How to set an element with relative positioning in absolute dimensions in SVG?










0















Recently began to use SVG in my personal projects. I've learned that SVG is not (just) an image but also a document. I'm willing to know how to set an element with relative positioning in absolute dimensions in SVG?



For a better understanding in case I didn't make the question clear enough, I've drawn a diagram to make it easier to get the picture:



a diagram to make it easier to get the picture



As in this image, I have a square in 100x100 px dimension. When the user changes his/her reading device, I hope the pink square can keep the size and the positioning.



I've read about the article 'How to Scale SVG' by AMELIA BELLAMY-ROYDS on CSS Tricks, got the idea but didn't really find out the way doing it.



I've found <rect> tag in SVG file, but have no idea how to make the pink square can be maintained how big it is when the scale of parent container changes.



Any suggestion, or article, will be appreciated in advance.










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    0















    Recently began to use SVG in my personal projects. I've learned that SVG is not (just) an image but also a document. I'm willing to know how to set an element with relative positioning in absolute dimensions in SVG?



    For a better understanding in case I didn't make the question clear enough, I've drawn a diagram to make it easier to get the picture:



    a diagram to make it easier to get the picture



    As in this image, I have a square in 100x100 px dimension. When the user changes his/her reading device, I hope the pink square can keep the size and the positioning.



    I've read about the article 'How to Scale SVG' by AMELIA BELLAMY-ROYDS on CSS Tricks, got the idea but didn't really find out the way doing it.



    I've found <rect> tag in SVG file, but have no idea how to make the pink square can be maintained how big it is when the scale of parent container changes.



    Any suggestion, or article, will be appreciated in advance.










    share|improve this question


























      0












      0








      0








      Recently began to use SVG in my personal projects. I've learned that SVG is not (just) an image but also a document. I'm willing to know how to set an element with relative positioning in absolute dimensions in SVG?



      For a better understanding in case I didn't make the question clear enough, I've drawn a diagram to make it easier to get the picture:



      a diagram to make it easier to get the picture



      As in this image, I have a square in 100x100 px dimension. When the user changes his/her reading device, I hope the pink square can keep the size and the positioning.



      I've read about the article 'How to Scale SVG' by AMELIA BELLAMY-ROYDS on CSS Tricks, got the idea but didn't really find out the way doing it.



      I've found <rect> tag in SVG file, but have no idea how to make the pink square can be maintained how big it is when the scale of parent container changes.



      Any suggestion, or article, will be appreciated in advance.










      share|improve this question
















      Recently began to use SVG in my personal projects. I've learned that SVG is not (just) an image but also a document. I'm willing to know how to set an element with relative positioning in absolute dimensions in SVG?



      For a better understanding in case I didn't make the question clear enough, I've drawn a diagram to make it easier to get the picture:



      a diagram to make it easier to get the picture



      As in this image, I have a square in 100x100 px dimension. When the user changes his/her reading device, I hope the pink square can keep the size and the positioning.



      I've read about the article 'How to Scale SVG' by AMELIA BELLAMY-ROYDS on CSS Tricks, got the idea but didn't really find out the way doing it.



      I've found <rect> tag in SVG file, but have no idea how to make the pink square can be maintained how big it is when the scale of parent container changes.



      Any suggestion, or article, will be appreciated in advance.







      css svg






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 11 '18 at 9:40









      enxaneta

      7,0842516




      7,0842516










      asked Nov 11 '18 at 5:57









      HeNRy Hu HeNRy Hu

      11




      11






















          1 Answer
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          0














          The easiest solution would be not resizing the SVG. You give your SVG a width and a height in pixels (or whatever) and you make your SVG not responsive.



          If this doesn't work for you, if you need to resize the whole svg element but not the pink rectangle, next comes an example where I resize the SVG canvas but the <rect> is apparently not resized.






          function init()
          let p =
          x : 1000 * .05,// 5% of the svg width
          y : 500 * .05 // 5% of the svg height


          p = getCoords(p);

          let size =
          x:100,
          y:100

          size = getCoords(size);

          // resize the rect
          theRect.setAttributeNS(null,"x",p.x);
          theRect.setAttributeNS(null,"y",p.y);
          theRect.setAttributeNS(null,"width",size.x);
          theRect.setAttributeNS(null,"height",size.y);



          function getCoords(o)
          var p = svg.createSVGPoint();
          p.x= o.x;
          p.y= o.y;
          p = p.matrixTransform(svg.getScreenCTM().inverse());
          return p


          setTimeout(function()
          init();
          addEventListener('resize', init, false);
          , 15);

          svgborder:1px solid

          <svg id="svg" viewBox="0 0 1000 500">

          <circle fill="gold" cx="500" cy="250" r="200" />
          <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

          </svg>








          share|improve this answer






















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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            The easiest solution would be not resizing the SVG. You give your SVG a width and a height in pixels (or whatever) and you make your SVG not responsive.



            If this doesn't work for you, if you need to resize the whole svg element but not the pink rectangle, next comes an example where I resize the SVG canvas but the <rect> is apparently not resized.






            function init()
            let p =
            x : 1000 * .05,// 5% of the svg width
            y : 500 * .05 // 5% of the svg height


            p = getCoords(p);

            let size =
            x:100,
            y:100

            size = getCoords(size);

            // resize the rect
            theRect.setAttributeNS(null,"x",p.x);
            theRect.setAttributeNS(null,"y",p.y);
            theRect.setAttributeNS(null,"width",size.x);
            theRect.setAttributeNS(null,"height",size.y);



            function getCoords(o)
            var p = svg.createSVGPoint();
            p.x= o.x;
            p.y= o.y;
            p = p.matrixTransform(svg.getScreenCTM().inverse());
            return p


            setTimeout(function()
            init();
            addEventListener('resize', init, false);
            , 15);

            svgborder:1px solid

            <svg id="svg" viewBox="0 0 1000 500">

            <circle fill="gold" cx="500" cy="250" r="200" />
            <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

            </svg>








            share|improve this answer



























              0














              The easiest solution would be not resizing the SVG. You give your SVG a width and a height in pixels (or whatever) and you make your SVG not responsive.



              If this doesn't work for you, if you need to resize the whole svg element but not the pink rectangle, next comes an example where I resize the SVG canvas but the <rect> is apparently not resized.






              function init()
              let p =
              x : 1000 * .05,// 5% of the svg width
              y : 500 * .05 // 5% of the svg height


              p = getCoords(p);

              let size =
              x:100,
              y:100

              size = getCoords(size);

              // resize the rect
              theRect.setAttributeNS(null,"x",p.x);
              theRect.setAttributeNS(null,"y",p.y);
              theRect.setAttributeNS(null,"width",size.x);
              theRect.setAttributeNS(null,"height",size.y);



              function getCoords(o)
              var p = svg.createSVGPoint();
              p.x= o.x;
              p.y= o.y;
              p = p.matrixTransform(svg.getScreenCTM().inverse());
              return p


              setTimeout(function()
              init();
              addEventListener('resize', init, false);
              , 15);

              svgborder:1px solid

              <svg id="svg" viewBox="0 0 1000 500">

              <circle fill="gold" cx="500" cy="250" r="200" />
              <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

              </svg>








              share|improve this answer

























                0












                0








                0







                The easiest solution would be not resizing the SVG. You give your SVG a width and a height in pixels (or whatever) and you make your SVG not responsive.



                If this doesn't work for you, if you need to resize the whole svg element but not the pink rectangle, next comes an example where I resize the SVG canvas but the <rect> is apparently not resized.






                function init()
                let p =
                x : 1000 * .05,// 5% of the svg width
                y : 500 * .05 // 5% of the svg height


                p = getCoords(p);

                let size =
                x:100,
                y:100

                size = getCoords(size);

                // resize the rect
                theRect.setAttributeNS(null,"x",p.x);
                theRect.setAttributeNS(null,"y",p.y);
                theRect.setAttributeNS(null,"width",size.x);
                theRect.setAttributeNS(null,"height",size.y);



                function getCoords(o)
                var p = svg.createSVGPoint();
                p.x= o.x;
                p.y= o.y;
                p = p.matrixTransform(svg.getScreenCTM().inverse());
                return p


                setTimeout(function()
                init();
                addEventListener('resize', init, false);
                , 15);

                svgborder:1px solid

                <svg id="svg" viewBox="0 0 1000 500">

                <circle fill="gold" cx="500" cy="250" r="200" />
                <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

                </svg>








                share|improve this answer













                The easiest solution would be not resizing the SVG. You give your SVG a width and a height in pixels (or whatever) and you make your SVG not responsive.



                If this doesn't work for you, if you need to resize the whole svg element but not the pink rectangle, next comes an example where I resize the SVG canvas but the <rect> is apparently not resized.






                function init()
                let p =
                x : 1000 * .05,// 5% of the svg width
                y : 500 * .05 // 5% of the svg height


                p = getCoords(p);

                let size =
                x:100,
                y:100

                size = getCoords(size);

                // resize the rect
                theRect.setAttributeNS(null,"x",p.x);
                theRect.setAttributeNS(null,"y",p.y);
                theRect.setAttributeNS(null,"width",size.x);
                theRect.setAttributeNS(null,"height",size.y);



                function getCoords(o)
                var p = svg.createSVGPoint();
                p.x= o.x;
                p.y= o.y;
                p = p.matrixTransform(svg.getScreenCTM().inverse());
                return p


                setTimeout(function()
                init();
                addEventListener('resize', init, false);
                , 15);

                svgborder:1px solid

                <svg id="svg" viewBox="0 0 1000 500">

                <circle fill="gold" cx="500" cy="250" r="200" />
                <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

                </svg>








                function init()
                let p =
                x : 1000 * .05,// 5% of the svg width
                y : 500 * .05 // 5% of the svg height


                p = getCoords(p);

                let size =
                x:100,
                y:100

                size = getCoords(size);

                // resize the rect
                theRect.setAttributeNS(null,"x",p.x);
                theRect.setAttributeNS(null,"y",p.y);
                theRect.setAttributeNS(null,"width",size.x);
                theRect.setAttributeNS(null,"height",size.y);



                function getCoords(o)
                var p = svg.createSVGPoint();
                p.x= o.x;
                p.y= o.y;
                p = p.matrixTransform(svg.getScreenCTM().inverse());
                return p


                setTimeout(function()
                init();
                addEventListener('resize', init, false);
                , 15);

                svgborder:1px solid

                <svg id="svg" viewBox="0 0 1000 500">

                <circle fill="gold" cx="500" cy="250" r="200" />
                <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

                </svg>





                function init()
                let p =
                x : 1000 * .05,// 5% of the svg width
                y : 500 * .05 // 5% of the svg height


                p = getCoords(p);

                let size =
                x:100,
                y:100

                size = getCoords(size);

                // resize the rect
                theRect.setAttributeNS(null,"x",p.x);
                theRect.setAttributeNS(null,"y",p.y);
                theRect.setAttributeNS(null,"width",size.x);
                theRect.setAttributeNS(null,"height",size.y);



                function getCoords(o)
                var p = svg.createSVGPoint();
                p.x= o.x;
                p.y= o.y;
                p = p.matrixTransform(svg.getScreenCTM().inverse());
                return p


                setTimeout(function()
                init();
                addEventListener('resize', init, false);
                , 15);

                svgborder:1px solid

                <svg id="svg" viewBox="0 0 1000 500">

                <circle fill="gold" cx="500" cy="250" r="200" />
                <rect id="theRect" fill="hotpink" x="5%" y="5%" width="100px" height="100px" />

                </svg>






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 11 '18 at 11:52









                enxanetaenxaneta

                7,0842516




                7,0842516



























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