DC, _Size, G) -> wxPen:setWidth(Pen, 1), wxDC:clear(DC), - % draw vertices and edges + % draw vertices and edges wxPen:setColour(Pen, ?color_fg), wxDC:setPen(DC,Pen), @@ -602,7 +652,9 @@ redraw(DC, _Size, G) -> % draw information text wxFont:setWeight(Font,?wxNORMAL), - draw_text(DC, reltool_fgraph:size(G#graph.vs), reltool_fgraph:size(G#graph.es), G#graph.ke), + draw_text(DC, + reltool_fgraph:'size'(G#graph.vs), + reltool_fgraph:'size'(G#graph.es), G#graph.ke), ok end). @@ -612,14 +664,14 @@ draw_select_box(DC, {{X0,Y0}, {X1,Y1}}) -> draw_line(DC, {X1,Y1}, {X0,Y1}, {0,0}), draw_line(DC, {X0,Y0}, {X0,Y1}, {0,0}), ok; -draw_select_box(_DC, _) -> +draw_select_box(_DC, _) -> ok. draw_es(DC, Vs, Es, Po, Pen, Brush) -> reltool_fgraph:foreach(fun ({{K1, K2}, _}) -> - #fg_v{ p = P1} = reltool_fgraph:get(K1, Vs), - #fg_v{ p = P2} = reltool_fgraph:get(K2, Vs), + #fg_v{ p = P1} = reltool_fgraph:'get'(K1, Vs), + #fg_v{ p = P2} = reltool_fgraph:'get'(K2, Vs), draw_arrow(DC, P1, P2, Po, Pen, Brush) end, Es). @@ -650,10 +702,15 @@ draw_arrow(DC, {X0,Y0}, {X1, Y1}, {X, Y}, Pen, Brush) -> wxDC:drawPolygon(DC, Points, []). draw_line(DC, {X0,Y0}, {X1, Y1}, {X, Y}) -> - wxDC:drawLine(DC, {round(X0 + X), round(Y0 + Y)}, {round(X1 + X), round(Y1 + Y)}). - + wxDC:drawLine(DC, + {round(X0 + X), round(Y0 + Y)}, + {round(X1 + X), round(Y1 + Y)}). + draw_vs(DC, Vs, {Xo, Yo}, Pen, Brush) -> - reltool_fgraph:foreach(fun({Key, #fg_v{ p ={X, Y}, color = Color, selected = Sel}}) -> + reltool_fgraph:foreach(fun({Key, + #fg_v{p ={X, Y}, + color = Color, + selected = Sel}}) -> String = s(Key), case Sel of true -> @@ -661,35 +718,49 @@ draw_vs(DC, Vs, {Xo, Yo}, Pen, Brush) -> wxBrush:setColour(Brush, ?color_bg), wxDC:setPen(DC,Pen), wxDC:setBrush(DC, Brush), - SelProps = {round(X-12 + Xo), round(Y-12 + Yo), 24, 24}, - wxDC:drawRoundedRectangle(DC, SelProps, float(?ARC_R)), + SelProps = {round(X-12 + Xo), + round(Y-12 + Yo), + 24, + 24}, + wxDC:drawRoundedRectangle(DC, + SelProps, + float(?ARC_R)), ok; false -> ok end, case Color of - default -> + default -> wxPen:setColour(Pen, ?color_default), - wxBrush:setColour(Brush, ?color_default_bg); - alternate -> - wxPen:setColour(Pen, ?color_alternate), - wxBrush:setColour(Brush, ?color_alternate_bg); + wxBrush:setColour(Brush, + ?color_default_bg); + alternate -> + wxPen:setColour(Pen, + ?color_alternate), + wxBrush:setColour(Brush, + ?color_alternate_bg); {FgColor, BgColor} -> wxPen:setColour(Pen, FgColor), - wxBrush:setColour(Brush, BgColor); + wxBrush:setColour(Brush, BgColor); Color -> wxPen:setColour(Pen, Color), wxBrush:setColour(Brush, Color) end, wxDC:setPen(DC,Pen), wxDC:setBrush(DC, Brush), - NodeProps = {round(X-8 + Xo),round(Y-8 + Yo),17,17}, - wxDC:drawRoundedRectangle(DC, NodeProps, float(?ARC_R)), - wxDC:drawText(DC, String, {round(X + Xo), round(Y + Yo)}), + NodeProps = {round(X-8 + Xo), + round(Y-8 + Yo),17,17}, + wxDC:drawRoundedRectangle(DC, + NodeProps, + float(?ARC_R)), + wxDC:drawText(DC, + String, + {round(X + Xo), + round(Y + Yo)}), ok; (_) -> ok - end, + end, Vs). draw_text(DC, Nvs, Nes, _KE) -> @@ -720,7 +791,7 @@ calc_point({X, Y}, Length, Radians) -> %% %% Convert from an angle in radians to degrees %% radians_to_degrees(Radians) -> %% Radians * 180 / math:pi(). -%% +%% %% %% Convert from an angle in degrees to radians %% degrees_to_radians(Degrees) -> %% Degrees * math:pi() / 180. |