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    Hey,<br>
    By defined, im looking to see are you using a recognised Coordinate
    reference System (CRS).<br>
    For Example you mention Israeli TM, which has a EPSG code of 2093,
    does your old Grid have a recognised CRS 4141 perhaps???<br>
    Without knowing what CRS of your DXF has its very hard to do either
    of my examples.<br>
    Sorry I cant be of more help!<br>
    Regards,<br>
    <br>
    Richard.<br>
    <br>
    <div class="moz-cite-prefix">On 10/02/2017 14:37, Boaz Bar Ilan
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAP+w7XRQBHA41RNc3s=OYyw7nPVe4zms2HbYEqhJZAVLYFU82A@mail.gmail.com"
      type="cite">
      <div dir="rtl">
        <div dir="ltr">hi</div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr">thanks</div>
        <div dir="ltr">I don't know what your mean  - defined csr code -
          I switch to Israel / Israeli TM</div>
        <div dir="ltr">and I  also   enable on to fly option. so I
          couldn't understand your first advice</div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr">I tried your second advice ( by typing
          reproject). when I do run  I get  : </div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr"><span style="font-weight:600">Algorithm Reproject
            layer starting...</span>
          <span style="color:rgb(255,0,0)">
            <p style="margin:0px;text-indent:0px"><br>
              unknown See log for more details</p>
            <p style="margin:0px;text-indent:0px"><br>
            </p>
            <p style="margin:0px;text-indent:0px">thanks</p>
            <p style="margin:0px;text-indent:0px"><br>
            </p>
            <p style="margin:0px;text-indent:0px">boaz<br>
            </p>
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      <div class="gmail_extra"><br>
        <div class="gmail_quote">
          <div dir="ltr">2017-02-10 15:36 GMT+02:00 Richard McDonnell <span
              dir="ltr"><<a moz-do-not-send="true"
                href="mailto:richard.mcdonnell@opw.ie" target="_blank">richard.mcdonnell@opw.ie</a>></span>:</div>
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            .8ex;border-left:1px #ccc solid;border-right:1px #ccc
            solid;padding-left:1ex;padding-right:1ex">
            <div text="#000000" bgcolor="#FFFFFF"> Hi Boaz,<br>
              First thing I would say is to save it as a shapefile in
              its native CRS. Also you dont mention a EPSG Code, are you
              using a defined or custom CRS?<br>
              If you are using a defined CRS with a EPSG, you can use on
              the fly transformations, having the project set to the
              "New Grid" and your shapefile in its native or "Old grid".
              This can be done by right clicking on the EPSG: code on
              the bottom right of QGIS, and ticking <b>Enable 'on the
                fly' transformations<br>
              </b>The other option would be to use reproject shapefile,
              to translate the  CRS from the old to the new. you can
              find this by typing reproject into the Processing Toolbox
              Search, its one of the QGIS geoalgorithims.<br>
              Regards,<br>
              <br>
              Richard.
              <div>
                <div class="h5"><b><br>
                    <br>
                  </b><br>
                  <div class="m_4510636600008526339moz-cite-prefix">On
                    10/02/2017 12:27, Boaz Bar Ilan wrote:<br>
                  </div>
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              </div>
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                      <div dir="ltr">hi </div>
                      <div dir="ltr"><br>
                      </div>
                      <div dir="ltr">I have a dxf file ( converted from
                        dwg ) . its coodinates are in the old grid.</div>
                      <div dir="ltr"><br>
                      </div>
                      <div dir="ltr">how can I match it to the new grid
                        ? </div>
                      <div dir="ltr"><br>
                      </div>
                      <div dir="ltr">whaen I change it in the project
                        property it doesn't work </div>
                      <div dir="ltr"><br>
                      </div>
                      <div dir="ltr">thanks </div>
                      <div dir="ltr"><br>
                      </div>
                      <div dir="ltr">boaz</div>
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                    <br>
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                    <br>
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    <div class="m_4510636600008526339moz-signature">-- 

      <b><u>Richard McDonnell</u></b>

      <b><small><small><small>GIS Specialist PgD GIS AssocSCSI</small></small></small></b>

      <b><small>OPW FRM Data Management</small></b>

      <b><small>52 Stephens Green, Dublin 2.</small></b>

      <small><small>TEL: 01 6476543</small></small></div>
  
<a moz-do-not-send="true" href="http://www.opw.ie/" target="_blank"><img moz-do-not-send="true" src="http://www.opw.ie/en/media/opw-logo-december-2016.gif" height="225" width="405"></a>
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</blockquote></div>
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</blockquote>
<div class="moz-signature">-- 
<b><u>Richard McDonnell</u></b>

<b><small><small><small>GIS Specialist PgD GIS AssocSCSI</small></small></small></b>

<b><small>OPW FRM Data Management</small></b>

<b><small>52 Stephens Green, Dublin 2.</small></b>

<small><small>TEL: 01 6476543</small></small></div><p></p>
<a href="http://www.opw.ie/"><img src="http://www.opw.ie/en/media/opw-logo-december-2016.gif" width="405" height="225" /></a>
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