Line Chart¶

A line chart is one of the fundamental plot types.

XML Semantics¶

c:lineChart/c:marker{val=0|1} doesn’t seem to have any effect one way or the other. Default line charts inserted using PowerPoint always have it set to 1 (True). But even if it’s set to 0 or removed, markers still appear. Hypothesis is that c:lineChart/c:ser/c:marker/c:symbol{val=none} and the like are the operative settings.

XML specimens¶

Minimal working XML for a line plot. Note this does not reference values in a spreadsheet.:

<?xml version='1.0' encoding='UTF-8' standalone='yes'?>
<c:chartSpace xmlns:c="http://schemas.openxmlformats.org/drawingml/2006/chart"
              xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main"
              xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">
  <c:chart>
    <c:plotArea>
      <c:lineChart>
        <c:grouping val="standard"/>
        <c:ser>
          <c:idx val="0"/>
          <c:order val="0"/>
          <c:tx>
            <c:v>Series 1</c:v>
          </c:tx>
          <c:marker>
            <c:symbol val="none"/>
          </c:marker>
          <c:cat>
            <c:strLit>
              <c:ptCount val="2"/>
              <c:pt idx="0">
                <c:v>Category 1</c:v>
              </c:pt>
              <c:pt idx="1">
                <c:v>Category 2</c:v>
              </c:pt>
            </c:strLit>
          </c:cat>
          <c:val>
            <c:numLit>
              <c:ptCount val="2"/>
              <c:pt idx="0">
                <c:v>4.3</c:v>
              </c:pt>
              <c:pt idx="1">
                <c:v>2.5</c:v>
              </c:pt>
            </c:numLit>
          </c:val>
          <c:smooth val="0"/>
        </c:ser>
        <c:axId val="-2044963928"/>
        <c:axId val="-2071826904"/>
      </c:lineChart>
      <c:catAx>
        <c:axId val="-2044963928"/>
        <c:scaling/>
        <c:delete val="0"/>
        <c:axPos val="b"/>
        <c:crossAx val="-2071826904"/>
      </c:catAx>
      <c:valAx>
        <c:axId val="-2071826904"/>
        <c:scaling/>
        <c:delete val="0"/>
        <c:axPos val="l"/>
        <c:crossAx val="-2044963928"/>
      </c:valAx>
    </c:plotArea>
  </c:chart>
</c:chartSpace>