Programmatically rotate shapes using coordinates

See also questions close to this topic

• javascript - cant get the input to replace value properly

  I have a problem with this code. When i click on a certain checkbox, i want for the inpreco[0] to change to $("#op"+altpreco3[0]).val() on the input #preco but it doesnt, and i dont know why. Also when #preco is empty, it doesnt get the "1 AND 5000" value. Can anyone help me with this? This is the code:

  php file:

  <input id="preco" type="text" name="preco" value='1 AND 5000'>
      <div id="op1l">
          <input type="checkbox" id="op1" class="opcaopreco" value="201 AND 400" data-indice="1" data-inicial="">
          <span>€201 - €400</span>
      </div>
      <div id="op2l"> 
          <input type="checkbox" id="op2" class="opcaopreco" value='401 AND 600' data-indice="2" data-inicial="">
          <span>€401 - €600</span>
      </div>
      <div id="op3l">
          <input type="checkbox" id="op3" class="opcaopreco" value='601 AND 800' data-indice="3" data-inicial="">
          <span>€601 - €800</span>
      </div>  
      <div id="op4l">
          <input type="checkbox" id="op4" class="opcaopreco" value='801 AND 1000' data-indice="4" data-inicial="">
          <span>€801 - €1000</span>
      </div>
      <div id="op5l">
          <input type="checkbox" id="op5" class="opcaopreco" value='1001 AND 1500' data-indice="5" data-inicial="">
          <span>€1001 - €1500</span>
      </div>
  

  js file:

  $(function() {
  
  var inpreco = ["", "", "", "", "", ""];
  var altpreco = [];
  
  $(".opcaopreco").click(function() {
  
  var valor = $(this).val();
  var indice = $(this).data("indice");
  var inicial = $(this).data("inicial");
  altpreco2 = altpreco.filter(function(op) {
    return op !== (undefined || "");
  });
  altpreco3 = altpreco2.sort();
  
  if ((altpreco3[0]==undefined)){
    $(this).data("inicial", "primario");
    inpreco[0]=(valor);
    altpreco[indice]=(indice);
    $("#preco").val(inpreco[0]+inpreco[1]+inpreco[2]+inpreco[3]+inpreco[4]+inpreco[5]);
  }else
  if (inicial=="") {
    $(this).data("inicial", "sim");
    inpreco[indice]=(" OR preco BETWEEN "+valor);
    altpreco[indice]=(indice);
    $("#preco").val(inpreco[0]+inpreco[1]+inpreco[2]+inpreco[3]+inpreco[4]+inpreco[5]);
  }else
  if ( (inicial=="sim") && (altpreco3[0] !==(undefined||""))  ) {
    $(this).data("inicial", "");
    inpreco[indice]="";
    altpreco[indice]="";
    $("#preco").val(inpreco[0]+inpreco[1]+inpreco[2]+inpreco[3]+inpreco[4]+inpreco[5]);
  }else
  if ((inicial=="primario") && (altpreco3[0] !==(undefined||""))) {
    $(this).data("inicial", "");
    inpreco[indice]="";
    altpreco[indice]="";
    inpreco[0]= $("#op" + altpreco3[0]).val();
    $("#op" + altpreco3[0]).data("inicial", "primario");
    $("#preco").val(inpreco[0]+inpreco[1]+inpreco[2]+inpreco[3]+inpreco[4]+inpreco[5]);
  }else
  if ((altpreco3.length==1) && (inicial !==(undefined||"") )  ){
    $(this).data("inicial", undefined);
    inpreco[indice]="";
    altpreco[indice]=(indice);
    $("#preco").val("1 AND 5000");
  }
  });
  });
  
• how to make tooltip using displaytag

  So our project is using displaytag on the frontend to display our tables and such.

  <display:table id="xxx"
                 style="width:100%; border-bottom: 0; border-right: 0; border-left: 0;"
                 name="REF_RESULTS"
                 defaultsort="2"
                 defaultorder="ascending"
                 requestURI="flow.action?_flowExecutionKey=${flowExecutionKey}"
                 excludedParams="*" export="true" sort="list">
  ....
  <span class="tooltip"><display:column property="status" title="Status" style="width:7%"
              sortable="true" sortProperty="status" sortName="status" media="html csv excel xml pdf"><span class="tooltiptext">This is my tooltip text to be displayed when hovering over column<span>
  

  Regardless of how I wrap the display:column with the tooltip and tooltiptext classes (whether its a label tag, span tag, etc) the elements and my text are not displayed in the resulting HTML. I am thus not able to manipulate the element at all using CSS or javascript, etc to make it display as a tooltip. My table and columns show up fine in the resulting HTML but just not the tooltip class elements

  My CSS below shows up just fine on the resulting page. But the tooltip class tags and elements are not showing up at all... How can I fix this so that I can get tooltips to show up for the columns and such?

  <style>
  .tooltip{
  position: relative;
  display: inline-block;
  }
  
  .tooltiptext{
  /*visibility: hidden; */
  width: 120px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px 0;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 1s;
  }
  
  .tooltip .tooltiptext::after {
  /*content: "";*/
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #555 transparent transparent transparent;
  }
  
  .tooltip:hover .tooltiptext {
      visibility: visible;
      opacity: 1;
  }
  
• vue-router: missing param for named route "check": Expected "from" to match "[^\/]+?", but received ""

  Home.vue:

      <form class="book-room" action="#">
        <div class="col-md-3">
        <div class="form-left-search-book">
          <p>Room Type</p>
          <select v-model="roomtype" class="form-control">
            <option class="form-control size-font" v-for="room in items">{{ room.title }}</option>
          </select>
        </div>
      </div>
        <div class="col-md-3">
        <div class="form-date-book-search date-space-left">
          <p>Arrival Date</p>
          <input class="form-control" id="arrive" v-model="from" type="text">
        </div>
      </div>
      <div class="col-md-3">
        <div class="form-date-book-search date-space-right">
          <p>Departure Date</p>
          <input class="form-control" id="depart" v-model="to" type="text">
        </div>
      </div>
      <div class="col-md-2 text-left">
        <div class="form-left-search-submit">
          <router-link :to="{ name: 'check', params: { roomtype: this.roomtype, from: this.from, to: this.to }}" ><button class="btn btn-info" type="submit">Check</button></router-link>
        </div>
      </div>
      </form>
  

  Route.js:

  { path: '/check/:roomtype/:from/:to', name: 'check', component: FrontEndCheck },
  

  Jquery:

  $(document).ready(function () {
        var date = new Date();
        var currentMonth = date.getMonth();
        var currentDate = date.getDate();
        var currentYear = date.getFullYear();
  
        $('#arrive').datepicker({
            minDate: new Date(currentYear, currentMonth, currentDate),
            dateFormat: 'dd/mm/yy'
        });
        $('#depart').datepicker({
            minDate: new Date(currentYear, currentMonth, currentDate),
            dateFormat: 'dd/mm/yy'
        });
    });
  

  Here i am having a form filling up room type, arrival , departure date and there is a check named button in which if i click over it, then it will redirect to the next page by taking up the room type, arrival , departure date that have been selected..

  When i use type="date" <input class="form-control" id="arrive" v-model="from" type="date"> and selecting from bootstrap datepicker, everything works fine and no issue with that but i cant use that datepicker because there the disabling of past date was not available, so here i need to implement a jquery for it, in which i changed the type="text" and gave it like <input class="form-control" id="arrive" v-model="from" type="text"> and function i have mentioned in jquery code, it is showing the error,

  [vue-router] missing param for named route "check": Expected "from" to match "[^\/]+?", but received ""
  

  I searched a lot but unable to find a solution for it, kindly make a help for me to fix this issue.
• html2canvas border image issue

  I am using html2canvas library to take screenshot of html view.

  but background-image failed to load. i am getting error message Error loading background:

  here is my JSFiddle.

  window.takeScreenShot = function() {
      html2canvas(document.getElementById("target"), {
          onrendered: function (canvas) {
              document.body.appendChild(canvas);
          },
          useCORS:true,
          logging:true,
          allowTaint:true
      });
  }

  #target{
      width:300px;
      height:160px;
      background:lightblue;
      color:#fff;
      padding:10px;
      background-image: url(https://static.pexels.com/photos/20974/pexels-photo.jpg);
      background-repeat:no-repeat;
      background-position:center center;
      -o-background-size: 100%;
      -moz-background-size: 100%;
      -webkit-background-size: 100%;
      background-size: 100%;
     height: 100%;
  }
  
  #borderimg1 { 
      border: 10px solid transparent;
      padding: 15px;
      -webkit-border-image: url(https://www.w3schools.com/cssref/border.png) 30 round; /* Safari 3.1-5 */
      -o-border-image: url(https://www.w3schools.com/cssref/border.png) 30 round; /* Opera 11-12.1 */
      border-image: url(https://www.w3schools.com/cssref/border.png) 30 round;
  }
  
  #borderimg2 { 
      border: 10px solid transparent;
      padding: 15px;
      -webkit-border-image: url(https://www.w3schools.com/cssref/border.png) 30 stretch; /* Safari 3.1-5 */
      -o-border-image: url(https://www.w3schools.com/cssref/border.png) 30 stretch; /* Opera 11-12.1 */
      border-image: url(https://www.w3schools.com/cssref/border.png) 30 stretch;
  }

  <script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.min.js"></script>
      <button onclick="takeScreenShot()">to image</button>
  <div id="target">
      
  <p>The border-image property specifies an image to be used as the border around an element:</p>
  <p id="borderimg1">Here, the middle sections of the image are repeated to create the border.</p>
  <p id="borderimg2">Here, the middle sections of the image are stretched to create the border.</p>
  
  <p>Here is the original image:</p><img src="https://www.w3schools.com/cssref/border.png">
  <p><strong>Note:</strong> Internet Explorer 10, and earlier versions, do not support the border-image property.</p>
  
  </div>

  image for error message
• Fabric.js text color not changing

  Hello i have a fabric js app which designs business card Front and Back on same page there is only one canvas in page and two buttons for for selecting Front or back side of card. when user works on front side then all canvas data saved in variable in json format whenever user edit something in canvas same for fack side..and when user switch card side it loads json data from front or back variable which holds the json data everything is working fine but not text color for eg. when user changes text color in front side of card and then load back side in canvas and then again when user loads front side of card in canvas text color is set black not what user changed last time.

  app preview
• Setting image size percentage in canvas and jquery

  I'm trying to create a one-pager at the moment with a canvas where you can click to add/place images at random. I've gotten most of what I want to work, but being extremely new to jquery and canvas, I still can't figure out how to set a max-size for my images. As far as I've understood, it can be quite hard to make images on a canvas work perfectly when you haven't set the canvas size manually in css, but I have a resizing canvas, so I'm not really sure how I get around that.

  I want the images that I place to have a max-height/max-width of 80% of the viewport. I tried setting a max size in css, but it didn't do anything.

  Here's a jsfiddle

    $(document).ready(function () {
    	var images = [];
      $("#siteload").fadeIn(1500);
    	$('.put').each(function() {
      	images.push($(this).attr('src'));
      });
      (function() {
      var
          htmlCanvas = document.getElementById('c'),
          context = htmlCanvas.getContext('2d');
          initialize();
          img = new Image();
          count = 0;
          htmlCanvas.onclick= function(evt) {
          img.src = images[count];
            var x = evt.offsetX - img.width/2,
                y = evt.offsetY - img.height/2;
            context.drawImage(img, x, y);
            count++;
            if (count == images.length) {
            count = 0;
            }
          }
        function initialize() {
          window.addEventListener('resize', resizeCanvas, false);
          resizeCanvas();
        }
        function resizeCanvas() {
          htmlCanvas.width = window.innerWidth;
          htmlCanvas.height = window.innerHeight;
        }
      })();
    });
    $(".hvr_cnt").mouseenter(function () {
        title = $("<div class='hvr_ttl'>" + $(this).children()[0].title + "</div>");
        $(this).children()[0].title = "";
        $(this).append(title);
    });
    $(document).mousemove(function(e){
       $('.hvr_ttl').css({
         top: e.pageY - $(".hvr_ttl").height()/2,
         left:  e.pageX - $(".hvr_ttl").width()/2
       });
     });
    $(".hvr_cnt").mouseleave(function (e) {
       $(this).children()[0].title = $($(this).children()[1]).html();
       $(this).children()[1].remove();
    });

  body {
    margin: 0;
    padding: 0;
    background: rgb(240, 240, 240);
    width: 100%;
    height: 100%;
    border: 0;
    color: rgb(40, 40, 40);
    overflow: hidden;
    display: block;
  }
  
  .slides {
    display: none
  }
  
  #c {
    display: block;
    position: absolute;
    left: 0px;
    top: 0px;
  }
  
  .hvr_ttl {
    display: block;
    position: absolute;
    pointer-events: none;
    cursor: none;
  }
  
  .hvr_cnt {
    cursor: none;
    padding: none;
    margin: none;
  }

  <body ontouchstart="">
    <div class="hvr_cnt">
      <canvas id="c" title="click"></canvas>
    </div>
    <ul class="slides">
      <li><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Smiley.svg/2000px-Smiley.svg.png" class="put" /></li>
      <li><img src="https://emojipedia-us.s3.amazonaws.com/thumbs/160/google/56/thumbs-up-sign_1f44d.png" class="put" /></li>
    </ul>
  </body>

  Any help would be appreciated :)
• Unity Camera Quaternion.RotateTowards without rolling/banking

  I have a camera facing the ground and I want to pan up to look at a target object in the distance.

  Currently, I achieve this with the following:

  Vector3 dir = targetPoint - transform.position;
  Quaternion lookRotation = Quaternion.LookRotation(dir);
  Quaternion newRotation = Quaternion.RotateTowards(transform.rotation, lookRotation, rotationDamping * Time.deltaTime);
  transform.rotation = newRotation;
  

  The camera performs the rotation and ends up pointing at the target object correctly, but as the camera pans up it tilts to one side making my game world set at an angle to the viewer, which is pretty disorienting:

  

  How can I constrain the camera angle some way so that the horizon is always flat to the camera?

  Thanks!

  Update

  Adding the line suggested by @Isaac below produces the correct rotation in relation to the horizon, but it snaps abruptly to z=0 at the start which is still not what I'm looking for.

  transform.localEulerAngles = new Vector3 (transform.localEulerAngles.x, transform.localEulerAngles.y, 0);
  

  
• Swift way of rotating 2d array?

  I need to make a grid (should be a 2d array). This grid could be of any length/width. Then I need to mark my position in this grid. Finally, I need to be able to rotate this grid by 90 degrees.

  Example: The grid is 13 rows by 7 columns. My position is 3,5 (column 3, row 5) I rotate the grid 90 degrees. Now my position is 5,5

  Questions:

  • Do I need to rotate every tile in the grid, when I just have one position to keep track of? Or is there a way to rotate this one position directly?

  • Is there any build-in functionality in the iOS SDK that will help me with this?

  • If not, is there a Cocoapod that could help with this? Or will I have to write the rotation logic myself? How?
• blender axis rotation in its center point

  I exported this 3D rotating cube, but I can't make to rotate only on the 3 axis, I mean the cube rotates in all axis but not in the center of the screen goes to the edge and sometimes out of the view, I need to be fixed in the middle of the screen and rotates on the 3 axis center point. Any help is more than welcome.
• Drop method not working (VBA,Visio)

  I need to drop a shape that i get from a masters. It was working really wwell, but wheni changed some names in my library it is not working anymore this is what i did:

      ...
      Case "4", "5", "10", "1006", "1007", "1001"
      Set Filage =Application.ActiveDocument.Pages.Item(la_page).Drop(Application.Documents.Item("Controleur-e++.vssx").Masters.ItemU("filage#" & CInt(final(5, 0, i))), x0, y0_i)
  

  ... where la_page is a string that represents the page name

  final(5,0,i) is a string for example "1001" xo and y0_i are two numbers that set the position where i wanna drop the shape

  N.B: my shape name is filage#1001

  Thanks for your answers
• How to plot mode shapes of curved beam in MATLAB?

  I am writing MATLAB code for frequencies and mode shapes of curved beam. Problem for me is to plot mode shape of curved beam in Cartesian coordinate system.

  As you can see from the first picture, Xu and Xv are beam displacements from centroidal axis, fi is the central angle and R is radius of the curve. Xu and Xv changes for any FI and they are complex numbers (I think that I just need a real part). I already have R and fi and they are constant. The second picture shows what I should get.

  In the attachment is part of the code that makes problem.

  Does anyone know how to solve this? Thank you for any help.

  x0=[];
  y0=[];
  
  x1=[];
  y1=[];
  
  
  for FI = linspace(fi,0);
  
  Xu=T1*B1*e^(1i*k1*FI)+T2*B2*e^(1i*k2*FI)+T3*B3*e^(1i*k3*FI)+T4*B4*e^(1i*k4*FI)+T5*B5*e^(1i*k5*FI)+T6*B6*e^(1i*k6*FI);    
  Xv=B1*e^(1i*k1*FI)+B2*e^(1i*k2*FI)+B3*e^(1i*k3*FI)+B4*e^(1i*k4*FI)+B5*e^(1i*k5*FI)+B6*e^(1i*k6*FI);
  
  X0=R*sin(FI);
  Y0=R*cos(FI);
  
  x0=[x0,X0];
  y0=[y0,Y0];
  
  Xm=Xu*cos(FI)+Xv*sin(FI);
  Ym=Xv*cos(FI)-Xu*sin(FI);
  
  x1=[x1,X0+Xm];
  y1=[y1,Y0+Ym];
  
  end
  
  plot(x0,y0)
  hold on
  plot(x1,y1)
  

  Xu and Xv displacements

  mode shapes of curved beam
• Swift calling delegate method

  I am fetching JSON menu and once the JSON returned, I would like to run menuReady() to update content of the table within SomeTableViewController class. But the following code doesn't seems to work.

  AIM: Run menuReady() to update content once JSON returned.

  PROBLEM: menuReady() is never fired.

  SomeTableViewController.swift

  class SomeTableViewController: UITableViewController, MenuModelDelegate {
      override func viewDidLoad() {
          menuModel.delegate = self
      }
      func menuReady() {
          // This is NOT fired.
          print("SomeViewController.menuReady()")
      }
  }
  

  MenuModel.swift

  protocol MenuModelDelegate : class {
      func menuReady()
  }
  
  class MenuModel: NSObject {
      var delegate:MenuModelDelegate?
      func getMenu(data: JSON) {
          // This is fired.
          print("MenuModel.getMenu()")
          delegate?.menuReady()
      }
  }
  

  Call from AnotherViewController when button tapped

  AnotherViewController.swift

  class AnotherViewController : UIViewController {
      func buttonTapped(sender: UIButton!) {
          // This function is fired.
          // jsonData is some json data returned from http request
          let menuModel = MenuModel()
          menuModel.getMenu(data: jsonData)
      }
  }
  
• Android Set textcursordrawable programatically without reflection method

  I want to change the color of EditText Color and width programmatically for all Edit Text used in the project based on the app theme selected.
  So I can't do this using XML and need a programatic solution.

  So I want to create a custom function to set this

  void setEditTextColorDrawable(int ClrVar)
  {
      // Code Todo 
  }
  

  I tried all the methods suggested in
  set textCursorDrawable programmatically

  The issue is, getDeclaredField("mCursorDrawableRes") is not available above API22.
  So how do I do this for all API even above 22

  try {
      // https://github.com/android/platform_frameworks_base/blob/kitkat-release/core/java/android/widget/TextView.java#L562-564
      Field f = TextView.class.getDeclaredField("mCursorDrawableRes");
      f.setAccessible(true);
      f.set(yourEditText, R.drawable.cursor);
  } catch (Exception ignored)
  {
      log.d("TAG", "This is depricated")
  }
  

  Output : "This is depricated"
• how to programmatically set or reset checkbox

  Purpose: when a particular checkbox is checked or unchecked, the program must change a number of other checkboxes according to programmed rules.

  <input type="checkbox" id="chkbox" (change)="onChangeChk($event)">Test Checkbox
  
    onChangeChk($event) {
      $event.srcElement.value = "on"; // or "off"
    }
  

  The checkbox remains in its original state no matter how the onChangeChk sets it.

  Thanks for you help on this. :-)