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Dynamic Linkage of LocatorPane and InputField


Question about collections of custom GUI controls for MathematicaInterdependent controls in ManipulateDynamically updating linked Manipulate variablesLocatorPane, Dynamic and deleting locatorsHow can I effectively performance-profile Dynamics?Restrict Sensitivity of Locators in LocatorPane“Masking” an InputFieldGUI and Dynamic update problemsInteracting Dynamic Components within LocatorPanePuzzled with InputFieldDynamic and TabView mayhemHow to create Dynamic InputField Grid for matrix variable?LocatorPane with transformed coordinates













3












$begingroup$


How do I get the InputField to coordinate with the LocatorPane so that a change in each control changes the other to be in agreement? It would be nice if the function was self-contained and was dynamically linked to a second similar control where the variable is radians. The angle control is based on this (see Applications). Related links do not address or solve this particular issue; links such as this this, and this



 fDeg[Dynamic[angleDeg_]] :=   
DynamicModule[{p, angleRad, angleCalc, dtr = Degree},

angleCalc[newp_,
oldp_] := (angleRad =
angleRad + ArcCos[newp.oldp] Sign[Cross[newp].(newp - oldp)];
If[0 < angleRad, angleRad = Mod[angleRad, +2*Pi]];
If[0 > angleRad, angleRad = Mod[angleRad, -2*Pi]];
angleDeg = angleRad/dtr;
f[angleDeg];
p = {Cos[angleRad], Sin[angleRad]});

angleRad = angleDeg*dtr;
p = {Cos[angleRad], Sin[angleRad]};

LocatorPane[Dynamic[p, (angleCalc @@ Normalize /@ {#, p}) &],
Dynamic@Show[
Graphics[{Circle[], Arrowheads[0.15],
Arrow[Dynamic[{{0, 0}, p}]]}, ImageSize -> Tiny],
Graphics[{Dynamic[{Text[
NumberForm[angleDeg, {3, 2}], {0, 0}]}]}]],
Appearance -> None]];

aDeg = 45;

Column[{
"Degrees:",
fDeg[Dynamic[aDeg]],
"aDeg: ",
InputField[Dynamic[aDeg],
FieldSize -> 6]
}, Alignment -> Center]









share|improve this question









$endgroup$

















    3












    $begingroup$


    How do I get the InputField to coordinate with the LocatorPane so that a change in each control changes the other to be in agreement? It would be nice if the function was self-contained and was dynamically linked to a second similar control where the variable is radians. The angle control is based on this (see Applications). Related links do not address or solve this particular issue; links such as this this, and this



     fDeg[Dynamic[angleDeg_]] :=   
    DynamicModule[{p, angleRad, angleCalc, dtr = Degree},

    angleCalc[newp_,
    oldp_] := (angleRad =
    angleRad + ArcCos[newp.oldp] Sign[Cross[newp].(newp - oldp)];
    If[0 < angleRad, angleRad = Mod[angleRad, +2*Pi]];
    If[0 > angleRad, angleRad = Mod[angleRad, -2*Pi]];
    angleDeg = angleRad/dtr;
    f[angleDeg];
    p = {Cos[angleRad], Sin[angleRad]});

    angleRad = angleDeg*dtr;
    p = {Cos[angleRad], Sin[angleRad]};

    LocatorPane[Dynamic[p, (angleCalc @@ Normalize /@ {#, p}) &],
    Dynamic@Show[
    Graphics[{Circle[], Arrowheads[0.15],
    Arrow[Dynamic[{{0, 0}, p}]]}, ImageSize -> Tiny],
    Graphics[{Dynamic[{Text[
    NumberForm[angleDeg, {3, 2}], {0, 0}]}]}]],
    Appearance -> None]];

    aDeg = 45;

    Column[{
    "Degrees:",
    fDeg[Dynamic[aDeg]],
    "aDeg: ",
    InputField[Dynamic[aDeg],
    FieldSize -> 6]
    }, Alignment -> Center]









    share|improve this question









    $endgroup$















      3












      3








      3


      1



      $begingroup$


      How do I get the InputField to coordinate with the LocatorPane so that a change in each control changes the other to be in agreement? It would be nice if the function was self-contained and was dynamically linked to a second similar control where the variable is radians. The angle control is based on this (see Applications). Related links do not address or solve this particular issue; links such as this this, and this



       fDeg[Dynamic[angleDeg_]] :=   
      DynamicModule[{p, angleRad, angleCalc, dtr = Degree},

      angleCalc[newp_,
      oldp_] := (angleRad =
      angleRad + ArcCos[newp.oldp] Sign[Cross[newp].(newp - oldp)];
      If[0 < angleRad, angleRad = Mod[angleRad, +2*Pi]];
      If[0 > angleRad, angleRad = Mod[angleRad, -2*Pi]];
      angleDeg = angleRad/dtr;
      f[angleDeg];
      p = {Cos[angleRad], Sin[angleRad]});

      angleRad = angleDeg*dtr;
      p = {Cos[angleRad], Sin[angleRad]};

      LocatorPane[Dynamic[p, (angleCalc @@ Normalize /@ {#, p}) &],
      Dynamic@Show[
      Graphics[{Circle[], Arrowheads[0.15],
      Arrow[Dynamic[{{0, 0}, p}]]}, ImageSize -> Tiny],
      Graphics[{Dynamic[{Text[
      NumberForm[angleDeg, {3, 2}], {0, 0}]}]}]],
      Appearance -> None]];

      aDeg = 45;

      Column[{
      "Degrees:",
      fDeg[Dynamic[aDeg]],
      "aDeg: ",
      InputField[Dynamic[aDeg],
      FieldSize -> 6]
      }, Alignment -> Center]









      share|improve this question









      $endgroup$




      How do I get the InputField to coordinate with the LocatorPane so that a change in each control changes the other to be in agreement? It would be nice if the function was self-contained and was dynamically linked to a second similar control where the variable is radians. The angle control is based on this (see Applications). Related links do not address or solve this particular issue; links such as this this, and this



       fDeg[Dynamic[angleDeg_]] :=   
      DynamicModule[{p, angleRad, angleCalc, dtr = Degree},

      angleCalc[newp_,
      oldp_] := (angleRad =
      angleRad + ArcCos[newp.oldp] Sign[Cross[newp].(newp - oldp)];
      If[0 < angleRad, angleRad = Mod[angleRad, +2*Pi]];
      If[0 > angleRad, angleRad = Mod[angleRad, -2*Pi]];
      angleDeg = angleRad/dtr;
      f[angleDeg];
      p = {Cos[angleRad], Sin[angleRad]});

      angleRad = angleDeg*dtr;
      p = {Cos[angleRad], Sin[angleRad]};

      LocatorPane[Dynamic[p, (angleCalc @@ Normalize /@ {#, p}) &],
      Dynamic@Show[
      Graphics[{Circle[], Arrowheads[0.15],
      Arrow[Dynamic[{{0, 0}, p}]]}, ImageSize -> Tiny],
      Graphics[{Dynamic[{Text[
      NumberForm[angleDeg, {3, 2}], {0, 0}]}]}]],
      Appearance -> None]];

      aDeg = 45;

      Column[{
      "Degrees:",
      fDeg[Dynamic[aDeg]],
      "aDeg: ",
      InputField[Dynamic[aDeg],
      FieldSize -> 6]
      }, Alignment -> Center]






      dynamic gui-construction interactive






      share|improve this question













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      share|improve this question




      share|improve this question










      asked 2 hours ago









      kmutinykmutiny

      213




      213






















          1 Answer
          1






          active

          oldest

          votes


















          3












          $begingroup$

          Consider the following refactoring of your code



          First, the locator pane is used to set a point location constrained on a circle with unit radius (this part borrowed heavily from an example in the documentation for LocatorPane). A degree value is then calculated from the coordinates of tha tpoint.



          Secondly, the input field is used to read in a degree value, which is then used to update the position of the dynamic point pt using the second argument of Dynamic.



          DynamicModule[
          {pt = {0, 1.}},
          Column[{
          "Degrees:", Dynamic[(ArcTan @@ pt)/Degree],
          LocatorPane[
          Dynamic[pt],
          Graphics[{
          Circle[],
          PointSize[Large],
          Dynamic[Arrow[{{0, 0}, pt/Norm[pt]}]]
          }],
          Appearance -> None
          ],
          InputField[
          Dynamic[(ArcTan @@ pt)/Degree, (pt = N@{Cos[#1 Degree], Sin[#1 Degree]}) &],
          FieldSize -> Tiny
          ]
          }, Alignment -> Center
          ]
          ]


          This keeps both fields in sync with each other:



          animation shows the locator and input field working together






          share|improve this answer









          $endgroup$













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            1 Answer
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            oldest

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            active

            oldest

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            3












            $begingroup$

            Consider the following refactoring of your code



            First, the locator pane is used to set a point location constrained on a circle with unit radius (this part borrowed heavily from an example in the documentation for LocatorPane). A degree value is then calculated from the coordinates of tha tpoint.



            Secondly, the input field is used to read in a degree value, which is then used to update the position of the dynamic point pt using the second argument of Dynamic.



            DynamicModule[
            {pt = {0, 1.}},
            Column[{
            "Degrees:", Dynamic[(ArcTan @@ pt)/Degree],
            LocatorPane[
            Dynamic[pt],
            Graphics[{
            Circle[],
            PointSize[Large],
            Dynamic[Arrow[{{0, 0}, pt/Norm[pt]}]]
            }],
            Appearance -> None
            ],
            InputField[
            Dynamic[(ArcTan @@ pt)/Degree, (pt = N@{Cos[#1 Degree], Sin[#1 Degree]}) &],
            FieldSize -> Tiny
            ]
            }, Alignment -> Center
            ]
            ]


            This keeps both fields in sync with each other:



            animation shows the locator and input field working together






            share|improve this answer









            $endgroup$


















              3












              $begingroup$

              Consider the following refactoring of your code



              First, the locator pane is used to set a point location constrained on a circle with unit radius (this part borrowed heavily from an example in the documentation for LocatorPane). A degree value is then calculated from the coordinates of tha tpoint.



              Secondly, the input field is used to read in a degree value, which is then used to update the position of the dynamic point pt using the second argument of Dynamic.



              DynamicModule[
              {pt = {0, 1.}},
              Column[{
              "Degrees:", Dynamic[(ArcTan @@ pt)/Degree],
              LocatorPane[
              Dynamic[pt],
              Graphics[{
              Circle[],
              PointSize[Large],
              Dynamic[Arrow[{{0, 0}, pt/Norm[pt]}]]
              }],
              Appearance -> None
              ],
              InputField[
              Dynamic[(ArcTan @@ pt)/Degree, (pt = N@{Cos[#1 Degree], Sin[#1 Degree]}) &],
              FieldSize -> Tiny
              ]
              }, Alignment -> Center
              ]
              ]


              This keeps both fields in sync with each other:



              animation shows the locator and input field working together






              share|improve this answer









              $endgroup$
















                3












                3








                3





                $begingroup$

                Consider the following refactoring of your code



                First, the locator pane is used to set a point location constrained on a circle with unit radius (this part borrowed heavily from an example in the documentation for LocatorPane). A degree value is then calculated from the coordinates of tha tpoint.



                Secondly, the input field is used to read in a degree value, which is then used to update the position of the dynamic point pt using the second argument of Dynamic.



                DynamicModule[
                {pt = {0, 1.}},
                Column[{
                "Degrees:", Dynamic[(ArcTan @@ pt)/Degree],
                LocatorPane[
                Dynamic[pt],
                Graphics[{
                Circle[],
                PointSize[Large],
                Dynamic[Arrow[{{0, 0}, pt/Norm[pt]}]]
                }],
                Appearance -> None
                ],
                InputField[
                Dynamic[(ArcTan @@ pt)/Degree, (pt = N@{Cos[#1 Degree], Sin[#1 Degree]}) &],
                FieldSize -> Tiny
                ]
                }, Alignment -> Center
                ]
                ]


                This keeps both fields in sync with each other:



                animation shows the locator and input field working together






                share|improve this answer









                $endgroup$



                Consider the following refactoring of your code



                First, the locator pane is used to set a point location constrained on a circle with unit radius (this part borrowed heavily from an example in the documentation for LocatorPane). A degree value is then calculated from the coordinates of tha tpoint.



                Secondly, the input field is used to read in a degree value, which is then used to update the position of the dynamic point pt using the second argument of Dynamic.



                DynamicModule[
                {pt = {0, 1.}},
                Column[{
                "Degrees:", Dynamic[(ArcTan @@ pt)/Degree],
                LocatorPane[
                Dynamic[pt],
                Graphics[{
                Circle[],
                PointSize[Large],
                Dynamic[Arrow[{{0, 0}, pt/Norm[pt]}]]
                }],
                Appearance -> None
                ],
                InputField[
                Dynamic[(ArcTan @@ pt)/Degree, (pt = N@{Cos[#1 Degree], Sin[#1 Degree]}) &],
                FieldSize -> Tiny
                ]
                }, Alignment -> Center
                ]
                ]


                This keeps both fields in sync with each other:



                animation shows the locator and input field working together







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 1 hour ago









                MarcoBMarcoB

                37.4k556113




                37.4k556113






























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