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    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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    <p>Hi Nicolas,<br>
    </p>
    <p>Yes - but that doesn't magically turn a "non geometry" table into
      a "geometry table" - as far as I know. So you probably need to
      create a "Virtual Layer" and create the geometry similar to what
      you propose.<br>
    </p>
    <p>Andreas<br>
    </p>
    <div class="moz-cite-prefix">Am 13.11.20 um 15:22 schrieb Nicolas
      Cadieux:<br>
    </div>
    <blockquote type="cite"
      cite="mid:E3F9A1DC-1A61-4A25-82DC-BA85EE92CCF8@gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      Hi,
      <div>You can create a geometry from WKT if you have x and y fields
        using and expression in the field calculator.</div>
      <div>
        <pre style="color: var(--highlight-color); -webkit-text-size-adjust: auto; margin-top: 0px; margin-bottom: 0px; padding: 12px; border: 0px; font-family: Consolas, Menlo, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace, sans-serif; font-stretch: inherit; line-height: 1.30769231; font-size: 13px; vertical-align: baseline; box-sizing: inherit; width: auto; max-height: 600px; overflow: auto; border-top-left-radius: 5px; border-top-right-radius: 5px; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; word-wrap: normal;"><code style="margin: 0px; padding: 0px; border: 0px; font-family: Consolas, Menlo, Monaco, "Lucida Console", "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", "Courier New", monospace, sans-serif; font-style: inherit; font-variant-caps: inherit; font-stretch: inherit; line-height: inherit; vertical-align: baseline; box-sizing: inherit; white-space: inherit; color: var(--black-800); border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px;">geom_from_wkt('POINT('||"x"||' '||"y"||')')</code></pre>
        <div><br>
        </div>
        <div><a
href="https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry"
            moz-do-not-send="true">https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry</a></div>
        <div><br>
        </div>
        <div dir="ltr">Nicolas Cadieux</div>
        <div dir="ltr"><br>
          <blockquote type="cite">Le 13 nov. 2020 à 09:07, Andreas
            Neumann <a class="moz-txt-link-rfc2396E" href="mailto:a.neumann@carto.net"><a.neumann@carto.net></a> a écrit :<br>
            <br>
          </blockquote>
        </div>
        <blockquote type="cite">
          <div dir="ltr">
            <meta http-equiv="Content-Type" content="text/html;
              charset=UTF-8">
            <p>Hi</p>
            <p>Neither GeometryGenerators nor Vector Field Markers work
              on tables without geometry, unfortunately. You didn't
              inform us, that you don't have geometry in your table.<br>
            </p>
            <p>You can, however, create a "Virtual Layer" and write some
              SQL to create a geometry from your attributes: menu
              "Layer" --> "Create Layer" --> "New Virtual Layer" -
              where you can use your existing tables and create a new
              geometry column with SQL. See
              <a class="moz-txt-link-freetext"
href="https://docs.qgis.org/testing/en/docs/user_manual/managing_data_source/create_layers.html#creating-virtual-layers"
                moz-do-not-send="true">https://docs.qgis.org/testing/en/docs/user_manual/managing_data_source/create_layers.html#creating-virtual-layers</a></p>
            <p>Or, if your table is a CSV file, then you can assign
              attribute columns to a point geometry and then just hide
              the point rendering if you don't need it.<br>
            </p>
            <p>This is an unfortunate limitation of QGIS, that there is
              no "easy" way to add a geometry column to table that
              doesn't have geometry (or if it is possible, then I don't
              know it).</p>
            <p>Hope this helps you,</p>
            <p>Andreas<br>
            </p>
            <div class="moz-cite-prefix">Am 13.11.20 um 14:52 schrieb
              L.W.:<br>
            </div>
            <blockquote type="cite"
              cite="mid:7f9befd5-d44c-8aec-7036-71461c7964e2@gmx.de">
              <meta http-equiv="Content-Type" content="text/html;
                charset=UTF-8">
              <p>Does it works on Layers with no geometry?</p>
              <p>My layers do not have a geometry.</p>
              <p><br>
              </p>
              <div class="moz-cite-prefix">Am 13.11.2020 um 11:56
                schrieb Andreas Neumann:<br>
              </div>
              <blockquote type="cite"
                cite="mid:80d2b9f3-0896-999d-a5ab-17ad4573d522@carto.net">
                <meta http-equiv="Content-Type" content="text/html;
                  charset=UTF-8">
                <p>Yes, you need point data to start from, but then
                  vectors can bei/are generated from the attributes you
                  mentioned.</p>
                <p>Andreas<br>
                </p>
                <div class="moz-cite-prefix">Am 13.11.20 um 11:47
                  schrieb L.W.:<br>
                </div>
                <blockquote type="cite"
                  cite="mid:cd1f5b7c-4703-530f-d5b7-b51caa5632d5@gmx.de">
                  <meta http-equiv="Content-Type" content="text/html;
                    charset=UTF-8">
                  <p>from the docs ...</p>
                  <p>****It can only be used to render point data****</p>
                  <h4 style="box-sizing: border-box; margin-top: 0px;
                    font-weight: 700; font-family: "Roboto
                    Slab", ff-tisa-web-pro, Georgia, Arial,
                    sans-serif; font-size: 18.4px; color: rgb(64, 64,
                    64); font-style: normal; font-variant-ligatures:
                    normal; font-variant-caps: normal; letter-spacing:
                    normal; orphans: 2; text-align: start; text-indent:
                    0px; text-transform: none; white-space: normal;
                    widows: 2; word-spacing: 0px;
                    -webkit-text-stroke-width: 0px; background-color:
                    rgb(252, 252, 252); text-decoration-style: initial;
                    text-decoration-color: initial;"><a
                      class="toc-backref"
href="https://docs.qgis.org/3.10/en/docs/user_manual/style_library/symbol_selector.html?#id15"
                      style="box-sizing: border-box; color: rgb(64, 64,
                      64); text-decoration: none; cursor: pointer;
                      outline-width: 0px !important; user-select: auto
                      !important;" moz-do-not-send="true"><span
                        class="section-number" style="box-sizing:
                        border-box;">12.2.2.2.6.<span> </span></span>The
                      Vector Field Marker</a></h4>
                  <p class="" style="box-sizing: border-box;
                    line-height: 24px; font-size: 16px; margin: 0px 0px
                    24px; color: rgb(64, 64, 64); font-family: Lato,
                    proxima-nova, "Helvetica Neue", Arial,
                    sans-serif; font-style: normal;
                    font-variant-ligatures: normal; font-variant-caps:
                    normal; font-weight: 400; letter-spacing: normal;
                    orphans: 2; text-align: start; text-indent: 0px;
                    text-transform: none; white-space: normal; widows:
                    2; word-spacing: 0px; -webkit-text-stroke-width:
                    0px; background-color: rgb(252, 252, 252);
                    text-decoration-style: initial;
                    text-decoration-color: initial;">The vector field
                    marker is used to display vector field data such as
                    earth deformation, tidal flows, and the like. It
                    displays the vectors as lines (preferably arrows)
                    that are scaled and oriented according to selected
                    attributes of data points. ****It can only be used
                    to render point data****; line and polygon layers
                    are not drawn by this symbology.</p>
                  <p style="box-sizing: border-box; line-height: 24px;
                    font-size: 16px; margin: 0px 0px 24px; color:
                    rgb(64, 64, 64); font-family: Lato, proxima-nova,
                    "Helvetica Neue", Arial, sans-serif;
                    font-style: normal; font-variant-ligatures: normal;
                    font-variant-caps: normal; font-weight: 400;
                    letter-spacing: normal; orphans: 2; text-align:
                    start; text-indent: 0px; text-transform: none;
                    white-space: normal; widows: 2; word-spacing: 0px;
                    -webkit-text-stroke-width: 0px; background-color:
                    rgb(252, 252, 252); text-decoration-style: initial;
                    text-decoration-color: initial;">The vector field is
                    defined by attributes in the data, which can
                    represent the field either by:</p>
                  <ul class="simple" style="box-sizing: border-box;
                    margin: 0px 0px 24px; padding: 0px; list-style:
                    disc; line-height: 24px; color: rgb(64, 64, 64);
                    font-family: Lato, proxima-nova, "Helvetica
                    Neue", Arial, sans-serif; font-size: 16px;
                    font-style: normal; font-variant-ligatures: normal;
                    font-variant-caps: normal; font-weight: 400;
                    letter-spacing: normal; orphans: 2; text-align:
                    start; text-indent: 0px; text-transform: none;
                    white-space: normal; widows: 2; word-spacing: 0px;
                    -webkit-text-stroke-width: 0px; background-color:
                    rgb(252, 252, 252); text-decoration-style: initial;
                    text-decoration-color: initial;">
                    <li style="box-sizing: border-box; list-style: disc;
                      margin-left: 24px;">
                      <p style="box-sizing: border-box; line-height:
                        24px; font-size: 16px; margin: 0px;"><strong
                          style="box-sizing: border-box; font-weight:
                          700;">cartesian</strong><span> </span>components
                        (<code class="docutils literal notranslate"
                          style="box-sizing: border-box; font-family:
                          SFMono-Regular, Menlo, Monaco, Consolas,
                          "Liberation Mono", "Courier
                          New", Courier, monospace; font-size:
                          12px; white-space: nowrap; max-width: 100%;
                          background: rgb(255, 255, 255); border: 1px
                          solid rgb(225, 228, 229); padding: 2px 5px;
                          color: rgb(231, 76, 60); overflow-x: auto;"><span
                            class="pre" style="box-sizing: border-box;">x</span></code><span> </span>and<span> </span><code
                          class="docutils literal notranslate"
                          style="box-sizing: border-box; font-family:
                          SFMono-Regular, Menlo, Monaco, Consolas,
                          "Liberation Mono", "Courier
                          New", Courier, monospace; font-size:
                          12px; white-space: nowrap; max-width: 100%;
                          background: rgb(255, 255, 255); border: 1px
                          solid rgb(225, 228, 229); padding: 2px 5px;
                          color: rgb(231, 76, 60); overflow-x: auto;"><span
                            class="pre" style="box-sizing: border-box;">y</span></code><span> </span>components
                        of the field)</p>
                    </li>
                    <li style="box-sizing: border-box; list-style: disc;
                      margin-left: 24px;">
                      <p style="box-sizing: border-box; line-height:
                        24px; font-size: 16px; margin: 0px;">or<span> </span><strong
                          style="box-sizing: border-box; font-weight:
                          700;">polar</strong><span> </span>coordinates:
                        in this case, attributes define<span> </span><code
                          class="docutils literal notranslate"
                          style="box-sizing: border-box; font-family:
                          SFMono-Regular, Menlo, Monaco, Consolas,
                          "Liberation Mono", "Courier
                          New", Courier, monospace; font-size:
                          12px; white-space: nowrap; max-width: 100%;
                          background: rgb(255, 255, 255); border: 1px
                          solid rgb(225, 228, 229); padding: 2px 5px;
                          color: rgb(231, 76, 60); overflow-x: auto;"><span
                            class="pre" style="box-sizing: border-box;">Length</span></code><span> </span>and<span> </span><code
                          class="docutils literal notranslate"
                          style="box-sizing: border-box; font-family:
                          SFMono-Regular, Menlo, Monaco, Consolas,
                          "Liberation Mono", "Courier
                          New", Courier, monospace; font-size:
                          12px; white-space: nowrap; max-width: 100%;
                          background: rgb(255, 255, 255); border: 1px
                          solid rgb(225, 228, 229); padding: 2px 5px;
                          color: rgb(231, 76, 60); overflow-x: auto;"><span
                            class="pre" style="box-sizing: border-box;">Angle</span></code>.
                        The angle may be measured either clockwise from
                        north, or Counterclockwise from east, and may be
                        either in degrees or radians.</p>
                    </li>
                    <li style="box-sizing: border-box; list-style: disc;
                      margin-left: 24px;">
                      <p style="box-sizing: border-box; line-height:
                        24px; font-size: 16px; margin: 0px;">or as<span> </span><strong
                          style="box-sizing: border-box; font-weight:
                          700;">height only</strong><span> </span>data,
                        which displays a vertical arrow scaled using an
                        attribute of the data. This is appropriate for
                        displaying the vertical component of
                        deformation, for example.</p>
                    </li>
                  </ul>
                  <p style="box-sizing: border-box; line-height: 24px;
                    font-size: 16px; margin: 0px 0px 24px; color:
                    rgb(64, 64, 64); font-family: Lato, proxima-nova,
                    "Helvetica Neue", Arial, sans-serif;
                    font-style: normal; font-variant-ligatures: normal;
                    font-variant-caps: normal; font-weight: 400;
                    letter-spacing: normal; orphans: 2; text-align:
                    start; text-indent: 0px; text-transform: none;
                    white-space: normal; widows: 2; word-spacing: 0px;
                    -webkit-text-stroke-width: 0px; background-color:
                    rgb(252, 252, 252); text-decoration-style: initial;
                    text-decoration-color: initial;">The magnitude of
                    field</p>
                  <p style="box-sizing: border-box; line-height: 24px;
                    font-size: 16px; margin: 0px 0px 24px; color:
                    rgb(64, 64, 64); font-family: Lato, proxima-nova,
                    "Helvetica Neue", Arial, sans-serif;
                    font-style: normal; font-variant-ligatures: normal;
                    font-variant-caps: normal; font-weight: 400;
                    letter-spacing: normal; orphans: 2; text-align:
                    start; text-indent: 0px; text-transform: none;
                    white-space: normal; widows: 2; word-spacing: 0px;
                    -webkit-text-stroke-width: 0px; background-color:
                    rgb(252, 252, 252); text-decoration-style: initial;
                    text-decoration-color: initial;"><br>
                  </p>
                  <div class="moz-cite-prefix">Am 13.11.2020 um 11:34
                    schrieb Andreas Neumann:<br>
                  </div>
                  <blockquote type="cite"
                    cite="mid:9d5955ce-6f3b-14ba-b27c-5f409d3382cd@carto.net">Or
                    even easier: use the "Vector Field Marker": <br>
                    <br>
                    <a class="moz-txt-link-freetext"
href="https://docs.qgis.org/3.10/en/docs/user_manual/style_library/symbol_selector.html?#the-vector-field-marker"
                      moz-do-not-send="true">https://docs.qgis.org/3.10/en/docs/user_manual/style_library/symbol_selector.html?#the-vector-field-marker</a>
                    <br>
                    <br>
                    Am 13.11.20 um 11:33 schrieb Andreas Neumann: <br>
                    <blockquote type="cite">Hi, <br>
                      <br>
                      Yes - you can use Geometry Generators for that.
                      Use the make_point() and make_line() expressions
                      for that. <br>
                      <br>
                      See <a class="moz-txt-link-freetext"
href="https://docs.qgis.org/3.10/en/docs/user_manual/style_library/symbol_selector.html?highlight=geometry%20generator#the-geometry-generator"
                        moz-do-not-send="true">https://docs.qgis.org/3.10/en/docs/user_manual/style_library/symbol_selector.html?highlight=geometry%20generator#the-geometry-generator</a><br>
                      <br>
                      Greetings, <br>
                      Andreas <br>
                      <br>
                      Am 13.11.20 um 11:26 schrieb L.W.: <br>
                      <blockquote type="cite">Hi, <br>
                        <br>
                        is it possible to draw automatically a line
                        between two points defined <br>
                        by 4 fields (x1,y1 - x2,y2) in an
                        attributetable? <br>
                        <br>
                        but I do not want to add a line-layer based on
                        this table nor want to <br>
                        draw the line by hand. <br>
                        <br>
                        thanks <br>
                        <br>
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